His duties there included chief of the integrated systems test division, as well as participating in engineering flight tests of UH-1 and AH-1 helicopters and U-21 and OV-1 fixed wing aircraft, serving as project officer and senior test pilot on the Hughes YAH-64 advanced attack helicopter during government competitive testing; and participation with Sikorsky Aircraft Corporation test pilots in developing an electronic automatic flight control system for the new Army transport helicopter — the UH-60A Black Hawk.