Engine Placement Can Vary For Propeller-Driven Craft Most propeller aircraft have front-facing engines, but that's not the case for many helicopters with turboshaft engines, which are on top and ...

Since helicopters first began to get off the ground in the 1930s, the industry has called their primary lifting device a rotor. In fact, helicopters were preceded by autogyros, which used ...

As the aircraft moves, air flows against its front and subsequently against the yaw string. The yaw string, then, sticks against the helicopter's windshield, either upright or at an angle.

Most propeller aircraft have front-facing engines, but that's not the case for many helicopters with turboshaft engines, which are on top and power the rotor. The rotor is similar to a propeller ...