Comet 4 Checklists
Panel Manual VC extras Checklists Flying Tips
Speeds Checklists Limits
Speed Limits
Airspeed IAS (VMO): 330 kts   (342 kts Comet 4B)
Mach number (MMO): 0.8
Max IAS for lowering or raising landing gear: 254 kts
Max IAS with landing gear down: VMO
Max IAS with flaps
20 deg:
30 deg:
40 deg:
60 deg		 220 kts
200 kts
180 kts
160 kts
Max altitude for flap extension: 20,000 ft  except in emergency

Max crosswind component
Takeoff:
Landing:


28 kts
28 kts
Max for emergency descent: MMO/VMO
Turbulence speeds
Climb, cruise & descent:
260 kts to 30,000 ft, Mach 0.7 above this
Max IAS for screen wipers: 250 kts
Max speed for air brakes: No limit.
Altitude Limits
Max operating altitude: 40,000 ft   (32,000 ft Comet 4B)
Max altitude for flap extension: 20,000 ft  except in emergency
Weight Limits
Max takeoff Comet 4:
  Comet 4B:
  Comet 4C:
68,946 kg  (152,000 lb)
71,668 kg  (158,000 lb)
73,482 kg  (162,000 lb)
Max landing: 54,431 kg  (120,000 lb)
Empty Comet 4:
  Comet 4B:
  Comet 4C:
34,212 kg  (75,424 lb)
35,545 kg  (78,363 lb)
35,995 kg  (79,355 lb)
Max fuel Comet 4:
  Comet 4B:
  Comet 4C:
32,477 kg  (71,600 lb)
28,576 kg  (63,000 lb)
32,477 kg  (71,600 lb)
Max payload Comet 4:
  Comet 4B:
  Comet 4C:
9,203 kg  (20,290 lb)
10,948 kg  (24,137 lb)
11,162 kg  (24,610 lb)
Range Limits
Max payload Comet 4:
  Comet 4B:
  Comet 4C:
2,800 nm
2,260 nm
2,450 nm

Range figures are in still air, using long range cruise techniques & no fuel reserves

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