Pobjoy R

'R'
Preserved Pobjoy R at the Shuttleworth Collection
Type	Piston radial aero-engine
Manufacturer	Pobjoy Airmotors
First run	1926
Major applications	BA Swallow Comper Swift

The Pobjoy R was a British seven-cylinder, air-cooled, aircraft engine designed and built by Pobjoy Airmotors. Introduced in 1926 it was a popular engine for ultralight and small aircraft in the 1930s. A notable feature of the Pobjoy R was the propeller reduction gear which allowed the small engine to operate at more desirable higher speeds.

A preserved Pobjoy R engine is on display at the Shuttleworth Collection, Old Warden, Bedfordshire. Two Pobjoy R engines, one installed on the remains of R222 (LV-FBA) Comper swift will be soon on display at the National Aviation Museum (Argentina-Moron-Buenos Aires Province)

Data from Lumsden.

...
Wikipedia