Aircraft Photo of 60-6940 / 06940 | Lockheed M-21 | USA - Air Force | AirHistory.net #805366
Aircraft
Registration / Serial:60-6940
Alternate Serial:06940
Aircraft Original Type:Lockheed SR-71 Blackbird
Aircraft Generic Type:Lockheed A-12/YF-12/M-21/SR-71 Blackbird
Aircraft Version:Lockheed M-21
C/n (msn):134
Operator Titles:USA - Air Force
Location
City / Airport:Seattle - Boeing Field / King County InternationalMap
Region / Country:Washington, United States
Airport Codes:ICAO: KBFI   IATA: BFI   Local: BFI   Other: -
Collection:Museum of Flight
 
Photo Date:16 June 2016
Photo by:Arjun Sarup
Photo ID: 805366
Photo Comment

On display at Museum of Flight. Article 134 is the first of two built in 1963 and the only one to survive a test loss. It was retired after 80 flights. D-21 'Tagboard' drone #510 for unmanned recce is attached to the spine launch pylon. Launch of these drones at M 3.3 by the Launch Control Officer (LCO) seated in the aft cockpit proved difficult. The 13.1 m titanium D-21 with a max weight of 4,990 kg was powered by a Marquart XRJ43-MA-20S4 ramjet engine that could fly the drone in excess of M 3.3 and 80,000 ft for around 90 min. Only the nose section with the cameras and film was recoverable.

This photo is copyright © Arjun Sarup, and may not be used or published in any way without permission.

It was added on 5 May 2025, and has since been viewed 88 times.


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