The first Trans-Pacific helicopter flight was accomplished by two HH-53Cs, 69-5787 and 69-5788. The historic flight began on 15 August 1970 at Eglin AFB and with several enroute stops arrived at Danang South Vietnam on 24 August 1970.
The flight shortened the delivery time of the choppers to Vietnam by about 75% and demonstrated the long-range capability of helicopters refueled in the air.
The second Trans-Pacific flight consisted of three HH-53Cs and took place in March of 1971. J. D. Adams was one of the FEs on the flight from Eglin to Udorn. His first person story can be read in the Blog in the April 2006 archives.