The concept of the rotary engine (the whole engine running around a fix crankshaft) is a french innovation.
Although rotaries where made in UK, Italia and Germany, the french ones where seen as the best ones; to the extent that french engines (removed from crashed planes) where fitted to German aircrafts.
The last Fokker Dr. I of Manfred von Richtofen had a french engine! And Clerget engines where (and still are) the most sought after french engine of WWI
The concept of the rotary engine (the whole engine running around a fix crankshaft) is a french innovation.
Although rotaries where made in UK, Italia and Germany, the french ones where seen as the best ones; to the extent that french engines (removed from crashed planes) where fitted to German aircrafts.
The last Fokker Dr. I of Manfred von Richtofen had a french engine! And Clerget engines where (and still are) the most sought after french engine of WWI
Clerget 9B characteristics :
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Performances :
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9 cylinders rotary engine
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Power : 130 hp at 1250 rpm
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Length: 78 cm
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Total weight : 117 kg
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Width : 85 cm
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Compression ratio: 8,5:1
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Bore : 120 mm
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Consumption of fuel: 27,71 l/h
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Bore : 130 mm
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Stroke : 160 mm
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Consumption of oil: 7,62 l/h
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Engine Clerget 9B on Sopwith Camel (canadianflight.org)
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Nieuport 12
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Sopwith Camel
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Sopwith Triplane
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Sopwith Strutter
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Aircraft powered with a Clerget 9B :