Takeoff power (engine)

The starting power (MTOP = maximum takeoff power) of an aircraft engine is the maximum power that the start of an aircraft for take-off and subsequent climb is available. It is usually higher than the permissible continuous power (METO = maximum power except takeoff).

It must ensure that even with the highest allowable takeoff weight , the aircraft after take-off at any time, the maximum elevation figure can comply (Engl. Minimum sector altitude, MSA) to z. B. to fly over any aviation obstacles behind the runway .

The permissible starting power is determined in an approval process. The thermal and mechanical limits of the engine are set as a framework that must not be exceeded even for a short time. As a rule, the take-off performance is limited to between five (all engines) and ten minutes (one engine failed). Different machine cycles are tested depending on the approval body.

The FAA stipulates, among other things, a 30-hour run, in which there is a switch back and forth between starting power and maximum travel power in 5-minute cycles.