PART IV-EMERGENCY HANDLING

     89.  Forced landing

          NOTE:-1.  Unless the proposed landing area is known t0
A.L.3/57            be suitable in all respects (e.g. 3,000 yards of
                    runway) it is recommended that the aircraft is
                    abandoned.

                2.  The minimum height/airspeed combination
                    for safe ejection in straight and level flight is 
                    100 ft./120 knots.

     (a)  The engine, unless it is damaged, will windmill at
          sufficient r.p.m. to provide power for the flying controls.
          but excessive and coarse control movements must be
          avoided to prevent using hydraulic pressure more rapidly
          than the pump can replace it.

     (b)  With a windmilling engine (1,800 r.p.m. at 200 knots),
          the generator r.p.m. are too low to provide power for all
          the electrical services. There will therefore be some drain
          on the batteries. Switch off all unnecessary electrical
          services.

     (c)  If committed to a forced landing on the airfield without
          power the recommended procedure is as follows:-
          (i)  Jettison the belly tank (if fitted) and the hood.
         (ii)  The best range gliding speed for the clean aircraft
               is 200 knots.
-------------------------------------------------------------------
A.L.3              (iii)    Aim to be over the airfield at 6,000 ft. (7,000 ft. in
Para 89                    Manual) and downwind opposite the caravan at
(c) (iii)-(v)                4,000 ft. (4,500 ft. in Manual) A.G.L.
Page 78         (iv)    Maintain 200 knots until the turn on to the final
                            approach has been completed.
                    (v)    The final approach should be made at 190 knots.
                            When it is certain that there is no possibility of
                            undershooting or overshooting, the power controls
                            should be set to off and emergency undercarriage and
                            flap selected.
------------------------------------------------------------------

     90.  Belly tank jettisoning

          The belly tank mechanical release is operated by pulling
          up the jettison handle, on the port shelf. A nose-down
          pitch is apparent when jettison takes place. It is therefore
          recommended that a slight nose-up attitude is adopted
          before jettisoning at very low altitude. Belly tank jettison
          tests have been carried out between 180 and 550 knots.

78