Barring the smallest manned airplanes, most aircraft that are pulled around by a prop have variable pitch propellers. The reason for this is simple efficiency. Internal combustion engines are most ...

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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 ...

Barring the smallest manned airplanes, most aircraft that are pulled around by a prop have variable pitch propellers. The reason for this is simple efficiency. Internal combustion engines are most ...

The propeller component of this assembly was manufactured by Ole Flottorp in Chicago, Illinois for James B. Lund and R.D. Dwight, also of Chicago, who designed and constructed a mammoth tandem ...