Aeroplane Propeller String Balance
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An illustration of weighing the propeller of the aeroplane to ensure it is balanced with the opposite side.
Keywords
propellers, propeller, Aeroplane Propeller String Balance, Airplane Propeller String Balance, Plane Propeller String BalanceGalleries
Air TransportationSource
H. Barber The Aeroplane Speaks (New York, NY: Robert M. McBride & Co, 1917)
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