Interesting. Ignition at 11%. The starter motor actually puts in a lot of work to get it up to speed (500amps at 21volt, that's 10kW). Halving the size would only add a few seconds to the start up but I guess it doubles as alternator and the bird's aircon is hungry. although at altitude cooling should be easy... I guess it's sized for powering a lot of AC while idling on the ground.
That’s way above my level of knowledge, the engineers figured that out. Ignition and fuel is all controlled by the fadec. In non-fadec jets ignition comes on when you hit the starter button and fuel is introduced when the pilot takes the throttles out of cutoff, usually around 13% but varies with models and operations.
Thanks for sharing. You probably noticed yourself that the audio during taxi was poor due to engine background; maybe you should wire your microphone another way.
Thanks for sharing the experience. Stay safe!!
Interesting. Ignition at 11%. The starter motor actually puts in a lot of work to get it up to speed (500amps at 21volt, that's 10kW). Halving the size would only add a few seconds to the start up but I guess it doubles as alternator and the bird's aircon is hungry. although at altitude cooling should be easy... I guess it's sized for powering a lot of AC while idling on the ground.
That’s way above my level of knowledge, the engineers figured that out. Ignition and fuel is all controlled by the fadec. In non-fadec jets ignition comes on when you hit the starter button and fuel is introduced when the pilot takes the throttles out of cutoff, usually around 13% but varies with models and operations.
Thanks for sharing. You probably noticed yourself that the audio during taxi was poor due to engine background; maybe you should wire your microphone another way.
I didn’t have a mic plugged in, it was using internal microphone. Didn’t think about until afterwards.