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
A culverin was initially an ancestor of the hand-held arquebus, but the term was later used to describe a type of medieval and Renaissance cannon. The word is derived from the antiquated "culuering" and the French (from " grass snake", follo ...
, for an early cannon or musket.
[Lumsden 2003, p.170.] 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
The Fairey Aviation Company Fairey III was a family of British reconnaissance biplanes that enjoyed a very long production and service history in both landplane and seaplane variants. First flying on 14 September 1917, examples were still in u ...
biplane.
[Lumsden 2003, p.170.]
Design
The six cylinders were arranged vertically. Two
crankshaft
A crankshaft is a mechanical component used in a reciprocating engine, piston engine to convert the reciprocating motion into rotational motion. The crankshaft is a rotating Shaft (mechanical engineering), shaft containing one or more crankpins, ...
s 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
A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a Thermodynamic power cycle, power cycle with two strokes of the piston, one up and one down, in one revolution of the crankshaft in contrast to a f ...
.
Specifications (Culverin)
See also
Comparable engines
*
Junkers Jumo 205
Related lists
*
List of aircraft engines
This is an alphabetical list of aircraft engines by manufacturer.
0–9 2si
*2si 215
*2si 230
*Cuyuna 430, 2si 430
*2si 460
*2si 500
*2si 540
*2si 690
3W
''Source: RMV''
*3W 106iB2
*3W-110
*3W-112
*3W-170
*3W-210
*3W-220
A
Aba ...
References
Notes
Bibliography
* Lumsden, Alec. ''British Piston Engines and their Aircraft''. Marlborough, Wiltshire: Airlife Publishing, 2003. .
External links
Photo of a Napier Culverin at Napierheritage.org
{{Napierengines
Culverin
A culverin was initially an ancestor of the hand-held arquebus, but the term was later used to describe a type of medieval and Renaissance cannon. The word is derived from the antiquated "culuering" and the French (from " grass snake", follo ...
Two-stroke diesel engines
Aircraft diesel engines
Opposed piston engines
1930s aircraft piston engines
Diesel engines by model
Diesel engines by maker