Lockheed A-12 je dvomotorno visokohitrostno (Mach 3+) izvidniško letalo, ki ga je razvil ameriški Lockheed za CIO. Pri načrtovanju so si pomagali z dizajni konstruktorja Clarencea »Kellyja« Johnsona. A-12 je bil podlaga za Lockheed SR-71 Blackbird, obe letali sta si po izgledu in sposobnostih skoraj identični. Črka A je okrajšava za kodno ime »Archangel«. Zgradili so tudi dvosedeženo verzijo Lockheed YF-12 in njegovo izpeljanko M-21, ki se je uporabljala za izstrelitev brezpilotnega D-21.

A-12 in SR-71 sta poganjala dva enogredna turboreaktivna motorja z dodatnim zgorevanjem Pratt & Whitney J58. Zaradi ekstremnih pogojev delovanja so morali razviti novo gorivo, imenovano JP-7.

A-12 je bil pionir na številnih področjih: bil je eno izmed prvih letal, ki so uporabljali titan v konstrukciji. A-12 je bil tudi deloma stealth letalo in edino letalo, ki je letelo kontinuirano pri hitrosti večji od Mach 3.

A-12 je zmagal na natečaju "Oxcart", njegov konkurent je bil malce manj sposobni Convair Kingfish, je pa imel slednji manjši radarski presek.

Specifications (A-12)

Glej tudi

Reference

Bibliografija Donald, David, ed. "Lockheed's Blackbirds: A-12, YF-12 and SR-71". Black Jets. Norwalk, Connecticut: AIRtime, 2003. ISBN 1-880588-67-6. Jacobsen, Annie. Area 51. London: Orion Publishing, 2011. ISBN 978-1-4091-4113-6. Jenkins, Dennis R. Lockheed Secret Projects: Inside the Skunk Works. St. Paul, Minnesota: MBI Publishing Company, 2001. ISBN 978-0-7603-0914-8. Landis, Tony R. and Dennis R. Jenkins. Lockheed Blackbirds. Minneapolis, Minnesota: Specialty Press, revised edition, 2005. ISBN 1-58007-086-8. McIninch, Thomas. "The Oxcart Story." Center for the Study of Intelligence, Central Intelligence Agency, 2 July 1996. Retrieved: 10 April 2009. Pace, Steve. Lockheed SR-71 Blackbird. Swindon, UK: The Crowood Press, 2004. ISBN 1-86126-697-9. Robarge, David. Archangel: CIA's Supersonic A-12 Reconnaissance Aircraft. Washington, D.C.: Central Intelligence Agency, 2008. ISBN 1-92966-716-7. Crickmore, Paul F. Lockheed SR-71 - The Secret Missions Exposed. Oxford, Englan: Osprey Publishing, 2000. ISBN 1 84176 098 6 Graham, Richard H. SR-71 Revealed: The Inside Story. St. Paul, Minnesota: MBI Publishing Company, 1996. ISBN 978-0-7603-0122-7. Johnson, C.L. Kelly: More Than My Share of it All. Washington, D.C.: Smithsonian Books, 1985. ISBN 0-87474-491-1. Lovick, Edward, Jr. Radar Man: A Personal History of Stealth. Bloomington, Indiana: iUniverse, 2010. ISBN 978-1-4502-4802-0. Merlin, Peter W. Design and Development of the Blackbird: Challenges and Lessons Learned., Orlando, Florida: American Institute of Aeronautics and Astronautics (AIAA), 2009. AIAA 2009-1522. Merlin, Peter W. From Archangel to Senior Crown: Design and Development of the Blackbird (Library of Flight Series). Reston, Virginia: American Institute of Aeronautics and Astronautics (AIAA), 2008. ISBN 978-1-56347-933-5. Pedlow, Gregory W. and Donald E. Welzenbach. The Central Intelligence Agency and Overhead Reconnaissance: The U-2 and OXCART Programs, 1954–1974. Washington, D.C.: Central Intelligence Agency, 1992. ISBN 0-7881-8326-5. Rich, Ben R. and Leo Janos. Skunk Works: A Personal Memoir of My years at Lockheed. New York: Little, Brown and Company, 1994. ISBN 0-316-7433. Shul, Brian and Sheila Kathleen O'Grady. Sled Driver: Flying the World's Fastest Jet. Marysville, California: Gallery One, 1994. ISBN 0-929823-08-7. Suhler, Paul A. From RAINBOW to GUSTO: Stealth and the Design of the Lockheed Blackbird (Library of Flight Series). Reston, Virginia: American Institute of Aeronautics and Astronautics (AIAA), 2009. ISBN 978-1-60086-712-5.

Zunanje povezave

Archangel: CIA's Supersonic A-12 Reconnaissance Aircraft by David Robarge. (Cia.gov) Project Oxcart: CIA Report FOIA documents on OXCART (Declassified 21 January 2008) Differences between the A-12 and SR-71 Blackbird Spotting maps the location of every existing Blackbird, with aerial photos from Google Maps Photographs and disposition of the "Habu" aircraft at habu.org The U-2's Intended Successor: Project Oxcart (Chapter 6 of "The CIA and Overhead Reconnaissance", by Pedlow & Welzenbach) USAF Aircraft Serial Numbers for 1960, including all A-12s, YF-12As and M-21s "The Real X-Jet", Air & Space magazine, March 1999 Secret A-12 Spy Plane Officially Unveiled at CIA's Headquarters

Kategorija:Letala Lockheed Kategorija:Izvidniška letala