Thursday, February 12, 2009

Full Stalls Power-On

Power-on stall recoveries are practiced from straight
climbs, and climbing turns with 15 to 20° banks, to
simulate an accidental stall occurring during takeoffs
and climbs. Airplanes equipped with flaps and/or
retractable landing gear should normally be in the
takeoff configuration; however, power-on stalls should
also be practiced with the airplane in a clean
configuration (flaps and/or gear retracted) as in
departure and normal climbs.

After establishing the takeoff or climb configuration,
the airplane should be slowed to the normal lift-off
speed while clearing the area for other air traffic.
When the desired speed is attained, the power should
be set at takeoff power for the takeoff stall or the
recommended climb power for the departure stall
while establishing a climb attitude. The purpose of
reducing the airspeed to lift-off airspeed before the
throttle is advanced to the recommended setting is to
avoid an excessively steep nose-up attitude for a long
period before the airplane stalls.

After the climb attitude is established, the nose is then
brought smoothly upward to an attitude obviously
impossible for the airplane to maintain and is held at
that attitude until the full stall occurs. In most
airplanes, after attaining the stalling attitude, the
elevator control must be moved progressively further
back as the airspeed decreases until, at the full stall, it
will have reached its limit and cannot be moved back
any farther.

Recovery from the stall should be accomplished by
immediately reducing the angle of attack by positively

releasing back-elevator pressure and, in the case of a
departure stall, smoothly advancing the throttle to
maximum allowable power. In this case, since the
throttle is already at the climb power setting, the addition of power will be relatively slight. Power-on stall.

The nose should be lowered as necessary to regain
flying speed with the minimum loss of altitude and
then raised to climb attitude. Then, the airplane should
be returned to the normal straight-and-level flight attitude, and when in normal level flight, the throttle
should be returned to cruise power setting. The pilot
must recognize instantly when the stall has occurred
and take prompt action to prevent a prolonged stalled

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