Case Studies

Category: Hybrid

Foss Hybrid Tug Project Campbell Foss

By Mike Vining
July 18, 2012 Category: Marine, Hybrid, Bell Housing Clutch, CH Clutch, Main Propulsion, Case Studies, Marine

Founded in 1889, Seattle-based Foss Mari-time offers a complete range of maritime ser-vices and project management to customers across the Pacific Rim, Europe, South Ameri-ca and around the globe. With one of the largest fleets of tugs and barges on the Ameri-can West Coast, Foss operates two shipyards and offers worldwide marine transportation, emphasizing safety, environmental responsi-bility and high-quality service. Logan Clutch is proud to have been involved with the conversion of the Dolphin Class tug Campbell Foss into the Worlds second Hybrid Tug. The Campbell Foss was built in 2005 in Rain-er WA in the Foss Yard and was originally a conventional tug powered with two 2540hp Caterpillar 3512C engines coupled to Rolls-Royce US205 fixed pitch azimuth thrusters. The conversion involved adding a new Logan LCT Bell Housing clutch on to the 21 flywheel output of the 3512s with an integrated Centa torsional coupling. The flange output of the clutch was connected by a shaft to the motor


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