Definition
A digital computer that automatically calculates and commands the correct engine thrust setting for each phase of flight, working with the autothrottle system to maintain the target thrust or speed selected by the flight crew or flight management system.
Plain English
A computer that figures out how much engine power the aircraft needs and tells the throttles to deliver it — so the pilot doesn't have to constantly adjust them by hand.
Context Anchor
Seen in transport-category aircraft systems, especially when discussing automatic engine power control, takeoff power setup, and engine control system faults.
Derivation
Thrust is the forward force produced by the engines. Management here means automated control and limiting. Computer indicates it is a dedicated electronic processing unit. The name describes its job: a computer that manages thrust.
Why Pilots Care
It reduces pilot workload while keeping engines at safe, efficient thrust levels throughout the flight.
Intuition Check
Do not think of the TMC as the part that makes thrust. The engines make thrust; the TMC calculates and sends the desired thrust targets or commands.
Example Sentence 1
After replacing the TMC, the technician performed an operational check to confirm that the autothrottle responded correctly to commanded thrust changes.
Example Sentence 2
During the descent the TMC reduced thrust automatically as the aircraft approached the airport.