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Friday, June 26, 2026

Skeg

Skeg (pronounced skeg)

(1) In shipbuilding, a fin-like projection sometimes supporting a rudder and protecting the propeller(s) at its lower end, located abaft a sternpost or rudderpost.

(2) In the design of smaller boats, an extension of the keel, designed to improve steering.

(3) In the slang of naval architects (in certain contexts), a stump or branch (the after-part of a ship's keel).

(4) In the slang of the GM (General Motors) stylists, a “lower fin”, matching the, seen in embryonic form on the 1959 Pontiac and used on certain 1961 Oldsmobiles and the 1961-1962 Cadillacs.

(5) The fin which acts as a stabilizer on a surfboard.  To suffer some injury after being hit by one of these fins is to be “skegged”.

(6) In Australian slang, a surfer; a person who leads the lifestyle of a surfer (used also derisively in the form “fake skeg” of those who adopt the style an appearance without actually surfing.

(7) A type of wild plum (obsolete).

(8) A kind of oat (obsolete).

(9) In Northern English dialectal use, a look or glance.

(10) In some cultures, a slang term applied to youth suggesting slovenliness, a predilection to petty crime and other anti-social behavior; also used widely in Scottish slang for a surprising variety of purposes including legs, trousers, dirt, scotch eggs, sex and women of loose virtue.

1590–1600: From a dialectal term for a stump, branch, or wooden peg, from the Dutch scheg (cutwater), of Scandinavian origin and related to the Swedish skog and the Old Norse & Icelandic skegg (projection on the stern of a boat).  In some Nordic languages, skegg means “beard” and was from the Old Norse skegg, from the Proto-Germanic skaggijÄ…, from the primitive Indo-European skek, kek-, skeg & keg- (to jump, skip, move, hurry).  In English slang, skeggy is (1) the coastal Lincolnshire town of Skegness or (2) an inhabitant of Skegness.  The name of the Skegness is though a construct of the Old Norse skegg (beard) + -nes (headland) and was thought a reference to the geography, the original settlement situated farther east at the mouth of The Wash (thus jutting out like a beard from a face).  A link with the Faroese skegg (to jump, skip, move, hurry (and source of the given name "Skeggi")) is thought unlikely.  Skeg is a noun and skegged is an adjective; the noun plural is skegs.

A gang of four Sceggs, Sydney, Australia.

The skegs of nautical architecture should not be confused with the homophone Sceggs, the acronym for students of Sydney Church of England Girls Grammar School (S.C.E.G.G.S.), seen also in the adjectival forms sceggesque & sceggish (one whose style suggests something similar to the stereotypical student of the school); Those adjectives exist because Scegg is also "a look" and there are students from schools other than S.C.E.G.G.S so described, often in the form "she's such a scegg".  

Lindsay Lohan in wet suit, with surfboard, Malibu, 2011.  The stabilizing skeg is the black protrusion at the back of the board.

On nautical vessels, skegs where they exist fulfil a significant function but they are not an essential part of hull design.  A skeg is an external structural feature, a vertical tapering projection permanently fixed at the aft, usually close to the centre-line.  Most are located in front of the rudder and structurally can often be considered a sternward extension of the keel (the internal, longitudinal members which lend much strength of the hull).  Although in military vessels there are additional functions, the most significant contribution of a skeg is in hydrodynamics, a skeg designed to influence the flow patterns and thus affecting the dynamics of both the rudder (which is usually in line with the skeg) and propeller(s).  The design is thus a finely tuned equation because while a skeg inherently induces drag, the way it alters the flow pattern can reduces the drag and resistance suffered by the rudder and propeller(s), essentially by transforming the turbulent characteristics of the flow to laminar at the stern.  Historically, skegs were a vital component in maintaining a course and that’s still an important consideration in smaller vessels but in larger craft, improved rudder and advanced navigational as well as stabilization technologies like thrusters have meant skegs are no longer of the same significance in maintaining directionality.

An USN (US Navy) Iowa class battleship, showing the inner set of propeller shafts wholly enclosed in a pair of skegs.  On the big ships, the skegs were designed also to be load-bearing supports while in dry-dock.

In the modern age, skegs became an unusual feature on warships, a relative few so equipped and the designs varied, some with only par of their shafts inside skegs while others encased all.  Although the traditional design imperatives were shared with other ships, for navies, they offered the advantage of affording some degree of protection for rudders and propellers against torpedo attack.  Historically, another important attribute of skegs was what they added to a hull’s structural strength, making the (inherently weaker) stern resistant to outside forces and all the last of the US Navy’s dreadnoughts (Iowa, New Jersey, Missouri & Wisconsin, launched 1943-1944 and in commission variously until in 1992 the last was struck the Naval Vessel Register) featured skegs.  Their hulls narrowed towards the stern and to save weight lacked the sternpost plates the British, German and Japanese navies always fitted to their battleships; the skegs compensated for this, offering a hull with similar rigidity.

The US Navy’s South Dakota class battleships (South Dakota, Indiana, Massachusetts & Alabama, launched 1941-1942 and in commission 1942-1947) were fitted with an unusual set of skegs, the design dictated by the relatively short hull, the large outboard skegs helping to reduce the adverse effects of fluid dynamics induced by the stern's abrupt end.

However, advantages in engineering and metallurgy meant much of the functionality afforded by skegs came to be achieved in other ways so skegs became unfashionable in naval architecture.  The modeling and simulations made possible by supercomputers meant hull designs could be rendered which mastered the turbulence caused by fluid dynamics so rudders and propellers were less affected, making skegs in many cases a source of performance-sapping skin-friction drag with little compensating benefit.  Indeed, not only did this hamper performance, in some cases excessive vibration was caused, something which could only to a degree be ameliorated by changes to the propellers’ configurations.

Cadillac’s Skegs, 1961-1962

Cadillac Coupe DeVille: 1959 convertible (left) & 1960 hardtop (right).

The 1959 Cadillac’s tail-fins are the best remembered and most emblematic of the brief, extraordinary era during which the absurdly macropterous flourished.  They’re rightly known as “peak-fin” but it’s a myth they were the tallest because, measured from the ground, those on the 1961 Imperial are about a half-inch (12 mm) more vertiginous.  The attractions of the style however were fading and from 1960, GM began to tone things down, Chrysler following the lead (Ford and AMC (American Motors Corporation) never really got involved in the big fin business).  Another cultural phenomenon is that because of the large number of pink 1959 Cadillacs which now exist, many assume they were a common sight when new, the things perhaps made memorable by the sight of the one owned by the admirable Jayne Mansfield (1933–1967).  However, the factory never made a pink 1959 Cadillac and in the era, it was only in 1956 such a color was on the option list and Ms Mansfield had one of those while her 1959 convertible received a custom re-paint.

An inspiration, a step in the evolution and the result: A captured German V2 rocket (1945, left), a full-size clay mock up of a design proposal for the 1961 Cadillac (1958, centre) and 1961 Cadillac Coupe de Ville convertible (left).  The V2 is on display at the Australian War Museum, Canberra, Australia and the clay mock-up Cadillac was photographed at the General Motors Technical Center, Warren, Michigan.

For the 1961 range, Cadillac further pruned the fins but as compensation, the design staff added a "lower fin" and these, informally, they called “skegs”.  While in a sense just another of the era's many extravagances, the outgrowths could have been part of something even stranger because among the design proposals which emerged from the GMADS (GM Advanced Design Studios) was one which clearly was the ultimate expression of the motif of the 1950s which borrowed so much from the aerospace industry.  The proposed fins essentially were those of ballistic missiles which for decades were an evolution from the German Vergeltungswaffen zwei (V-2), developed first by the German military with the code name Aggregat 4 (A4).  Vergeltungswaffen is translated variously as "retaliatory weapons" or "reprisal weapons" but in English use is often written as “vengeance weapons”.  Aerodynamically, what was proposed by the ADS may have had something to commend it and certainly, such was the placement and size of the fins they'd have in some way interacted with the air-flow.  Whether the design was ever subjected to wind-tunnel testing (this was years before computers could emulate such research) isn't know but the look was sufficiently favored for an expensive, full-sized clay model to be rendered.  Ultimately the longer, though perhaps more restrained, skegs seen on the 1961 & 1962 cars were preferred.

1959 Buick Invicta Concept.

Detroit's stylists in the 1950s not only sketched a car with a big dorsal fin but authorization was granted to build one to test public reaction.  There was a precedent for the "third fin" because the Czech manufacturer Tatra had for years used them (out of necessity) and they'd provided essential stability for many LSR (land speed record) vehicles.  The Invicta concept didn't proceed to production.

Those who think Detroit's cars of the late 1950s & early 1960s were sometimes bizarre should look at the design proposals that were rejected.  Despite the clear exuberance in the the imagination, there's never been anything to suggest the stylists were stimulated by anything stronger than an after work martini.  Compared with some of the clay mock-ups, what emerged from the production lines hinted at rather than emulated missiles but should it be thought what was rendered in clay was wild, the archives of the GMTC (GM Technical Center) contain a wealth of sketches of truly bizarre design studies which didn't make the cut to reach the hands of the modelers.  Presumably, those sketches which survive are those the stylists thought deserved to be remembered and there must of been those which even the designer concluded needed to be shredded.  As the archives also demonstrate, those who criticize the fins and "bullet" taillights on the 1959 Cadillac have reasons to be grateful even stranger things were rejected.

Cadillac’s “skeg years”: 1961 (left) and 1962 (right).  There was a time when this sort of thing was just part of commercial orthodoxy. "The past is a foreign country: they do things differently there."

It was an era of annual styling changes and switching the orientation of taillights from the horizontal to vertical was typical of what stylists each season did to “refresh” the line, a process which came to be known as “facelifting” (ie a figurative use from cosmetic plastic surgery: altering the appearance while retaining the underlying structure).  Although this basic body would have a four-year life (1961-1964), the abandonment of the skegs for its final two seasons was, by facelift standards, a quite major update, one prompted by a change at the top of GM’s design’s studios.  Also of note is the roofline on the 1961 Cadillac four-window Sedan DeVille ((Body Style 6239, top left) which used an implementation of GM’s so-called “flat-top”.

1959 Chevrolet Impala Sport Sedan (Flat Top).  This was the year of the "bat-wings" and "cats eyes" taillights.

Along with the contemporary “bubbletop”, in its pure form, GM’s flat-top lasted only two seasons (1959-1960) but the two are now Detroit’s most admired rooflines of the post-war years.  The “bubbletop” was a direct tribute to fighter aircraft but the flat-top (it was also dubbed “Flying Wing” but GM internally referred to the blade-like structure as the “cantilevered top configuration”) was mid-century modernism.  Available exclusively on the four-door hardtops, each GM division (Chevrolet, Buick, Oldsmobile, Pontiac & Cadillac) offered the dramatic look (production-line rationalization made economically viable by all five sharing a single, core structure) although there were several designations.

1959 Cadillac Four Window Sedan (upper) and 1959 Pontiac Vista (lower).

Up-market Buick (Four-Door Hardtop), and Cadillac (Four Window Sedan) weren’t very imaginative while Chevrolet and Oldsmobile choose Sport Sedan; only Pontiac showed much imagination in picking Vista, an allusion to the unusually good 360o visibility the style afforded (although the curves in the glass did produce some distortions).  Shamelessly, even after ceasing to offer flat-tops, Pontiac continued to use the Vista name.  Cadillac’s final flat-top fling came in 1961 with a modified version using less rear overhang but the market impact was muted, the more conventional six-window four-door outselling it by more than five-to-one margin as preferences shifted towards for formal lines.  However, the look didn’t at once die because it lingered on the four-door Chevrolet Corvair until 1965 and between 1962–1978 the motif appeared on the Alfa Romeo Giulia.

Cadillac’s take on the “long & slightly less long” of it: 1961 Cadillac Six Window Sedan de Ville (Body Style 6329L, left) and 1961 Cadillac Town Sedan (Body Style 6399C, right).  In the brochures, the terms “Town Sedan” and “Short Deck” both were used.

One quirk of Cadillac’s brief embrace of the skeg was there were two iterations: skeg long and skeg short.  Whether in response to dealer feedback or in anticipation of some owners preferring their Cadillac in a more conveniently sized package, between 1961-1963 a “short-deck” option was made available on certain body styles.  Offered first on the six-window Sedan de Ville (as the “Town Sedan”), an encouraging 3,756 were built so the option was in 1962 offered on the four-window de Ville Sedan (Body Style 6398 and now called “Park Avenue”) but sales dropped to 2600.  The coming of the 1963 models marked the retirement of the short-lived skegs which thus ended their brief moment as something decorative although they continued the functional role in marine architecture.

1963 Cadillac Four-Window Sedan de Ville (Body Style 6239, left) and 1963 Cadillac Sedan de Ville Park Avenue (Body Style 6398, right).

Although smaller cars were selling well in other market sectors, among Cadillac buyers, the decline of interest in anything smaller was confirmed in 1963 when only 1575 of the Park Avenues were sold.  The 129.5 inch (3289 mm) wheelbase was common to the whole Sedan de Ville range but the “short deck” models were shorter by 7 inches (178 mm) for the first two seasons and an even more obvious 8 inches (203 mm) in 1963.  Space utilization was obviously a little better but the market had spoken; fewer than 8,000 of the short-deck models sold while the standard editions shipped in the tens of thousands, the flirtation with (slightly) more efficient packaging abandoned for 1964; in the course of the following decade, the Sedan de Ville would grow another seven inches (178 mm) and gain over 400 lb (181 kg).  It should be noted that by international standards, the truck capacity of even the abbreviated models was still quite generous, able effortlessly to accommodate two sets of golf clubs, something which later became something of a de-facto standard used in assessing the practicality of sports cars.  Jaguar used this feature as a selling point when the XK8 (1996-2006) was introduced because it wasn’t possible with all versions of the old E-Type (1961-1974).

1958 Cadillac Series 62 : Extended Length Sedan (Body Style 6239EDX, left) and the standard Sedan (Body Style 6239, right).

There was in the early 1960s much criticism that “full-size” US cars had become too big but the “short deck” venture was a departure for Cadillac which had for some years been making things bigger and in 1958 the company had even included the “Series 62 Extended Length Sedan”.  The Series 62 Sedan was already an impressive 216.8 inches (5.5 m) long but the Extended Length version measured an even more imposing 225.3 (5.7), the additional 8.5 inches (216 mm) all in the rear deck, creating a more capacious trunk (boot).  Whether buyers just liked the look or there really were a lot of them with much luggage, the elongated sedan sold well, some one in five of the sedans having the big trunk and there was of course a healthy industry in jokes about Mafia functionaries and other figures in organized crime grateful finally to have more space to transport the corpses.  Surprisingly perhaps, despite mafia hit men contributing to to sales numbers of 20,952 of the 103,455 (excluding Eldorados and “chassis only” sales) Series 62s produced in 1958 (some 20%), the Extended Length Sedan proved a single-season one-off.

For 1963, the short-deck models might have re-appeared for another dismal season but the skegs were abandoned, never to return.  The fins the design studio found harder to forsake, conscious perhaps it was on the 1948 Cadillac they’d first appeared.  Then, modestly sized, they’d been an allusion to the tail-planes used on the twin-boomed Lockheed P-38 Lightning (1939) but the fashion had passed and the fins had to go so, inch by inch, there was a retreat from the heights and exuberance of 1959 until in 1966 they were vestigial, a hint which for decades would be retained.

1961 Oldsmobile Super 88.  The rear skegs were thought necessary to offset the “pointed-look” of the fenders and the front ones (the closest equivalent in nautical use being hydrofoils) were there just so the front bumper matched the lines of the rear, emulating Pontiac’s approach in 1959.

Within GM, the skegs were not exclusive to Cadillac, appearing also on the 1961 full-sized Oldsmobile 88 & 98 although the motivation of the designers differed.  What Cadillac in 1961-1962 did was nothing more than a styling gimmick, concocted at a time when it was obvious the moment of the big fins was passing but the motif still exerted such a pull that they were re-interpreted on the path to extinction.  In the Oldsmobile design office, the skeg had a different purpose, the protrusions deemed necessary as a device to counterbalance the rearward point of the quarter panel that terminated in a “cigar-shape”.  Mercedes-Benz had used a (more conventional) variation of the idea of a “balancing appendage” when in 1957 the 300d (W189, 1957-1962) appeared with rear fenders enlarged and re-shaped to disguise the pre-war style of the coachwork used on the W186 (300, 300b & 300c; 1951-1957) which came to be referred to as the "Adenauer" because several were used as state cars by Konrad Adenauer (1876–1967; chancellor of the FRG (Bundesrepublik Deutschland (Federal Republic of Germany; the old West Germany, 1949-1990).

1969 Alfa Romeo Spider (Duetto).

Interesting, between 1966-1969, the Alfa Romeo Spider (Type 105/155 and known informally known as the Duetto) featured the memorable Osso di Seppia (round-tail, literally “cuttlefish”) coachwork which resembled what Oldsmobile did in 1961.  After 1970 and until the end of production in 1994, the Spider used variants of the Kamm tail which increased luggage capacity and presumably also conferred some aerodynamic advantage.  A professional designer could write a long, learned essay explaining why the later Kamm tail was a more accomplished achievement which avoided the Osso di Seppia's flaws but in the collector market it's the cigar-shaped original the purists covet.  Had the Italians added skegs as Oldsmobile did, they’d have had more about which to complain.

1959 Pontiac Bonneville Convertible.  In 1959 Pontiac’s big news was the “split grill” which would for decades be a brand signature and the five inch (125 mm) increase in the track, lending the division that year’s most memorable slogan: “Year of the Wide Track”.  Given all that, the modest skegs weren’t much noticed, especially because, at the rear, eyes were drawn to the pair of small blades adorning the upper surface.  The idea was first seen on the 1953 Chevrolet Corvette (where they’d appeared on the taillight nacelles (pods)) and although often referred to as “finettes”, in the documents of the GM Design Studio they were “taillight bezels” or “ornamental finlets”.

1959 Pontiacs: Bonneville (left) and Catalina (right).

The skegs were less noticeably skeggish than the later implementations by Oldsmobile and Cadillac because they were smaller and, at the rear, installed in the horizontal rather than the acute angle which made them so obvious on Cadillacs.  At the front, the angle was less than adopted by Oldsmobile.  Pontiac also used the “long rear deck” as a marker of a model’s place in the hierarchy, the Bonneville at 220.7 in (5,606 mm) in length being seven inches longer than the lower-priced Catalina at 213.7 in (5,428 mm).  While two inches (25 mm) of the difference was absorbed by the Bonneville’s longer wheelbase (124 in (3,150 mm) vs 122 inches (3,099 mm), the remaining bulk was found in eth rear deck.  However, unlike the Cadillacs, there were no “short & long skegs”, the bumpers of both Pontiacs being identical although there were other markers of “pricetaggery”, the Bonneville’s elliptical taillights noticeably elongated.

1955 Ford La Tosca.

A half-decade before Cadillac decided their customers needed skegs, Detroit had pondered the idea.  Shown in 1955, Ford’s La Tosca (named apparently after Giacomo Puccini’s (1858–1924) three act opera Tosca (1900) although the intended connection seems to have been a general sense of the “emotional and dramatic” rather than the fate of the doomed protagonist) was unusual in that it appeared not as a full-scale “concept car” but in the form of a ⅜ scale model, used to demonstrate the possibilities offered by a remote-controlled chassis, directed through the medium of radio waves.  To achieve this, rather than build custom components (as the Pentagon would have done), Ford’s engineers dipped into the corporate parts bin and wired together the regulator and relay from a power window apparatus, the electric motor used to lower a convertible’s soft-top, a power seat mechanism and a standard, 12 volt car battery.  The system worked flawlessly and, depending on the topography, La Tosca could remotely be controlled at distances greater than a mile (1.6 km).  According to Ford records, the project began simply as an “…internal exercise to show students in the Advanced Studio how hard it was, even for professional designers, to design a car” but so long did the model take to complete (the complex curves and canted structures challenging to render in what was then the still novel fibreglass) that “mission creep” intruded, thus the radio-controlled chassis.

1954 Lincoln Futura (1954) and Ford Mystere (1955).  In Detroit, these were at the time typical of what was authorized to be built as "concept cars", machines destined for the show circuit to gauge public reaction.  If they now seem rather wild, much of what never left the stylists' (they weren't yet "designers") sketch pads and drawing boards truly was bizarre.  

Stylistically, La Tosca was in the vein of the corporation’s other concept vehicles of the era such as the Lincoln Futura (1954) and Ford Mystere (1955), the trio reflecting the way the industry was applying motifs from missiles and jet-propelled aircraft such as Perspex bubble-tops, tubes, fins and exhaust nacelles.  Most of these proved to be brief, though memorable, fads of jet-age aesthetics although elements were easily recognizable in the 1958 Lincoln and GM of course would later take up the skegs.  The remote-control concept was ahead of its time though it did find a niche in model cars and aircraft.  In the twenty-first century, new versions of the technology are now mainstream with cranes, trucks and trains routinely operated from sometimes thousands of miles away although usually on mine-sites and other remote locations (experiments with vehicles on public roads are being undertaken).  Despite these advances, the industry regards the technology as transitional and intends as soon as practicable to remove the human (and thus costly and unreliable) element completely, re-allocating control to an entirely autonomous AI (artificial intelligence) model which, without complaint or toilet breaks, can be worked 24/7/365.

Wednesday, June 10, 2026

Toggle

Toggle (pronounced tog-uhl)

(1) A pin, bolt or rod placed transversely through a chain, an eye or loop in a rope etc, as to bind it temporarily to another chain or rope similarly treated.

(2) In various types of machinery, a toggle joint, or a device having one.

(3) An ornamental, rod-shaped button for inserting into a large buttonhole, loop or frog, used especially on sports clothes.

(4) In theatre, a wooden batten across the width of a flat, for strengthening the frame (Also called the toggle rail).

(5) In engineering and construction, a metal device for fastening a toggle rail to a frame (also called a toggle iron); a horizontal piece of wood that is placed on a door, flat, or other wooden structure, but is not on one of the edges of the structure; an appliance for transmitting force at right angles to its direction.

(6) To furnish with a toggle or to bind or fasten with a toggle.

(7) In informal use, to turn, twist, or manipulate a toggle switch; dial or turn the switch of a device (often in the form “to toggle between” alternate states).

(8) A type of switch widely used in motor vehicles until outlawed by safety legislation in the 1960s.

(9) In admiralty jargon, a wooden or metal pin, short rod, crosspiece or similar, fixed transversely in the eye of a rope or chain to be secured to any other loop, ring, or bight.

In computer operating systems and applications, an expression indicating a switch of view, contest, feed, option etc.

(11) In sky-diving, a loop of webbing or a dowel affixed to the end of the steering & brake lines of a parachute providing a means of control.

(12) In whaling, as toggling harpoon, a pre-modern (believed to date from circa 5300 BC) harvesting tool used to impale a whale when thrown.

1769: The origin of toggle is murky and the best guess of most etymologists is it was in some way linked with "tug".  In the sense of a "pin passed through the eye of a rope, strap, or bolt to hold it in place" the origin is believed to be nautical (though not necessarily from the Royal Navy) thus the speculation that it’s a frequentative form of “tug” or “to tug” (in the sense of “to pull”), the evolution influenced by regional (or class-defined) pronunciations similar to tog.  The wall fastener was first sold in 1934 although the toggle bolt had been in use since 1994.  The term “toggle switch” was first used in 1938 although such devices had long been in use in the electrical industry and they were widely used in motor vehicles until outlawed by safety legislation in the 1960s.  In computing, toggle was first documented in 1979 when it referred to a keyboard combination which alternates the function between on & off (in the sense of switching between functions or states as opposed to on & off in the conventional sense).  The verb toggle dated from 1836 in the sense of “make secure with a toggle” and was a direct development from the noun.  In computing, the toggle function (“to toggle back and forth between different actions") was first described in 1982 when documenting the embryonic implementations of multi-tasking (then TSRs (terminate & stay resident programs).  Use of the mysterious togglability (the quality of being togglable) seems to be restricted to computer OSs (operating systems) to distinguish between that which can be switched between and that which is a stand-alone function which must separately be loaded & terminated.

The noun toggery (clothing; a clothing shop) is unrelated and was from tog.  It described (in slang), capes, cloaks & coats and (in New Zealand & Australia), swimwear (as a clipping of "swimming togs").  The origin of tog as various garments was as a shortened form of the earlier togemans & togeman (cloak, loose coat), from the Middle English tog, toge & togue, from the Old French togue, from the Latin toga (cloak, mantle).  Togeman(s) was criminal class cant for "cloak or coat" and in the shortened form "tog" it had spread to general use, by the early eighteenth century meaning "coat" and that also underwent mission keep, coming to be used generally of "clothing".  As a verb tog (as both "tog" & "tog up") emerged very quickly.  The special use of tog in fluid dynamics was as a unit of thermal resistance, being ten times the temperature difference (in °C) between the two surfaces of a material when the flow of heat is equal to one watt per m2.  The discipline in the 1940s appropriated the word from its commercial use as a material used in the thermal insulation of clothing.  Tog was also (as a clipping), slang for "a photographer".  Toggle is a noun & verb, toggled & toggling are verbs, toggler, toggery & togglability are nouns and togglable is an adjective; the noun plural is toggles.

The Jaguar E-Type (XKE) and the toggle switch

1964 Jaguar E-Type S1 OTS (Open Two Seater, as the factory at the time described the roadster body-style.

Jaguar’s E-Type (sometimes in North America (NA) informally called XK-E or XKE) deputed in 1961 at the now defunct Geneva Motor Show and it created quite a stir, at once recognized as one of the more seductive shapes ever rendered in metal, a view with which many today agree still.  The impact it made is undisputed but in industry folklore what is contested is whether Enzo Ferrari (1898-1988), attending the show, called it “the most beautiful car in the world”.  The origin of the tale is a recollection by Norman Dewis (1920–2019) who between 1952-1985 was a Jaguar test driver, the website Hemmings reporting him saying of that moment in Geneva: “I always remember Enzo Ferrari coming up to me.  He walked around the car. He said, ‘Norman, it’s the most beautiful car I’ve ever seen.  But there is one mistake on the car.  It hasn’t got a Ferrari badge.’’

1966 Jaguar E-Type OTS.  The cockpit of the "toggle switch E-Types" was one of the classic looks of the analogue era,  Unlike the Jaguar saloons in production at the time, from the start, the E-Type's dashboard had a padded top-rail.    

Il Commendatore seems never to have confirmed or denied expressing the sentiment and there’s no mention of it in Le mie gioie terribili (published in English as “My terrible joys: the Enzo Ferrari memoirs” (“My Terrible Joys” must be one of the finest titles for a memoir)).  So, in the absence of a denial the story stands and the E-Type clearly made an impression because after concluding the sleek shape was likely to confer great aerodynamic advantage, signor Ferrari returned to Modena and ordered the development of the 250 GTO, the three dozen-odd built now among the highest-priced collectables.  It’s not unknown for a statement of perhaps dubious provenance to gain an aura of authenticity if the subject decides it reflects well on them.  In the 1961 Australian general election, as the counting concluded, the government and opposition had won equal numbers with a single seat still to be called; on that one seat rested the fate of the election.  That one seat was held by the conservative Jim Killen (1925–2007) and ultimately he prevailed, ironically because of the “leakage” of a handful of preferences from the Communist Party candidate.  Elated, Killen told the press he’d received a congratulatory phone call from Robert Menzies (1894–1978; prime-minister of Australia 1939-1941 & 1949-1966) who’d said “Killen, you’re magnificent”.  The quip had come from Killen’s imagination and later, ruefully, he would reveal that at the first post-election meeting of Liberal Party members, Menzies “didn’t even offer me a drink.”  Still, Menzies never disowned the comment and one of his press secretaries confirmed he’d been happy for it circulate.

1961 Jaguar E-Type S1 roadster with toggle switches and aluminum trim panels.

Ergonomically, while an aesthetic delight, the layout was not wholly successful though toggle switches are thought more sexy than the later rockers (although, sardonically, in the E-Type community they are sometimes described a "suicide switches") which were adopted to comply with US safety regulations.  There are two different stamping patterns for the aluminum trim pieces and the one used on the very early cars is much prized; it has never been available as a re-production.  In 1963, as a running change (the factory bulletin indicating it was done to reduce glare), the panel's covering was changed to black vinyl.  The use of aluminum facia plates in a Jaguar was untypical and the designers later recalled it was done just to provide that "race car look" rather as some of today's manufacturers and tuning houses will use carbon fibre (real and fake).  The factory certainly was aware of the significance of the ambiance in cockpit design.  The earlier XK120 (1948-1954) had been available as a FCH (fixed head coupé), DHC (drop head coupé (ie a cabriolet)) and OTS but while the first two received the traditional burl walnut veneer, the "sportier" OTS's facia was covered in leather & leathercloth.  The latter was thought a more modern look which increasingly was used on the successor XK140 (1954-1957) & XK150 (1957-1961) with only the saloons using timber exclusively (which remained an option for the XK150).


Custom timber veneer fittings by Madera Concepts for Jaguar E-type in burl walnut (left) and Carpathian elm (right). 

Unlike the XK150, the timber fittings were never a factory option but some owners found the look irresistible and commissioned specialists to create the pieces.  Although the total area is not large, some disassembly and reassembly is required and with a few curves around which the veneer must be made to curl, it's a job which demands expertise.  The fine craftsmen at Madera Concepts in California report having done sets in both burled walnut and Carpathian elm, the results looking exactly as one imagines the factory might have produced had there ever been a Daimler version of the E-Type.  Of course, however much those commissioning the work might be delighted, the originality police are unlikely much to be impressed.  Views change and by 1985 timber had re-appeared in the cockpit of the E-Type’s nominal replacement (the XJ-S (1975-1996 and in 1991 named XJS during Jaguar's time as subsidiary of Ford) so walnut in the one-off “notchback” Daimler XJ-S prototype was not a novelty.

Erected soft-top on 1969 E-Type S2.

Jaguar devoted time and resources to testing the E-Type but one thing which slipped through the pre-production process (as well what must have been indifference to the glare from the dashboard) was a buffeting the OTS's fabric soft-top suffered at certain speeds.  It seems an obvious thing not to notice but, like the HST's (Hubble Space Telescope) mis-shaped mirror, it was just one of those things.  With the E-Type's release date locked-in, it was too late to redesign the components and it was a hint at the machine's intrinsic unsuitability for mass-production.  The factory had not expected demand to exist in anything close to what instantly emerged (they'd expected to sell at most a few thousand but not some 72,000 over 14 years; the world was however seduced and to this day the E-Type remains the definitive Jaguar).  The consensus among the cognoscenti seems to be if Jaguar had anticipated what a huge seller the E-Type would become they might have (1) devoted a few more months to the development and (2) on the production line spent maybe another £40 per car, meaning many of the E-Type's inherent problems might have been solved and adding £40 to the price would likely not much have affected demand.    

The fix.

Jaguar's Q&D (quick and dirty) solution for the buffeting was to weigh-down the affected area with a chain of lead-shot, sewed into the fabric in effectively the same way weighted hems are used in fashion.  Just over a half inch (14 mm) in diameter, the lead-shot bag was wrapped in a sisal cord with two 12 inch (300 mm) draw-cords to permit it easily to be pulled through the pocket in the top.  It was such a rush-job Jaguar never allocated a part-number and it’s only ever been part of hood cloth assembly (#BD20582 for the Series 1; 159.854 for the Series 2).  Both the S1 (1961-1968) and S2 (1968-1971) E-Types had the lead-shot bag, even though the soft-top’s frame was re-designed for the later cars (the S1 with three bows, the S2 two and the clamps securing the mechanism to the windscreen header rail were strengthened) and for the S2, the size of the shot-bag was reduced slightly to accommodate a change in placement, now beneath the centre strap between the bows.  Interestingly, despite presumably having at least slightly different aerodynamic properties, there seems to have been no difference in the buffeting suffered by the early cars with mohair fabric and the later which used Everflex (a tough, high quality synthetic used by Rolls-Royce during it's unfortunate "vinyl roof phase" in the 1970s (Rolls-Royce never used the word "vinyl", always insisting it was "an Evereflex covering").  For the S3 E-Type (1971-1974), the soft-top was again re-designed, this time in a way which rendered the lead-shot chains unnecessary.  
 
On the E-Type, the toggle switches were fitted only to the S1 & S1.25 cars built between 1961-1967 and they're admired both for the "vintage" appearance and their delightful tactility, the centrally-located array controlling functions such as lighting and the windscreen wipers.  Even by the slight standards of 1960s ergonomics the arrangement wasn’t ideal but, sitting beneath the gauges, it was an elegant and impressive layout the factory would retain for more than a decade, the E-type using the arrangement until production ended in 1974 and it endured on the low-volume Daimler DS420 limousine until 1992.  However, while the layout for a while survived, the toggle switches did not, the hard-edged protuberances deemed dangerous by the US NHSB (National Highway Safety Bureau (which in 1970 became the NHTSA (National Highway Traffic Safety Administration) under the newly created DOT (Department of Transportation), established by an act of Congress on 15 October, 1966 and beginning operation on 1 April, 1967) which, since the publication of Ralph Nader’s (b 1934) book Unsafe at any Speed (1965) had begun to write legislation which stipulated standards for automobile safety, this in parallel with the growing body of law designed to reduce toxic exhaust emissions.  The world into which the E-Type had been born was in its twilight.

1973 Jaguar E-Type S3 roadster with rocker switches.

On the later roadsters, the far-right rocker switch was un-labeled because it was functional only on the coupés, activating the rear-window demister; on the XJ sedans (which used the same switch apparatus), it swapped the flow between the dual gas (petrol) tanks.  When the S2 XJ was released in 1973, the whole dashboard was revised, greatly improving the ergonomics but lacking the visual appeal of a look dating from 1959 when the Mark II saloon (1959-1969) was released although the most extravagant implemental was on the Mark X (1961-1966) which used a full width assembly in timber veneer.  While impressive, airbags were decades away from mass use and seatbelts were uncommon so when the model was revised and released as the 420G (1966-1970), the top rail received a padded vinyl covering (with a central clock).  It didn't look as good but may have reduced the severity of a few head injuries.

In 1968, the new wave of legislation came mostly from the DOT so applied almost exclusively to vehicles sold in the US but such was the importance of that market it made little sense for Jaguar to continue to produce a separate line with toggle switches for sale in the rest of the word (RoW) so the decision was taken to standardize on the flatter rocker switches with their safer, rounded edges.  At much the same time, other changes were made to ensure the E-Type on sale in 1968 would conform also to other new rules, the most obvious being the replacement of the lovely covered headlights, replaced by units in a scalloped housing, mounted slightly higher (there was also a minimum headlight-height stipulation).  Given the extent of change, it was decided to designate the updated cars as the S2 (Series 2).  Despite the perceptions of some (fuelled by internet posts and re-posts), by 1967, Jaguar, while not a mass-production operation along the lines of a computerized Detroit assembly line, had long since ceased to be a cottage industry and as a change was made in a model’s specification, except for specified batches, it was applied to all production after a certain date.  Although the factory’s records document this, urban myths continue to circulate, stimulated by so-called “unicorns” such as the handful of 3.8 litre Mark 2 saloons built after 1967 when the line was rationalized (as the 240 & 340) and restricted to the 2.4 & 3.4 litre XK-Six; those 3.8s were official “special orders” and not ad-hoc aberrations.  However, nothing in the era has resulted in as much misinformation as the specification of what came (unofficially) to be called the S1.25 & S1.5 E-Types, the most common myth being that before S2 production began, some cars left the factory with a sometimes unpredictable mix of S1 & S2 parts, this haphazardness accounted for by the expedient of “using up stock”.  In the industry, (even in computerized Detroit) the practice was not unknown but there’s no evidence of the practice among 1967 E-Types.  What seems especially to attract speculation is the phenomenon of “overlap”, a word describing a Jaguar found to include some “later” or “earlier” features than the build date and VIN (vehicle identification number) suggest should be fitted.  It's part of the charm of the breed and was usually the result of the recorded “build date” reflecting when a car passed the final quality control checks; apparent discrepancies did happen if a car with an earlier chassis number had been returned for rectification of some fault, thus picking up what appears to be an “out-of-sequence” date.


1967 Jaguar E-Type S1 OTS (left) and 1976 Jensen Interceptor III (J Series) Convertible (right).

With the end of E-Type production, no Jaguar subsequently used the classic dashboard layout although it did endure on the Daimler DS40 limousine, built on the platform of the old Mark X.  Although over 4,000 DS420s (including two built by Vanden Plas as landaulets) were built (plus an additional 900-odd supplied as “commercial chassis” to coachbuilders who would fabricate custom aft-sections, configured mostly as hearses), the model was never sold in the US, the costs of the engineering required to make it compliant with the NHTSA’s ever-evolving rules to high to make the low-volume model viable.  Jensen however adopted the layout for the Interceptor (1966-1976) when in 1969 the Mark II was released although it too was compelled to replace the toggle switches with rockers and they went above and beyond the regulator’s dictates, installing them in a recessed, padded housing.  Even on the Interceptor Mark III (1971-1976), although there were a number of detail changes to the dashboard over the life of the model (there were “G”, “H” & ”J” series, “I” skipped to avoid confusion with the numeric “1” (one), a convention followed by many including bra manufacturers and Boeing when updating the B-52H Stratofortress), the Jaguaresque layout (an array of gauges in the centre with a line of toggles below) remained to the end.  Again, the ergonomics were not state of the art but, like the Jaguars, the Interceptor had other charms.


2006 Spyker C8 Laviolette Widebody: Dashboard layout with four-spoke “propeller” steering wheel (left) and toggle switches with nerf-bars (right).

Pleasingly, although thought extinct on the road, the toggle switches did make a comeback with several small-scale manufacturers unable to resist the look.  The way that look was kept while remaining compliant with the rules was to add rounded nerf-bars on each side of the switch, a trick borrowed from racing cars where the fittings were used to ensure a driver didn’t inadvertently “flick to wrong one”, always a risk because of the thick gloves usually worn in competition.  Spyker, a boutique operation from the Netherlands, began operation in 1999, the name coming from a Dutch coach-builder that between 1880-1926 would branch out from horse-drawn carriages to automobiles and even aircraft.  Since 2000, between various local difficulties (including bouts of bankruptcy), Spyker has produced a number of high-performance models and while the mechanical specification has always been impressive, what has also drawn attention are the exquisitely finished interiors, the intricacies (typified by the nerf-bars around the toggle switches) a delight for those who fetishize such things.  Unfortunately the four-spoke “propeller” steering wheel (a style last seen in volume on the Jaguar XK150 (1957-1961) was eventually judged just too potentially lethal to be granted an exemption from compliance and was replaced with something more accommodating from the Lamborghini parts-bin.


Engineering as art: Gear-shift mechanism, 2006 Spyker C8 Laviolette Widebody (left) and 2007 Spyker C8 Laviolette Targa with, softer, gentler steering wheel (right).

What did however survive was the wonderfully crafted shift mechanism for the rear-mounted ZF transaxle and although the exposed shafts of stainless steel might seem an affectation, it's pure functionalism; being a direct mechanical linkage, they provide precise gear-shifting, always a challenge with such a layout (the Porsche 914 (1969-1976) community coined broomstick in a jar of mayonnaise” to describe the experience of the earlier "tail-shift" models, the post 1972 "side-shift" build a great improvement from "bad" the "satisfactory").  The shape of the shifter’s knob reflects the modern practice, dating from analysed data derived in the late 1960s from the Swedish government's mandatory post mortems (autopsies) of road-accident fatalities (under Swedish law, such corpses were for 48 hours the property of the state).  What the pathologists' findings revealed was lives could be saved if engineers could devise as a shift lever handle too large to penetrate the eye socket.  One of the first knobs to reflect this design imperative appeared in 1971 on the Mercedes-Benz 350 SL (R107, 1971-1989) although, there being an element of the macabre in the research, the origin of the shape wasn't something the factory choose widely to publicize.  The small innovation was a classic example of what's called “passive safety”.  Spyker’s engineering is thorough and although pure-steel from transaxle to knob, heat-soak along the shaft is said to be minor so there was no need to resort to a timber knob as Porsche did in the late 1960s on some of its race cars; to this day the urban myth persists that Porsche used balsawood to reduce weight by a few grams.  

The pure lines of the S1 E-Type (top) were diluted, front and rear, by the need to comply with US safety legislation, the later S2's head & taillights more clunky.  The collector market slang for the later headlight treatment is "sugar scoop".

The process by which S1 evolved into S2 was in a sense transitional which is why the designations S1.25 & S1.5 became accepted in the jargon.  Not used by the factory, the terms are said to have been “invented” by JCNA (Jaguar Clubs of North America), the S1.25 run beginning on 11 January 1967 after production resumed following the Christmas holiday while the first 1.5s were built mid-year.  Although within the collector community much is made of the defining differences between the “pure” S1 and the “transitional” S1.25 & S1.5, that “purity” is nuanced because like many others, the E-Type was subject to constant product development with changes appearing from time to time and "S1" is a concept rather than a static specification.  Early in the model run, there were some obvious changes such as (1) the modification to the “flat floors” to provide more leg-room, (2) the integration of the hood (bonnet) louvers into the pressing, (3) the external hood (really a “clamshell”) release (there were two types) being replaced by an internal mechanism, (4) internal trim changes including the dashboard materials, console and seats, (5) the replacement of the Moss gearbox with an all-synchromesh unit and (6) the 4.2 litre engine replacing the original 3.8.  Beyond those well-known landmarks, between 1965 and early 1967 there was also a wealth of barely detectable (except to experts of which there are quite a few) cosmetic changes and mechanical updates including: (1) the glass windshield washer bottle being replaced by a plastic container (March 1965), (2) the addition of an alternator shield (October 1965), (3) an enclosed brake and clutch pedal box (October 1965), (4) a hazard warning (4-way) flasher included for US market cars (November 1965), (5) sun-visors added to the OTS (February 1966), (6) instrument lighting changed from blue to green (March 1966), (7) the rubber boot at the base of the gear lever being replaced by a black Ambla gaiter (October 1966), (8) detail changes to the gearbox cover and prop shift tunnel finisher (October 1966), (9) the material used for the under-dash panels switched from Rexine-skinned aluminum to fiberboard (October 1966) and (10) a Girling clutch master cylinder replaced the Dunlop unit (December 1966).  One quirky part of the evolution was that although, from their introduction in 1966, the 2+2 cars included a door for the glove-box, one wasn't fitted to the OTS & FHC until  the S1.5 run.

Jaguar E-Type: S1 with covered headlight (left), S1.25 with early "sugar scoop" (centre) and S2 with later "sugar scoop" (right). 

After the lovely headlight covers were legislated to extinction by the DOT bureaucrats, the replacement (uncovered) apparatus came to be called the “sugar scoop”, a term earlier used for the Volkswagens & Porsches sold in the NA market which had to be fitted with sealed-beam headlights because of protectionist rules designed for the benefit of US manufacturers.  The use of “sugar scoop” for the E-Type was appropriate because the visual link with the utensil was much more obvious than on the Volkswagens & Porsches.  There were three different designs of sugar scoops, one for the 1.25 & 1.5, one for the S2 and one for the S3.

Straight six by Emily Abay (b 1986).

UUA 368 is an Australian-registered 1968 (S2) Jaguar E-Type available for hire at a daily rate of Aus$990.00 (including 200 km (124 miles)); the hire company dubbed her (the car) "Penelope" (unfortunately, the company does not expand on how the names were chosen).  Not all jurisdictions allow the registration plate to be painted on the hood, a practice made famous in 1961 by photographs of 9600 HP, a pre-production E-Type used as one of the factory’s original press-cars.  It was 9600 HP which The Autocar magazine took to Belgium, successfully verifying the then astonishing claim of a top speed of 150 mph (241 km/h) although, years later, it was revealed there had been a few subtle tweaks and an E-Type off the showroom floor wouldn’t quite have hit the magic number, no matter how long and straight the road.  Painting the registration on the hood avoided disfiguring the lovely lines with a plate (no flat surfaces on the front of an E-Type) and many followed the lead, some places allowing it, some not.  A S2 E-Type, UUA 368 has the one of the more elevated of the sugar scoops but, being delivered in Australia, it retains the triple SU carburettors by then denied to customers in NA so response will be lively, especially above 100 mph (160 km/h).

A US market 1977 Porsche 911 (1964-1989), fitted with the front bumper assembly of a later 911 (964 (1989-1994)):  The original “sugar scoops” are seen on the left and the replacement Hella H4 lights are to the right (in RoW cars both H2 & H4 units were fitted).  The (non-figurative) sugar scoop (centre) is Japanese, circa 1970s.  Sugar scoops are used to scoop sugar from a “sugar scuttle” whereas if one’s sugar is in a “sugar bowl”, a “sugar spoon” is used.  The difference between a “sugar spoon” and a “tea spoon” is the former has a deeper and usually more rounded bowl and most are supplied as part of a “tea set” or “tea service”, often with the same decorative elements.

1966 Jaguar E-Type FHC: undeniably, the headlight covers were a sexy shape.

Despite that myriad of modifications, all E-Types prior to the S2 are S1s but the running changes can be of significance to restorers if the object is exactly to emulate the state in which a vehicle rolled off the production line; in events such as a concours d'élegancé, judges can deduct points for even minor infractions.  Things became more distinct when on 11 January 1967 the first E-Type destined for the US market was built without the covered headlights and this marked the beginning of the run of what would come to be known as the 1.25 although it wouldn’t be until mid-year the open headlights became a universal fitting.  Unlike some cars where changes can be determined from the sequential VINs, the only way accurately to determine whether a 1967 E-Type built between January and July was fitted with covered or uncovered headlights work out the market for which it was built, those for NA using the uncovered fittings.  That's because an analysis of successive VINs will reveal on a given day there might have been a mix of cars going down the production line with different headlight assemblies.  Curiously, there were some 1968 E-Types built for Canada which included the triple SUs and while these included the interior changes mandated by US federal law, the door mirror on the driver’s side wasn't fitted and the tail and side lights were a different specification.  From 1969, Canada aligned its regulations with those of the US so from that point on, the NA specification was standardized but the history of S1 production does illustrate why things be so challenging for restorers wishing exactly to replicate what the factory did.

Between August-October 1967, the 1.5 run was built with twin Zenith-Stromberg carburetors (in a specification designed to reduce emissions) replacing the triple SUs (on NA cars), the substitution of ribbed camshaft covers, a higher mounting of the headlights (to meet minimum height requirements) and the adoption of rocker switches; at this point, the teardrop tail lights remained, the other most obvious external marker of the S2 being the chunky lights below the rear bumper bar.  In the usual manner, updates continued, such as twin cooling fans (a good idea) and 1000-odd run of the so-called "R2" cars, almost all of which were registered as 1971 models although many left the factory in 1970.  The R2 S2 E-Types gained a pair of "leaper" badges on the flanks, just behind the front wheel arches.  Unlike the steel leapers centrally mounted on the hoods of other models, the badges required two part numbers, one each for the left & right.  It seemed a pointless addition and just an addition of more clutter, as they were on the S1 (1968-1973) & S2 (1973-1979) XJs.

1971 S2 Jaguar E-Type (centre) from the "R2" run of 1000-odd with the leaper badges on the flanks.

So much did the clutter created by bigger bumpers, protuberant headlight assemblies, badges and side-marker lights detract from the lovely, sleek lines of the Series 1 cars, bolting a luggage rack to the trunk (boot) probably seemed no longer the disfigurement it would once have been.  The left-hand (left) and right-hand (right) badges, being directional, were different part numbers (BD35865 & BD35866 respectively) and those used on E-Types were silver on black.  There were also variants used on the XJs which were gold on black and some had the leaping feline at a slight slope, both matters of note for those wishing to restore to the exacting "factory original" standard.  

So, without a flow chart, it can be hard to follow and, because of some overlaps in the production process, the S1-to-S1.25-to-S1.5 transition wasn’t entirely lineal but none of this is mysterious because the JFSBs have documented and explained these “inconsistencies”.  Still, there are enough quirks to enrage some and delight others.  For example, there were a certain 32 specific NA market vehicles fitted with the headlight covers which were built with serial numbers later than the first of the open headlight cars.  Not all E-Types built for NA in 1967 thus had the open headlights and a not insignificant number of those 1.25 spec vehicles have been retro-fitted with the covers.  Such is the appeal of the covered headlights that although the E-Type market is monitored by the originality police (the “matching numbers” crowd with their extraordinary knowledge of things like “correct” hose clamps or screw heads), there is some untypical forgiveness for “back-dating” headlights to the sleeker look and they're not unknown even on the later, and much different, S3 cars.  Also, although US market S2 cars were from very early in the build fitted with the side-marker light assemblies, it wasn't until late in 1969 bulbs and wiring were fitted (the relevant law taking effect on 1 January 1970); prior to that they'd functioned merely as “side-reflectors”, meaning latter day purchasers need to inspect non-illuminating examples to work out if they're defective or just reflectors.  Opinion seems divided on the matter of fitting the triple SU carburetor assembly to cars delivered with the twin Zenith-Strombergs and many have been converted.  It's not difficult to make a 1.25 visually indistinguishable from a S1 and to do the same to a 1.5 is a matter just of more parts, time and money, the ethics of both ventures being transparency; once modifications are disclosed to a potential purchaser, it's up to them to decide if originality is critical.  Armed with lists of VINs, JFSBs and encyclopaedic knowledge, the JCNA's originality police will not be fooled. 

The lure of the headlight covers: 1973 E-Type S3 with headlight covers subsequently added (left) and with the standard "sugar scoops" (left).

These are US market cars with the additional "dagmars" appended to the bumperettes.  Even by 1973, thin whitewall tyres were still a popular option on US Jaguars and they remained available until the last were sold in 1975 but the wide whitewalls often supplied in the early 1960s had long fallen from favor.  Although the judges in the JCNA confederation are usually uncompromising, they make a rare exception in not deducting points from late-build E-Types (the so-called 1.25 & 1.5) which have been fitted with the headlight covers.  The covers never appeared on the S3 E-Types but their unexpected presence clearly doesn't dissuade buyers because the S3 pictured above (left) in February, 2021 sold at auction for US$230,000.  It was an exceptionally low-mileage example (8000-odd miles (13,000 km)) but even given that it represented an impressive premium for what was a "modified" vehicle.  The S3 cars also had a number of year-to-year variations but compared with the constantly evolving S1 the specification tended to the static.  One quirk was that as well as offering the new 5.3 litre (326 cubic inch) V12, it had been intended also to make available a version with the 4.2 litre XK-Six with brochures and promotional materials printed before the decision was taken only to fit the V12.  However, four six cylinder pre-production prototypes were built and one is known to survive; curiously, despite the rarity (indeed, it may genuinely be a unique, historic E-Type footnote), at auction it achieved a price little different from a 1971 V12 model in equivalent condition.

Jaguar E-Type production breakdown, 1961-1974.  

While the loss of the toggle switches, teardrop taillights and headlight covers caused many to lament that the world was shifting from elegance ungainliness, some other changes also induced pangs of regret.  The switch from triple to dual carburetors was necessitated by the emission control regulations; the claimed HP (horsepower) dropped from 265 to 246 and while not many took the original rating too seriously, there was a drop in performance, especially in the upper speed ranges.  One often less noticed change mandated by the DOT was the replacement of the “eared” knock-off hubs for the wire wheels (the E-Types only ever using a two-eared version although third-party items with three ears are available) with a more “pedestrian friendly” type which, bewilderingly, are now referred to as the “non-eared”, “curly”, “octagonal”, “smooth”, “federal” “safety” and “continental” knock offs.  Take your pick.  Buyers could also take their pick of whether their “improved” wire wheels (now incorporating a forged centre hub) were painted in matte silver or chromed although the JFSB did caution that because of the altered configuration of the spokes, the wheels were not interchangeable with the earlier type except as a complete set (ie five per car).  Available from 1 January, 1968 (the effective date for many of DOT’s new rules), this was Jaguar’s last update of the wire wheels which, in a variety of forms, the company had been using since being founded in 1922 as the Swallow Sidecar Company.  Never offered on the biggest and heaviest of the post-war cars (the Mark VII, VIII, IX and X/420G) or the new XJ range, they were last used on the “overlap” Daimler saloons (250 & Sovereign) in 1969 although they remained an option for the E-Type until the last was built in 1974.  

Wire wheels and associated components for the E-Type by Martin Robey; note the two designs of spinner saver (eared & non-eared).

Although a handful of small-scale producers (the last hold-outs from the days of cottage industries) continued to offer wire wheels, their final appearance on the option lists of the UK industry’s volume models came in 1980 when the last of MG's Midgets and MGBs were sold.  The term "knock-off" sometimes confuses because in slang it can mean a "fake or reproduction item" but in the context of wheels the original meaning described the centre-locking hubs (known also as "spinners") which were tightened or loosened by being "knocked" on the ears with the (often lead-faced) mallet (sometimes described as a hammer) included in the tool kit.  In racing, pit crews would strike the ears directly but tool-kits usually included a (typically timber) "spinner saver" to minimise damage to both hub and mallet; when non-eared hubs appeared, the shape of the spinner saver was also changed.  So the term can confuse: The famous Italian manufacturer Borrani produced many wheels with centre-lock hubs so the phrase "Borrani knock-offs" is standard industry jargon and by convention "knock off Borranis" is used of replica locking nuts (also called "spinners"), the presence of which can be a concern because they might be of lower quality, not manufactured to the safety and performance standards of the genuine product.  

Norway’s Motorhistorisk Klubb Drammen (Historic Car Club of Drammen) from Buskerud county reported on an exhibition hosted on 2 July, 2014 by the Norsk motorhistorisk museu (Norwegian Motor Historic Museum) in the village of Brund, the event honoring Lindsay Lohan’s (b 1986) 28th birthday.  The red S2 Jaguar E-Type had received a recent restoration but a detailed examination would have to be undertaken to determine the degree to which it remains in its original specification.  Given the visible clues and its presence in Norway, this may have been a RoW (which the triple SU carburetors would suggest though they are a popular swap on twin-carb models) car but there’s a lively two-way trans-Atlantic trade in E-Types (many now expertly restored in Poland) so it may originally have been sold in the US or Canada.

The “Shaguar” used in the three Austin Powers movies (1997, 1999 & 2002).

The Shaguar was a 1967 S1.5 E-Type which featured the combination of teardrop taillights, twin carburetors, sugar scoop headlights, a glove-box door, rocker switches and, being right-hand drive (RHD), it wasn't built for NA.  When the auction house published the photographs, the vibrant on-line originality police did their analysis and concluded it was built in December 1967 as a 1968 model but was in far from original condition (beyond the obvious paint and Shaguar badge).  The dashboard included the earlier manual choke and the heater and vent controls appeared to be missing and while the side & turn lights were NA specification, the taillights were those used on RoW cars.  The tachometer was the one one fitted to S2 models and it was suspected this may have been swapped when the later, non-original engine with the twin Zenith-Stromberg carburetors was installed.  Over the decades, many E-Types have for one reason and another drifted far from their original build and usually this limits their appeal to collectors but at Mecum Auctions in January 2025, the Shaguar realized US$880,000 (including 10% buyers premium), several times the typical sale price of a non-original S1.5 RoW E-Type in the same condition, its history as a cinema prop clearly an attraction.