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Group Description

A place to come and see and also share your pictures of Trojan vehicles.

Trojan was a British automobile manufacturer. Cars with the Trojan marque were made from 1914 and 1974.

Early history
The company was founded by Leslie Hayward Hounsfield (1877–1957) who went into business as a general engineer in a small workshop called the Polygon Engineering Works in Clapham, South London. He got the idea to make a simple, economical car that would be easy to drive and started design work in 1910.
In 1913 the prototype was ready. It had a two-stroke engine with four cylinders arranged in pairs, and each pair shared a common combustion chamber - a doubled-up version of what would later be called the "split-single" engine. The pistons in each pair drove the crankshaft together as they were coupled to it by a V-shaped connecting rod. For this arrangement to work, it is necessary for the connecting rod to flex slightly, which goes completely against normal practice. The claim was that each engine had only seven moving parts, four pistons, two connecting rods and a crankshaft. This was connected to a two-speed epicyclic gearbox, to simplify gear changing, and a chain to the rear wheels. Solid tyres were used, even though these were antiquated for car use, to prevent punctures and very long springs used to give some comfort.
Before production could start war broke out and from 1914 to 1918, Trojan Ltd, as the company had become in 1914, made production tools and gauges. In 1920 the first series of six cars were made from a works in Croydon and the final production version was shown at the 1922 London Motor Show. An agreement was reached with Leyland Motors to produce the cars at their Kingston upon Thames factory where work on reconditioning ex RAF wartime trucks was running down. This arrangement would continue until 1928 when Leyland wanted factory space for truck production. During the nearly seven years of the agreement 11,000 cars and 6700 vans were made.

Additional Info

  • This group will count toward the photo's limit (60 for Pro members, 30 for free members)
  • Accepted content types: Photos, Videos, Images, Art, Screenshots
  • Accepted safety levels: Safe
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