Comparison of Lockheed EC-121 Warning Star and Vickers Valiant [S]ave
| Attribute |  Vickers Valiant × |  Lockheed EC-121 Warning Star × |
|---|---|---|
| General | ||
| Manufacturer | Vickers-Armstrongs | Lockheed Martin Aeronautics |
| Model | Vickers Valiant | Lockheed EC-121 Warning Star |
| Country | United Kingdom | United States |
| Manufactured from (year) | 1951 | 1953 |
| Manufactured to (year) | 1957 | 1958 |
| Type | Military Aircraft | Military Propellor Planes |
| Icao | - | EC121 |
| Performance | ||
| Engine | Rolls-Royce Avon RA28 Mk 204 | 4x Wright R-3350-34 Turbo Compound radial engines other |
| Power, hp (hp) | - | 3,400 |
| Power, lbf (lbf) | 10,000 | - |
| Avionics | GE Aviation Systems, Green Satin doppler radar, Gee radio navigation, (ADF), VOR/Distance Measuring Equipment (DME) | - |
| Max cruise speed (km/h) | 913 | 482 |
| Travel range (km) | 7,223 | 6,852 |
| Service ceiling (m) | 16,459 | 7,620 |
| Rate of climb (m/sec) | 20.32 | 4.88 |
| Weights | ||
| Max take off weight (kg) | 63,500 | 65,000 |
| Max payload (kg) | 29,000 | 33,600 |
| Dimensions | ||
| Seats | 5 | 16 |
| 1↑Exterior length (m) | 33 | 35.4 |
| Tail height (m) | 9.8 | 7.54 |
| Fuselage diameter (m) | 3.3 | 3.5 |
| Wing span (m) | 34.8 | 38.45 |
| Wing tips | No Winglets | No Winglets |
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