Rolls-Royce Buzzard

Buzzard
Rolls-Royce Buzzard at the National Air and Space Museum
TypePiston V12 engine
ManufacturerRolls-Royce Limited
First runJune 1928
Major applicationsBlackburn Iris Mark V
Blackburn Perth
Number built100
Developed fromRolls-Royce Kestrel
Developed intoRolls-Royce R

The Rolls-Royce Buzzard is a British piston aero engine of 36.7 litres (2,240 cubic inches) capacity that produced about 800 horsepower (600 kW). Designed and built by Rolls-Royce Limited it is a V12 engine of 6 in (150 mm) bore and 6.6 in (170 mm) stroke. Only 100 were made. A further development was the Rolls-Royce R engine. The Buzzard was developed by scaling-up the Rolls-Royce Kestrel Engine.