TM Aviation Abbreviation

Traffic Management

Time

Mode by which is measured the passage of events. A measure of duration. In navigation, all time is measured by hour angle of a specific body or point, and is based on diurnal rotation of Earth, monthly revolution of Moon around Earth, the annual revolution of Earth round Sun.

Trim Servo Actuator

The trim actuator contains a spring-and-clutch mechanism that provides the force trim. If the pilot moves the cyclic control it will want to return to its original position. The autopilot's upper modes allow it to hold heading, a navigational course, altitude, and indicated airspeed.