Boeing B-29 Superfortress vs Lockheed Super Constellation
Top speed, range, size and history side by side. Each was built for its own job, so this shows how they differ, not which is better.
The Boeing B-29 Superfortress is faster: 574 km/h against 530 km/h for the Lockheed Super Constellation. The Lockheed Super Constellation flies further: 8,700 km against 5,230 km for the Boeing B-29 Superfortress. The Boeing B-29 Superfortress has the wider wingspan: 43.1 m against 37.5 m for the Lockheed Super Constellation. The Lockheed Super Constellation is heavier at takeoff: 62 tonnes against 61 tonnes for the Boeing B-29 Superfortress. The Boeing B-29 Superfortress first flew in 1942, 8 years before the Lockheed Super Constellation (1950).
| Boeing B-29 Superfortress | Lockheed Super Constellation |
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| Top speed | 574 km/h (357 mph) | 530 km/h (329 mph) |
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| Range | 5,230 km (3,250 miles) | 8,700 km (5,406 miles) |
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| Length | 30.2 m (99 ft) | 35.4 m (116 ft) |
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| Wingspan | 43.1 m (141 ft) | 37.5 m (123 ft) |
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| Max takeoff weight | 61 t (133,511 lb) | 62 t (136,685 lb) |
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| First flight | 1942 | 1950 |
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| Crew and capacity | 11 crew | Up to 95 passengers |
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| Engines | 4 × Wright R-3350 radial | 4 × Wright R-3350 radial |
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| Built by | Boeing | Lockheed |
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| Country | USA | USA |
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