Limits Flashcards
TORQUE % – TAKEOFF/MAX
100 (8)
- The PMU will govern maximum torque at 100 +/- 2 %. Torque above 102 % at a constant PCL setting and steady flight is indicative of a governing system malfunction.
ITT °C MAX – TAKEOFF/MAX
820 MAX
N1 % – TAKEOFF/MAX
104 MAX
Np % – TAKEOFF/MAX
100 MAX (2)
- With PMU OFF, permissible maximum NP is 100 +/- 2 %.
OIL PRESSURE psi – TAKEOFF/MAX
90 to 120 (6)
- Normal oil pressure during steady state conditions is 90 to 120 psi. Operation at oil pressure less than 90 psi at flight idle or above is indicative of oil system malfunction.
OIL TEMP °C – TAKEOFF/MAX
10 to 105
TORQUE % – IDLE
1 to 10 % (9)
(ground)
- Allowable torque range with Np stabilized and PCL at IDLE.
ITT °C MAX – IDLE
750 MAX
N1 % – IDLE
60 to 61 (ground)
67 Min (flight)
Np % – IDLE
46 to 50
(ground)
OIL PRESSURE psi – IDLE
90 Min
OIL TEMP °C – IDLE
-40 to 105 (Grnd)
10 to 105 (Flt)
106 to 110 (7)
- Acceptable for ground operation at and below 20% torque.
ITT °C MAX – START
871-1000
(5 sec)
OIL PRESSURE psi – START
200 Max
OIL TEMP °C – START
-40 Min
TORQUE % – TRANSIENT
101 to 107
(5 sec)(10)
- With the PMU on, torque between 102 to 107 % is possible following rapid PCL movement or aerobatic maneuvers. Torque above 107 % is a limiting system malfunction.
ITT °C MAX – TRANSIENT
821-870
(20 sec)
N1 % – TRANSIENT
104 MAX
Np % – TRANSIENT
110 (20 sec) (3)
- Permissible at any operating condition “power setting” for completion of an in-flight emergency.
OIL PRESSURE psi – TRANSIENT
40 to 130 (5)
- Operation in this range permitted only during aerobatics or spins, and 15 to 40 psi for 5 seconds with PCL at IDLE.
OIL TEMP °C – TRANSIENT
106 to 110
(10 minutes)
- With PMU OFF, permissible maximum NP is ___ +/- ___ %.
- With PMU OFF, permissible maximum NP is 100 +/- 2 %.