APU Limitations Flashcards
1
Q
Maximum Operation Altitude
A
45,000ft
2
Q
APU Start Altitude
A
Guaranteed… 39,000ft
May Start up to 43,000ft
3
Q
Electrical Load
A
100% SL - 45,000ft
4
Q
Assisted Air Starts
A
below 30,000ft
However, max engine start 25,000ft
5
Q
Maximum Start TGT
A
1050 C
6
Q
Maximum running TGT
A
732 C
7
Q
Maximum Rotor Speed
A
106%
8
Q
APU Battery Starts
A
3 Consecutive Start Attempts followed by 1 Hr cooldown
9
Q
APU external power starts
A
3 Start Attempts with 15 min cool down between each attempt.
1hr cool down after 3rd attempt
10
Q
APU successful consecutive starts
Old REF ONLY. NO LONGER EXIST PER DUSTIN’s INITIAL
A
Limited to 6 starts
With 10 minute delay between each start
