Aircraft manufacture in United States during World War I. Men assemble Liberty motor. A man welds a metal pipe at the aircraft manufacturing plant. Men work on the engine, and at the control panel in the cockpit of an aircraft.
Aircraft manufacture in United States during World War I. A man with his headphones on, works at aircraft communication equipment. Equipment installed in an aircraft by a man as he works in the cockpit to install the equipment.
Aircraft manufacture in United States during World War I. Men work on wooden propellers at an aircraft manufacturing plant. Propeller balanced. Men apply glue and join them together. Propellers assembled at the plant.
Aircraft manufacture in United States during World War I. Propellers of an aircraft processed on profiling machines at an aircraft manufacturing plant.
Aircraft manufacture in United States during World War I. Propellers of an aircraft being shaved with hand and men give them final finishing. They inspect and measure the propellers. Process of balancing as propellers are turned by men. A man breathes out air which make the propellers turn.
Aircraft Manufacture in United States during World War I. Men assemble various parts of a plane at an aircraft manufacturing plant. Propellers attached to the nose of a plane. A man sits in the cockpit of an aircraft as two men stand on a ladder next to the plane. Men work on various other parts of the aircraft.
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