Page 15 - PDF-Sample
P. 15
Chapter-5 Stalls and Spins-V20_Sport Pilot Handbook 8/30/2021 5:56 PM Page 21
Chapter 5: Stalls and Spins 5-21
How does the use of aileron to raise a drop- Aileron Application and Angle of Attack
ping wing increase the angle of attack on that
wing? Figure 27 shows how turn- As the left wing stalls and
drops, attempting to raise it by
ing the yoke to the right lowers using right aileron increases
the aileron on the stalled the angle of attack on the left
wing, thus deepening the stall
(left) wing, thus further
on that wing.
increasing the angle of at-
tack on that wing beyond
its critical value.
Your first reaction
whenever a wing drops
should be to reduce the
angle of attack and simul-
taneously apply rudder to Right aileron
stop the yawing (or rolling) deepens the
stall on the
motion while neutralizing the left wing
ailerons. You can’t spin if you don’t Fig. 27
yaw. Period! As a general rule during all
stalls, if one wing drops (or begins to Left Wing Stalling and Dropping First
drop) during a stall, resulting in
the airplane yawing and rolling
toward the dropping wing,
leave the ailerons in their neu-
tral position and release eleva-
tor back pressure to reduce
2 1
the angle of attack on both Recover by Airplane rolls
lowering the and yaws to
wings while simultaneously nose and the left as
applying sufficient rudder pres- applying left wing
sure to stop the yawing motion. right rudder stalls first
If a left wing drops, resulting
in a yaw and roll to the left, apply
Fig. 28
right rudder (Figure 28); if the right
wing drops, resulting in a yaw and
Right Wing Stalling and Dropping First
roll to the right, apply left rudder
(Figure 29). As you are applying
rudder, you are simultaneously
reducing the angle of attack.
How much rudder pres-
sure should you apply to stop
the yawing motion? Enough
to stop the yawing motion! 1
That’s right. Do whatever 2 Airplane rolls
Recover by and yaws to
it takes, and don’t be shy
lowering the the right as
about doing it. Push that rud- nose and right wing
der pedal all the way to the floor- applying left stalls first
rudder
board if necessary. You’re usually at Fig. 29
a very slow airspeed, which means the