Pobjoy P
http://dbpedia.org/resource/Pobjoy_P
The Pobjoy P was a British seven-cylinder, air-cooled, aircraft engine designed by and built by Pobjoy Airmotors. It became the progenitor of the Pobjoy R/Niagara/Cataract family of small radial engines. A notable feature of the Pobjoy P was the propeller reduction gear which allowed the small engine to operate at more desirable higher speeds.
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Pobjoy P
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56363825
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1111476362
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overhead valves operated by rockers, push-rods and tappets driven by a cam-plate at the rear of the engine
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Douglas Rudolf Pobjoy
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at 3,000 rpm rated output; at 3,300 rpm maximum
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Jane's all the World's Aircraft 1928
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7
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The Pobjoy P was a British seven-cylinder, air-cooled, aircraft engine designed by and built by Pobjoy Airmotors. It became the progenitor of the Pobjoy R/Niagara/Cataract family of small radial engines. A notable feature of the Pobjoy P was the propeller reduction gear which allowed the small engine to operate at more desirable higher speeds.
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Air-cooled
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ca.1926
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One Zenith carburetor
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80
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Dry sump, pressure system at
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Double-helical spur gear 0.524:1
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3441