Flight Instructors Training Procedures _revised AIC_x

1. AIM
AEROBATICS
ROLL OFF THE TOP OF A LOOP (IMMELMANN TURN)
In this manoeuvre the aircraft is flown round the first half of a loop, commencing with extra speed.
From the top of the loop the aeroplane is rolled, from the inverted position, in much the same way as in
the second half of a slow roll. This aerobatic manoeuvre effectively changes the aeroplane’s heading
by 180°.
2. PRE-FLIGHT BRIEFING
Refer to information provided in aerobatic exercises on the Loop and Slow Roll.
3. DESCRIPTION OF AIR EXERCISE
a. APPLICABLE PROCEDURES AND CHECKLISTS
b. AEROPLANE HANDLING TECHNIQUES:-
DEMONSTRATION OBSERVATION
1. ROLL OF THE TOP OF A LOOP i. Lookout.
ii. Complete aerobatic checks – HASELL.
iii. Set climb power if C.S.U is fitted.
iv. Set trimmers for straight and level flight.
v. Select reference points for entry and
completion of manoeuvre.
vi. Commence manoeuvre as for loop except:
a. Steeper dive required.
b. Commence to ease out of the dive just
before reaching target speed for the
manoeuvre.
vii. When inverted at the top of the loop:
a. Check looping moment before the nose
cuts the horizon.
b. Commence roll – as per slow roll
manoeuvre from inverted position to upright
position.
c. Co-ordinate rudder and elevator
movements to bring nose onto the
horizon reference point.
d. Use ailerons to maintain a constant rate
of roll.
viii. Check with reference point for 180° heading
change.
ix. Resume straight and level flight.
x. Set power as required.
xi. Minimum height for the aeroplane to be at an
even keel is 2000ft agl.
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