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 ...

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 ...

Each engine featured three-bladed variable-pitch propellers. Combined, the four engines produced 4,800 horsepower. The shape of the B-24’s tail section was distinct, featuring two oval-shaped ...