PT6A Flashcards
1
Q
Describe the PT6
A
850 SHP
Reverse Flow
Free-turbine
2
Q
Low pressure fuel pump
A
30 psi, 1250 pph
3
Q
High pressure fuel pump
A
850 psi, 1250 pph
4
Q
Minimum flow valve opens at:
A
70 psi
5
Q
Torque limiter
A
set to 2400 ft/lb
6
Q
Min oil temp for start:
A
-40
7
Q
Max starting ITT:
A
1000 for 5 seconds
8
Q
Max transient ITT:
A
850
9
Q
Max transient torque:
A
2750
10
Q
Max transient prop RPM:
A
2200
11
Q
Max continuous ITT:
A
- 41: 750
- 42: 800
- 52: 820
12
Q
Guardian max continuous cruise ITT:
A
- 41: 720
- 42: 760
- 52: 770
13
Q
Minimum N1 at low idle:
A
- 41: 52%
- 42:
- 52:
14
Q
Power setting for continued operation when oil pressure between 60 and 80 psi
A
1100 ft/lb
15
Q
Engine starter use limitation
A
40 on, 60 off, 40 on, 60 off, 40 on, 30min off
