PPC Flashcards
The same PPC Data will suffice for consecutive takeoffs and landings when what conditions apply?
When conditions remain within:
1) +/- 1,000lbs
2) +/- 10 C
3) + 1,000’ PA
What is the maximum power authorized for premission planning at departure/arrivals below 40KCAS?
30 minute power / Intermediate TQ Available
On the TQ available charts in the -10, the bend to the left on the lines indicates what?
A limit of either NG Speed or PTIT
What can you adjust on the cruise chart to meet mission requirements?
Airspeed and weight
Who is responsible for ensuring the aircraft limitations and capabilities are not exceeded?
Pilot in Command
What data is used to calculate the ppc
Mission forecast data
What PTIT value is considered when calculating continuous torque value
Max Continuous PTIT 816 C
If a PTIT limit and an NG limit coincide, which limit do we use
NG limit
A value less than 100% dual engine will indicate what limits will be reached before exceeding dual engine Xmsn torque limit
PTIT or NG (help 0C)
What value will be written if a calculated value is greater than 100% TQ
A value of 100%
Where can you find all the the 30 min Max TQ aviailable in CAAS
VSD TQ Tape Yellow triangle, FPLN SUM Fuel & PWR, LEGS, and Perf Prog INT TQ
What torque value is used to calculate GO/NO G
Max TQ Available
When should you consider NG as the limitation
When temperature is below 0 C
What items can be adjusted on the Departure Data of IPACX
Fuel, internal load, external load
Three sections of the performance planning card
Departure
Cruise data
Arrival data
What do the TQ available charts provide
Available ENG TQ for various combos of PA and Temp
Where can you find 10 min Max TQ available in CAAS
VSD TQ tape Red triangle, FPLN SUM LEGS, Perf Prog INT TQ and HVR override
What limiting factors do the torque available section provide
NG, PTIT and transmission
Indicators of NG section limiting
Rotor RPM droops if TQ demand exceeds available TQ.
Predominately cold temp issue
What value is used to determine if you have single engine capability at a hover
IGE Max Allow GWT Single Engine
Amount of power required to hover at the desired wheel height
Predicted HVR TQ IGE (Dual Engine) 10ft, 40ft with external load
Predicted HVR TQ OGE (Dual Engine) 80 ft
Used to determine if there is sufficient power to perform OGE maneuvers
Go/No-Go torque
What can be added to MAX MSN PROFILE GWT
Expendables used to reach the most restrictive point
Maximum gross weight to hover provides what
Upper chart provides max structural limit
Lower chart provides MAX GW IGE/OGE based on engine power
What can be caused by LCTs being stuck in ground
No cyclic feathering introduced
May cause excessive blade flapping
Excessive nose low pitch attitude at higher airspeeds
Excessive stress on the aft vertical shaft and rotor system
MAX R/C and Endurance CAS also serve as the best airspeed for
Single engine configuration
What does MAX RANGE CAS represent
The airspeed the aircraft can get the most distance out of the fuel load
Dual engine value only
Airspeed operating limits chart is used to determine an airspeed limit based on what
A structural limit
Or blade compressibility limit
What does the MAX R/C and END airspeed provide
Highest R/C
Max time aloft
Best single engine airspeed
What does MAX range airspeed provide
Greatest distance out of a fuel load
Where can you find the MAX Range airspeed
Perf Prog pages and FPLN Summary Legs page
The amount of additional power required to carry an external load based on the wind resistance of the load
Drag Factor
What does MIN and MAX single engine airspeed provide
The MIN/MAX airspeed range that may be flown w/ and w/o a load
What should be considered when selecting cruise speeds
A/S should be close to Single Engine Airspeed
Don’t exceed Vne line
What is the drag factor value used for
Amount of additional TQ required to carry an external load
