Indeed, IFMU, your dad made the first flight and the initial envelope expansion tests associated with the stabilator. FBW in 1975. That the stabilator programming came together so quickly is a result of his work. Can’t blame him for being upset to see his work transferred to other OEM’s without so much as a thank you. Wasn’t just the stabilator. The CH-54 load stabilization and precision ( remote controlled ) over system designed and flight tested out of his Engr Branch was similarly passed to Boeing and resided in their HLH proposal.