Ops Limits Flashcards
MAX ALLOWABLE - MAX TIME
5 MIN
MAX ALLOWABLE - TORQUE
2200 RPM - 1315
MAX ALLOWABLE - ITT
790
MAX ALLOWABLE - N1%
101.5
MAX ALLOWABLE - Np RPM
2200
MAX ALLOWABLE - OIL PX
85-100
MAX ALLOWABLE - OIL TEMP
10-99
MAX CONTINUOUS - MAX TIME
CONTINUOUS
MAX CONTINUOUS - TORQUE
2200 RPM - 1315
1900 RPM - 1520
MAX CONTINUOUS - ITT
790
MAX CONTINUOUS - N1%
101.5
MAX CONTINUOUS - Np RPM
2200
MAX CONTINUOUS - OIL PX
85-100
MAX CONTINUOUS - OIL TEMP
10-99
CRUISE CLIMB - MAX TIME
CONTINUOUS
CRUISE CLIMB - TORQUE
2200 RPM - 1315
1900 RPM - 1520
CRUISE CLIMB - ITT
765
CRUISE CLIMB - N1%
101.5
CRUISE CLIMB - Np RPM
2200
CRUISE CLIMB - OIL PX
85-100
CRUISE CLIMB - OIL TEMP
10-99
CRUISE - MAX TIME
CONTINUOUS
CRUISE - TORQUE
2200 RPM - 1315
1900 RPM - 1520
CRUISE - ITT
740
CRUISE - N1%
101.5
CRUISE - Np RPM
2200
CRUISE - OIL PX
85-100
CRUISE - OIL TEMP
10-99
HI-IDLE - MAX TIME
CONTINUOUS
HI-IDLE - OIL TEMP
-40-99
LO-IDLE - MAX TIME
CONTINUOUS
LO-IDLE - ITT
+
High ITT may be decreased by reducing accessory load and/or increasing N1 Speed.
685
LO-IDLE - OIL PX
40 MINIMUM
LO-IDLE - OIL TEMP
-40-99
START - MAX TIME
40 SECONDS
START - ITT
+
This value is time limited to ___. If ITT is likely to exceed ___, discontinue start.
1090
2 Seconds
925
START - OIL PX
INDICATION
START - OIL TEMP
-40 MINIMUM
ACCELERATION - MAX TIME
2 SECONDS
ACCELERATION - TORQUE
2200/1900 RPM - 2100
ACCELERATION - ITT
+
High GEN loads at low N1 speeds may cause the ITT acceleration TEMP LIMIT to be exceeded. Observe the generator load limits.
850
ACCELERATION - N1%
102.6
ACCELERATION - Np RPM
2420
ACCELERATION - OIL TEMP
10-99
MAX REVERSE - MAX TIME
1 MINUTE
MAX REVERSE - ITT
790
MAX REVERSE - N1%
86
MAX REVERSE - Np RPM
2100
MAX REVERSE - OIL PX
85-100
MAX REVERSE - OIL TEMP
10-99
HI-IDLE
+
N1 ___ to ___ %
70-73%
LO-IDLE
+
N1 ___ to ___ %. Ground operations above 3500-foot PX Alt (PA) may produce idle speeds as high as ___ % N1 with condition levers at low idle.
51-54%
83%
OIL PX
+
Normal Oil PX is ___ to ___ PSIG at power settings above 27,000 RPM (72%) N1, Oil PX below ____ PSIG is undesirable, and may be used only for completion of a flight, and then at a reduced power setting. Low Oil PX should be corrected prior to next flight. During ground operations, Oil PX below ____ PSIG require engine shutdown; during flight, Oil PX below ____ PSIG is unsafe and requires either engine shutdown or use of minimum power until a landing can be made.
85-100
85
40
40
N1 %
+
For every 10•C below -30•C ambient air temp, reduce MAX ALLOWABLE - N1 by ___ %.
2.2
TORQUE
+
Torque limits between ___ and ___ RPM vary linearly between ___ and ___ FT-LB
1900-2200
1315-1520
LO-IDLE - Np RPM
+
If propeller rpm does not read between ___ and ___ RPM with the POWER LEVERS - IDLE and CONDITION LEVERS - Low Idle, perform a low pitch torque check to ensure propeller flight idle stops are correctly adjusted.
900-1100
MAX CONTINUOUS
+
Note
This power rating is intended for emergency use at the discretion of the pilot.
