Sunday, March 27, 2022

Your Sunday Morning Prop Noise

A Sopwith Camel:



How engine speed was controlled is a fascinating topic.

2 comments:

  1. Fuel/ air mixture came through the hollow crankshaft and was not very controllable. A blip switch cut out cylinders to slow it down. The unburned mixture then often ignited into flames in the open cowlings when switched on, where the fuel and lubricating castor oil would pool. Needless to say, the fabric dope paint was highly flammable too.
    The rotation of the entire engine and propeller, combined with massing the plane's weighty items- engine, fuel and pilot- near the center of gravity meant the camel (never a RAS or RAF official name) could not be out turned. But only in right turns. It downed more enemy aircraft than any other in WWI but, sadly, was so difficult to train in and fight in that it killed many a young allied pilot as well. Used throughout the last stages of the war alongside the also deadly, but more stable, SE5A fighter. After the armistice the SE5A soldiered on in US and British service but the Camels were all junked, replaced by the Sopwith Snipe.

    ReplyDelete
  2. Nice links on rotary engines. Tx.

    ReplyDelete

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