Bristol Jupiter
The Bristol Jupiter is a British nine-cylinder single-row piston radial engine that was built by the Bristol Aeroplane Company. Originally designed late in World War I and known as the Cosmos Jupiter, a lengthy series of upgrades and developments turned it into one of the finest engines of its era.
| Jupiter | |
|---|---|
| Bristol Jupiter on display at the Royal Air Force Museum London | |
| Type | Piston aircraft engine |
| Manufacturer | Bristol Aeroplane Company |
| Designer | Roy Fedden |
| First run | 29 October 1918 |
| Major applications | Bristol Bulldog Gloster Gamecock |
| Number built | >7,100 |
| Developed into | Bristol Mercury |
The Jupiter was widely used on many aircraft designs during the 1920s and 1930s. Thousands of Jupiters of all versions were produced, both by Bristol and abroad under licence.
A turbo-supercharged version of the Jupiter known as the Orion suffered development problems and only a small number were produced. The "Orion" name was later re-used by Bristol for an unrelated turboprop engine.
The Bristol Jupiter was licensed by the Soviet Union as the Shvetsov M-22.