Two Foss Maritime conventional twin-screw harbor service tugs have been repowered and converted into azimuthal stern drive (ASD) vessels. The projects, involving 96 ft. sister ships, increase horsepower by 46 percent, and bollard pull by 63 percent. Vessel manueverability and pilot visibility are also dramatically enhanced. Work on Seattle-based Daniel Foss is complete with the Los Angeles-based Peter Foss scheduled to return to service in March 1999. Foss uses both vessels to provide harbor services, including ship assist, tanker escort and barge transportation. The vessels were originally designed by The Glosten Associates, Seattle, and built in the late 1970s at Main Iron Works, Houma, La. Conversion and repowering are being done at Marine Industries Northwest, Inc., (MINI) Seattle.