PART III - HANDLING
be selected at any altitude and airspeed However until
experience is gained, it is commended that selection
of Manual and subsequent practice flying in Manual
should be carried out above 10,000 feet. This is because
of the out-of-trim forces which may be present when
Manual is selected and the extreme heaviness of the
controls and lack of manoeuvrability when in Manual.
The out-of-trim forces are usually slight provided that
the aircraft was in trim in Power, but if the tailplane
and elevator are incorrectly rigged these forces may be
large. Because of this possibility, when practice flying
in Manual is to be carried out, the first selection to
Manual should be made above 10,000 ft. and at a low
air-speed.
(b) Before selecting Manual, ensure:-
Airspeed 250 knots or 0.80M if above
40,000 ft.
Tailplane In trim
Aileron and rudder trim
indicators Neutral
Aileron trim lock Disengaged
------------------------------------------------------------------------
A.L.1 85. Flying in Manual
Para. 85
Page 80 (a) The elevator forces are high but tolerable and no difficulty should
be experienced with longitudinal control. The ailerons are heavy and
require some effort, but full stick deflection can be obtained with a
single-handed force up to 220 knots. Reaction of the aircraft to
aileron deflection is slow and delayed, therefore all necessary aileron
movements must be anticipated. The rudder, the further effect of
which is marked, can be used to assist control in the rolling plane
but should be used with care at low airspeeds.
(b) When carrying stores
Because of the increased inertia, lateral control is less effective; this
is particularly noticeable on the approach when lateral rocking due
to either turbulence or over-controlling is difficult to damp out. Due
to the increased turbulence below the wing and the tendency of the
ailerons to up-float, likelihood of obtaining a false anchorage
when re-engaging Power is increased.
(c) Trim changes
Increase and decrease of power Nil
Operation of undercarriage Roll in either direction (depending
on which main leg lowers first)
See para. 84
Flaps down Strong nose-down especially above
200 knots.
Flaps up Strong nose-up especially over 200
knots.
80 ---------------------------------------------------------------------
|