Penlee, Cornwall - At 10.40 p.m. on 17th May, 1969, news was received that a yacht had engine failure five miles east of Runnelstone buoy. At 10.50 the life-boat Thomas McGunn, on temporary duty at the station, was launched. It was low water. The life-boat went to the position given and requested the yacht to show a searchlight as there were numerous ships in the area. The searchlight was seen and the life-boat came up with the yacht Silver Thistle, with a crew of three on board, seven miles south west of Tater Due. She was taken in tow to Newlyn, and the lifeboat returned to her station at 2.40 a.m..