| C-121/R7O/R7V Constellation | |
|---|---|
| |
| A Military Air Transport Service C-121G Super Constellation flying near the Golden Gate Bridge. | |
| Role | Military transport |
| National origin | United States |
| Manufacturer | Lockheed Corporation |
| First flight | March 14, 1947 |
| Introduction | November 12, 1948 |
| Status | Retired from military service, two operated by civilian preservation organisations |
| Primary user | United States Air Force United States Navy |
| Produced | 1947 to 1958 |
| Number built | 332 |
| Developed from | L-749 Constellation L-1049 Super Constellation |
| Variants | R7V-2/YC-121F Constellation EC-121 Warning Star |
The Lockheed C-121 Constellation is a military transport version of the Lockheed Constellation. A total of 332 aircraft were constructed for both the United States Air Force and United States Navy for various purposes. Numerous airborne early warning versions were also constructed. The C-121 later saw service with smaller civilian operators until 1993.