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Engine Oil Pressure
- 50 PSI Minimum
- Idle to 78% N1 (50-130 PSI)
- Above 78 to 89% N1 (90-130 PSI)
- Above 89% N1 (115-130 PSI)
- 130 PSI Maximum
- NOTE - Disregard yellow and green instrument markings for eng oil pressure.
- CAUTION - During cold weather starts pressure may go to 150 PSI but you must remain at idle position until normal limits are attained.
-
Airspeed
- 0 to 120 knots
- 120 knot IAS maximum
- 100 knots IAS recommended maximum for autorotations
- 100 knots IAS maximum with any door removed
- Sideward flight limits 35 knots
- Rearward flight limits 30 knots
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Rotor Tachometer
- 93% Minimum
- 49 to 58% Continuous Operation Prohibited
- 93 to 110% Normal Operation
- 110% Maximum
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Engine Tachometer, N2
- 98 to 100%
- 100% Maximum
- 15 seconds maximum transient N2 is 110% (autorotation)
- Avoid Steady-State Conditions Between 78-88% N2
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Torque Meter
- 0 to 85% Normal Operation
- 85 to 100% 5 minute Operation
- 100% maximum
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Turbine Outlet Temp (TOT)
- 300o C Maximum
- 300o C to 738o C Normal Operations
- Above 738o to 810o C 30 Minutes Limit
- 810o C to 843o C During power transient, 6 seconds Maximum
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Gas Producer, N1
- 62 to 105 % Normal Operation
- 105% maximum
- 105 to 106% Permissible for 15 Seconds
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