USA: The second in a series of 35-metre articulated tug barges (ATB) vessels was delivered to Penn Maritime from Thoma-Sea Boat builders in December 2008.
‘ The vessel has a length of 35 metres on a beam of 10.9 metres and a moulded depth of 5.2 metres. ‘Coho’ is powered by a pair of ABS-certified 1,490kW, 60-litre V-16 Cummins QSK60 engines turning up to 1,800rpm into Reintjes gears with 7.45:1 ratios. The boat is fitted with Nautican nozzles and shutter rudders. The vessel also has three 99kW generator sets. The elevated wheelhouse has an eye level of 15.7 metres.