PART I-DESCRIPTIVE

                 level flight, the instrument will show a false indication of
                 level flight.
                     (iv)  Tachometer
A.L.2                            The r.p.m. indicator (26) is graduated in percentages, 100% represent-
Para.                             ing maximum permissible power (7,950 r.p.m.).
27(iv) and             (v)     Compasses
(v) and 28 	                   (a)   A gyro-magnetic compass is fitted in the centre of the instru-
Page 23                                 ment panel.  On some aircraft, fast slaving of the compass
                                           is accomplished by pressing a pushbutton located on the
                                           instrument panel.  This enables the pilot to obtain a com-
                        |                  pass heading quickly after any manoeuvre or attitude that
                        |                  has toppled the gyro.
                                    (b)   A stand-by magnetic compass (24) is fitted above the right
                                           side of the instrument panel.

                           28.    Flying controls locking gear

                                    A rudder control lock is built into the centre of the instrument
                                    panel.  When the handle (117) is pulled aft, a rudder cable lock
                                    is set to engage when the rudder pedals are centralised.  The
                                    nosewheel steering cable is locked at the same time.  The other
                                    surfaces, being hydraulically driven, are irreversible and do
                                    not require a lock.

                      GENERAL EQUIPMENT AND
                      CONTROLS

                      29.  Hood operation
                       (i)  The electrically-operated hood may be controlled either
                            from inside by a three-position toggle switch (53) above the
                            left forward console, or from outside by spring-loaded
                            pushbuttons mounted two on each side of the fuselage in
                            line with the windscreen.
                       (ii) To close the hood from the inside, the toggle switch must be
                            held at the spring-loaded CLOSE position.  The switch
                            will remain in the OPEN position without being held;
                            however, when the hood has fully opened, the power is
                            automatically cut off.  The hood is locked, whether
                            partially open, fully open or closed when the switch is
                            OFF.  The switch when held to CLOSE causes the hood
                            seal to deflate.  This must therefore not be done in flight
                            as it will result in loss of cockpit pressure.  The hood
                            must not be operated at speeds above 215 knots.
                       (iii)The external buttons are marked OPEN and CLOSE.
                            Operation of either button overrides the cockpit switch
                            but if the latter is left at OPEN, and the external button
                            used for closing, the hood will re-open as soon as the
                            button is released.
                       (iv) An internal manual handle (95) is provided on the right
                            of the hood bow for pulling the hood open if it cannot be
                            opened electrically.  The declutch handle (111) at the

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