A.L.1                      PART III - HANDLING
Para. 79 (b)
Page 78
               (b)  Braking
     
                     NOTE.-The effectiveness of the braking system is greaty decreased
                           on very wet or icy runways.  If wind conditions are favourable
                           it may be advantageous to use aerodynamic braking.
                           
                     When the nosewheel has been lowered on to the runway the brakes
                     can be used continuously and the maxeret units will prevent wheel lock-
                     ing; however, to prolong the efficiency and life of the brakes brak-
                     ing should be judicious according to length of landing run available.
                     The landing can be cut to less than half normal by using continuous
                     full brake once the aircraft is firmly on the ground, but this procedure
                     causes rapid brake and tyre wear and should not normally be used.
                     The aircraft must be firmly on the ground before applying the brakes.
                     If it is allowed to touch down with the brakes on, the maxeret units
                     will not operate and the wheels will lock; however, if once having
                     started turning the wheels should stop because of skid or bounce,
                     they will not lock unless the skid or bounce continues for more than
                     4 seconds.  After a landing involving heavy braking, ten minutes
                     should elapse before the next landing.  If the intervening period of
                     taxying has also required prolonged use of the brakes, twenty minutes
                     should elapse before the next landing.  Observe the same precautions
                     in brake tests.  On wet runways the landing run may be decreased by
                     lowering the nosewheel on to the runway, applying the brakes and
                     pulling the control column right back.  The brakes must be in use
                     while the back pressure is applied.
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      (c)  Cross-wind landing
               
           For cross-wind landings the "crab" technique should
           be used.  In light winds no difficulty should be exper-
           enced in touching down but in strong cross-winds full
           rudder may be required to correct the crabbing.  The
           rudder has a delayed reaction which will require anti-
           cipation.  The secondary effect of full rudder is to pro-
           duce a marked roll which must be counteracted with
           aileron.  When the crabbing has been corrected the air-
           craft should be flown gently on to the ground and the
           nosewheel then lowered on immediately, thus reducing
           the tendency for the cross-wind to lift the into-wind wing.
           Care should be taken to centralize the rudder before
           applying brake.  If the cross-wind is gusting strongly the
           approach speed should be increased by 5 knots.
           
       80. Instrument approach
       
           The following are the recommended airspeed, power and
           flap settings for an instrument approach with the under-
           carriage lowered:-            

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