APU Flashcards
0
Q
MAX operating Altitude?
A
45,000 ft
1
Q
MAX Start Altitude
A
43,000 ft
2
Q
Guaranteed Start Altitude
A
39,000 ft (but may start up to 43,000’)
3
Q
Electrical Load Limit
A
100% to 45,000 ft
4
Q
MAX Start EGT
A
1050 deg C
5
Q
MAX Continuous EGT or running EGT?
A
732 deg C
6
Q
MAX RPM or Rotor Speed?
A
106%
7
Q
APU Air for Takeoff limit
A
Up to 1,500 ft
8
Q
Starter Duty Cycle - Using Aircraft Batteries
A
3 consecutive starts followed by 1 hour off
9
Q
Starter Duty Cycles - Using EXT DC Power
A
Max of 3 attempts, with 15 minutes between each start attempt; followed by 1 hour OFF
10
Q
Starter Limits - Consecutive
A
6 with 10 minutes between each start
11
Q
APU air use for ENG Airstarts
A
Up to 30,000 ft
12
Q
Engine Start Altitude
A
25,000 ft MAX
