The Napier Culverin was a licensed built version of the Junkers Jumo 204 six-cylinder vertically opposed liquid-cooled diesel aircraft engine built by D. Napier & Son. The name is derived from the French word, culverin, for an early cannon or musket. First flown in 1938, the engine went into limited production, with testing carried out on a Blackburn Iris V biplane flying-boat aircraft and Fairey IIIF biplane.

Design

The six cylinders were arranged vertically. Two crankshafts were located at the top and bottom of the engine and coupled together by gears. The inlet and exhaust ports were controlled by the pistons, as in a petrol-fuelled two-stroke engine.

Napier Culverin

Specifications (Culverin)

Napier Culverin

See also

Comparable engines

Junkers Jumo 205

Related lists

List of aircraft engines

References

Notes

Bibliography

Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. .

Napier Culverin

External links

Photo of a Napier Culverin at Napierheritage.org

Culverin

Two-stroke diesel engines

Aircraft diesel engines

Opposed piston engines

1930s aircraft piston engines

Diesel engines by model

Diesel engines by maker