Lockheed L-749 Constellation

L-749 Constellation
A Trans World Airlines L-749A at London's Heathrow Airport. Note the "Speedpak" removable freight container beneath the fuselage.
Role Airliner
National origin United States
Manufacturer Lockheed Corporation
First flight March 14, 1947
Introduction April 18, 1947
Retired 1993
Primary users Trans World Airlines
Air France
KLM
Eastern Air Lines
Produced 1947–1951
Number built 119
Developed from Lockheed L-649 Constellation
Variants Lockheed C-121 Constellation
Lockheed PO-1W/WV-1 Constellation
Developed into Lockheed L-1049 Super Constellation

The Lockheed L-749 Constellation is the first Lockheed Constellation to regularly cross the Atlantic Ocean non-stop. Although similar in appearance to the L-649 before it, the L-749 had a larger fuel capacity, strengthened landing gear, and eventually weather radar.