Lockheed L-1249 Super Constellation

L-1249 Super Constellation R7V-2/YC-121F Constellation
Lockheed R7V-2
Role	Experimental military transport Type of aircraft
National origin	United States
Manufacturer	Lockheed
Designer	Clarence "Kelly" Johnson
First flight	1 September 1954
Introduction	10 September 1954 (Navy) July 1955 (Air Force)
Status	Retired
Primary user	United States Navy United States Air Force
Produced	1954 and 1955 respectively
Number built	4
Developed from	C-121 Constellation L-1049 Super Constellation

The Lockheed L-1249 Super Constellation was a turboprop-powered version of the Lockheed Constellation aircraft family. Built in 1954 and 1955, the aircraft were used as prototypes for possible future military transport aircraft for both the United States Air Force and United States Navy. Both aircraft saw very short lives and the airframes were later used to build L-1049 Super Constellations.