The Air-Chopper was noted for its innovative use of the contra-rotating Coax-P aircraft propeller design to eliminate torque effects.
22.
The aircraft technical logbooks indicated that there had been no scheduled or unscheduled maintenance conducted on the aircraft propeller components.
23.
With the onset of World War I, AMPC became the largest manufacturer of wooden aircraft propellers in America by 1918.
24.
In 1909 Arthur Alexander Dashwood Lang became interested in aircraft propeller design and made some propellers in his own name.
25.
Her son Sylvanus Albert Reed became an engineer, winning the 1925 Collier Trophy for the invention of the practical aircraft propeller.
26.
Oerlikon even produced an anti-tank rifle firing 20?10mmRB ammunition using the API blowback operation, the synchronized fire through an aircraft propeller arc.
27.
The factory was taken over by F Hills and Sons of Manchester as a shadow factory, to manufacturer and repair aircraft propeller blades.
28.
In the APIB system, the cycle starts with the bolt open ( See : firing through a spinning aircraft propeller's blade arc ).
29.
As the boat reaches the edge of the waterfall, the paddle wheels at the front work like aircraft propellers, enabling it to fly.
30.
Durand proposed to the NACA the need for research on aircraft propellers, modeled on the work he had done on marine propellers at Cornell.
