LEWES, Del., Feb. 7, 2019 /PRNewswire/ -- Startup company Blainjett Aviation releases details of a breakthrough propeller technology called dynamic-variable-pitch. This dynamic-variable-pitch ...
Straight from the Aerospace Controls Laboratory comes a variable-pitch quadrocopter designed by [Mark Cutler] and [Jonathan P. Howe]. While real, full-sized helicopters always have variable pitch ...
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