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Turbine Gas Temperature (TGT)
- 0 to 810 °C Continuous Green810 to 851°C 30 minutes Yellow
- 851 to 903°C 2.5 minutes Red
- 903 to 949°C 12 seconds Red
- 949 °C Maximum Red
-
Power Turbine Speed (Np)
- <96% Avoid Red96 to 101% Continuous Green101 to 120% 12 seconds Yellow
- 120% Maximum Red
-
Main Rotor Speed (Nr)
- <96% Avoid Red96 to 101% Continuous Green
- >101 to 120% Caution Yellow
- >120% Maximum Red
- 127%, 137%, and 142% Overspeed Latch Red
- Note
- During engagement, avoid extended operations in the 20 to 40% and 60 to 75% ranges.
-
Dual-Engine Torque (TRQ) <80 KIAS
- 0 to 120% Continuous Green
- 120 to 144% 10 seconds Yellow
- 144% Maximum Red
-
Dual-Engine Torque (TRQ) >80 KIAS
- 0 to 106% Continuous Green
- 106 to 127% 10 seconds Yellow
- 127% Maximum Red
-
Single-Engine Torque (TRQ)
- 0 to 135% Continuous Green
- 135 to 144% 10 seconds Red
- 144% Maximum Red
-
Gas Generator Speed (Ng)
- 0 to 98% Continuous Green
- 98 to 102% 30 minutes Yellow
- 102 to 105% 12 seconds Red
- 105% Maximum Red
-
Transmission Temperature (XMSNT)
- –50 to 105 °C Continuous Green
- 105 to 120 °C Precautionary Yellow
- 120 °C Maximum Red
-
Transmission Pressure (XMSN P)
- <20 psi Minimum Red
- ≥20 to 30 psi Idle and transient Yellow
- 30 to 65 psi (45 to 60 psi in level flight) Continuous Green
- 65 to 130 psi Precautionary Yellow
- 130 psi Maximum Red
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