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The Bristol Neptune was a seven-cylinder air-cooled
radial engine The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders "radiate" outward from a central crankcase like the spokes of a wheel. It resembles a stylized star when viewed from the front, and is ca ...
developed in 1930. It had the same size cylinders as the earlier
Mercury Mercury commonly refers to: * Mercury (planet), the nearest planet to the Sun * Mercury (element), a metallic chemical element with the symbol Hg * Mercury (mythology), a Roman god Mercury or The Mercury may also refer to: Companies * Merc ...
and Titan engines, 5.75 in (146 mm) x 6.5 in (165 mm) which gave a
displacement Displacement may refer to: Physical sciences Mathematics and Physics *Displacement (geometry), is the difference between the final and initial position of a point trajectory (for instance, the center of mass of a moving object). The actual path ...
of 1,182 cu in (19.3 L) and produced a maximum of 320
horsepower Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors. There are many different standards and types of horsepower. Two common definitions used today are the ...
(239 kW). The Neptune was effectively a seven-cylinder version of the Titan.Lumsden 2003, p.103.


Applications

* Bristol Type 110


Specifications (Neptune I)


See also


References


Notes


Bibliography

* Lumsden, Alec. ''British Piston Engines and their Aircraft''. Marlborough, Wiltshire: Airlife Publishing, 2003. . {{Bristol aeroengines Aircraft air-cooled radial piston engines
Neptune Neptune is the eighth planet from the Sun and the farthest known planet in the Solar System. It is the fourth-largest planet in the Solar System by diameter, the third-most-massive planet, and the densest giant planet. It is 17 times ...
1930s aircraft piston engines