The audio file of Robert Truax's presentation at the AIAA Student Conference at Stanford University, May 1975. The subject was his involvement with Evel Knievel building the Skycyclefor his (Knievel’s ) attempted jump across the Snake River Canyon the previous year.
Tape runs out before the end, but a summary of the missing part is provided in the introduction (which is done by a 23-year-old Jack Hagerty).