Comparison of Boeing B-29 Superfortress and Lockheed L-749 Constellation [S]ave
| Attribute |  Boeing B-29 Superfortress × |  Lockheed L-749 Constellation × |
|---|---|---|
| General | ||
| Manufacturer | Boeing | Lockheed Martin Aeronautics |
| Model | Boeing B-29 Superfortress | Lockheed L-749 Constellation |
| Country | United States | United States |
| Manufactured from (year) | 1943 | 1947 |
| Manufactured to (year) | 1946 | 1951 |
| Type | Military Propellor Planes | Passenger Turbo Props |
| Icao | B29 | L749 |
| Performance | ||
| Engine | 4x Wright R-3350-23 Duplex-Cyclone | 4x Wright R-3350-749C18BD-1 Duplex-Cyclone |
| Power, hp (hp) | 2,200 | 2,500 |
| Max cruise speed (km/h) | 587 | 556 |
| Approach speed (km/h) | 169 | - |
| Travel range (km) | 9,382 | 8,040 |
| Service ceiling (m) | 9,708 | 7,346 |
| Rate of climb (m/sec) | 4.57 | 5.79 |
| Take off distance (m) | - | 1,402 |
| Landing distance (m) | - | 1,082 |
| Weights | ||
| Max take off weight (kg) | 61,000 | 48,534 |
| Max payload (kg) | 10,000 | 9,195 |
| Fuel tank capacity (l) | 36,143 | 23,640 |
| Dimensions | ||
| Seats | 11 | 89 |
| Exterior length (m) | 30.18 | 29.67 |
| Tail height (m) | 8.46 | 6.83 |
| Fuselage diameter (m) | 2.9 | 3.4 |
| Wing span (m) | 43.05 | 37 |
| Wing tips | No Winglets | No Winglets |
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