2016年7月21日 · 我個人理解是，767、777、787有了這個向外打開的APU air inlet door，進氣效果肯定好於747和737那種側面引氣方式，況且空中啟動APU一定是一些特殊情況，比如發動機的供電系統或者供氣系統故障。

2016年7月21日 · 我个人理解是，767、777、787有了这个向外打开的APU air inlet door，进气效果肯定好于747和737那种侧面引气方式，况且空中启动APU一定是一些特殊情况，比如发动机的供电系统或者供气系统故障。

2021年3月16日 · Changing the state on the iPad will power it up, but if you would like to start it on your own without using the EFB (from Cold and Dark cockpit), proper sequence would be: Wait a few seconds and press the right one (START / STOP switch). After 10 seconds or so the APU should be online. Looks like you found the Vol3_Tutorial.PDF.

2016年7月29日 · 能找到APU selector switch和APU GEN的开关。 可以想象一般的操作规程里， 先是APU switch start到on，然后APU GEN on， 等发动机都启动完毕以后，APU switch off和APU GEN off就可以了。 但是在发现APS5000型APU的这个发热变形问题之后， 只好暂时先不关掉APU switch off这一步了吧。

Here we used an air stair truck to access the APU doors on a 767 and a 737. Salt Lake City Fire Department.

ATA 49 APU Access Door Opening Procedure For Airbus A318, A319, A320 & A321

The inlet door is hinged at the aft end and opens outward into the airstream, it has three positions: Closed, Ground position (45deg) and Flight position (17deg). Normal door transitions take 40 to 120 seconds between positions. You can despatch with the door locked in the flight position at a 1% fuel burn penalty. 737 MAX APU air inlet closed

2002年9月27日 · [G450 Aircraft Operating Manual, §2A-49-20 ¶2.A.(1)] An air inlet door mounted on the top right side of fuselage in front of the vertical stabilizer provides an intake to the APU turbine. The inlet door is controlled by the APU Electronic Control Unit (ECU) and operated by an electrical actuator.

This study uses numerical simulation to study the impact of APU inlet door angle on aerodynamic performance of inlet system. The results show that within the study range, under the flight condition, the total pressure recovery coefficient and the ram recovery coefficient of the APU inlet duct outlet first increase and then decrease with ...

2018年4月8日 · In PSX 10.30 there are two new APU malfunctions: "Oil/N2" (Severe: oil leak; else: N2 overspeed) and "inlet door" (Severe: does not open; else: does not close). There is no problem to get the APU DOOR message when it's open while it should be closed. I think there must also be a way to get the message when it's closed while it should be open.