引用:
原帖由 gabrielwong1991 於 23-5-2009 19:42 發表
i see thx
u work in HAECO?
應該講apu bleed 比風去engine, 叫bleed air!
起飛通常都用apu推engine個N1,跟住就N2, 跟住就EGT oil pressure increase , ignition 喺米? 744 來講?
你係咪想講著引擎呀
著車可以用apu/gnd cart/engine 俾氣到pneumatic starter
start透過gearbox帶動N2/N3(视乎引擎型號)
HP.turbine轉->LP turbine亦會轉->N1又會轉..不停轉.轉轉..
有compression,ignition,火水..車頭就會不停轉..