The salvage operation, made possible by several large donations, including from Sir Jack Hayward and Sir Paul Getty, was organised by 'the SS "Great Britain" Project', chaired by Richard Goold-Adams. Ewan Corlett conducted a naval architect's survey, reporting that she could be refloated. A submersible pontoon, "Mulus III", was chartered in February 1970. A German tug, "Varius II", was chartered, reaching Port Stanley on 25 March. By 13 April, after some concern about a crack in the hull, the ship was mounted successfully on the pontoon and the following day the tug, pontoon and "Great Britain" sailed to Port Stanley for preparations for the transatlantic voyage. The voyage (code name "Voyage 47") began on 24 April, stopped in Montevideo from 2 May to 6 May for inspection, then across the Atlantic, arriving at Barry Docks, west of Cardiff on 22 June. ("Voyage 47" was chosen as the code name because it was on her 47th voyage from Penarth, in 1886, that during a tempest she had sought shelter in the Falklands.) Bristol-based tugs then took over and towed her, still on her pontoon, to Avonmouth Docks.