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The Lockheed EC-121 Warning Star is an American airborne early warning and control radar surveillance aircraft operational in the 1950s in both the United States Navy (USN) and United States Air Force (USAF).
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aircraft air warning force usaf ec-121s ec-121 radar early squadron usn one also airborne nas museum 1967 display two used
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Lockheed EC-121 Warning Star | Developed from | L-749 Constellation L-1049 Super Constellation C-121 Constellation | 1.00 | infobox |
| Lockheed EC-121 Warning Star | First flight | 9 June 1949 | 1.00 | infobox |
| Lockheed EC-121 Warning Star | Introduction date | 1954 | 1.00 | infobox |
| Lockheed EC-121 Warning Star | Manufactured | 1953–1958 | 1.00 | infobox |
| Lockheed EC-121 Warning Star | Manufacturer | Lockheed Corporation | 1.00 | infobox |
| Lockheed EC-121 Warning Star | National origin | United States | 1.00 | infobox |
| Lockheed EC-121 Warning Star | Number built | 232 | 1.00 | infobox |
| Lockheed EC-121 Warning Star | Primary user | United States Navy, United States Air Force | 1.00 | infobox |
| Lockheed EC-121 Warning Star | Retired | 1978 (USAF) 1982 (USN) | 1.00 | infobox |
| Lockheed EC-121 Warning Star | Type | Airborne early warning and control | 1.00 | infobox |
| Lockheed EC-121 Warning Star | is a | American airborne early warning and control radar surveillance aircraft operational in the 1950s in both the United States Navy | 0.90 | text |
| mountains | instance of | spurious signal returns off of terrain features | 0.80 | text |
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