Aircraft General Knowledgehard#374
At what altitude is APU bleed air use typically limited?
A
Sea level only
B
Up to approximately FL250 (varies by type)
CorrectC
Up to FL410
D
No altitude limit
Explanation
APU bleed air capability decreases with altitude; many APUs can only supply bleed up to about FL250, though electrical generation continues higher.
Ready for a timed quiz?
Test yourself with random questions from Aircraft General Knowledge and all other ATPL subjects.
Start a Practice Quiz