But did you know that older aircraft featured counter-rotating propellers, meaning that while one turned clockwise, the other ...

An American Airlines jet with 60 passengers and four crew members aboard collided Wednesday with an Army helicopter while ...

The carbon-fiber composite propeller is now available for Cessna 180, 182, 185, 206, and T206 single-engine aircraft equipped with Continental 470-50, 520, and 550 engines. The propellers come in ...

As investigators try to uncover what happened when an airplane and a helicopter collided over the Potomac River, here is the ...