Temporarily allocated to Greenock, the Avonmouth-based tug AVONGARTH was used today to sail a ship from Hunterston, and was seen as she returned to her berth in the James Watt Dock. AVONGARTH was built as a Japanese harbour tug in 1981 by Kanagawa Zosen at Kobe, and was originally named IWASHIMA MARU. She was renamed in 1991, following acquisition by Cory Marine, and is now a member of the Svitzer fleet. She is 32.07 metres in length, and has a gross tonnage of 241 tons. Two Niigata main engines, driving twin azimuthing propellers, give her a maximum bollard pull of 35 tonnes. AVONGARTH is due to be joined this evening by another tug from the Bristol Channel, YEWGARTH. Both tugs are here to provide cover while WARRIOR III and SVITZER MILFORD undergo some maintenance.