de Havilland Gipsy Major

The de Havilland Gipsy Major or Gipsy IIIA was a 4-cylinder, air-cooled, inline engine used in a variety of light aircraft in the 1930s including the famous Tiger Moth biplane. The engine was a slightly modified Gipsy III which was effectively a de Havilland Gipsy engine modified to run inverted so that the cylinders pointed downwards below the crankcase. This allowed the propeller shaft to be kept in a high position without having the cylinders blocking the pilot's forward view over the nose of the aircraft. One disadvantage of the inverted configuration was the high oil consumption (up to 4 pints per hour) requiring regular refills of the external oil tank. The Major was a slightly bored out (118 mm from 114 mm) Gipsy III. First built in 1932, total production of all Gipsy Major versions was 14,615 units. In the years following World War II, this engine was built under licence in Italy as the Alfa Romeo 110. An engine is something that produces an effect from a given input. ... Look up aircraft in Wiktionary, the free dictionary. ... Face The 1930s (years from 1930–1939) were described as an abrupt shift to more radical and conservative lifestyles, as countries were struggling to find a solution to the Great Depression, also known in Europe as the World Depression. ... The de Havilland DH 82 Tiger Moth was a 1930s biplane designed by de Havilland and operated by the Royal Air Force and others as a primary trainer. ... Hs123 biplane. ... The de Havilland Gipsy was a British air-cooled 4-in-line aircraft engine designed by Frank Halford in 1927 to replace the de Havilland Cirrus in production. ... Crankshaft Continental engine marine crankshafts, 1942 Crankshaft is also the name of a comic strip about an old, curmudgeonly bus driver. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Year 1932 (MCMXXXII) was a leap year starting on Friday (the link will take you to a full 1932 calendar). ... Combatants Allied powers: China France Great Britain Soviet Union United States and others Axis powers: Germany Italy Japan and others Commanders Chiang Kai-shek Charles de Gaulle Winston Churchill Joseph Stalin Franklin Roosevelt Adolf Hitler Benito Mussolini Hideki Tōjō Casualties Military dead: 17,000,000 Civilian dead: 33,000... Alfa Romeo is an Italian automobile manufacturing company, founded as Darracq Italiana by Cavaliere Ugo Stella, an aristocrat from Milan in partnership with the French automobile firm of Alexandre Darracq. ...

Examples are on display at the Mosquito Aircraft Museum. The Mosquito Aircraft Museum is a small volunteer run aviation museum in the English county of Hertfordshire, just north of Greater London. ...

Aircraft

• Ambrosini S.1001
• De Havilland Tiger Moth
• Miles Magister
• Miles Whitney Straight
• Saab 91 Safir
• Ikarus Aero 2
• RWD-5bis
• DHC-1 Chipmunk

The de Havilland DH 82 Tiger Moth was a 1930s biplane designed by de Havilland and operated by the Royal Air Force and others as a primary trainer. ... Miles Magister at the Imperial War Museum, Duxford The Miles M.14 Magister was a British 2-seat monoplane basic trainer aircraft built by the Miles Aircraft for the Royal Air Force and Fleet Air Arm. ... The Miles M.11 Whitney Straight was a 2-seat light aircraft with a dual-control, side-by-side cockpit configuration developed in 1936 as a collaboration between Miles Aircraft and American-born Whitney Straight, best known as a Grand Prix motor racing driver and later an Royal Air Force... Saab 91C of the Swedish Airforce. ... The Ikarus Aero 2 was a piston-engined military trainer aircraft built in Yugoslavia in the years following World War II, although the design pre-dated the war. ... The RWD-5 was a Polish touring and sport plane of 1932, constructed by the RWD team. ... The de Havilland Canada DHC-1 Chipmunk is a tandem, two-seat, single-engined primary trainer aircraft which was the standard primary trainer for the Royal Canadian Air Force, Royal Air Force and several other air forces through much of the post-Second World War years. ...

Alfa Romeo 110

• Agusta CP-110
• Ambrosini S.1001
• Ambrosini SAI.10

Specifications (Gipsy Major)

General characteristics

• Type: 4-cylinder air-cooled inverted inline piston aircraft engine
• Bore: 4.646" (118 mm)
• Stroke: 5.512" (140 mm)
• Displacement: 373.7 in³ (6.124 L)
• Length: 48.3" (1227 mm)
• Width: 20.0" (508 mm)
• Height: 29.6" (752 mm)
• Dry weight: 300 lb (136 kg) Mk 1F to 322 lb (146 kg) Mk 1D

Components

• Valvetrain: OHV
• Fuel system: Downdraught Hobson A.I.48 H3M (Mk 1C and Mk 7) or H1M (others)
• Cooling system: Air-cooled

Performance

• Power output: 122 hp at 2,100 rpm - 145 hp (108 kW) at 2,550 rpm
• Specific power: 0.39 hp/in³ (17.6 kW/L)
• Compression ratio: 5.25:1 (Mk 1 and 1F) or 6.0:1 (others)
• Power-to-weight ratio: 0.48 hp/lb (0.78 kW/kg)

Usually found in 4 and 6 cylinder configurations, the straight engine (often designed as inline engine) is an internal-combustion engine with all cylinders aligned in one row, with no or only minimal offset. ... In engineering, specific power (sometimes also power per unit mass or power density) refers to the amount of power delivered by an energy source, divided by some measure of the sources size or mass. ... Bold text The compression ratio is a single number that can be used to predict the performance of any engine (such as an internal-combustion engine or a Stirling Engine). ... Power-to-weight ratio is a measure commonly used when comparing various vehicles (or engines), including automobiles, motorcycles and aircraft. ...

See also