Normally, a plane moves along three rotational axes. “Inertia coupling” takes place when the plane inadvertently moves on two at the same time, usually resulting in loss of control.

The optimal size for a clutch or brake is determined by three things: Required torque, thermal horsepower per engagement, and average required thermal horsepower. Here, we'll discuss the first, ...

, also known as acceleration switches, typically open a set of switch contacts in the event of a crash or some other event generating severe g forces. The typical operating principle is to use a mass ...