Halter retrofits ocean towing tug Signet Warhorse II

(PASCAGOULA, Miss.) — ST Engineering Halter Marine and Offshore has retrofitted new propulsion and maneuvering systems on an ocean towing tug, Signet Warhorse II, for Signet Maritime Corp., a global marine transportation and logistics services company.

The scope of work included removing existing shafts and fixed pitch propellers and replacing them with controllable pitch propellers consisting of shaft bearings and shafts. Auxiliary components including the oil distribution box and feedback unit were integrated into the machinery space.

The existing bow tunnel thruster was replaced with a retractable azimuth thruster.

ST Engineering laser scanned the bow hull to create a 3D model so that the hull fairing plates could be developed and installed in way of the new dropdown azimuthing thruster. The installation of the new thruster casing, including the fairing plate and thruster alignment, were executed on a 24-hour shift.

Prior to departure, the vessel was treated to a thorough blast and paint job of underwater/freeboard areas. A complete ABS survey of the hull was conducted upon completion.

By Professional Mariner Staff