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                           PART 1-DESCRIPTIVE

         (iii) Direction indicators

               Pre-Mod. 1177 there is a direction indicator in each
               cockpit.  Post-Mod. 1177 there is one in the rear
               cockpit only.   The gyros for these indicators are
               vacuum-operated (see para.15).

         (iv)  E.2.A compass

               There is an E.2.A compass in each cockpit, to the
               right of the instrument panel.  The one (42) in the
               front cockpit is below the instrument panel coaming, while that
               (110) in the rear is at the bottom of the panel.

    (c)  Artificial horizons
    
         The gyros for the artificial horizons are vacuum-operated
         (see para. 15).

    (d)  Turn and slip indicators
    
         Pre-Mod. 1228 the turn and slip in dicators are operated by
         the vacuum system.  Post-Mod. 1228 the instruments are
         electrically operated and have OFF flags to indicate power
         failure.  The electical supply is controlled by the compass
         master switch.

    (e)  There are clocks (46) (114) in both the front and rear
         cockpits (post-Mod. 1844 rear cockpit) to the right of the
         instrument panel.

    (f)  I.L.S. and Zero reader
    
         Mod. 1636 introduces I.L.S. Zero reader and a Mk. 4FT
         compass.  The gunsight is removed in the front cockpit
         and the gyro unit, voltmeter, control panel, course selector,
         horizon gyro unit, Zero reader indicator, I.L.S. indicator,
         control unit, pushbutton and switch, and an amber lamp.
         In the rear cockpit are a Zero reader indicator, I.L.S. indi-
         cator, flight computer and repeater.


    COCKPIT EQUIPMENT
    
    26.  Cockpit entry
    
         Footsteps and handholds on the port side of the front
         fuselage give access to both cockpits.  Retractable foot-
         steps are lowered by pulling their external handles and are
         retracted by a control just forward of the front footstep.
         They can only be operated from outside the aircraft.

22

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