Sanmar recently delivered the FiFi1 escort tug 'Bison' to Norwegian owner Buksér og Berging.
'Bison' is a RAstar 2800/80 escort/terminal ASD tug measuring 28.2 metres by 12.6 metres and is the ninth of this class to be built by Sanmar. Standard on this model is a sponsoned hull form, which enhances escorting stability.
However, a number of improvements were made to enhance performance. A bollard pull of 80 tonnes and a free-running speed of 14 knots was obtained from a twin Caterpillar main engine installation comprising two IMO Tier II, 3516C type main engines, each developing 2240kW at 1,800rpm. These turn Rolls-Royce model US 25CP Z-drives. The skeg was also re-designed to improve escorting capability.
'Bison' will join Buksér og Berging's fleet serving the Swedish petrochemical industry at the terminal in Stenungsund. The vessel will operate under Swedish flag with a Swedish crew of four.