Project TAGBOARD

  Origins and Context

Project TAGBOARD began in 1962 after the CIA and Air Force sought unmanned reconnaissance capabilities following the U-2 incident.¹ Lockheed Skunk Works developed the D-21 drone to launch from a modified A-12 aircraft designated M-21.²

  Program Structure

Kelly Johnson led development at Lockheed's Skunk Works facility, integrating the program with existing A-12 operations.³ The D-21 drone used a ramjet engine derived from the Bomarc missile program to achieve speeds over Mach 3.⁴

  Technical Capabilities

The D-21 drone could cruise at 90,000 feet while carrying high-resolution cameras in a recoverable data package.⁵ The titanium airframe withstood extreme temperatures using technology from the A-12 program.⁶

  Legacy

After several test flights and one fatal crash in 1966, the program shifted to B-52H launch platforms under Project SENIOR BOWL.⁷ The program ended in 1971 after four operational missions over China, demonstrating both the potential and limitations of unmanned reconnaissance.⁸

  References

1. cia.gov ↩

2. lockheedmartin.com ↩

3. nationalmuseum.af.mil ↩

4. airandspace.si.edu ↩

5. cia.gov ↩

6. ntrs.nasa.gov ↩

7. archives.gov ↩

8. apps.dtic.mil ↩