Flight Instructors Training Procedures _revised AIC_x

v. Demonstrate – that by taking off power in a
spiral the height lost in recovery can be
minimised. Applying power for the climb
away, take care not to exceed the engine
limitations.
2. EFFECT OF AIRSPEED
Demonstrate the effect of airspeed on the
controls at low and high speeds at a constant
power setting, i.e. throttle closed. For high
speed demonstration, descend at best glide
speed plus 30%; then descend at best glide
speed for low speed demonstration.
3. EFFECT OF SLIP STREAM
Demonstrate the effect on the controls at a
high power setting, climbing at best angle of
climb and then at a reduced power setting at
the same speed whilst descending.
)+
increases, low nose attitude and high rate of
descent occurs – spiral dive.
v. Recovery from spiral descent:
a. Close throttle fully.
b. Simultaneously co-ordinated
movement of rudder and control
column to opposite side of spiral.
c. Centralise ailerons and rudder when
wings are level with horizon, balancing
with rudder.
d. Recover from dive − ease back on
control column.
e. When the nose moves through the
horizon, apply climb power.
RUDDER:-
i. Primary effect – yaw with secondary roll.
ii. Further effect from being banked, is slip and
yaw leading to increased bank and spiral
descent due to weather cocking effect.
iii. Recovery as for spiral dive.
Note: this exercise is to demonstrate the correct
use of the flight controls:
Change.
Check.
Hold.
HIGH AIRSPEED:-
i. Firm feel.
ii. Increased effectiveness of controls.
Relatively small movements result in large
changes in attitude.
LOW AIRSPEED:-
i. Reduced feel.
ii. Reduced control effectiveness especially
aileron. Large control movements result in
small changes of attitude.
REDUCED SLIP STREAM:-
i. Reduced feel.
ii. All controls relatively ineffective. Large
movement for comparatively small changes
of attitude.
INCREASED SLIP STREAM:-
i. Firmer feel on rudder and elevator. Ailerons
unchanged.
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