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 ...

Most ships control speed by changing engine power, but vessels with controllable pitch propellers adjust the blade angle instead. This video explains how variable pitch systems generate forward or ...

Now that we have definitely arrived in the 21st Century, you'd think that the military with their substantial budgets would have only the latest and most fancy technology flying in the sky. They do, ...

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 ...

A Thunder Bay innovator has landed a deal with a U.S. defence contractor that could take his small aviation firm soaring to new heights. Andrew Kondor, president of Aerovate, has sold two units of his ...

What does it take for a quadcopter to carry a 10-kg (22-lb) payload and fly for three hours straight? It takes petrol power – and a clever variable pitch rotor system that makes this gas-powered drone ...