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Aviation History
1940
1940 - 1111.PDF
APRIL 18, 1940 349 gently to complete the loop. The rudder, of course, should be used to keep the aircraft straight. A roll off the top of a loop should be started at 240 m.p.h. I.A.S. The same remarks apply as for loop during the initial stages. As the aircraft reaches the top of the loop ease the control column forward to the central position and hard over to one side. Stop the nose from dropping by use of rudder. It is claimed that the Master slow rolls beautifully at any speed in excess of 160 m.p.h. I.A.S.; a climbing roll is executed at any speed over 220 m.p.h. I.A.S. It is recommended that only climbing half-rolls should be carried out owing to the height lost after rolling over into the inverted position. The Master must be forced into a spin, for it will not go into one unless both controls are crossed. If the rudder is held central the aircraft will not spin. The best way of entering a spin is from a slow gliding turn with the nose of the aircraft well up. As the aircraft approaches the stall, fullrudder should be applied on the inside of the turn and the control columnpulled hard back. In the first half-turn of the spin theaircraft rolls on to its back, the nose falls and by the end of the first turnrises again above the horizon. During succeeding turns the nose graduallyfalls and the spin gets steeper and smoother. The spin is fully established by the end of thethird turn. The angle of spin then remains constant at about 45 deg. to the horizon. The rate of rotation is slowand recovery is easy and straightforward. The instructions proceed: "To recover, apply full anti-spin rudder and ease the control column forward to the central position, but not farther forward because theelevators then tend to blank off the under surfaces of the rudder. As soon as rotation ceases, centralise the rudderand ease the airciaft out of the resultant dive. It is neces- sary to be quick centralising the rudder after rotation ceasesin order to prevent the aircraft from going into the opposite spin. Should it do so, keep the control column still andapply full anti-spin rudder. Recovery is normal, although ™e spin produced is faster than a normal stick-back spin.~i f overy from a left-hand spin takes about three-quarters 01 a turn longer than that from a right-hand spin. will be noticed that considerable pressure is neces- STARBOARD SIDE OF COCKPIT.1, Stowage for Gun Reflector Sight Lamps ; z, Cockpit Lamp ; 3, Fire Extin- guisher Bayonet Connection ; 4, Fuel Cock Control ; 5, Signal Pistol inMounting ; 6, Cine-camera Gun Footage Indicator Mounting ; 7, Navigation Lamps Switch ; 8, Cine-camera Gun Switch ; o, Pitot Head Heating Switch ; 10,Fuse Boxes ; n, Fuel System Priming Lever ; 12, Rudder Bar Adjustment Lever ; 13, Seat-operating Handle and Locking Plunger ; 14, Safety HarnessRelease Gear ; 15, Voltmeter ; 16, Charge-regulating Switch ; 17, Ammeter ; 18, Fuse Boxes ; 19, Fuse Boxes ; 20, Resistance Unit ; 21, AccumulatorCut-out ; 22, Relay Switch ; 23, Relay Switch ; 24, Stowage for Signal Pistol Cartridges ; 25, Emergency Door Handle ; 26, Starting Handle Stowage. sary to keep on full rudder in the spin, but that whenapplying full opposite rudder to recover from a left-hand spin the rudder has little effect for the first three-quartersof a turn, and then suddenly gets very powerful when recovery is almost instantaneous. In the right-hand spin,however, the rudder is immediately effective when applied ' anti-spin' and recovery is abnormally quick. Althoughthe total height lost from entry to fully out of an eight-turn spin is only 5,500ft., it is recom-mended that spinning instruction should not be given under io,oooft." CONTROL BOX.1, Undercarriage Selector Lever ; 2, Haps Selector Lever ; 3, Landing Lamps Control Lever ; 4, RudderTrimming Tab Control ; 4a, Rudder Trimming Tab Indicator ; 5, Elevator Trimming Tabs Control ;5a, Elevator Trimming Tabs Indicator ; 6, Throttle Control Lever and Bomb Firing Switch ; 7, MixtureControl Lever ; 8, Airscrew Pitch Control Lever ; 9, Engine Controls Friction Adjuster ; 10, BoostControl Cut-out ; 11, Landing Lamps Control Friction Adjuster.
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