What does the shaded area on the Height Avoid charts indicate?
Hazardous airspeed and wheel height combinations from which a single engine landing would be extremely difficult without some degree of aircraft damage or crew member injury
ATF?
-Aircraft Torque Factor
-Average of the two ETFs
-0.90 to 1.096
Four ways to validate PPC?
- A/C WT page and the A/C basic weight and moment values against current DD Form 365-4
- A/C ETF for ENG 1/2 values against aircraft HIT log
- CUR PERF mode page status vs PPC
- CUR PERF mode page vs Hover Power Check
What weight is entered in blocked number 4?
Weight of the external stores during the mission profile that can be jettisoned
If we jettison our load, what affect will that have on the aircraft’s performance?
Change in GWT of 200 lbs will equate to a change in TQ of approximately 1% and 1 knot less and 1 knots greater single engine airspeed
ETF?
Engine TQ factor. Health of the engine.
-0.85 - 1.096
If you dont have OGE power what maneuvers are you not allowed to do?
-VMC take off (confined area altitude)
-VMC approach (to OGE hover)
-Respond to Engine Failure, OGE Hover
-Terrain Flight (NOE)
-ITO
-Masking and Unmasking
If you jettison the wing stores what blocks would it change?
-Predicted Hover Torque
- Most of Cruise section (except MTA)
What is required to be in the REMARKS section?
- Max airspeed with one engine in-op
- TQ and TAS req for rolling takeoff (If IGE Power limited)
What can you expect if you fly above VNE?
Retreating Blade Stall
Explain the Max R/C and Max Endurance TAS block?
Where total drag is the lowest. This airspeed provides the best power to drag ratio. Apply MAX TQ Available with that airspeed to achieve MAC R/C
How is mission fuel calculated for block number 5?
Fuel required for takeoff to complete the mission to include the reserve fuel (20 min for VFR, 30 min for IFR)
What is the TR used for in block 8?
The torque ration is used to compute the actual single/dual engine max torque available with ETF’s other than 1.0
What will happen if you pull more than your MTA?
Rotor droop
Engine performance may be environmentally limited due to three factors
-TGT
-Fuel flow
-Ng Mach
If you don’t have OGE Power what are some of the maneuvers you are not allowed to do IAW ATM?
- VMC Takeoff (confined area altitude over airspeed)
- VMC Approach (termination to OGE Hover)
- Respond to Engine Failure, OGE hover
- Perform ITO
- Perform Terrain Flight (NOE)
- Perform Masking and Unmasking
