| 词条 | Bristol Cherub | |||||||
| 释义 |
The Bristol Cherub is a British two-cylinder, air-cooled, aircraft engine designed and built by the Bristol Aeroplane Company. Introduced in 1923 it was a popular engine for ultralight and small aircraft in the 1930s.[1] Variants
Initial direct drive version introduced in 1923. Bore and stroke of {{convert|3.35|x|3.8|in|mm}} for a displacement of 67 cu in (1.095 L). {{convert|32|hp|kW}} at 2,500 rpm.[2]
Geared down (2:1) version of the Cherub I.
An improved and slightly larger (1.228 L) direct drive version introduced in 1925. Applications{{columns-list|colwidth=30em|
}} SurvivorsAn airworthy Messerschmitt M17 replica is owned and operated by the EADS Heritage Flight at Manching and is powered by an original Bristol Cherub III.[3] Engines on displayA preserved Bristol Cherub is on static display at the Shuttleworth Collection, Old Warden, Bedfordshire. Specifications (Cherub III){{pistonspecs| |ref=Lumsden.[4] |type=2-cylinder air-cooled, horizontally opposed, left-hand tractor |bore=3.54 in (90 mm) |stroke=3.8 in (96.5 mm) |displacement=75 in³ (1.228 L) |length= |diameter= |width=25.6 in (650 mm) |height= |weight=98 lb (39.5 kg) |valvetrain=Overhead valve |supercharger= |turbocharger= |fuelsystem= |fueltype= |oilsystem=Dry sump |coolingsystem=Air-cooled |power=36 hp (24 kW) at 3,200 rpm |specpower= |compression=5.75:1 |fuelcon= 2.5 imp. gallons per hour |specfuelcon= |oilcon= |power/weight= 0.36 hp/lb }} See also{{aircontent|see also= |related= |similar aircraft= |lists=
|similar engines=
}} ReferencesNotes1. ^Guttery 1969, p.80. 2. ^Lumsden 2003, p.101. 3. ^EADS - Messerschmitt M17 Retrieved: 9 August 2009 4. ^Lumsden 2003, p.102. Bibliography{{refbegin}}
External links{{Commons category|Bristol Cherub}}
3 : Boxer engines|Bristol aircraft engines|Aircraft piston engines 1920–1929 |
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