Starting 13 April 1966 Yankee Station was moved further toward the Gulf of Tonkin at 17° 30' N and 108° 30' E,[3][2] about 190 km due east of Đồng Hới.
Flak suppression protocols had not yet been figured out; use of napalm, the most successful counter to anti-aircraft batteries, was banned by the American ambassador to Laos, Leonard Unger.
[4] After settling into secretive run air strikes against communist infiltrators into Laos, Yankee Team morphed into Operation Barrel Roll.
Kitty Hawk was joined by Ticonderoga in May and Constellation in June, two months prior to the Gulf of Tonkin Resolution.
USS Forrestal suffered a major accident while at Yankee Station when a series of fires and explosions on her deck killed 134 men and injured another 161.