PPC Flashcards
When manual calculations are required, calculate PPC values IAW the appropriate operator’s manual and the instructions provided in task 1010 (ATM). Compute values within the following parameters:
- Torque values, +/- 2 percent
- Weight values, +/- 500 pounds
- Fuel flow, +/- 100 pounds per hour
- Airspeeds, +/- 5 knots
Item 38- GO/NO-GO TQ:
If the GO/NO-GO TQ is exceeded at the desired HVR altitude, then MAX TQ AVAIL (10 minute limit) will be exceeded if OGE maneuvers are attempted. OGE maneuvers should not be attempted if GO/NO-GO TQ is exceeded.
VALIDATION FACTOR:
Validation factor is a TQ value that is equal to your MAX allowable GWT for your mission profile based on departure conditions. If this value is exceeded prior to obtaining a desired wheel height HVR altitude then the aircraft GWT must be adjusted (unload cargo, passengers, or fuel) to ensure the aircraft is kept within the operator’s manual limitations.
Calculate the PPC values using accurate conditions for the time of takeoff within the following parameters:
- Free air temp +/- 5 degrees celcius
- Pressure altitude (PA), +/- 500 ft.
- GWT +/- 500 lbs.