Wow, I’m sure you are very proud of what your Dad accomplished. What a legacy!
I was studying to be a mechanical engineer at the time, so we had great conversations about his work. On another satellite project, he took me to his work to observe the shake tests of the satellite payload with folded solar panels. They would sweep through all the frequencies the payload would be subjected to on launch. When the hit the resonate frequency of the folded solar panels, they began flapping like bird wings in flight! It really made the theoretical stuff I was studying in school be real.