Lockheed R6V Constitution
| R6V Constitution | |
|---|---|
| The first XR6O-1 Constitution in flight | |
| General information | |
| Type | Transport aircraft |
| Manufacturer | Lockheed |
| Primary user | U.S. Navy |
| Number built | 2 |
| History | |
| First flight | 9 November 1946 |
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The Lockheed R6V Constitution was a large, propeller-driven, double-decker transport aircraft developed in the 1940s by Lockheed as a long-range, high-capacity transport and airliner for the U.S. Navy and Pan American Airways. Only two of the aircraft were ever built, both prototypes. Although these two planes went into service with the Navy, the Constitution design ultimately proved underpowered and too large for practical airline use at the time. Although the Martin JRM Mars flying boat had a slightly longer wingspan, the Constitution remains the largest fixed-wing aircraft type ever operated by the U.S. Navy.