The de Havilland Gipsy Major Aircraft Engine
The de Havilland Gipsy Major (a.k.a. Gipsy III) was the first version of the Gipsy inline 4 cylinder air-cooled aero-engine designed to be run inverted, there were advantages and disadvantages in doing this, it gave the pilot an unobstructed forward view, especially helpful on take-off and landings, but at the cost of higher oil consumption and potential for oil fouling of the spark plugs.
The de Havilland Gipsy Major was introduced in 1932 and after modifications to the piston rings to alleviate the oil problem proved to be very successful, a total of 14,615 engines being built. The most impotent use of the de Havilland Gipsy Major was probably it's use in the RAF's main trainer leading up to ww2, the Tiger Moth. Many, if not most of the RAF's pilots learnt their basic skills whilst sitting behind a de Havilland Gipsy Major aero-engine.
Aircraft that were powered by the de Havilland Gipsy Major
|Airspeed Ferry||de Havilland Hornet Moth||Miles Magister|
|AISA I-115||de Havilland Leopard Moth||Miles Mercury|
|Arrow Active||de Havilland Moth Major||Miles Messenger|
|Auster Aiglet||de Havilland Puss Moth||Miles Minor|
|Auster Autocar||de Havilland Tiger Moth||Miles Monarch|
|Auster Autocrat||de Havilland T.K.2||Miles Sparrowhawk|
|Beagle Terrier||de Havilland T.K.4||Miles Whitney Straight|
|Boulton Paul P.92||Elliotts Newbury Eon||Percival Gull Major|
|British Aircraft Cupid||Fairey Primer||Reid and Sigrist Desford|
|British Aircraft Eagle||Foster Wikner Wicko||Rogozarski SIM-Х|
|British Aircraft Double Eagle||General Aircraft Cygnet Major||RWD-5bis|
|Blackburn B-2||General Aircraft Monospar||RWD-19|
|Chrislea Super Ace||Handley Page Manx||Saab 91 Safir|
|Comper Mouse||Hirtenberg HS.9||Saunders-Roe Skeeter|
|Comper Streak||Ikarus Aero 2||Stampe SV.4|
|Comper Swift||Koolhoven F.K.43||Thruxton Jackaroo|
|De Bruyne Snark||Miles Aerovan||VL Viima|
|de Havilland Dragon||Miles Falcon Major||Auster 6A Tugmaster|
|de Havilland Dragonfly||Miles Gemini||de Havilland Chipmunk T.10|
|de Havilland Australia Drover||Miles Hobby|| |
|DHC-1 Chipmunk||Miles Hawk Trainer|| |
|de Havilland Fox Moth||Miles Libellula|| |
de Havilland Gipsy Major I Specifications:
- Type: 4-cylinder OHV air-cooled inverted inline piston aircraft engine
- Bore: 4.646 in (118 mm)
- Stroke: 5.512 in (140 mm)
- Displacement: 373.7 in³ (6.124 L)
|Length: 48.3 in (1227 mm)Width: 20.0 in (508 mm)Height: 29.6 in (752 mm)Dry weight: 300 lb (136 kg) Mk 1F to 322 lb (146 kg) Mk 1DFuel system: Downdraught Hobson A.I.48 H3M (Mk 1C and Mk 7) or H1MOil system: Dry sump, gear-type pumpCooling system: Air-cooledPower output: 122 hp at 2,100 rpm, 145 hp (108 kW) at 2,550 rpmSpecific power: 0.39 hp/in³ (17.6 kW/L)Compression ratio: 5.25:1 (Mk 1 and 1F) or 6.0:1 (others)Fuel consumption: 6.5 to 6.75 gph (28.4 to 30.7 L/h) at 2,100 rpmOil consumption: 1.75 pints (0.99 L) per hour.Power-to-weight ratio: 0.48 hp/lb (0.78 kW/kg)|| |
de Havilland Gipsy III
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de Havilland Gipsy Major Aircraft Engine picture and Specifications