Here is a note and link provided by my cousin that you may find interesting regarding the SR-71 and D-21 drone project.
Joe,
See
http://www.youtube.com/watch?v=AUlybyeTJ30. This is the top secret program I was in charge of security for at Beale AFB from 1968-1970 when it was discontinued. This video sums it up pretty well. John Hazlett was a rich Captain on flight pay and a friend who took me, a poor Lieutenant, water skiing behind his 18' Horizon jet boat with a 455 Olds engine.
The idea was to overfly China with unmanned drones, as their research facility was about 1200 miles inland and the US was wary of losing another pilot after Gary Powers was shot down in the U2 over Russia. The Chinese could see the overflights but could do nothing about them and did not know they were essentially unsuccessful. I suspect Nixon negotiated away the program in his talks with the Chinese, knowing full well new satellite technology would soon make the overflights unnecessary anyway.
It was incredible being 23-24 years old and to be given such responsibility, as this was a program so secret only a few people at the very top of government even knew it existed. Our black funds were hidden deep in the Inspector General's budget. The project code word "tagboard" was so secret that we were told that the OSI (Office of Special Investigations) would send an agent to kill us if we ever even mentioned the word. The SR-71 program at the same base was very hush-hush, but we were a secret within a secret. I was sent to Okinawa to escort the film back to Washington DC in a briefcase handcuffed to my wrist and allowed to carry my .38 concealed on a commercial airline flight just like in the movies. Unfortunately, that is the mission that was successful until the Navy recovery ship ran over the floating camera pod and sunk it. I came back empty-handed. The program is well covered in a book called "Skunk Works" by Ben Rich. See the chapter entitled "The China Syndrome."
Once the program was cancelled, I was transferred to the base Security Police squadron as admin officer for my last two years. Jailing drunks and guarding B-52's was not too exciting after my first two years.
Craig