 The flight covered 2,769.84 miles from Naval Air Station Whidbey Island, in Washington State to Homestead Air Force Base, in Florida.The aircraft was equipped with an internal auxillery fuel tank in the cargo bay and an Aero 3C external fuel tank which provided total fuel for over 12.5 hours flight time.The original reason for the flight was to demonstrate the OV-10A trans-Atlantic capability which Marine Corps Headquarters staff planners did not recognize at the time.