Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!apple!veritas!amdcad!amdcad!military From: henry@zoo.toronto.edu (Henry Spencer) Newsgroups: sci.military Subject: Re: D-21 drone Message-ID: <1991May7.062835.13548@amd.com> Date: 4 May 91 21:59:48 GMT References: <1991May3.063259.5277@amd.com> Sender: military@amd.com Organization: U of Toronto Zoology Lines: 24 Approved: military@amd.com From: henry@zoo.toronto.edu (Henry Spencer) >From: scottl@convergent.com (Scott Lurndal) >...quick mention was made of a drone version of the Blackbird, >known as the D-21... [At least Mr. Spencer edited the quote down to two lines! Take note. --CDR] Not quite right. The D-21 was a recon drone that flew at similar speeds to the Blackbird and bore some slight resemblance to a scaled-down Blackbird, but it wasn't the same aircraft. The original intent was to launch it from the Blackbird -- the drone being carried on the Blackbird's back fairly well aft -- but separating the two proved troublesome and at least one Blackbird was lost in an attempted drone launch. The remaining D-21s were converted for launch from B-52s, using a rocket booster to get them up to cruising speed. This apparently worked well enough, but the D-21 was expensive and the program was eventually closed down. A little bit of information, including photographs of some mothballed D-21s, surfaced a few years ago. -- And the bean-counter replied, | Henry Spencer @ U of Toronto Zoology "beans are more important". | henry@zoo.toronto.edu utzoo!henry