Rotary engine
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The rotary engine is a type of reciprocating internal combustion engine, usually designed with an odd number of cylinders per row in a radial configuration. In most designs, the engine's crankshaft re
An 80 horsepower (60 kW) rated Le Rhône 9C, a typical rotary engine of WWI. The copper pipes carry the fuel-air mixture from the crankcase to the cylinder heads acting collectively as an intake manifold.
This Le Rhône 9C installed on a Sopwith Pup fighter aircraft at the Fleet Air Arm Museum. Note the narrowness of the mounting pedestal to the fixed crankshaft (2013), and the size of the engine
Megola motorcycle with rotary engine mounted in the front wheel
An 1897 Félix Millet motorcycle
Bentley BR2
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The Bentley B.R.2 was a nine-cylinder British rotary aircraft engine developed during the First World War by the motor car engine designer W. O. Bentley from his earlier Bentley BR.1. The BR.2 was bui
Rotary engine
…Some rotary engines had limited or difficult engine controls (see below), which could result in fuel waste. The late World War I Bentley BR2 was the largest and most powerful rotary engine; it reached a point beyond which this type of engine could not be further developed, and it was the…
B.R.2 engine on display at the RAF Museum London
Gloster Nightjar during evaluation at Farnborough in 1922
Manufacturer's plate (dated November 1917) and valve operating gear of the BR.2 engine on display at the Royal Air Force Museum Cosford