David Sheppard enlisted in the US Air Force on July 1, 1963. He was on continuous active duty until discharged on April 23, 1971.He received US Air Force Technical Training at Sheppard Air Force Base, Texas for Missile Electronics and Titan II Missile Systems. He was then assigned to Little Rock AFB, Jacksonville, Arkansas, where he was a member of a Title II launch crew and pulled alerts in Titan II missile silos. During this time, he went TDY to Vandenberg AFB where he received Missile Combat Crew Training.
In April 1965 he was selected for the Airman Education and Commissioning Program (AECP) and enrolled in Arizona State University full-time, where he received his bachelor’s degree in mechanical engineering in August 1967. After graduation, he attended Officer Training School (OTS) at Lackland AFB, San Antonio, Texas from Sept through Nov, 1967. Following graduation from OTS, he was selected for the master’s program at Stanford University where he was assigned. He completed the course work in December 1968, and was awarded his masters in June 1969.
Following his studies at Stanford, he was assigned to Tinker AFB, Oklahoma, where he performed duties as an aeronautical engineer for the KC-125, B-52 and several airborne missile systems. He also worked the accident investigations of two B-52s crashes at Castle Air Force Base, California.
He was honorable Discharge on April 23, 1971. Highest Grade: Captain.