30 May 1915 – Synchronisation gear under test

The British continue to struggle with the problems of firing through the propeller. Development is focussing on developing pusher aircraft to avoid the issue altogether.

Meanwhile Anthony Fokker has been pressing ahead in the development of an interrupter gear. The initial version of the Fokker synchronization gear was designed to actively fire the gun rather than interrupt it, and (like the later V. It takes its primary mechanical drive from the oil pump of a rotary engine. The “transmission” between the motor and the gun was by a push-rod. The main difference was that instead of the push rod passing directly from the engine It was driven by a shaft joining the oil pump to a small cam at the top of the fuselage.

Fokker’s team had adapted the new system to the new Parabellum MG14 machine gun, and fitted it to a Fokker M.5K, a type which was at the time serving in small numbers with the Fliegertruppen as the A.III. This aircraft, bearing IdFlieg serial number A.16/15. This prototype was demonstrated to IdFlieg by Fokker himself on 19–20 May 1915 at the Döberitz proving ground near Berlin. Leutnant Otto Parschau began test flying this aircraft today.

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One thought on “30 May 1915 – Synchronisation gear under test

  1. Pingback: 21 July 1916 – Otto Parschau killed | airwar19141918

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