A.L.1                      PART III - HANDLING
Page 63
        VHF                                            Frequency selected.       
        Rudder and aileron trimmers     Check and set neutral. Lock on.
        Tailplane actuator                      Test through full range on emer-
                                                            gency, lower cover then check
                                                            on normal and set at neutral.
                                                            (The stick should move for-
                                                            ward as nose-down trim is
                                                            applied and vice versa.) Tail-
                                                            plane switch (if fitted) OFF.
                                                            Note trim position on t.p.
                                                            incidence indicator and trim
                                                            to new position at least 1°
                                                            different.  T.P. switch ON.
                                                            Check tailplane does not
                                                            move from new position.
                                                            Move stick fore-and-aft and
                                                            check tailplane follows up.
        If the follow-up tailplane is fitted, during the check on the emergency
        switch if the switch cover is lowered with the tailplane at a different
        angle from that when the cover was raised the tailplane will revert
        automatically to the original trim angle.
        Hydraulic pressure                      2850±150 lb./sq. in. on both
                                                             centre needle of triple pres-
                                                             sure gauge and brake accu-
                                                             mulator gauge  Pressure at
                                                             each wheel 1,500 lb./sq. in.
                                                             Warning light out.
        Elevator and aileron power con- Switch each ON in turn and
          trol selectors                               move the control column
                                                             through its full traverse (using
                                                             a two-handed force if neces-
                                                             sary) to engage the controls
                                                             until free movement is felt,
                                                             check the indicators-black. 
        If Mod. 452 is incorporated hold the selector switch to POWER with
        the left hand and move the control column with the right hand,
        laterally for aileron engagement-fore and aft for elevator engage-
        ment, until the corresponding magnetic indicator goes black.  Then
        release the switch. To engage aileron power more easily it is advisable
        to either:-
         (i)  Select POWER with the stick held hard over to starboard and
              then move it to port or
         (ii) Attempt the engagement immediately after light-up before
              hydraulic pressure builds up.
        If Power is incorrectly engaged the controls revert to Manual on
        releasing the switch.
        Flaps                                           Check operation
        Instruments                                Correct functioning.  Erect Art.
                                                           Hor. Set Mk. 4F compass and
                                                               compare with E2.
        Fuel                                            Contents full.
                                                           Set both booster-pump switches
                                                             ON, check that each failure
                                                             warning light goes out. Trans-
                                                             fer indicator-"in-line".
                                                           Tank indicator-REAR.
                                                           L.P. warning light out.
        Rebecca                                      Set to S.B.

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