Abduct

Abduct (pronounced ab-duhkt)

(1) To carry off or lead away (a person) illegally and in secret or by force, especially to kidnap.

(2) In physiology (as a back-formation from adduction), of certain muscles, to pull (a leg, arm etc) away from the median axis of the body.

1825–1835: From the Latin abductus, past participle of abdūcere (to abduce; to lead away) and perfect passive participle of abdūcō (to lead away), the construct being ab- (from, away from) + dūcō (lead).  The sense of the verb “abduct” meaning “to kidnap” was in use by 1834 (almost certainly as a back-formation from abduction and may be compared with the earlier transitive verb “abduce”, from abdūcō.  Abduct & abducting are verbs, abductor, abductee & abduction are nouns, abducting is a verb, & abducted is a verb & adjective, abductive is an adjective and abductively is an adverb; the common noun plural is abductions.

The noun abduction (a leading away) was in use by the 1620s and was from the Latin abductionem (a forcible carrying off, ravishing, robbing), the noun of action from past-participle stem of abducere (to lead away, take away, arrest (in use a sense of “by force” often implied although in Roman humor it seems the word was used when men approvingly discussed (legitimate, non-violent) acts of seduction)).  The construct was ab- + ducere (to lead), the latter element from the primitive Indo-European deuk- (to lead).  The modern idea of abduction as “the criminal act of forcibly taking someone (ie a kidnap) was in use by 1768, the previous uses in medicine and logic continuing, confusion avoided because the contexts were so different

In English, the sixteenth century abduce conveyed the same notions as the later abduct :(1) to conduct away; to take away; to withdraw; to draw to a different part & (2) to move a limb out away from the centre of the body but became obsolete when the alternative was preferred although it retains to this day the abstract meaning “to draw a conclusion”, used in specialized fields to describe the results of metanalysis.  In applied statistics, metanalysis is a systematic procedure (there are many) used to analyse data from two or more sources although, casually, the term is sometimes used of any analysis undertaken at a higher level of abstraction than running the numbers through a “standard analytical model”.  For those not practitioners in the field(s), what is abduced appears to be the same as what is “deduced” from the data and the difference between the terms is that abduce describes a process.

El rapto de Europa (The Rape of Europa (1628-1629)), oil on canvas by Peter Paul Rubens (1577-1640), Prado Museum, Madrid (left).  It follows a 1562 work in the same vein by Tiziano Vecelli (circa 1489-1576 and known in English as Titian).  Ratto di Proserpina (The Rape of Proserpina, 1621-1622) by Gian Lorenzo Bernini (1598–1680) (right).

In modern use, few words in English have, in a historical context, been as misunderstood as “rape” because the modern understanding has become so pervasive.  Rape is now (in most Western jurisdictions) held to mean “a penetrative sexual act forced upon another in the absence of their consent” (although some feminist schools of thought argue the vista should be wider) but the use of the word “rape” (sometimes retrospectively) in so much art and sculpture from Antiquity and the Middle Ages is the cause of much misunderstanding among modern audiences.  Both the French noun and verb ultimately came from the Latin rapina (act of robbery, plundering (related to rapine and the source of much modern confusion because “rape” was long used in the sense of “pillage” or “kidnapping”)) with sense development influenced by the Latin rapidus (rapid).  In the sense of “carrying off”, the English use was in parallel with the Middle French rapture with the meaning drawn from the Medieval Latin raptura (seizure, rape, kidnapping, carrying off, abduction, snatching away) and the word rape is a cognate of this.

The verb rape was from the late fourteenth century rapen (seize prey; abduct, take and carry off by force) from the noun rape and the Anglo-French raper, from the Old French rapir (to seize, abduct) which was the standard legal term, probably directly from the Latin rapere (seize, carry off by force, abduct).  The meaning “to rob, strip, plunder (a place and, more latterly, an institution)” dates from the 1720s and was a partial revival of the old sense but applied to objects rather than people; in this sense it is still used, not because there aren’t other terms to convey the meaning but because of the special force the word “rape” exerts.  Of course, in the literature and art of the Classical world and for centuries after depictions of the “rape” of women (in the sense of being abducted) likely were anyway representations of what was a prelude to sexual violation, trophies being taken for a reason so the distinction is one of linguistic practice rather than changes in the conduct of men.  Other related words have also had similar meaning shifts.  The adjective “ravishing”, dating from the mid fourteenth century and meaning “enchanting, exciting rapture or ecstasy” (present-participle adjective from the verb ravish) is now probably associated with Mills & Boon romances but the origin was sacred, the figurative notion being “carrying off from earth to heaven”.  The term “rape” is thus now obsolete in the sense of “carry off” and replaced by “abduct”, the synonyms (used variously) including drag away, kidnap, run away with, seize, spirit away etc.

Deduction, induction & abduction

A reproduction of an early edition of The Hound of the Baskervilles with illustrations by Sidney Paget (1860–1908).  It was Paget who gave Holmes the deerstalker cap and Inverness cape which became so associated with him; neither were ever mentioned by Conan Doyle.

Some subtle differences in the meanings of the sometimes confused induction & deduction were recently discussed on the BBC’s (British Broadcasting Corporation) World Book Club in an exchange between presenter Harriett Gilbert and Dr Mark Jones, co-presenter of The Doings of Doyle podcast and editor of The Sherlock Holmes Journal.  The focus of the programme was The Hound of the Baskervilles, the third of the four crime novels by British author & physician Sir Arthur Conan Doyle (1859-1930), the work featuring the fictional detective Sherlock Holmes and his faithful sidekick Dr Watson.  Later published in a single edition, it originally serialised in The Strand Magazine between August 1901 and April 1902, something which accounts for the structure including a number of “cliff hanger” last sentences in chapters, a creative tension which would have worked well when readers eagerly were waiting seven days for the next instalment but which produces an unusual narrative effect when printed as a consolidated work.  The gothic Hound of the Baskervilles, which remains the best regarded of Conan Doyle’s novels, was set in the gloomy fog of Dartmoor in England’s West Country and was the tale of the search for a “fearsome, diabolical hound of supernatural origin”.  As a footnote the author's name is an example of how conventions of use influence things.  He's long been referred to as “Sir Arthur Conan Doyle” or “Conan Doyle” which would imply the surname “Conan Doyle” but his surname was “Doyle” and he was baptized with the Christian names “Arthur Ignatius Conan”, the “Conan” from his godfather.  Some academic and literary libraries do list him as “Doyle” but he's now referred to almost universally as “Conan Doyle” and the name “Arthur Doyle” would be as un-associated with him as “George Shaw” would with George Bernard Shaw (GBS; 1856-1950).  A popular perception probably is that immediately after uttering the phrase “Elementary, my dear Watson”, Holmes will go on to explain how, through a process of induction or deduction, how he solved whatever was the riddle.  Interestingly, although he had Holmes say both “elementary” and “my dear Watson”, Conan Doyle never used the two as a single text-string, the phrase appearing first in the US film The Return of Sherlock Holmes (1929).  The detective does however at various times use techniques of deduction, induction abduction.

The process of deduction moves from general rules, laws, premises, principles etc to specific conclusions on the basis if the assumptions are true and the reasoning valid, the conclusion must be true, thus the standard example cited in Philosophy 101 lectures: (1) premise 1: all humans are mortal; (2) premise 2: Socrates is a human, thus (3) the conclusion: Socrates is mortal.  What deduction relies upon is necessity (the conclusion follows with certainty).  The process of induction describes drawing conclusions from specific observations or facts so that general rules or principles can be developed.  The significance of induction is that conclusions cannot be guaranteed to be true and are assessed in terms of probability and efficacy is judged by the degree to which things tend towards certainty.  An example would be: (1) observation: every day in known history the sun has risen in the east thus (2) the conclusion: tomorrow the sun will rise in the east.  While the conclusion goes beyond observed facts (ie there is no way to view “tomorrow”), the conclusion seems probable.

Induction systems: 1955 Mercedes-Benz 300 SLR Uhlenhaut Coupé (left), 1961 Chrysler 300G Convertible (with “long ram” Sonoramic tubes, centre) and 1993 Mercedes-Benz 600 SEC (right).

Before they became almost universally covered with bland plastic moldings, the more photogenic induction systems fitted to ICEs (internal combustion engine) exerted on some a real fascination, the straight or curved tubular structures recalling architectural traditions from the baroque to brutalism.  What the tubes did was deliver the fuel/air mixture to the combustion chambers and their exaggerated length was to exploit an aspect of fluid dynamics related to Sir Isaac Newton's (1642–1727) first law of motion, more commonly known as the law of inertia: “An object at rest tends to stay at rest and an object in motion tends to stay in motion” and it’s the second part for which the tubes were designed.  During the intake cycle of an engine, the fuel-air mix flows through the intake manifold, past the intake valve, and into the cylinder, then the intake valve shuts.  At that point, the law of inertia comes into play: Because the air was in motion, it wants to stay in motion but can’t because the valve is shut so it piles up against the valve with something of a concertina effect.  With one piece of air piling up on the next, the air becomes compressed and, being under pressure, this stuff has to go somewhere so it turns around and flows back through the intake manifold in the form of a pressure wave.  This pressure wave bounces back and forth in the runner and if it arrives back at the intake valve when the valve opens, it’s drawn into the engine.  This bouncing pressure wave of air and the proper arrival time at the intake valve creates a low-pressure form of supercharging but for this to be achieved all variables have to be aligned so the pressure wave arrives at the intake valve at the right time.  This combination of synchronized events is known as the “resonant conditions”.  All that physics is of course interesting but even those bored by the details can sometimes just admire the lines of the more exotic induction systems

The process of abduction sometimes is described as “drawing an inference to reach the most plausible explanation” which sounds a bit wishy-washy but it’s an essential element in the analytical toolbox.  In use, abduction means moving from an observation (or a opinion, which need not represent an orthodox view) to develop a hypothesis to explain it.  In this process, there should be symmetry, such as in an expression like: (1) if A were true, (2) B would be expected. (3) If B is observed, (4) A thus might be true.  So the observation “the car is covered in raindrops” means the hypothesis “it must have rained” seems reasonable.

Dr Barrett was joking.

For reasons uncertain (though there's been much speculation), since the early 1960s there have been many claims of “alien abduction”.  Many theories exploring the phenomenon come from the mental health community and discuss the effects of dreams, false memory syndrome and such but of note is the trend emerged only after the “space race” had begun and tales of “flying saucers” had for some time been part of popular culture.  The fondness alien abductors clearly have for examining abductees with “anal probes” seems to have been identified only in the 1980s and the volume of published accounts must have encouraged the trend; the devices in this context became a staple of comedy routines.

Conan Doyle’s Sherlock Holmes is most associated with deduction but at times used all three reasoning methods and the boundaries between them are not always rigid, one sometimes blurring into another because a deduction can be dependent on a prior induction or abduction.  In The Adventure of the Speckled Band (1892) there is a clear example of the deductive (general > specific > necessary conclusion) process.  In that short story, Holmes began with the premise a person cannot from the outside unlock a locked bedroom door if one does not have the key and because the victim’s door was locked from the inside and the only key was with them in the bedroom, the murderer must have entered by some other means (which turned out to be the ventilator).  In the novel A Study in Scarlet (1887), the example of the inductive method is illustrated by Holmes astonishing knowledge of the nature of the ashes left by cigars, the detective’s explanation being that by “repeated experiments”, his study of the material allowed him to identify vital characteristics, different tobaccos leaving different ashes.  From this emerged the general rule that ashes can identify the source tobacco and thus perhaps also the smoker.  In The Hound of the Baskervilles, although there are many examples of deduction, they ultimately are contingent upon one fundamental product of the inductive method: There is no such thing as the supernatural so there can be no spectral hound stalking the moors.  From this it follows there must be a mortal flesh & blood dog, albeit one large and frightening.  It’s the simplest explanation, even though one not certain until tested by the beast being hunted down and killed.

Quartervent

Quartervent (pronounced kwawr-ter-vent)

A small, pivoted, framed (or semi-framed) pane in the front or rear side-windows of a car, provided to optimize ventilation.

1930s: The construct was quarter + vent.  Dating from the late thirteenth century, the noun quarter (in its numerical sense) was from the Middle English quarter, from the Anglo-Norman quarter, from the Old French quartier, from the Latin quartarius (a Roman unit of liquid measure equivalent to about 0.14 litre).  Quartus was from the primitive Indo-European kweturtos (four) (from which the Ancient Greek gained τέταρτος (tétartos), the Sanskrit चतुर्थ (caturtha), the Proto-Balto-Slavic ketwirtas and the Proto-Germanic fedurþô).  It was cognate to quadrus (square), drawn from the sense of “four-sided”.  The Latin suffix –arius was from the earlier -ās-(i)jo- , the construct being -āso- (from the primitive Indo-European -ehso- (which may be compared with the Hittite appurtenance suffix -ašša-) + the relational adjectival suffix -yós (belonging to).  The suffix (the feminine –āria, the neuter -ārium) was a first/second-declension suffix used to form adjectives from nouns or numerals.  The nominative neuter form – ārium (when appended to nouns), formed derivative nouns denoting a “place where stuff was kept”.  The Middle English verb quarteren, was derivative of the noun.  Dating from the mid fourteenth century, vent was from the Middle English verb venten (to furnish (a vessel) with a vent), a shortened form of the Old French esventer (the construct being es- + -venter), a verbal derivative of vent, from the Latin ventus (wind), in later use derivative of the English noun.  The English noun was derived partly from the French vent, partly by a shortening of French évent (from the Old French esvent, a derivative of esventer) and partly from the English verb.  The hyphenated form quarter-vent is also used and may be preferable.  Quarter-vent is a noun; the noun plural is quarter-vents.  In use, the action of using the function provided by a quarter-vent obviously can be described with terms like quarter-venting or quarter-vented but no derived forms are recognized as standard.

1959 Cadillac Eldorado Biarritz.

Like almost all US passenger cars, the post-war Cadillacs all had quarter-vents (“vent windows” or “ventiplanes” to the Americans) and on the most expensive in the range they were controlled by an electric motor, a feature optional on the lesser models.  This was a time when the company's slogan “Standard of the World” really could be taken seriously.  In 1969, with General Motors (GM) phasing in flow-through ventilation, Cadillac deleted the quarter-vents, meaning purchasers no longer had to decide whether to pay the additional cost to have them electrically-activated (a US$71.60 option on the 1968 Calais and De Ville).  GM's early implementation of flow-through ventilation was patchy so the change was probably premature but by 1969 the system was perfected and as good as their air-conditioning (A-C), famous since the 1950s for its icy blast.    

The now close to extinct quarter-vents were small, pivoted, framed (or semi-framed) panes of glass installed in the front or rear side windows of a car or truck; their purpose was to provide occupants with a source of ventilation, using the air-flow of the vehicle while in motion.  The system had all the attributes of other admirable technologies (such as the pencil) in that it was cheap to produce, simple to use, reliable and effective in its intended purpose.  Although not a complex concept, GM in 1932 couldn’t resist giving the things an impressively long name, calling them “No Draft Individually Controlled Ventilation” (NDICV being one of history’s less mnemonic initializations).  GM’s marketing types must have prevailed because eventually the snappier “ventiplanes” was adopted, the same process of rationality which overtook Chrysler in 1969 when the public decided “shaker” was a punchier name for their rather sexy scoop which, attached directly to the induction system and, protruding through a carefully shape lacuna in the hood (bonnet), shook with the engine, delighting the males aged 17-39 to whom it was intended to appeal.  “Shaker” supplanted Chrysler’s original “Incredible Quivering Exposed Cold Air Grabber” (IQECAG another dud); sometimes less is more.  Adolf Hitler (1889-1945; Führer (leader) and German head of government 1933-1945 & head of state 1934-1945) suggested a good title for his book might be Viereinhalb Jahre [des Kampfes] gegen Lüge, Dummheit und Feigheit (Four and a Half Years of Struggle against Lies, Stupidity and Cowardice) but his publisher thought that a bit ponderous and preferred the more succinct Mein Kampf: Eine Abrechnung (My Struggle: A Reckoning) and for publication even that was clipped to Mein Kampf.  Unfortunately, the revised title was the best thing about it, the style and contents truly ghastly and it's long and repetitious, the ideas within able easily to be reduced to a few dozen pages (some suggest fewer but the historical examples cited for context do require some space).

The baroque meets mid-century modernism: 1954 Hudson Italia by Carrozzeria Touring.  

Given how well the things worked, there’s long been some regret at their demise, a process which began in the 1960s with the development of “through-flow ventilation”, the earliest implementation of which seems to have appeared in the Hudson Italia (1954-1955), an exclusive, two-door coupé co-developed by Hudson in Detroit and the Milan-based Italian coachbuilder Carrozzeria Touring.  Although some of the styling gimmicks perhaps haven’t aged well, the package was more restrained than some extravagances of the era and fundamentally, the lines were well-balanced and elegant.  Unfortunately the mechanical underpinnings were uninspiring and the trans-Atlantic production process (even though Italian unit-labor costs were lower than in the US, Touring’s methods were labor-intensive) involved two-way shipping (the platforms sent to Milan for bodies and then returned to the US) so the Italia was uncompetitively expensive: at a time when the bigger and more capable Cadillac Coupe de Ville listed at US$3,995, the Italia was offered for US$4,800 and while it certainly had exclusivity, it was a time when there was still a magic attached to the Cadillac name and of the planned run of 50, only 26 Italias were produced (including the prototype).  Of those, 21 are known still to exist and they’re a fixture at concours d’élégance (a sort of car show for the rich, the term an un-adapted borrowing from the French (literally “competition of elegance”) and the auction circuit where they’re exchanged between collectors for several hundred-thousand dollars per sale.  Although a commercial failure (and the Hudson name would soon disappear), the Italia does enjoy the footnote of being the first production car equipped with what came to be understood as “flow-through ventilation”, provided with a cowl air intake and extraction grooves at the top of the rear windows, the company claiming the air inside an Italia changed completely every ten minutes.  For the quarter-vent, flow-through ventilation was a death-knell although some lingered on until the effective standardization of A-C proved the final nail in the coffin.

1965 Ford Cortina GT with eyeball vents and quarter-vents.

The car which really legitimized flow-through ventilation was the first generation (1962-1966) of the Ford Cortina, produced over four generations (some claim it was five) by Ford’s UK subsidiary between 1962-1982).  When the revised model displayed at the Earls Court Motor Show in October 1964, something much emphasized was the new “Aeroflow”, Ford’s name for through-flow ventilation, the system implemented with “eyeball” vents on the dashboard and extractor vents on the rear pillars.  Eyeball vents probably are the best way to do through-flow ventilation but the accountants came to work out they were more expensive to install than the alternatives so less satisfactory devices came to be used.  Other manufacturers soon phased-in similar systems, many coining their own marketing trademarks including “Silent-Flow-Ventilation”, “Astro-Ventilation” and the inevitable “Flow-thru ventilation”.  For the Cortina, Ford took a “belt & braces” approach to ventilation, retaining the quarter-vents even after the “eyeballs” were added, apparently because (1) the costs of re-tooling to using a single pane for the window was actually higher than continuing to use the quarter-vents, (2) it wasn’t clear if there would be general public acceptance of their deletion and (3) smoking rates were still high and drivers were known to like being able to flick the ash out via the quarter-vent (and, more regrettably, the butts too).  Before long, the designers found a way economically to replace the quarter-vents with “quarter-panes” or “quarter-lights” (a fixed piece of glass with no opening mechanism) so early Cortinas were built with both although in markets where temperatures tended to be higher (notable South Africa and Australia), the hinged quarter-vents remained standard equipment.  When the Mark III Cortina (TC, 1970-1976) was released, the separate panes in any form were deleted and the side glass was a single pane.

Fluid dynamics in action: GM's Astro-Ventilation.

So logically a “quarter-vent” would describe a device with a hinge so it could be opened to provide ventilation while a “quarter-pane”, “quarter-light” or “quarter-glass” would be something in the same shape but unhinged and thus fixed.  It didn’t work out that way and the terms tended to be used interchangeably (though presumably “quarter-vent” was most applied to those with the functionality.  However, the mere existence of the fixed panes does raise the question of why they exist at all.  In the case or rear doors, they were sometimes a necessity because the shape of the door was dictated by the intrusion of the wheel arch and adding a quarter-pane was the only way to ensure the window could completely be wound down.  With the front doors, the economics were sometimes compelling, especially in cases when the opening vents were optional but there were also instances where the door’s internal mechanisms (the door opening & window-winding hardware) were so bulky the only way to make stuff was to reduce the size of the window.  In some cases, manufacturers "solved" the problem by making rear side glass fixed which lowered their costs but it was never popular with customers.

1976 Volkswagen Passat B1 (1973-1980 (1988 in Brazil)) without quarter-vents, the front & rear quarter-panes fixed.

The proliferation of terms could have come in handy if the industry had decided to standardize and the first generation Volkswagen Passat (1973-1980) was illustrative of how they might been used.  The early Passats were then unusual in that the four-door versions had five separate pieces of side glass and, reading from left-to-right, they could have been classified thus: (1) a front quarter-pane, (2) a front side-window, (3) a rear side-window, (4) a rear quarter-pane and (5) a quarter-window.  The Passat was one of those vehicles which used the quarter-panes as an engineering necessity to permit the rear side-window fully to be lowered.  However the industry didn’t standardize and in the pre-television (and certainly pre-internet) age when language tended to evolve with greater regional variation, not even quarter-glass, quarter-vent, quarter-window & quarter-pane were enough and the things were known variously also as a “fly window”, “valence window”, “triangle window” and (possibly annoying architects) “auto-transom”, the hyphen used and not.

PA Vauxhall Velox (1957-1962): 1959 (left) and 1960 (right).  The one-piece rear window was introduced as a running-change in late 1959.

Before flow-through ventilation systems and long before A-C became ubiquitous, quarter-vents were the industry standard for providing airflow to car interiors and it was common for them to be fitted on both front and rear-doors and frequently, the rear units were fixed quarter-panes (the lowering of the side window thing).  A special type of fixed quarter-pane were those used with rear windows, originally an economic imperative because initially it was too expensive to fabricate one piece glass to suit the “wrap-around styles becoming popular.  Improved manufacturing techniques let the US industry by the early 1950s overcome the limitations but elsewhere, the multi-piece fittings would continue to be used for more than a decade.

1957 Mercury Turnpike Cruiser (left), details of the apparatuses above the windscreen (centre) and the Breezeaway rear window lowered (right)

The 1957 Mercury Turnpike Cruiser was notable for (1) the truly memorable model name, (2) introducing the “Breezeway" rear window which could be lowered and (3) having a truly bizarre arrangement of “features” above the windscreen.  Unfortunately, the pair of “radio aerials” protruding from the pods at the top of the Mercury’s A-pillars were a mere affectation, a “jet-age” motif decorating what were actually air-intakes.

Brochure for 1957 Mercury Turnpike Cruiser promoting, inter-alia, the Breezeway retractable rear window.

A three-piece construction was however adopted as part of the engineering for the “Breezeway”, a retractable rear window introduced in 1957 on the Mercury Turnpike Cruiser.  It was at the time novel and generated a lot of publicity but the concept would have been familiar to those driving many roadsters and other convertibles which had “zip-out” rear Perspex screens, allowing soft-top to remain erected while the rear was open.  Combined with the car’s quarter-vents, what this did was create the same fluid dynamics as flow-through ventilation.  The way Mercury made the retractable glass work was to section the window in a centre flat section (some 80% of the total width), flanked by a pair of fixed quarter-panes.  After the run in 1957-1959, it was resurrected for use on certain Mercury Montclairs, Montereys and Park Lanes.

1958 (Lincoln) Continental Mark III Convertible (with Breezeway window).  The platform was unitary (ie no traditional chassis) which with modern techniques easily was achievable on the sedans and coupes but the convertible required so much additional strengthening (often achieved by welding-in angle iron) that a Mark III Convertible, fueled and with four occupants, weighed in excess of 6000 lb (2720 kg). 

Ford must have been much taken with the feature because it appeared also on the gargantuan “Mark” versions of the (Lincoln) Continentals 1958, 1959 & 1960, dubbed respectively Mark III, IV, & V, designations Ford shamelessly would begin to recycle in 1969 because the corporation wanted the new Mark III to be associated with the old, classic Continental Mark II (1956-1957) rather than the succeeding bloated trio.  The “Breezeway” Lincolns also featured a reverse-slanted rear window, something which would spread not only to the Mercurys of the 1960s but also the English Ford Anglia (105E, 1959-1968) and Consul Classic (1961-1963) although only the US cars ever had the retractable glass.  The severe roofline was used even on the convertible Continentals, made possible by them sharing the rear window mechanism used on the sedan & couple, modified only to the extent of being retractable into a rear compartment.

1974 Lincoln Continental Town Car with mini vents.

In the 1970s Lincoln introduced the novelty of “mini-vents” which raised and lowered separately from the main side-glass.  Smoking was at the time socially acceptable (in some circles it must have appeared obligatory) and there was a lot of it about so engineers devoting time to finding a better way for those wanting to “flick ash out the window” while running the A-C wasn’t surprising.  Those visualizing a “flick” in process might be surprised such a thing existed because if in a modern vehicle, its shape honed in wind-tunnels and computer simulations, what would likely happen would be “blowback”.  That’s because the shape is aerodynamically efficient (with a “buffer zone” very close to the surface) and disrupting that by lowering a window shifts the inside pressure from positive to negative, ask thus being “sucked-in”.  However, on something like a 1974 Lincoln Continental (which conceptually can be imagined as one brick sitting atop two), the buffer zone can (depending on speed) extend as as much as 3 feet (close to a metre) from the body.  The meant ash was flicked into the “buffer zone” and it didn’t end up back in the cabin.  The vents didn’t last (another casualty of the quest for lower drag) but as late as 1985 they appeared as a US$72 extra and were known in the industry as the “smoker's option”.

1967 Chevrolet Camaro 327 Convertible with vent windows (left), 1969 Chevrolet Camaro ZL1 without vent windows (centre) and Lindsay Lohan (b 1986) & Jamie Lee Curtis (b 1958) in 1969 Chevrolet Camaro Convertible during filming of the remake of Freaky Friday (2003), Los Angeles, August 2024.  Freakier Friday is slated for release in August, 2025).

Through Chevrolet's COPO (Central Office Production Order) system, 69 1969 Camaros were built with the ZL1, an all-aluminum version of the 427 cubic inch (7.0 litre) big-block V8.  The COPO had been established as an efficient way to coordinate the production of fleet orders (law enforcement agencies, utility companies etc) for runs of vehicles in a certain specification but the drag racing community and others worked out it could be used also as “back-door” way to order small runs of cars with otherwise unavailable high-performance engines.  The Freakier Friday Camaro (badged as a 396 SS but several were used during filming including at least one with a roll-over bar for the stunt work) lacks the vent windows which were deleted from the range after 1967 when “Astro-Ventilation” (GM’s name for flow-through ventilation) was added.  In North American use, the devices typically are referred to as “vent windows” while a “quarter light” is a small lamp mounted (in pairs) in the lower section of the front bodywork and a “quarter-vent” is some sort of (real or fake) vent installed somewhere on the quarter panels.  As flow-through ventilation became standardized and A-C installation rates rose, Detroit abandoned the quarter-vent which pleased industry because it eliminated both parts and labor, lowering the cost of production (the savings absorbed as profits rather than being passed to the customers).  On the small, cheap Ford Pinto (1971-1980), removing the feature saved a reported US$2.16 per unit but, being small and cheap, A-C rarely was ordered by Pinto buyers which was probably a good thing because, laboring under the 1970s burdens of emission controls, the weight of  impact-resistant bumper bars and often an automatic transmission a Pinto was lethargic enough with out adding power-sapping A-C compressor and plumbing.  Responding (after some years of high inflation) to dealer feedback about enquires from Pinto customers indicating a interest in the return of vents, Fords cost-accountants calculated the unit cost of the restoration would be some US$17.  

Ford Australia’s early advertising copy for the XA Falcon range included publicity shots both with and without the optional quarter-vents (left) although all sedans & station wagons had the non-opening, rear quarter-panes, fitted so the side window completely could be lowered.  One quirk of the campaign was the first shot released (right) of the “hero model” of the range (the Falcon GT) had the driver’s side quarter-vent airbrushed out (how “Photoshop jobs” used to be done), presumably because it was thought to clutter a well-composed picture.  Unfortunately, the artist neglected to defenestrate the one on the passenger’s side.

Released in Australia in March 1972, Ford’s XA Falcon was the first in the lineage to include through-flow ventilation, the previously standard quarter-vent windows moved to the option list (as RPO (Regular Production Option) 86).  Because Australia often is a hot place and many Falcons were bought by rural customers, Ford expected a high take-up rate of RPO 86 (it was a time when A-C was expensive and rarely ordered) so the vent window hardware was stockpiled in anticipation.  However, the option didn’t prove popular but with a warehouse full of the parts, they remained available on the subsequent XB (1973-1976) and XC (1976-1979) although the take-up rate never rose, less the 1% of each range so equipped and when the XD (1979-1983) was introduced, there was no such option and this continued on all subsequent Falcons until Ford ceased production in Australia in 2016, by which time A-C was standard equipment.

Great moments in tabloid journalism: Sydney's Sun-Herald, Sunday 25 June, 1972.  The Sun-Herald was then part of the Fairfax group, proving Rupert Murdoch (b 1931) can't be blamed for everything.

The infrequency with which RPO 86 was ordered has been little noted by history but on one car with the option the fixtures did become a element which enabled a owner to claim the coveted “one-of-one” status.  In August 1973, near the end of the XA’s run, with no fanfare, Ford built about 250 Falcons with RPO 83, a bundle which included many of the parts intended for use on the stillborn GTHO Phase IV, cancelled (after four had been built) in 1972 after a newspaper generated one of their moral panics, this time about the “160 mph super cars” it was claimed the local manufacturers were about to unleash and sell to males ages 17-25.  Actually, none of them were quite that fast but not often has the tabloid press been too troubled by facts and the fuss spooked the politicians (it's seldom difficult to render a "minister horrified").  Under pressure, Holden cancelled the LJ Torana V8, Ford the GTHO Phase IV and Chrysler reconfigured it's E55 Charger 340 as a luxury coupé, available only with an automatic transmission and no high-performance modifications.

The “quarter-vent XA RPO 83 GT”: 1973 Ford Falcon XA GT sedan (Body Identification: 54H; Model Code: 18238) in Calypso Green (code J) with Onyx Black (code B) accents over Black Vinyl (Code B) with 351 4V V8 (Code T) and four-speed manual transmission (Code L).  It’s the only one produced with both RPO 83 (a (variably fitted) bundle of parts left-over from the aborted GTHO Phase IV project) and RPO 86 (front quarter-vent windows).  In the collector market they're referred to usually as “the RPO83 cars”.

So in 1973 Ford's warehouse still contained all the parts which were to be fitted to the GTHO Phase IV so they’d be homologated for competition and although the rules for racing had been changed to ensure there was no longer any need to produce small batches of “160 mph (257 km/h) super cars”, Ford still wanted to be able to use the heavy-duty bits and pieces in competition so quietly conjured up RPO 83 and fitted the bundle on the assembly line, most of the cars not earmarked for allocation to racing teams sold as “standard” Falcon GTs.  Actually, it’s more correct to say “bundles” because while in aggregate the number of the parts installed was sufficient to fulfil the demands of homologation, not all the RPO 83 GTs received all parts so what a buyer got really was “luck of the draw”; with nobody being charged extra for RPO 83, Ford didn’t pay too much attention to the details of the installations and many who purchased one had no idea the parts had been included, the manual choke's knob the only visually obvious clue.  Ford made no attempt to publicize the existence of RPO 83, lest the tabloids run another headline.  It’s certain 250 RPO 83 cars were built (130 four-door sedans & 120 two-door Hardtops) but some sources say the breakdown was 131 / 121 while others claim an addition nine sedans were completed.  Being a genuine RPO 83 car, the Calypso Green GT attracts a premium and while being only RPO 83 with quarter-vent windows is not of any great significance, it does permit the prized “one-of-one” claim and not even any of the four GTHO Phase IVs built (three of which survive) had them.  In the collector market, the “one-of-one” status can be worth a lot of money (such as a one-off convertible in a run of coupés) but a Falcon’s quarter-vents are only a curiosity.

The Bathurst 1000 winning RPO83 Falcon GTs, 1973 (left) & 1974 (right).

All else being equal, what makes one RPO83 more desirable than another is if it was factory-fitted with all the option's notional inventory and most coveted are the ones with four-wheel disk brakes.  Because the project was focused on the annual endurance event at Bathurst's high-speed Mount Panorama circuit, the disks were as significant as an additional 50 horsepower and a few weeks before the RPO 83 run they'd already been fitted to the first batch of Landaus, which were Falcon Hardtops gorped-up (what bling used to be called) with hidden headlights, lashings of leather, faux woodgrain and a padded vinyl roof, all markers of distinction in the 1970s and, unusually, there was also a 24 hour analogue clock.  Essentially a short wheelbase, two-door LTD (which structurally was a Falcon with the wheelbase stretched 10 inches (250 mm) to 121 (3075 mm)), the Landau was not intended for racetracks but because it shared a body shell and much of the running gear with the Falcon GT Hardtops, Ford claimed Landau production counted towards homologation of the rear disks.  Fearing that might be at least a moot point, a batch were installed also on some of the RPO83 cars and duly the configuration appeared at Bathurst for the 1973 event, their presence of even greater significance because that was the year the country switched from using imperial measures to metric, prompting the race organizers to lengthen the race from 500 miles (804 km) to 625 (1000), the Bathurst 500 thus becoming the Bathurst 1000.  RPO83 Falcon GTs won the 1973 & 1974 Bathurst 1000s.

The “quarter-vent XB GT”: 1973 Ford Falcon XB GT sedan (Body Identification: 54H; Model Code: 18338) in Polar White (Code 3) with Onyx Black (code B) accents over Parchment Vinyl (Code P) with 351C 4V V8 (Code T) and four-speed manual transmission (Code L).  The only one produced with RPO 86 (front quarter-vent windows).

So with a large stock sitting in the warehouse, despite the dismally low take-up rate, the quarter-vents remained available when the XB Falcon (1973-1976) range was released and of the 1952 XB GT sedans sold (there were also 949 two-door Hardtops) a single buyer ticked the RPO 86 box.  Again, although granting the coveted “one-of-one” status, it’s not something of great significance although the car to which the pair of vents was fitted is one of the more desirable XB GTs because it was one of the 139 XB GTs built with the combination of the “4V Big Port” 351 V8 and four-speed Top Loader manual transmission.  The first 211 XB GTs received the fully-imported 351 Clevelands, “using up” what was in stock, subsequent models switching to the locally made variant.

US Built 351C-4V in 1973 XB Falcon GT.

Ford Australia had been importing from the US the high-performance 351C-4V (4 venturi (ie two-barrel carburetor) V8 for use in the GT but when advised US production of that configuration was ending, the decision was taken to produce a local “high-performance” version of the 351 using the 351C 2V “small port” cylinder heads with “open” combustion chambers and a four-barrel carburetor; Ford Australia only ever manufactured the “small port” heads.  That means the Australian nomenclature “351C-4V” (small ports & four barrel carburetor) differs in meaning from that used in the US where it translated to “big ports & four barrel carburetor”.  It sounded a retrogressive step and while there was some sacrifice in top-end power, the antipodean combo turned out to be ideal for street use because the fluid dynamics of the flow rate through the smaller ports made for better low and mid-range torque (most useful for what most drivers do most of the time) whereas the big-port heads really were optimized for full-throttle operation, something often done on race tracks but rarely on public roads… even in the Australia of the early 1970s.  Still, some did miss the responsiveness of the high-compression US-built engine, even if the difference was really apparent only above 80 mph (130 km/h).

The other ceremony which happened in Australia on 11 November, 1975: Ford Australia's photo shoot, Melbourne, Victoria.

Although only 2,901 XB GTs were produced, as the “halo” model it was an important image-maker and the XB range proved successful with almost 212,000 sold over its 34 month life (over 18 months in a generally more buoyant economy XA production had reached over 129,000).  Stylistically, the XB was an improvement over the poorly detailed XA and much was made (among Fords claimed 2,056 changes from the XA) of the headlight’s high-beam activation shifting from a foot-operated button to a steering column stalk which, thirty-odd years on from the achievement of nuclear fission, doesn’t sound like much but motoring journalists had for years been advocating for “a headlight flasher” having been impressed by the “safety feature” when being “flashed” on the German Autobahns by something about to pass at high speed.  More welcome still was the GT’s four-wheel disk brakes, acknowledged as good as any then in volume production.  The success of the XB coincided with Ford Australia’s two millionth vehicle leaving the assembly line so on Tuesday 11 November, 1975, Ford’s public relations office invited journalists and camera crews to a ceremony to mark the occasion, laying on the usual catering (including free cigarettes!) to ensure a good attendance.

Ford Australia pre-release publicity shot for the XB range release (embargoed until 15 September 1973).

1973 Ford Falcon XB GT Hardtop (Body Identification: 65H; Model Code: 18318) in Yellow Blaze (Code M) with Onyx Black (code B) accents over Black Vinyl (Code B) with 351C 4V V8 (Code T) and three-speed T-Bar automatic transmission (Code B).  Because the various side windows used by the Hardtop, Ute and Panel Van derivatives were different to fit the door and roof shapes, the quarter-vents were never offered on those and RPO 86 on the Hardtops was the dreaded vinyl roof in tan.  The sunroof (RPO 10) was a rarely (168 Falcons and 244 Fairmonts) specified option.

Unfortunately, the pictures of the dutifully polished XB Fairmont (a Falcon with some gorp) sedan didn’t generate the publicity expected because the next editions of the daily newspapers (there were then a lot of those and they sold in big numbers) had a more sensational story to cover: On that Tuesday Sir John Kerr (1914–1991; governor-general of Australia 1974-1977) had dismissed from office Gough Whitlam (1916–2014; prime minister of Australia 1972-1975) and his troubled administration.  It was the first time the Crown had sacked a prime-minister since William IV (1765–1837; King of the UK 1830-1837) in 1834 dismissed Lord Melbourne (1779–1848; prime minister of the UK 1834 & 1835-1841) and although in 1932 Sir Philip Game (1876–1961; governor of NSW 1930-1935) had sundered the commission of Jack Lang (1876–1975; premier of New South Wales 1925-1927 & 1930-1932), most Australians who pondered such things believed the days of meddling viceroys were done.  Sir John however proved the royal prerogative still existed (although paradoxically perhaps now only in the hands of a monarch’s representative rather than their own) and the footnote in the history of Australian manufacturing passed almost unnoticed.

Leap

Leap (pronounced leep)

(1) To spring through the air from one point or position to another; to jump.

(2) Quickly or suddenly to move or act.

(3) To cause to leap.

(4) A spring, jump, or bound; a light, springing movement.

(5) The distance covered in a leap; distance jumped.

(6) A place leaped or to be leaped over or from.

(7) A sudden or abrupt transition.

(8) A sudden and decisive increase.

(8) In folk mythology, to copulate with or coverture of (a female beast) (archaic).

(9) In slang, to copulate with (a human) (archaic).

(10) A group of leopards.

(11) In figurative use, a significant move forward.

(12) In figurative use, a large step in reasoning (often one that is not justified by the facts, hence the sceptical phrase “a bit of a leap” & “quite a leap”).

(13) In mining (also used in geology), a fault.

(14) In aquatic management, a salmon ladder; a trap or snare for fish, historically constructed with fallen from twigs; a “weely”.

(15) In music, a passing from one note to another by an interval, especially by a long one, or by one including several other intermediate intervals.

(16) An intercalary measure, best-known as “leap year” & “leap second”.

(17) In pre-modern measures of weight, half a bushel.

Pre 900: From the Middle English lepen, from the Old English hlēapan, from the Proto-West Germanic hlaupan, from the Proto-Germanic hlaupaną (a doublet of lope, lowp, elope, gallop, galop, interlope and loop).  It was cognate with the German laufen (to run; to walk), the Old Norse hlaupa the Gothic hlaupan, the West Frisian ljeppe (to jump), the Dutch lopen (to run; to walk), the Danish løbe and the Norwegian Bokmål løpe, from the primitive Indo-European klewb- (to spring; stumble) (and may be compared with the Lithuanian šlùbti (to become lame) & klùbti (to stumble).  The verb forms are tangled things.  The third-person singular simple present tense is leaps, the present participle leaping, the simple past leaped or leapt (lept & lope the archaic forms) and the past participle is leaped or leapt or (lept & lopen the archaic forms).  That leapt and leaped remain in concurrent use is another of those annoy things in English which are hangovers from their ancient entrenchments in regional use and, as a general principle leapt tends to be is preferred educated British English while leaped is seen more frequently in North America (although leapt is in those places not uncommon, especially in areas with historical ties to England).  The transitive sense as in “pass over by leaping” was in use by the early fifteenth century and there are references to the children’s game “leap-frog” documented in the 1590s, and so obvious was the use of that figuratively it probably quickly was adopted but the first attested entry dates from 1704.  The familiar “to leap tall buildings in a single bound” comes from the Superman comics of the 1940s although in idiomatic use, “leaps” has been paired with “bounds” since at least since 1720.  Leap is a noun, verb & adjective, leaper & leapling are nouns and leaping and leapt & leaped are verbs; the noun plural is leaps.

The leap year is “a year containing 366 days” and use dates from late fourteenth century Middle English lepe gere, a genuine innovation because no equivalent term existed in the Old English. The origin is thought to come from the effect of fixed festival days, which normally advance one weekday per year, to “leap” ahead one day in the week.  The Medieval Latin was saltus lunae (omission of one day in the lunar calendar every 19 years), the Old English form being monan hlyp.  The adjustments happened in the calendars of many cultures, always with the purpose of ensuring the man-made devices for tracking dates (and therefore time) remained consistent with the sun; summer needed always to feel like summer and winter like winter.  Different methods of handling the intercalary were adopted and in England the bissextile was the device.  The noun & adjective bissextile (plural bissextiles) dates from the early 1580s and was from the Latin bisextilis annus (bissextile year), the construct being bisextus + -ilis, deconstructed as bis- (two; twice; doubled) + sextus (sixth) + dies (day) and was a reference to the Julian calendar's original reckoning of its quadrennial intercalary day as a 48-hour 24 February (subsequently distinguished as the two separate days of the sixth day before the March calends (sexto Kalendas Martii) and the “doubled sixth day”.  In modern use, 24 February is now understood as “five days before 1 March” but in Roman use it was called “the sixth” because the counting of dates was then inclusive.

The most physically demanding (and dangerous) part of Lindsay Lohan’s impressive leap into a Triumph TR4 in Irish Wish was undertaken by a body double (the young lady in this case deserving the “stunt-double” title).

Ready to leap: Lindsay Lohan with stunt double Aoife Bailey (b 1999).

Lindsay Lohan's Netflix movie Irish Wish (2024) was said by Irish reviewers to be "a mix of Leap Year meets Just My Luck meets Freaky Friday in which Lohan stars as quiet book editor Maddie Kelly, who embarks on a journey to find love by learning to love herself first."  Like Irish Wish, Leap Year (2010) was filmed in Ireland but unlike 2010, 2024 was a leap year.  IMCDB’s (Internet Movie Cars Database) comprehensive site confirmed the Triumph TR4 was registered in Ireland (ZV5660, VIN:STC65CT17130C) as running the 2.1 litre version (17130C) of the engine.  The Triumph 2.1 is sometimes listed as a 2.2 because, despite an actual displacement of 2138 cm³; in some places the math orthodoxy is ignored and a "round up" rule applied, something done usually in jurisdictions which use displacement-based taxation or registration regimes, the "rounding up" sometimes having the effect of "pushing" a vehicle into a category which attracts a higher rate.  Those buying a TR4 for use in competitions with a 2.0 litre limit could specify the smaller unit from the factory but being based on a tractor engine (!) and thus fitted with wet-cylinder liners, “sleeving” a 2.1 back to 2.0 wasn’t difficult.  The lack of the "IRS" (independent rear suspension) badge on the trunk (boot) lid indicates the use of the live rear axle and that detail was of no significance in the plot although, given the leap scene, a convertible of some sort would have been required.  Although on the road the IRS delivered a smoother ride, those using TR4s in competition usually preferred the live rear-axle because it made the car easier to steer “with the throttle”.

The replacement of the bissextile by the then novel 29 February every four years-odd appears such an obviously good idea it seems strange it took centuries universally to be adopted in England although the documents reveal the shift was certainly well in progress by the mid-fifteenth century and in an echo of later practices, the more curmudgeonly the institution, the slower the intrusion of the new ways, the Admiralty and houses of parliament ignoring 29 February until well into the 1500s.  It wasn’t until the Calendar (New Style) Act (1750) passed into law that 29 February received formal recognition in UK law.  The reform worked well from the start but in some jurisdictions, government lawyers took no chances and for the handful of souls born on a 29 February, their birth dates were deemed to be 28 February or 1 March for all legal purposes (eligibility for drivers licenses or pensions, age of consent etc).  One born on 29 February is a “leapling” and there are said to be a few as five million of these lonely souls on the whole planet.  In many countries hospitals and midwives note the frequency with which expectant mothers approaching March request staff do whatever is required to avoid them giving birth to a leapling, fearing the child will feel deprived by having fewer birthdays than their siblings of friends.  The math of the leap year is it is one (1) evenly divisible by 4, (2) except for years are evenly divisible by 100 except that (3) years evenly divisible by 400 are leap years.  So, 2000 was while 1900 was not; 2100 will not be a leap year, but 2400 will be.  However, because the rotation of the Earth is changing (and thus the length of days), as is its distance from the Sun, even a 29 February now and then is not enough to keep everything in sync.  So, there are also leap seconds, spliced in as needed and unlike 29 February, only those dealing with atomic clocks and such notice addition.

Leap is common in idiomatic use:  To do something in “leaps and bounds” suggests commendably quick progress.  A “leap in the dark” is to take some action while being uncertain of consequences and the related “leap of faith” is trusting in something that cannot be seen or proven so in a sense they’re two ways of saying much the same thing although “leap of faith” does also imply some trust in something or someone.  To have one’s heart “leap into one’s throat” is an allusion to the sensation felt sometimes in the throat when something scary happens.  To “leap for joy” is much the same as “jump for joy” and describes joyous happiness.  To “leap at” something is enthusiastically to take up an offer, avail one’s self of an opportunity etc.  When doing so, one might be said to “leap into action”.  To be cautioned to “look before you leap” is to suggest one should be sure of things before doing something; if one ignores the advice then it’s a “leap of faith” or a “leap into the dark”.  To “leapfrog” is to skip a step in some process, the connotation almost always positive.  To suggest someone “take a flying leap” is much the same as telling them to “go jump in the lake” or, as is now more common: “fuck off”.  The concept of the "quantum leap" was in 1913 introduced (as the "quantum jump") by Danish physicist Niels Bohr (1885–1962) in his "Bohr model" of the atom.  In the strange world of quantum mechanics it describes the discontinuous change of the state of an electron in an atom or molecule from one energy level to another and was adopted figuratively to refer to an "abrupt, extreme change".  In modern use, it has come to mean a large or transformative change, a use to which pedants sometimes object but this is how the English language works.  The “leap year bug” is jargon rather than a idiom and describes the growing number of instances of problems caused by computers (and related machines) for whatever reason not correctly handling the existence of leap years.  Most are caused by human error and some are not being rectified because the original error has been built upon to such an extent that it’s easier to handle the bugs as they occur.  If something is said to be “a bit of a leap” or “quite a leap” it means there's some scepticism about the relationship one thing and another (often cause & effect). 

Jaguar's Leaper

Left to right (top row): Buick, Packard & Pierce-Arrow; (centre row): Rolls-Royce, Bentley & Mercury; (bottom row): Duesenberg, Mercedes-Benz & Nash.

The radiator cap of course began as a mere functional device which could be unscrewed to allow coolant to be added but, inevitably, possibilities occurred to stylists (they weren’t yet “designers”) and soon the things were a small platform for miniature (though many were anything but small) works of art to covey an image to suit at least what was imagined to be the character of the vehicle on which they sat.  Although such embellishments are now remembered for their decorative qualities (and many in the art deco era during the inter-war were lovely creations), some genuinely were functional and “topping-up” the coolant was for decades a frequent part of the motoring experience so, however attractive they may have been, their use as a handle means they may be thought architectonic as well as artistic. The Jaguar Leaper had fangs and while that sounds ominous for pedestrians, some of the radiator cap & hood emblems looked more lethal still and even before the “safety movement” of the 1960s, there had been discussions about the dangers they posed.  For the safety of pedestrians, the few survivors now are spring-loaded or retract when the vehicle is in motion.

Leaper on 1960 Jaguar Mark 2 3.8.  Owners found the fitting handy when opening the hood.

“Leaper” really was the factory’s name for the lunging feline figure which for decades adorned the space atop or behind the grill on many Jaguars.  The story of the origin is murky and while there may be some myth-making in it, the most likely explanation seems to be that when late in 1934 newly appointed Ernest William "Bill" Rankin (1898-1966, Advertising Manager and Public Relations Officer, Jaguar Cars 1934-1966) settled (from a list of charismatic wild animals) on “Jaguar” as a name for a new “sporty” SS (then the company name) car and, part of the “brand identity” was to design an appropriate radiator cap ornament.  Rankin was acquainted with the draftsman & technical illustrator Gordon Crosby (1885–1943) who he knew to be an amateur sculptor and it was to him the commission was granted.  Crosby delivered a prototype cast in bronze and according to company mythology, Jaguar’s founder, Sir William Lyons (1901–1985) thought it looked like “a cat shot off a fence” but liked the concept so, lengthened and softened into something sleeker, the refined shape emerged as the “Leaper”, first fitted in 1938.  The tales do differ, some suggesting Sir William’s “cat shot off a fence” thoughts were prompted by the sight of an earlier, third–party ornament which inspired him to task Mr Rankin with finding a replacement and, in the absence of documentary proof, Jaguar fans can pick the story they prefer.

Leaper on 1950 Jaguar Mark V 3.5.  The Mark V (1948-1951) was the last Jaguar with the external radiator cap and thus the last time a Leaper was also a cap-handle.

The SS name came from the Swallow Sidecar Company which Lyons had in 1922 co-founded with William Walmsley (1892–1961), reorganized as “S.S. Cars” after 1934 when Walmsley withdrew and the adoption in 1935 of “Jaguar” as a model name was mere marketing and nothing to do with the by then unsavoury reputation of the German SS (Schutzstaffel (protection squad), which began in 1923 as a small security guard for Adolf Hitler (1889-1945; Führer (leader) and German head of government 1933-1945 & head of state 1934-1945) but which evolved into a kind of parallel army for the Nazi Party and later into an armed formation almost a million-strong).  Even by 1945 when motor vehicle production resumed and the corporate name S.S. Cars formerly was changed to “Jaguar Cars Limited”, the rationale was the stronger brand identity of the latter rather than an aversion to anything associative with the Nazis.  Indeed, in 1957 Jaguar returned to SS as designation with the release of the XKSS, a road-going version of the Le Mans-winning D-Type race car.

An early Leaper (left) and the later "in flight" version (right) with the fully extended hind legs.

First fitted to production SS Jaguars in 1938, it became standard equipment on all until 1951 when the Mark V was discontinued.  As the last Jaguar to feature an external radiator cap, the assumption was that was the end of the Leaper and the strikingly modernist XK120 which created a sensation at the 1948 London Motor Show had only a radiator grill; the spirit of the age was that the ornaments were antiquated relics.  However, elsewhere in the industry, modernity and nostalgia managed peacefully to co-exist and while there was no revival of external radiator caps, the ornaments refused to die and from expensive Mercedes-Benz and Rolls-Royce to the most humble Austins and Chevrolets, the chromed constructions continued and sometimes grew, those not able to sit atop grills (many now with no “top” as such) re-imagined as hood (bonnet) ornaments.  So, in 1955 the Jaguar Leaper made a comeback on the new small saloon (the 2.4), the mascot using the subtle post-war re-working of the hind legs, made more outstretched to suggest the big cat in “mid-leap”, about to take its prey.

Rendered usually in fibreglass anodized with a shiny silver finish (although some, daringly, were gloss black), large leapers were often a feature of Jaguar dealerships (left).  Once decommissioned, they were sometimes sold and, applying dreadful and indefensible gender stereotyping, were a good gift for the garden (right) of the Jaguar-owning husband or boyfriend who "has everything". 

On the saloons, the design lasted 14 years and it was offered as an option on the XK150 (1957-1961) for while the XK120 (1948-1954) in 1948 had seemed streamlined modernity exemplified, the world had moved on and by 1957, although much improved and still stylish, the lines now seemed baroque rather than minimalist; the Leaper now fitted in well.  For the big Mark X saloon in 1961, paradoxically, a smaller Leaper was cast and this remained in use until the car (by then called 420G) was retired in 1970 so it was thus the last of the early Leapers, the XJ unadorned upon its debut in 1968 with the last of the legacy saloons (240, 340 (1967-1969 and both renamed and often de-contented versions of the Mark 2 (1959-1967)), S-Type (1963-1968) & 420 (1966-1968) produced in 1969.  The aftermarket though remained buoyant with many XJs and XJSs fitted with Leapers by owners who liked the look or dealers who thought they would.  It does seem they were fitted at the plant to many of the New Zealand-assembled XJs and the factory may have been in two minds about it: the hoods of all XJs (1968-1992) included on the underside skin- panel marks indicating where the holes should be drilled.  Not until the X300 XJ in 1994 would they again be factory-fitted to some models (in “pedestrian friendly” spring-loaded form) and this continued until 2005.

1958 Jaguar XK150 DHC (drop head coupé, left) and 1967 420G (right).

When in 1957 the Leaper appeared as an option on the XK150, Jaguar used the standard part fitted to the saloons but for the Mark X in 1961, a smaller version was cast, despite the car (stylistically something of a preview of the “fuselage” Chryslers of 1969) being the widest then produced in the UK (and it would remain so until 1992 when the company released the XJ220).  So, although the Leaper genuinely was smaller, the compression of relativities exaggerated the effect.  Jaguar took the opposite approach to Mercedes-Benz, the Germans creating a larger cartouche (the three-pointed star inscribed within a circle which sat atop the grill) for use on the big 600 Grosser (1963-1981).  What that did was maintain the relative dimensions familiar from the symbol’s use on smaller models.

Leaper on a US market 1999 Jaguar Vanden Plas (X308) which in the US market were fitted with the fluted grill used otherwise only on the Daimler variants.  The solid-timber picnic tables (a feature adored by the English middle class) were much admired.

The US market Vanden Plas models were the only Jaguars on which the Leaper was used in conjunction with the fluted grill fitted to the home market and RoW (rest of the world) Daimlers.  Because it was Mercedes-Benz and not Jaguar which after 1966 held the US rights to the Daimler brand, Daimlers since then sold in the US were badged as Jaguar Vanden Plas although they were otherwise identical to Daimlers including the fluted fittings.  The supercharged Daimler Vanden Plas was the most exclusive of the X308s and was noted for details such as the rear picnic tables being crafted from solid burl walnut timber rather than the veneer over plastic used on cheaper models.

1970 S2 Jaguar E-Type (top) from the "R2" run of 1000-odd (almost all of which were registered as 1971 models) with the Leaper badges on the flanks (left-side p/n BD35865 (left); right side p/n BD35866 (right)).  A Growler appeared in the front centre-bar (right).

The Series 2 E-Type (1968-1971) was marred by the clutter of bigger bumpers, protuberant headlight assemblies, badges and side-marker lights and so much did they detract from lovely, sleek lines of the Series 1 cars (1961-1967), bolting a luggage rack to the boot (trunk) lid probably seemed no longer the disfigurement it would once have been.  The disfigurement had begun with the transitional E-Types (the so-called 1.25 & 1.5 cars built in 1967) and indicate what would have been necessary to ensure post-1973 MGBs & MG Midgets conformed with the US headlight height stipulation.  It could have been done on the MGB but the shape of the Midget made the modification impossible (at least within aesthetic acceptability) but BL (British Leyland) took the cheaper route (always their preferred option) and raised the suspension height, compromising handling and lending the things a slight cartoonish quality but by then power had been so reduced by emission controls the view probably was handling prowess was no longer so important.  Remarkably, demand for both the by the antiquated MGB and Midget remained strong until sales finally ended in 1980.  The left-hand (left) and right-hand (right) fender badges, being directional, were different part numbers (BD35865 & BD35866 respectively) and those used on E-Types were silver on black whereas the variants used on the XJs were gold on black, some of which depicted the leaping feline at a slight slope, both matters of note for those wishing to restore cars to the challenging “factory original” standard.

1976 Jaguar XJC 4.2.

This XJC is one of many in the wild which, at some point, was fitted with a Leaper but it’s a shame whoever made the addition didn't at the same time remove the unfortunate vinyl roof.  Like the headlight covers sometimes added to the later (S1.25 & 1.5) S1 E-Types, removing an XJC's vinyl roof is one of the rare exceptions Jaguar's usually uncompromising originality police not only tolerate but encourage.  The Leaper badges on the flanks (behind the front wheel arch) were factory-fitted on the Series 1 (1968-1973) & Series 2 (1973-1979) XJs but whether on the XJ or E-Type were just disfiguring clutter and having them in silver & gold and with the feline sometimes at a different angle seems a minor but needless complication to the production process.

Still under the control of the doomed British Leyland, Jaguar lacked the resources fully to develop the XJC (1975-1998) and although it was displayed to much acclaim in 1973, not for another two seasons would it appear in showrooms, the programme starved of capital because greater priority was afforded to the XJ-S (1975-1996 and from 1991 officially “XJS”, a change most of the world informally had long adopted) which was thought a product with greater potential in the vital US market.  The XJC thus debuted with problems including (1) flawed sealing of the side windows which resulted in intrusive wind-noise, (2) a tendency of the doors to droop because, although longer and thus heavier than those of the four-door saloons, the same hinges were used and (3) the pillarless (ie a two-door hardtop) construction induced a slight flexing in the roof’s metal and while not a structural issue, because regulators had (quite sensibly) had lead removed from paint, the paint on the roof was prone to crazing.  The solutions (the development of exotic paint additives or re-designing the roof with heavier-gauge metal) would have been expensive and time-consuming so, in the British Leyland tradition, the Q&D (quick & dirty) approach was preferred and a vinyl roof was glued on but modern paints mean the ugly vinyl can now be removed so the roof’s lovely lines can be admired.

Jaguar’s cancelled Growler (left) and the new (EV-friendly) Leaper.  According to the MBAs, the message the Leaper conveys is: “Always leaping forward, it is a representation of excellence and hallmark of the brand.”

The companion bad to the Leaper was the “Growler” which featured the head of a Jaguar, mid-growl.  There were over the years many version of the Growler and it appeared variously on trunk-lids, grills, steering wheel bosses and such.  Because as a fitting it was never rendered in a way likely to cause injury to pedestrians, it might have been supposed it wouldn’t be vulnerable to cancellation but it transpired the Growler poses a significant moral hazard, presumably on the basis that while the somehow sensuously feminine Leaper is acceptable, the Growler embodies toxic masculinity.  Whether Jaguar’s MBAs discovered this from focus groups or divined it from their own moral superiority hasn’t be revealed but in 2024 the company announced the Growler would not re-appear when the new range was launched in 2025.  Given the public response to the DEI (diversity, equity & inclusion) themed preview of the company's EV (electric vehicle) re-brand, the presence or not of the Growler may not be of great significance but a new expression of the Leaper, (with something of a stylistic debt to the IBM logo), would be included so there’s that.

1985 Jaguar XJ-SC with after-market large Leaper.  Because of regulations, US the market XJ-S used quad circular headlights rather than the twin oval units otherwise fitted and while many don't like them, the "four eyes" look was closer to Jaguar's traditions.

Leapers have been fitted to some XJ-S and XJSs where they really don’t belong, the factory never installing one.  If it’s done, the least-worse approach is to use the small Leaper from the Mark X/420G and remove the Growler badge (if fitted) while the WCS (worst case scenario) is to leave Growler in place and add a large Leaper which really is too much clutter; with pre-modern Jaguars, less usually is more.  Still, for those who insist, reproductions of the classic 4¾ inch (120 mm) feline predator are available and those manufactured by German Jaguar tuner Jochen Arden comply with the EU’s rigorous safety regulations in that maximum pedestrian impact protection is afforded by the design integrating both lateral and horizontal rotation of the assembly.  The part is supplied as a kit which includes adapter plates to suit a number of otherwise leaperless jags and, being German-made, there is of course a “lifetime corrosion warranty”, the small print limited to (1) rusty Leapers purchased after November 2011, (2) not damaged and (3) validity restricted to the original purchaser and presentation of the original invoice.

1988 Jaguar XJ-S V12 Convertible by Hess & Eisenhardt (left) and 1989 Jaguar XJ-S V12 Convertible (right).  Note the bulkier soft-top used by the factory, necessitated by retention of the coupé's fuel tank.  The after-market, anodized plastic fittings on the wheel arches are, on an XJ-S, as undesirable as a Leaper.

When introduced in 1975, the XJ-S was available only as a coupé, the prevailing feeling in industry it was only a matter of time until US regulators outlawed convertibles.  For a number of reasons, the ban was never imposed and by the 1980s toes were again being dipped in the topless market, Jaguar in 1982 releasing the XJ-SC which featured a targa-like structure somewhere between that used on the Triumph Stag (1970-1977) and the various landaulets with “fold-back” roofs.  It was thus not a true “convertible” and sales were disappointing, demand limited further by the thing being purely a two-seater, the rear compartment re-configured as a generously-sized storage apace.  The dealer-feedback (notably from the US) however indicated there would be demand for a convertible XJ-S, something confirmed by US specialists Hess & Eisenhardt selling some 2000 of the conversions fabricated between 1986-1988.  Accordingly, in 1988 the factory released an XJ-S convertible and although also a two-seater, it proved a great success.  Interestingly, the factory’s design almost replicated the approach earlier taken by Jochem Arden with most of the coupe’s components retained.  This did necessitate the soft-top not folding especially low, unlike the Hess & Eisenhardt cars although to achieve that, modifications were made to the fuel tank and among some that proved controversial.

1968 Mercury Cougar GT-E 428 in Augusta Green Poly (left) and 1968 Mercury Cougar GT-E 427 in Grecian Gold (right).  Other than the Jaguaresque iconography, about the only thing European about the Cougar was the use of the French spelling of “litre”.  Ford in 1966-1967 also used a “7 Litre” badge, for a model which was fitted variously with the 427 & 428 cubic inch (7.0 litre) FE V8s.  The interchangeable badges were probably not a cost-saving measure but may have been to avoid the complaints Shelby American received as a consequence of fitting both the 427 and the less robust 428 to AC Shelby Cobras universally badged as “427”.

1968 Mercury Cougar GT-E 427 in Grecian Gold (left side badge).

Ford's Mercury division also had a stylized feline, introduced in 1967 when the Cougar debuted.  Unlike Jaguar's symbol, the cougar wasn't leaping but was caught more in mid-prowl although Mercury's marketing department would probably have liked people to have thought of it like that; the Cougar was that sort of car.  Although in colloquial use, cougars are often referred to as “big cats”, in zoological taxonomy, felinologists restrict the “big cat” classification to the genus Panthera (lions, tigers, leopards, snow leopards & jaguars) and one defining feature of the Panthera cats is their ability to roar, made possible by a specific adaptation in the larynx and hyoid bone.  Lacking the anatomical feature, like cheetahs, cougars are not able to roar.  Often known as the mountain lion, puma, or Puma concolor, despite their size, the cougar is more closely related to smaller cats so it’s properly a “large” cat rather than a “big cat”.