Ops Limits Flashcards
Nr - Transient (Yellow)
(Power On)
101-107%
91-95%
Nr - Continuous (Green)
(Power On)
95-101%
Nr - Minimum
Except for Idle & Transient (Red)
(Power On)
91%
Main Rotor Overspeed
⭐️- 127%
⭐️⭐️- 137%
⭐️⭐️⭐️- 142%
Nr - Autorotation, Maximum
110%
(120% for FCF)
Nr - Autorotation, Transient
(Power Off)
105-110%
Nr - Autorotation, Normal
(Power Off)
90-105%
Nr - Autorotation, Min Single Engine GA
95%
ENG % TRQ - 12 Sec Trans > 80 KIAS
100-144%
ENG % TRQ
12 Sec Trans < 80 KIAS
120-144%
ENG % TRQ - Continuous > 80 KIAS
0-100%
ENG % TRQ - Continuous < 80 KIAS
0-120%
ENG % TRQ - 12 Sec Trans (Single Engine only)
135-144%
ENG % TRQ - Continuous (Single Engine only)
0-135%
Engine Nf
12 Second
105-107%
Engine Nf
Maximum
105%
Engine Nf
Transient
101-105%
91-95%
Engine Nf
Continuous
95-101%
Engine Nf
Min (EX Idle & Trans)
91%
Engine Nf
Avoid Ranges
20-40%
60-90%
Main Xmsn Oil Temp
Maximum
140 Degrees
Main Xmsn Oil Temp
Precautionary
105-140 Degrees
Main Xmsn Oil Temp
Continuous
-50 - 105 Degrees
Main Xmsn Oil Pressure
Maximum
130 PSI
Main Xmsn Oil Pressure
Precautionary
65-130 PSI
Main Xmsn Oil Pressure
Continuous
30-65 PSI
Main Xmsn Oil Pressure
Idle & Transient
20-30 PSI
Main Xmsn Oil Pressure
Minimum
20
Main Xmsn Oil Pressure
Caution Light
14 +/- 2 PSI
Engine Start Abort Criteria:
No TGT Rise within
45 Seconds
Engine Start Abort Criteria:
No Eng Oil Press within
45 Seconds
Engine Start Abort Criteria:
No Nf or NR Indications within
45 Seconds
Engine Start Abort Criteria:
Starter Caution Light Out before
52% Ng
Engine Start Abort Criteria:
TGT Reaches 851 C before
63% Ng
TGT DEG C
12 Sec Transient
903-949
TGT DEG C
2.5 Min Transient (Contingency Power)
TGT Limiting
878-903
881-901
TGT DEG C
Start Abort Limit
851
TGT DEG C
10 Minute Limit
TGT Limiting
851-878
857-875
TGT DEG C
30 Minute Limit
810-851
TGT DEG C
Normal
0-810
Engine Ng
12 Sec
102-105%
Engine Ng
Maximum
102%
Engine Ng
30 Min Limit
99-102%
Engine Ng
Continuous
0-99%
Engine Oil Temp
Maximum
150 Deg C
Engine Oil Temp
30 Min Limit
135-150 Deg C