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PART III-HANDLING


         (iii)  As the aircraft becomes supersonic a slight change
                in rudder angle may be felt but this does not affect
                directional trim.
          (iv)  The rudder tab loses effectiveness above 0.9M and
                excessive amounts should not be applied owing to
                the foot force which will develop as speed is reduced.
     (d)  Airbrakes
          The flaps may be used as airbrakes at any speed or mach
          number.  Up to about 0.9M there is very little trim
          change, but at higher mach numbers a nose-down  trim
          change occurs; this can be held on the elevator.

      (e)  Changes of trim
           Undercarriage DOWN	Negligible fore and aft.
				Yaw to starboard.
           Flaps/Airbrakes	Negligible up to 0.94M
				  above which nose-down
				  change occurs.

      (f)  Flying at reduced airspeed
            (i)  Fly at 180 to 200 knots, using the flaps as required.
           (ii)  The hood may he opened if necessary but an
                 uncomfortable drumming roar is caused when fully
                 open. The maximum speed for opening the hood is
                 240 knots.
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A.L.1       (g)  Flying in turbulence
Para. 65.         The recommended speeds for flight in turbulent conditions are
(g)                 as follows:-
Page 62                  Level flight, or climbing	300 knots/0.79M.
                            Descending, airbrakes out	270 knots/0.79M.
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     66.  Practice flying in Manual control
          NOTE.-If, after practice flying in Manual, it is not
                possible to re-engage Power correctly (indicated
                by the red light flashing) select Power off. If
                subsequent attempts to re-engage Power are
                unavailing the remainder of the flight and the
                landing must be carried out in Manual.

     (a)  Ailerons
          (i)  Before selecting aileron power OFF in flight, check
               that the aileron trim is neutral and speed is below
               280 knots or 0.8M. If an aileron has been changed,
               or any adjustments made which may affect lateral
               trim, check the aircraft in Manual at 200 knots, and
               set the aileron trim as required.

62

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