Lockheed Constellation

Constellation
A USAF C-69, the military version of the Constellation
Role Airliner and transport
Manufacturer Lockheed
First flight January 9, 1943
Introduction 1943 with USAAF
1945 with TWA
Retired 1990s, airline service
1978, military
Status In very limited service
Primary users Trans World Airlines
Eastern Air Lines
Pan American World Airways
Air France
Produced 1943–1958
Number built 856
Developed from L-044 Excalibur
Variants L-049 Constellation
C-69 Constellation
L-649 Constellation
L-749 Constellation
L-1049 Super Constellation
C-121/R7V Constellation
R7V-2/YC-121F Constellation
EC-121 Warning Star
L-1649A Starliner
Developed into Lockheed XB-30 (Unbuilt)

The Lockheed Constellation ("Connie") was a propeller-driven, four-engined airliner built by Lockheed Corporation between 1943 and 1958 at Burbank, California. Lockheed built 856 in numerous models—all with the same triple-tail design and dolphin-shaped fuselage. Most were powered by four 18-cylinder Wright R-3350 Duplex-Cyclones. The Constellation was used as a civil airliner and as a military and civilian air transport, seeing service in the Berlin and the Biafran airlifts. Three of them served as the presidential aircraft for Dwight D. Eisenhower.

Design and development

Initial studies

Lockheed had been working on the L-044 Excalibur, a four-engine, pressurized airliner, since 1937. In 1939, Trans World Airlines, at the instigation of major stockholder Howard Hughes, requested a 40-passenger transcontinental airliner with a range of 3,500 mi (5,630 km)[1]—well beyond the capabilities of the Excalibur design. TWA's requirements led to the L-049 Constellation, designed by Lockheed engineers including Kelly Johnson and Hall Hibbard.[2] Willis Hawkins, another Lockheed engineer, maintains that the Excalibur program was purely a cover for the Constellation.[3]

A preserved C-121C Super Constellation, registration N73544, in flight in 2004

Development of the Constellation

The Constellation's wing design was close to that of the P-38 Lightning, differing mostly in size.[4] The triple tail kept the aircraft's height low enough to fit in existing hangars,[3] while features included hydraulically boosted controls and a de-icing system used on wing and tail leading edges.[1] The aircraft had a maximum speed of over 375 mph (600 km/h), faster than that of a Japanese Zero fighter, a cruise speed of 340 mph (550 km/h), and a service ceiling of 24,000 ft (7,300 m).[5]

According to Anthony Sampson in Empires of the Sky, Lockheed may have undertaken the intricate design, but Hughes' intercession in the design process drove the concept, shape, capabilities, appearance, and ethos.[6] These rumors were discredited by Johnson. Howard Hughes and Jack Frye confirmed that the rumors were not true in a letter in November 1941.[7]

The famous 1953-54 Studebaker coupe, considered by some one of the most beautiful American automobile designs, was inspired in part by the design of the Constellation, according to its principal designer, Robert Bourke.

Operational history

World War II

The first Lockheed Constellation on January 9, 1943

With the onset of World War II, the TWA aircraft entering production were converted to an order for C-69 Constellation military transport aircraft, with 202 aircraft intended for the United States Army Air Forces (USAAF). The first prototype (civil registration NX25600) flew on January 9, 1943, a short ferry hop from Burbank to Muroc Field for testing.[1] Edmund T. "Eddie" Allen, on loan from Boeing, flew left seat, with Lockheed's own Milo Burcham as copilot. Rudy Thoren and Kelly Johnson were also on board.

Lockheed proposed the model L-249 as a long-range bomber. It received the military designation XB-30, but the aircraft was not developed. A plan for a very long-range troop transport, the C-69B (L-349, ordered by Pan Am in 1940 as the L-149),[8] was canceled. A single C-69C (L-549), a 43-seat VIP transport, was built in 1945 at the Lockheed-Burbank plant.

The C-69 was mostly used as a high-speed, long-distance troop transport during the war.[9] A total of 22 C-69s were completed before the end of hostilities, but not all of these entered military service. The USAAF cancelled the remainder of the order in 1945. However, some aircraft remained in USAF service into the 1960s, serving as passenger ferries for the airline that relocated military personnel, and carrying the livery of the Military Air Transport Service. At least one of these airplanes had passenger seats installed backward, with occupants facing toward the rear of the direction of travel during flight.

Postwar use

TWA L-749A Constellation at Heathrow in 1954 with an under fuselage "Speedpack" freight container
Super Constellation (C-121C) during pilot training in Epinal - Mirecourt, France

After World War II, the Constellation came into its own as a fast civilian airliner. Aircraft already in production for the USAAF as C-69 transports were finished as civilian airliners, with TWA receiving the first on 1 October 1945. TWA's first transatlantic proving flight departed Washington, DC, on December 3, 1945, arriving in Paris on December 4 via Gander and Shannon.[1]

TWA transatlantic service started on February 6, 1946 with a New York-Paris flight in a Constellation. On June 17, 1947, Pan American World Airways (Pan Am) opened the first-ever scheduled round-the-world service with their L-749 Clipper America. The famous flight "Pan Am 1" operated until 1982.

As the first pressurized airliner in widespread use, the Constellation helped to usher in affordable and comfortable air travel. Operators of Constellations included TWA, Eastern Air Lines, Pan Am, Air France, BOAC, KLM, Qantas, Lufthansa, Iberia Airlines, Panair do Brasil, TAP Portugal, Trans-Canada Air Lines (later renamed Air Canada), Aer Lingus, VARIG, Cubana de Aviación, and Línea Aeropostal Venezolana.

Records

Sleek and powerful, Constellations set a number of records. On April 17, 1944, the second production C-69, piloted by Howard Hughes and TWA president Jack Frye, flew from Burbank, California, to Washington, DC, in 6 hours and 57 minutes (about 2,300 miles (3,700 km) at an average 331 miles per hour (533 km/h)). On the return trip, the aircraft stopped at Wright Field to give Orville Wright his last flight, more than 40 years after his historic first flight. He commented that the Constellation's wingspan was longer than the distance of his first flight.[2]

On September 29, 1957, a TWA L-1649A flew from Los Angeles to London in 18 hours and 32 minutes (about 5,420 miles (8,720 km) at 292 miles per hour (470 km/h)). The L-1649A holds the record for the longest-duration, non-stop passenger flight aboard a piston-powered airliner. On TWA's first London-to-San Francisco flight on October 1–2, 1957, the aircraft stayed aloft for 23 hours and 19 minutes (about 5,350 miles (8,610 km) at 229 miles per hour (369 km/h)).

Obsolescence

L-1049H freighter of Nordair Canada at Manchester Airport in 1966

The advent of jet airliners such as the de Havilland Comet, Boeing 707, Douglas DC-8, Convair 880, and Sud Aviation Caravelle rendered the piston-engined Constellation obsolete. The first routes lost to jets were the long overseas routes, but Constellations continued to fly domestic routes. The last scheduled passenger flight in the lower 48 states was made by a TWA L749 on May 11, 1967, from Philadelphia to Kansas City, Missouri.[10] Constellations carried freight in later years, and were used on backup sections of Eastern Airlines' shuttle service between New York, Washington, and Boston until 1968. Many old propeller airliners were used on overnight freight runs, even into the 1990s, as their low speed was not an impediment. An Eastern Constellation to date still holds the record for a New York to Washington flight from liftoff to touchdown in just over 30 minutes. The record was set prior to speed restrictions by the FAA below 10,000 ft.[11]

One of the reasons for the elegant appearance of the aircraft was the fuselage shape—a continuously variable profile with no two bulkheads the same shape. Unfortunately, this construction was very expensive and was replaced by mostly tube-shaped modern airliners. The tube is more resistant to pressurization changes and cheaper to build.

With the shutdown of Constellation production, Lockheed elected not to develop a first-generation jetliner, instead sticking to its lucrative military business and production of the modest turboprop-powered Lockheed L-188 Electra airliner. Lockheed did not build a large civilian passenger aircraft again until its L-1011 Tristar debuted in 1972. While a technological marvel, the L-1011 was a commercial failure, and Lockheed left the commercial airliner business permanently in 1983.[12]

Variants

Super Constellation at Charles Prince Airport, Rhodesia (now Zimbabwe) in 1975, used as a flying club headquarters
A United States Navy R7V-2 (L-1249) in flight: The L-1249 used Pratt & Whitney T34 turboprop engines in place of the Wright R-3350 radials.[13]

The initial military versions carried the Lockheed designation of L-049; as World War II came to a close, some were completed as civilian L-049 Constellations followed by the L-149 (L-049 modified to carry more fuel tanks). The first purpose-built passenger Constellation was the more powerful L-649 and L-749 (which had more fuel in the outer wings),[8] L-849 (an unbuilt model to use the R-3350 TurboCompound engines adopted for the L-1049 ), L-949 (an unbuilt, high-density seating-cum-freighter type, what would come to be called a "combi"),[8] followed by the L-1049 Super Constellation (with longer fuselage), L-1149 (proposal to use Allison turbine engines)[8] and L-1249 (similar to L-1149, built as R7V-2/YC-121F),[8] L-1449 (unbuilt proposal for L1049G, stretched 55 in (140 cm), with new wing and turbines)[8] and L-1549 (unbuilt project to stretch L-1449 95 in (240 cm)),[8] and L-1649 Starliner (all new wing and L1049G fuselage).[8] Military versions included the C-69 and C-121 for the Army Air Forces/Air Force and the R7O R7V-1 (L-1049B) EC-121 WV-1 (L-749A) WV-2 (L-1049B) (widely known as the Willie Victor) and many variant EC-121 designations for the Navy [14][15]

Operators

After TWA's initial order was filled following World War II, customers rapidly accumulated, with over 800 aircraft built. In military service, the U.S. Navy and Air Force operated the EC-121 Warning Star variant until 1978, nearly 40 years after work on the L-049 began. Cubana de Aviación was the first airline in Latin America to operate Super Constellations. Pakistan International Airlines was the first airline from an Asian country to fly the Super Constellation.

Surviving aircraft

An abandoned Constellation display in Florida (1970s)
Lockheed L-1049 G Super Constellation on display close to Munich International Airport

Commercial

On Display
L-049
L-749
L-1049 Super Constellation
L-1649 Starliner
Under restoration or in storage
L-1049 Super Constellation
L-1649 Starliner

Military

The Breitling Super Constellation
Airworthy
C-121C
HARS Super Connie at Wollongong, 2004
On Display
VC-121A
L-749A restored at Aviodrome
VC-121E
Dwight D. Eisenhower flew in three Constellations, named Columbine, Columbine II, and Columbine III.
C-121C
EC-121K
EC-121T
N4257U on display at the Combat Air Museum in Topeka
L-1049G
Under restoration or in storage
WV-1
VC-121A
EC-121T
C-121J

Specifications (L-1049G Super Constellation)

Data from Great Aircraft of the World[49] and Quest for Performance[50]

General characteristics

Performance

Accidents and incidents

See also

Related development
Aircraft of comparable role, configuration and era
Related lists

References

Notes

  1. 1 2 3 4 Taylor 1993, pp. 606–607.
  2. 1 2 Yenne 1987, pp. 44–46.
  3. 1 2 Boyne 1998, pp. 135–137.
  4. Johnson 1985, pp. 82
  5. "Lockheed C-69 Constellation." militaryfactory.com, May 25, 2009. Retrieved: July 18, 2009.
  6. Sampson 1985
  7. Johnson 1985, pp. 92
  8. 1 2 3 4 5 6 7 8 Stringfellow and Bowers 1992.
  9. Pace 2003, p. 17.
  10. Germain 1998, p. 89.
  11. "Lockheed Constellation L749 N749NL Comeback." World News. Retrieved: February 22, 2011.
  12. Birtles 1998, p. 56.
  13. Alternate Wars.com - R7V-2 Standard Aircraft Characteristics; Retrieved 10/12/11
  14. Swanborough, Gordon and Peter M. Bowers. United States Navy Aircraft Since 1911. Annapolis, Maryland: Naval Institute Press, 1976. ISBN 0-87021-968-5.
  15. Fahey, James C. The Ships and Aircraft of the U.S. Fleet, volumes 1–4, 1939–45. Annapolis, Maryland: Naval Institute Press, 1965.
  16. "Lockheed L-049 Constellation." Pima Air & Space Museum. Retrieved: July 18, 2009.
  17. , "Lockheed Constellation, A majestade dos ares (in Portuguese). Museum Asas de um Sonho (Portugal). Retrieved: July 18, 2009.
  18. Pettersen, Ralph M. "N9412H c/n 2072." Constellation Survivors, 2011. Retrieved: February 22, 2011.
  19. Kinder, Steve. "AirlineFan: AeroSur Constellation N2520B in AeroSur Colors" "AirlineFan: AeroSur Constellation N2520B in AeroSur Colors", 2008. Retrieved: June 17, 2012.
  20. "F-ZVMV c/n 2503." conniesurvivors.com. Retrieved: July 18, 2009.
  21. The Stones Connie
  22. Hayles, John. "Science Museum Swindon: Constellation N7777G." aeroflight.co.uk, July 4, 2009. Retrieved: July 18, 2009.
  23. Bogash, Robert "Super Constellation CF-TGE." rbogash.com. Retrieved: November 3, 2011.
  24. Petersen, Ralph M. "CF-TGE c/n 4544." conniesurvivors.com. Retrieved: November 3, 2011.
  25. "Lockheed L-1049 G Super Constellation" Munich Airport Retrieved: August 31, 2009.
  26. Pettersen, Ralph M. "N974R c/n 1040." Constellation Survivors, 2011. Retrieved: February 22, 2011.
  27. "Lockheed L1649A Starliner, ZS-DVJ, c/n 1042." The South African Airways Museum Society via saamuseum.co.za. Retrieved: July 18, 2009.
  28. "Story of F-BGNJ." Amicale du Super Constellation. Retrieved: March 23, 2010.
  29. Pettersen, Ralph M. "HI-542CT c/n 4825." Constellation Survivors, 2011. Retrieved: February 22, 2011.
  30. "N6937C Lockheed Super Constellation "Star of America." Airline History Museum at Kansas City.Retrieved: July 18, 2009.
  31. Denning, Larry. "Connie at the Movies." Airline History Museum at Kansas City. Retrieved: July 18, 2009.
  32. Pettersen, Ralph M. "Breitling Super Constellation. After the discovery of corrosion, it was grounded for a time, but is flying again after extensive repairs." conniesurvivors.com, May 2004. Retrieved: July 18, 2009.
  33. "Historical Aircraft Restoration Society Super Constellation." hars.org.au. Retrieved: January 30, 2012.
  34. Pettersen, Ralph M. "N494TW c/n 2601." Constellation Survivors, 2011. Retrieved: February 22, 2011.
  35. Pima Air and Space Museum webpage. Retrieved 2013-11-05
  36. "C-121A." National Air and Space Museum. Retrieved June 28, 2011.
  37. "EC-121D." Aerospace Museum of California. Retrieved: January 20, 2013.
  38. "EC121T". petemuseum.org. Retrieved: November 21, 2010.
  39. "Lockheed EC-121T Constellation." Pima Air & Space Museum. Retrieved: July 18, 2009.
  40. Lockheed EC-121D Constellation National Museum of the United States Air Force via nationalmuseum.af.mil. Retrieved: October 16, 2016.
  41. "N4247K c/n 4144." conniesurvivors.com. Retrieved: November 21, 2010.
  42. Salina Connie. Retrieved February 16, 2013.
  43. Dagenhart, Jenna (March 23, 2016). "First Air Force One Aircraft Lands in Bridgewater for Restorations". WVIR. Retrieved March 24, 2016.
  44. http://www.nbcnews.com/news/other/first-air-force-one-plane-decaying-arizona-field-f6C10655363 First Air Force One plane decaying in Arizona field
  45. https://www.youtube.com/watch?v=dD8QiMlCk9U Video America's lost Air Force One
  46. http://foxtrotalpha.jalopnik.com/the-first-air-force-one-has-taken-to-the-skies-once-aga-1766275489
  47. "N4247K." conniesurvivors.com. Retrieved: November 23, 2010.
  48. "Qantas Founders Museum Saves a 'Super Constellation'". Warbirds News. 22 September 2014. Retrieved 29 November 2015.
  49. Cacutt 1989, pp. 314–322.
  50. Loftin, L. K. Jr. Quest for Performance: The Evolution of Modern Aircraft. NASA SP-468. Retrieved: April 22, 2006.

Bibliography

  • Birtles, Phillip. Lockheed L-1011 TriStar (Airliner Color History). St. Paul: Minnesota: Motorbooks International, 1998. ISBN 978-0-7603-0582-9.
  • Boyne, Walter J. Beyond the Horizons: The Lockheed Story. New York: St. Martin's Press, 1998. ISBN 0-312-24438-X.
  • Cacutt, Len, ed. "Lockheed Constellation". Great Aircraft of the World. London: Marshall Cavendish, 1989. ISBN 1-85435-250-4.
  • Germain, Scott E. Lockheed Constellation and Super Constellation. North Branch, Minnesota: Specialty Press, 1998. ISBN 1-58007-000-0.
  • Johnson, Clarence L. "Kelly" with Smith, Maggie. Kelly: More Than My Share of It All. Washington, D.C. Smithsonian Institution Press, 1985. ISBN 0-87474-564-0.
  • Marson, Peter J. The Lockheed Constellation Series. Tonbridge, Kent, UK: Air-Britain (Historians), 1982. ISBN 0-85130-100-2.
  • Pace, Steve. X-Planes: Pushing the Envelope of Flight. Osceola, Wisconsin: Zenith Imprint, 2003. ISBN 978-0-7603-1584-2.
  • Sampson, Anthony. Empires of the Sky: The Politics, Contest and Cartels of World Airlines. London: Hodder and Stoughton, 1985. ISBN 0-340-37668-6.
  • Smith, M.J. Jr. Passenger Airliners of the United States, 1926–1991. Missoula, Montana: Pictorial Histories Publishing Company, 1986. ISBN 0-933126-72-7.
  • Stringfellow, Curtis K. and Peter M. Bowers. Lockheed Constellation: A Pictorial History. St. Paul, Minnesota: Motorbooks, 1992. ISBN 0-87938-379-8.
  • Taylor, Michael J.H., ed. "Lockheed Constellation and Super Constellation". Jane's Encyclopedia of Aviation. New York: Crescent, 1993. ISBN 0-517-10316-8.
  • United States Air Force Museum Guidebook. Wright-Patterson AFB, Ohio: Air Force Museum Foundation, 1975.
  • Yenne, Bill, Lockheed. Greenwich, Connecticut: Bison Books, 1987. ISBN 0-517-60471-X.
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