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McDonnell TD2D Katydid

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TD2D Katydid
McDonnell KDD-1 on display at theSteven F. Udvar-Hazy Center
Role Target drone
National origin United States
Manufacturer McDonnell Aircraft
First flight 1942
Primary user United States Navy

TheMcDonnell TD2D Katydidis apulsejet-powered American targetdroneproduced byMcDonnell Aircraftthat entered service with theUnited States Navyin 1942, and continued in use until the late 1940s.

History

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In March 1941,[1]the U. S. Navy awarded McDonnell Aircraft a contract for a radio-controlled target drone under the designation of XTD2D-1 for anti-aircraft and aerial gunnery practice. The aircraft had a mid-mounted wing,V-tail,andMcDonnell XPJ40-MD-2pulsejetengine mounted atop the rear fuselage. The drone could be either launched bycatapultfrom the ground or from underwing racks onConsolidated PBY Catalinaflying boats.[2][3]It was gyro-stabilized, and control was byradio command;[4]at the end of its mission the drone could be recovered byparachute.[2]

Operational history

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The Katydid entered service in 1942;[5]testing took place at theNaval Air Missile Test CenterinPoint Mugu, California.[6]Production models were originally designated TD2D-1, however the Navy changed its designation system in 1946 and the XTD2D-1 and TD2D-1 were redesignated as XKDD-1 and KDD-1, respectively. Later that year, the Navy changed McDonnell's manufacturer code letter from "D" - which had been shared withDouglas Aircraft- to "H", the KDD-1 being again redesignated, as KDH-1.[7]

Surviving aircraft

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A KDH-1 is displayed in theSteven F. Udvar-Hazy Centerof theNational Air and Space Museum,having been donated by the U.S. Navy in 1966.[2]

Specifications (KDD-1)

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Data fromUdvar-Hazy Center,[2]Parsch 2003[7]

General characteristics

  • Crew:None
  • Length:11 ft 2 in (3.40 m)
  • Wingspan:12 ft (3.7 m)
  • Gross weight:320 lb (145 kg)
  • Powerplant:1 ×McDonnell XPJ40-MD-2pulsejet,60 lbf (0.27 kN) thrust

Performance

  • Maximum speed:250 mph (400 km/h, 220 kn)
  • Endurance:40 minutes

See also

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Aircraft of comparable role, configuration, and era

Related lists

References

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  1. ^Bugos, Glenn E. (1996).Engineering the F-4 Phantom II: Parts Into Systems.Annapolis, MD: Naval Institute Press. p.11.ISBN978-1557500892.
  2. ^abcd"Katydid Drone".National Air and Space Museum.Smithsonian Institution. 27 September 2016. Archived fromthe originalon 2017-12-03.Retrieved2017-12-06.
  3. ^Ordway, Frederick Ira; Ronald C. Wakeford (1960).International Missile and Spacecraft Guide.New York: McGraw-Hill. p. 187.ASINB000MAEGVC.
  4. ^Zandt, J.P. (1948).World Aviation Annual.Washington, DC: Aviation Research Institute.ASINB000HKMGMI.
  5. ^Yenne, Bill (2006).Secret Gadgets and Strange Gizmos: High-Tech (and Low-Tech) Innovations of the U.S. Military.Minneapolis, MN: Zenith Press. p. 25.ISBN978-0760321157.
  6. ^"Navy Guided Missiles".Astro-Jet(18). Reaction Research Society: 12. Fall 1947.Retrieved2017-12-06.
  7. ^abParsch, Andreas (26 March 2003)."McDonnell TD2D/KDD/KDH Katydid".Directory of U.S. Military Rockets and Missiles, Appendix 1: Early Missiles and Drones.Designation-Systems.Retrieved2017-12-03.