US-based tug operators Marquette Transportation Co and EN Bisso & Son Inc have each taken delivery of new towboats. Master Marine Inc has delivered a new 2,000hp Z-drive towboat from its shipyard in Bayou La Batre, Alabama to Marquette. St. Simon is a Z-drive towboat, designed by Entech Designs for inland river operations.
It is powered by two Caterpillar C32 Tier 3 1,000hp engines that run at a maximum rate of 1,800 rpm. These are connected to ZF Marine’s ZF AT 5111WM-FP Z-drives that have 1,650 mm four-bladed propellers. These generate a maximum speed of 10 knots.
St. Simon is also outfitted with a pair of John Deere 4045AFM85 Tier 3 generator drive engines. These can drive an 80kW Marathon Mariner generator for ship services. It also has Duraweld coolers, a pair of Patterson 40-tonne deck winches and Schuyler rubber bumpers. Rio Marine supplied the alarms and monitoring systems and New World Electronics deployed the bridge systems.
EN Bisso christened its new 5,362hp, azimuth stern drive tug Gladys B at Signet Shipbuilding shipyard in Pascagoula, Mississippi. It is a Robert Allan-designed Z-drive tug that will operate on the Mississippi River. It is powered by two MTU 16V4000 M64, Tier 3 diesel engines, which are connected to Rolls-Royce US205, fixed pitch Z-drives with four-bladed propellers. The propulsion package gives the vessel a bollard pull of 60 tonnes ahead and 56 tonnes astern.