PART IV-EMERGENCY HANDLING

A.L.4/58    2.   At best gliding speed the aircraft will cover
                 approximately 2 miles per 1,000 ft.
            3.   With normal services running the battery cannot
                 be relied on for more than approx. 5 minutes.
                 All non-essential services including booster
                 pumps should therefore be switched off to con-
                 serve battery power.
            4.   Descending rapidly at a speed above 200 knots
                 will increase windmilling r.p.m.  Consequently
                 hydraulic pressure will be higher and the
                 generators may continue to supply power.

     (c)  Relighting
          NOTE:- This drill applies irrespective of the position
                 of the jet pipe eyelids. Relights are obtained
                 more easily at lower altitudes and with lower air-
                 speeds. Every precaution should be taken to
                 ensure success at the first attempt due to the
                 loads on the battery. If the engine and its fuel
                 system are serviceable and the drill is followed
                 correctly, a relight should occur at the first
                 attempt.

          (i)  Check and/or set:-

               Maximum altitude		35,000 ft.
               Maximum airspeed		200 knots above 25,000 ft.
					  0.80M below 25,000 ft.
               All non-essential	OFF (See para. 89(b)).
                 electrics
               Throttle			Closed.
               Battery master switch	ON.
A.L.1/57       Ignition circuit breaker		IN.
               Starter master switch	ON.
               Fuel master switch	ON.
               Furl override switch	NORMAL (but TAKE-OFF
					  if low pressure warning is
					  white).
A.L.3/57       Reheat L.P. cock		Closed

         (ii)  Press the relight button and al the same time open
               the H.P. cock fully, keeping the relight button
               pressed until the engine lights up and r.p.m. rise by
               about 200.  R.p.m. should commence to rise almost
               immediately. When the r.p.m. rise to idling, increase
               power carefully.

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