Starting a non-straighforward evolution, the grandmother of the German 'hump-nosed' trains was the famed Schienenzeppelin, a propeller-driven fast railcar designed by one Franz Kruckenberg. Fast diesel railcars of the time had the driver crammed into a small place in front of the noisy motor, behind a nose that was more stylish than truly aerodynamic. The Rail Zeppelin however had a long aerodynamic nose, broken at the top end by the windshield (forced by the limited window strength of the time).

The Rail Zeppelin was a dead-end, despite setting a world record of 230.2 km/h in 1931. But, with propeller removed, it served as a testbed for a less exotic, but much less well known, yet more influential work of Kruckenberg, that was named for him:

Factory photo of the brand-new SVT 137 155 a+b+c "Kruckenberg" in January 1938 - one of the very few surviving photographs of the vehicle. From an extract from W. Paetzold: Voith Turbo Transmissions 1930-1985, Vol. 2: Motor Car Drives [pdf!]

The room under the aerodynamic hood was used for the engine, with other machinery under the driver's cabin. The sole prototype achieved 215 km/h in summertime speed trials. But its axle bearings weren't up to the hardships, and the summer was that of 1939 -- and right at the outbreak of WWII, all diesel-powered fast trains were mothballed, to spare fuel for the tanks & warships... Only parts of the stored-away prototype could be salvaged by a museum in Dresden when it was scrapped in 1958. However, SVT 137 155 was the mother of the most celebrated DMUs of both Germanys.

The young West German railways (DB), after the failure (unstable running) of two light luxury DMUs (class VT 10.5), ordered a much more solid construction, class VT 11.5 (later renamed series 601). The 9 trainsets (+ spare tractor head) were for the TransEuropExpress (TEE) service, a joint project of the West European railways from 1957. Paralleling similar ill-considered ideas across the pond (see below), the concept was to compete with air traffic with fast all-first-class luxury trainsets that can pass borders easily. (Problems were, at 160 km/h these trains were still not fast enough, the luxury passenger circle not big enough, and trainsets too short for mass traffic.)

A DB 601 on a late August early morning reaches the end of the 'Slope-viaduct of Pünderich', which sits on a steep wine-growing side of the deep valley of the Mosel river. The train still sports the original stylish TEE metal letters, though the photo is from the IC era (in 1979 or 80). Photo by W. Zitz/KoLü Ksf from RailServer.de

Five 'half-trains' were also delivered to the Danish State Railways (DSB) in 1963 (series MA "Lyntog"), which had a driving trailer at the other end, but also with elevated cab, to have room for a 'walk-through' front door to link up two trains. The same year the East German DR received the first of its eight VT 18.16 (later renamed series 175, much later all-German series 675). They were kind of a prestige counter-project to DB's trains, and made an impression even across the Iron Curtain on international runs.

A four-car DR class 175 passes under the bridge of the Raisdorf-Harth local road in Austria as the Vienna-Berlin "Vindobona", 1979. Photo from Andraschek Collection/DEF

In 1970, DB also rebuilt four of its tractor heads with turbine drives (class 602), but that wasn't a first. Nor the originals.

North America

The very first US streamlined DMU, Union Pacific's M-10000 "Tin Worm" prototype from 1934, featured an elevated 'turret cab', above large (and IMO ugly) air intakes. Some later members of UP's series, copying Illinois Central's #121 "Green Diamond" or "Tobacco Worm" (all 1936), had fronts like diesel locomotives of the era, but the roof again fell off behind the cab -- another distinctive hump-nosed look. In the fifties, the locomotive of the failed Aerotrain also sported a similar cab-hump.

UP M-10005 as the first westbound "City of Denver" kicks up dust upon arrival in the name-giving city, 19/06/1936. Photo by Otto Perry from Wikipedia

The most famed North American trains with a hump on the nose were the six TurboTrains built by United Aircraft in 1967 (originally five for Canadian National and one for DoT). They were powered by turbines, which were strong yet relatively small, so a similar 'hump' with panoramic view could be placed upon them as on the SJ Y3. In North American terminology, this design was christened 'dome motor car'.

The UAC Turbo was a real forerunner of high-speed trains, even incorporating passive tilt technology, but although it still holds the US rail speed record at 274.9 km/h (170.8 mph) and the Canadian at 226.3 km/h (140.6 mph), it was a failure: the turbine technology wasn't really rail-worthy, and the Oil Crises made their high consumption a problem.

The first UAC TurboTrain on a Boston to New York run just passed Pelham station, August 1970. The train with a single middle car originally ran for New Haven RR, but in a merger mania, the latter was first bought by the giant Pennsylvania RR, then the latter united with New York Central to form Penn Central, whose livery it showcases above. Later AMTRAK would add two middle cars and buy two more sets from Canada. Photo by Martin K. OToole/RailPictures.net

Italy

Italian high-speed developers chose electric multiple units (EMUs) early on -- in fact in Mussolini's time (ETR200-ETR240 family), but due to mismanagement and corruption, projects suffered continuous delays for half a century, thus Shinkansen and TGV could steal the limelight.

Still, in 1953, the state railways FS received two series ETR300 "Settebello" seven-car luxury EMUs for (originally) 160 km/h. Electric equipment fit under the floor, but the driver's cabin was placed in a hump, to have panoramic compartments of an entirely different kind: looking forward. Later the trains were also involved in TEE traffic, and received a third twin, and in 1960 4 four-car sisters (ETR250 "Arlecchino").

A preserved "Settebello", ETR302 in Codogno, 01/02/2003. Photo by Stefano Paolini from PHOTORAIL

The Netherlands

None of the above trains lived up fully to expectations. Not so the class Plan Z/ICM "Koploper" of the Dutch state railways NS. 94 three-car EMUs (series 4000) and another 50 of the 4-car version (series 4200) were built for IC service from 1977. The driver's cabin was elevated to get around the problem of the fixed length of EMUs: two trains can be coupled with the noses opening into a gangway. (Like the second endcar of the DSB "Lyntog"-s, but also CN's Turbos.)

3-car "Koploper" 4046 coupled with 4-car sister 4234 as IC 21738 (Enschede-Rotterdam Centraal) at Moordrecht, 30/11/2006. Photo by Eddy Konijnendijk from RailFanEurope

Japan

When national railways JNR built its first super-express in 1958 (series EC20, later 151), they wanted to have good linesight for the driver at high speed (Japan has small narrow-gauge railways; a 151 set a narrow-gauge world speed record of 163 km/h in 1959) and keep loud electric equipment away from passengers -- hence it got a DB VT 11.5-like 'bonnet' front.

The series 151 not only led to the (flat-roofed) Shinkansen, but spawned a very large family of 'hump-nosed' EMUs for JNR and its private successors (DC sisters series 161, 181, 183, 189, AC sisters 481, 483, 485, 489, and their night-train versions 581, 583, later JR Hokkaido DC sister 781; and the dual-system 443 and diesel-electric hybrid 190/191 inspection trains), most of them with the newer flat fronts (more like the NS "Koploper") called 'walk-through' (though few really had front doors).

A snow-covered JR West 481-126, one of the last with bonnet front and original painting scheme, arrives in Aomori on the night of 12/02/2001. Photo from the Guest Album at BONNET-EXP

More modern descendants at JR East (the DC E351 "Super Azusa", dual-system 651 "Super Hitachi", E653, AC E751) and JR Hokkaido (789) got more stylish fronts. From 1960 the same or similar 'bonnet' and 'walk-through' fronts were also used in DMUs (old JNR series D[iesel]c[ar]80, Dc81, Dc/N183, and JR Hokkaido's newer tilting trains Dc261 "Super Soya", Dc281 "Super Hokuto", Dc283 "Super Ozora").

A JR Hokkaido series Dc283 train, one with cab above front door, starts to tilt into a curve at Niyama (between Onuma and Nanae, North of Hakodate), 23/08/2005. Photo from Train Sakura

The elevated cab behind panoramic front design (like FS "Settebello") is also widespread. JNR had some (rebuilt series 165, Dc183-1000 subseries); but from the early sixties, it was two privates that made most use of it: Nagoya Railroad (first Panorama Cars: series 7000, 7500) and Odakyu Express Railway (Romancecar series 3100 NSE, 7000 LSE, 10000 HiSE, 50000 VSE).

Brand-new Odakyu Express Railway series 50000 VSE ("VaultSuperExpress") near Kaisei (North of Odawara) on first day of service, 19/03/2005. Even the elevated cab behind the panoramic compartment was morphed into a sleek aerodynamic shape with high-speed look (resembling the German ICE-3), yet top speed of this narrow-gauge cruiser is just 130 km/h. Photo from Odakyu Photo Blog

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