Comet Comparisons
| Comet 1 | Boeing 777-200 | Boeing 747-400 | |
| Length | 28.3 m (93’0″) |
63.73 m (209’1″) |
70.66 m (231’10”) |
| Wingspan | 35.1 m (115’0″) |
60.93 m (199’11”) |
64.92 m (213′) |
| Engines | 4 de Havilland Ghost | 2 Rolls-Royce Trent 800 | 4 Rolls-Royce RB211-524 GT |
| Total Thrust | 89 kN (20,000 lbst) |
925 kN (208,000 lbst) |
1080 kN (242,696 lbst) |
| Cruising Speed | 764 km/h (475 mph) |
987 km/h (557 mph) |
940 km/h (584 mph) |
| Cruise Altitude | 10.7 km (40,000 feet) |
10.7 km (40,000 feet) |
10.7 km (40,000 feet) |
| Range | 2815 km (1750 miles) |
7505 km (4660 miles) |
13,278 km (8245 miles) |
| Payload | 5450 kg (12,000 lb) |
109,116 kg (240,600 lb) |
215,374 kg (474,900 lb) |
| Weight Empty | 31,750 kg (70,000 lb) |
135,580 kg (298,900 lb) |
181,985 kg (399,000 lb) |
| Max Take Off Weight | 52,000 kg (115,000 lb) |
229,520 kg (506,000 lb) |
391,500 kg (870,000 lb) |
| Passengers | 36 – 44 | 305 – 328 | 421 |
| Flight Crew | 4 | 2 | 2 |