I am trying to figure out what compressor operation you mean
(superchargers? or wep?) It may not be modeled yet (there is one in the Br. 20 I think that powers flaps and such at certain times). There is a hand pump that is supposed to operate emergency manual fuel pumping.
I will be on ATAG server at 530pm ish central standard time today if you (all welcome!) want to meet in the ATAG ts3 axies channel I can walk you through what I know so far of the phases of flight to target and back
S!
ATAG_MajorBorris