page_title: List of Lockheed Constellation variants
section_title: Civilian / Company designations
hierarchical_section_title: List of Lockheed Constellation variants / Civilian / Company designations
caption_attribution_description: A Trans World Airlines Lockheed L-1649 Starliner (civil registration N7301C) in flight in the late 1950s or the early 1960s, during a test flight. Note the flight test pitot boom attached to the right wingtip. This aircraft was written off after an accident at Bogotá-Eldorado Airport, Colombia, on 18 December 1966, while in service with Aerocondor de Colombia. 17 of 59 passengers and crew were killed.
context_page_description: The Lockheed Constellation was an American civil airliner and military transport built in the 1940s and 1950s; this is a list of its variants.
context_section_description: L-049
  The L-049 was the original commercial airliner produced, although some earlier L-049s were begun as military transports and completed as airliners. L-649 aircraft followed, with more powerful engines, but all were soon upgraded to L-749 standard with long-range fuel tanks.  88 L-049, 14 L-649, and 131 L-749 were built, including conversions from earlier models and military versions. First 22 aircraft delivered as C-69 transports, first flight 9 January 1943
  L-149
  L-049 conversion to include extra wing fuel tanks for a longer range. Production versions were planned for Pan Am, but none were ever produced.
  L-249
  Company designation for the XB-30 bomber. Project cancelled in favor of the Boeing B-29.
  L-349
  Company designation for the C-69B. None built.
  L-449
  Unknown proposed civilian airliner version.
  L-549
  Company designation for the C-69C. One built.
  L-649
  R-3350-749C18BD engines with 2,500 hp (1,865 kW) each, seating for up to 81, first flight 19 October 1946
  L-649A
  Reinforced landing gear and fuselage
  L-749
  6,145 US gal (23,640 l) of fuel providing the capability for non-stop transatlantic flights, first flight 14 March 1947
  L-749A
  Reinforced landing gear and fuselage
  L-749B
  Turbine powered. Project cancelled due to the absence of a suitable powerplant.
  L-849
  Planned version of the L-749, which would have had Wright R-3350 TurboCompounds.
  L-949
  Speedfreighter combi version of the L-849 with an 18 ft 4in fuselage stretch.
  L-1049
  First production version, 24 built. An 18 ft 4 in (5.59 m) stretched version with a maximum capacity of 109 passengers, square windows; all 1049C and later models had Turbo-Compound engines. Some later models had optional tip tanks. First flight 14 July 1951.  579 built, including military versions.
  L-1049A
  Company designation for the WV-2, WV-3, EC-121D and RC-121D.
  L-1049B
  Company designation for the R7V-1, RC-121C and VC-121E.
  L-1049C
  Civil variant of the 1049B for 110 passengers with four R-3350-87ТС18DA-1 Turbo-compound engines with 3,250 hp (2,425 kW) each, 48 built
  L-1049D
  Freight version of L-1049B with wing and fuselage modifications and a large cargo door, four built
  L-1049E
  Passenger variant of the 1049D, 28 built
  L-1049F
  Company designation for the C-121C.
  L-1049G
  Advanced variant with four R-3350-972ТС18DA-3 engines with higher METO power, ability to carry wingtip fuel tanks, 102 built
  L-1049H
  Passenger/freight convertible version of L-1049G with large cargo door, 53 built
  L-1049J
  Planned L-1049G with the wings of the R7V-2.
  L-1149
  A planned Allison turboprop version of the L-1049G and L-1049H.
  L-1249A
  Company designation for the R7V-2 and YC-121F.
  L-1249B
  Planned turboprop passenger version of the R7V-2/YC-121F.
  L-1349 unidentified. Dominique Breffort's book claims no design with the L-1349 designation ever existed, possibly due to superstitious belief reasons.
  L-1449
  Proposed turboprop version of the L-1049G with a stretched fuselage and new wing.
  L-1549
  Planned stretched version of the L-1449.
  L-1649A Starliner
  Production version, R-3350-988TC18EA-2 Turbo Cyclone engines with 3,400 hp (2,536 kW) each. Long-range passenger aircraft designed to compete with Douglas DC-7C. The standard radome for the weather radar extends total length by 2 ft 7 in (0.78 m) over L-1049 without radome. New thin-section wing with a straight taper, and much larger fuel capacity giving a ferry range of over 6,880 mi (11,080 km), first flight 10 October 1956. 44, including the prototype, were built.
  L-1649B
  Planned turboprop version of the L-1649A.
  L-051
  Original company designation for the XB-30 project.
  L-084
  The XW2V-1 was a planned radar version of the WV-2 with the Starliner's wings for the US Navy. It would have included four Allison T56-A8 engines and missiles for protection against attackers. Considerably different from its predecessors, given the production designation Lockheed L-084.
caption: A TWA L-1649 Starliner
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