de Havilland Vampire T11 vamp11pic074

                 PART Vi-OPERATING DATA

                       WITH DROP TANKS

           FUEL CONTENTS ..  4,080 lb. AVTAG (7.7 lb./gall.)
			     4,240 lb. AVTUR (8 lb./gall.)

           START-UP, TAXY AND TAKE-OFF
             ALLOWANCE ..	..  ..	..  230 lb.

           LANDING ALLOWANCE  ..  ..   ..   460 lb.
            (excluding descent fuel)

                         CLIME DATA




		From
		To
		  Fuel
lb.
		   Dist.
(N.M.)
		  Time
(Mins.)




		Sea Level      ..      ..
		10,000 ft.
		440
		10
		5
						


		20,000 ft.
		750
		40
		10
				


		30,000 ft.
		960
		80
		19½



		35,000 ft.
		1,170
		120
		27½



		10,000 ft.      ..      ..
		20,000 ft.
		310
		30
		5
		


		30,000 ft.
		520
		70
		14½
				


		35,000 ft.
		730
		110
		22½



		20,000 ft.      ..      ..
		30,000 ft.
		210
		40
		9½
		


		35,000 ft.
		420
		80
		17½



		30,000 ft.      ..      ..
		35,000 ft.
		210
		40
		8
	


		Fuel and time figures are from start-up and wheels rolling respec-
tively.
Climb at 10,600 Max. r.p.m. to 10,560 10,350 above 25000 ft.




                       DESCENT DATA




		From
		To
		lb.
		Dist.
		Mins.




		35,000 ft.      ..      ..
		30,000 ft.
		23
		10
		2
						


		20,000 ft.
		53
		30
		6
				


		10,000 ft.
		114
		55
		9



		Sea Level
		177
		70
		13



		30,000 ft.      ..      ..
		20,000 ft.
		30
		20
		4
		


		10,000 ft.
		91
		45
		7
				


		Sea Level
		154
		60
		11



		20,000 ft.      ..      ..
		10,000 ft.
		61
		25
		3
		


		Sea Level
		124
		40
		7



		10,000 ft.      ..      ..
		Sea Level
		63
		15
		4
	


		                   AIRBRAKES        ..        ..        IN
                   THROTTLE         ..          ..      CLOSED
                   SPEED     ;..         ..          ..      0.65M above 25.000 ft.
                                                                     250K below 25,000 ft.