T35
Built in 1947 and 1948, the 348cc transverse flat-twin had "Radiadraulic" front forks and torsion bar rear suspension. Finished in black and blue with ample chrome, it sported an alloy silencer below the gearbox and, unique to the T35, had Douglas cast into the rockerbox covers.
Mark III
Introduced in 1948 to replace the T35, it was offered in both Mark III De Luxe and Sports versions.
Competition Model 1949
Fitted with a rigid frame and lower compression ration (6.5 : 1) it was designed for cross-country trials. It had higher ground clearance, a raised seat, scrambler-style exhaust and knobby tyres.
Mark IV Introduced in late 1949, MkIV range consisted of the De Luxe, Sports and Competition models. The road machines had teardrop-shaped rear toolboxes, and the front mudguard was attached to the front wheel hub. Colour schemes available were the standard black, and two-tone blue.
80 Plus and 90 Plus These sporty road models joined the 1950 catalogue with tuned engines which were bench-tested - the 90 Plus had 25 bhp, the 80 Plus with slightly less. Colour scheme for the 80 was maroon, and polychromatic gold for the 90, which was offered with a racing kit which included a tachometer, lighter bodywork and a racing magneto.
Douglas 90 Plus Specifications
Engine
Transmission: 4-speed gearbox with single-plate dry clutch
Suspension
Weight: 393 lb
Mark V The Mark V appeared in 1951, replacing the Mark IV. It changed little from its predecssor, with minor changed to the front guard, and pillion footrests and tubular mufflers becoming standard equipment. Solo saddles remained standard with dual seats optional. Some models had chromed fuel tanks, but many were painted, with silver panels.
Dragonfly
Built from 1954 to 1957, the Douglas Dragonfly inherited much of its mechanical composition from earlier models. It differed with the fitting of an AC generator and just one carburettor instead of two. The frame was new, as were the Earles-style forks and bodywork. 1570 examples of the Dragonfly left the factory during its three years of production.
Douglas Vespa
Following an agreement with Piaggio, Douglas began production of Vespa scooters in 1951.
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