Former Smit Manila, former Seaford and former Seaforth Challenger. Built at the shipyard of Drypool, Selby. Commissioned in 1974. With a displacement of 1.100 tons (full load) are the dimensions 55.5 x 12.3 x 4.3 metres or 182.1 x 404.4 x 14.1 feet. Her hp diesel engine supplied via one shaft 5.000 hp allowing a speed of 12 knots/ Her crew numbered 32 men, Armed with 2-2cm Oerlikons, She was a former supply vessel converted by Pan United Limited at Singapore and was decommissioned in April 1989 to replace the Thule.
The website http://www.shipsnostalgia.com/showthread.php?t=36176 said that she was launched on 3 May 1973 at the Seaforth Challenger at the yard of Cochrane Selby (building no. 1548), in October of the same year completed, four years later sold and renamed Seaford, in 1981 again sold becoming the Smit Manila and finally sold in 1989 to become the Utö.
The website http://www.worldshipsocietyrotterdam.nl/nieuwsbrief/nb104.pdf said that the Smit Manila (7319242) of Smith International South East Asia (Pte.) Limited of Nassau-Bahamas. Was build by the Drypool Group Limited which explored the Cochrane Shipyard at Selby. She was sold in 1987 to the Swedish navy. On 9 December 2003 registered as the Zakher Moon with as owner Zakher Marine of Abu Dhabi, Comoros-flagged and managed by Zakher Marine Oilfield of Abu Dhabi.