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Fuel Injected Aircraft Engine

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September 19, 2014
In the mid 1930s, the German Messerschmitt Bf109 fighter aircraft introduced gasoline fuel injection directly into the combustion chamber on its Daimler-Benz engine, giving the pilot a combat advantage over opponents with carbureted engines since his engine did not quit with negative-g maneuvering.

Fuel injection permitted use of 87 octane fuel.  This contrasted with the 100+ octane of the opposition Allied aircraft engines that used carburetors.  Power output and therefore speed were very close to each other, despite the difference in fuel quality.

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