Limitations

Below you will find all the limitations you will need for CPT's.

=TH-57 Limitations=

VOLTMETER
24 volt DC min for battery start 17 volt DC min with starter engaged

ENGINE OIL TEMPERATURE
Normal range = 0° - 107°c Minimum = 0°c Maximum = 107°c Oil cooler valve opens at 71°c

TRANSMISSION OIL PRESSURE
Normal range = 30 – 50 PSI Min = 30 PSI Max = 70 PSI Caution light illuminates at 30 +/- 2 PSI

TRANSMISSION OIL TEMPERATURE
Normal range = 15° - 110°c Min = 15 °c Max = 110°c Caution light illuminates at 110°c

FUEL QUANTITY
Must land with a minimum of 10 gal. With a fuel boost pump failure, must land with 20 gal.

LOAD METER
70% max, if above suspect electrical fire. Do not engage ECS if above 50%

FUEL PRESSURE
Normal range = 4 – 30 PSI Caution light illuminates below 3.5 PSI.

TORQUE
Normal range = 0 – 85% Military power = 85 – 100%, 5 min limit Power transient = 100 – 110%, 5 sec limit

TOT
During start 810 - 927°c for 10 sec, never above 927°c During flight Normal range = 100° - 738°c Max continuous = 738°c Military power = 738° - 810°c for 5 min Transient power = 810° - 843°c for 6 sec

Ng
Flight idle = 59 – 65% Normal = 59 – 105% Max continuous = 105% Transient = 106% for 15 sec ENG OUT caution light on when Ng < 55 +/- 3% ENG OUT caution light out when Ng > 62 +/- 3%

Nf
Beep control = 96 – 101(+/-.5)% Normal = 97 – 100% Max continuous = 100% Max transient = based on a sliding scale which depends on time, %Nf, and TOT.

Nr
Accelerate through = 50 – 60 % Normal range = 90 –107% Minimum = 90% Maximum = 107% Transient = 107 – 114% for 5 sec Caution light/horn activated at 90 +/-3%