I A P 2 0 2 3 . 0 0 1 - A F M / I R I S T E X A N I I P A G E | 207
FOR SIMULATION USE ONLY – NOT A TRAINING AID
A power-off inverted stall is characterized by a slow nose drop with the control
stick on the forward stop. During an inverted stall at 100% torque, the aircraft will
maintain a pitch attitude of approximately 30° nose above the horizon with full
forward stick.
NOTE
Intentional inverted stalls are prohibited.
ACCELERATED STALLS
An accelerated stall induced by a turning entry and increased G is preceded by
pronounced airframe buffet before the stall is reached.
Buffet onset occurs well prior to the actual stall at higher G conditions. However,
below 2 G’s there may be little natural buffet prior to the actual stall.
During a turning entry, the stall is characterized by a moderately abrupt lateral
roll-off (either into or away from the direction of turn). The actual stall speed may
vary by several knots depending on the entry from a left or right turn.
An accelerated stall induced by a rapid decrease in airspeed or a pitch up exhibits
similar lateral roll-off characteristics.
Sustained heavy buffet in accelerated stalls at greater than 3 G’s can produce
damaging loads in the fuselage and empennage.
Accelerated stalls initiated at greater than 3 G’s do not sustain heavy buffet beyond
the period required to recognize the accelerated stall.
For accelerated stalls initiated at greater than 3 G’s, do not sustain heavy buffet
beyond the period required to recognize the accelerated stall.
STALL RECOVERY
Stall recovery is accomplished as follows:
1. Reduce angle of attack. This may require a reduction in back stick pressure, or
moving stick progressively towards neutral, or moving stick forward of the trim
position.
2. Advance PCL as required to maintain flying airspeed. Anticipate engine power
effects, applying aileron and rudder as necessary to maintain or achieve wings
level.
3. Use aileron and rudder control as necessary to maintain wings-level, coordinated
flight throughout the recovery.
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