The AW 139 does indeed have some relevant data in the RFM Section 4.
A procedure is detailed and a graph provided that details the height loss under various conditions. For example:
sea level
20 deg C
6400 kg
Height loss = 55 feet
Procedure calls for :
FLYAWAY PROCEDURE
1. Collective/Cyclic control — Rotate nose down in 1 second to an attitude of -20°. Recover pitch attitude to 5° nose up in approximately 5 seconds. Maintain this attitude while using the collective to droop the NR to a minimum of 90% NR, if necessary, to
arrest the descent.
2. Acceleration — Maintain pitch attitude at 5° nose up and accelerate to
VTOSS (40 KIAS).
3. Climb — When the aircraft has achieved VTOSS (40 KIAS) and a positive rate of climb lower collec- tive to recover NR to 100%,
You can see why taking longer than the test pilots allow for reaction time may leave you smacking into the surface with the nose wheel instead of the main wheels.
If you guys saw what I see every day you probably wouldn't be quite so bullish about the performance of a significant minority of colleagues who in all probability could not match your expectations.
We used to have great fun doing 'OEI flyways' in the MBB 105. We had to start at 200 feet min for the HOGE because a minor misjudgement by the student would not give the instructor much time to recover the situation. Then again the MBB 105 was not famous for its OEI performance.
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