increased the effectiveness of night patrols. Point Mast assisted in the recovery of a damaged and sunken Patrol Craft Fast on 14 February 1966. She towed it and the Landing Craft Mechanized holding the crane supporting the stricken boat nine miles to deeper water where the repair ship USS Krishna could recover the boat from the water. On 15 June 1970, Point Mast was turned over to the Republic of Vietnam Navy as part of the Vietnamization of the war effort and recommissioned as RVNS Đằm Thoại (HQ-721). References Bibliography External links The Coast Guard's Vietnam Augusta State University website Mast 1961 ships Vietnam War patrol vessels of the United States United States Coast Guard ships transferred to the Republic of Vietnam Navy Ships built by the United States Coast Guard Yard