Owner: K/S Bugsertjenest II A/S (Johannes Østensjø dy) - Haugesund; in 2000 Manwijs - Nassau; in October 2007 Svitzer Middle East Ltd. - Nassau; in October 2011 Kingstown
Built: Keel laid 10-11-1987; launched 18-02-1988; delivered in May 1988
Yard: Båtservice Verft A/S - Mandal
Construction number: 673
Dimensions: 33.30 x 29.95 x 10.60 x 5.62 x 5.02 m.
Tonnage: 375 GRT
Call signal: L.A.C.W./C.6.R.P.7./ J.8.B-4564
Lloyds/IMO: 8714243
Machines: 2x four-stroke 8 cylinder Krupp/MaK type 8M-332-AK, 240x330 each coupled to a Liaaen Compass Azimuth propeller type TCN 92/68-250; 2 Leroy Somer generators 160 kW/380 V/50 Hz; 2x Brunvoll bow thruster with adjustable propeller; 2 Kværner fire pumps of 400 m³ each on 3 monitors on the wheelhouse of 5000 and 3000 m³/h; Karmøy towing winch with 45 ton double drum at the front and the same 150 ton winch at the rear; 2x Karmøy capstan of 3 tons each; 1 60 ton Mampay towing hook; stern roller of 100 tons
Power: 4,450 apk; 3,200 kW
Speed: 13.5 knots
Bollard pull: 57 tons forward; 52 tons backwards.
Purchased: Charter brought in by Wijsmuller on 01-10-2002
Sold: In July 2013 as WULF 9 to Otto Wulf GmbH & Co. KG (Wulf Seetransporte GmbH) - Cuxhaven

Details: Class NV +100A1 EO tug BIS Oil Rec FiFi 1 SF.
Double oil boom of 250 meters each and Foxtail VAB.9-14 oil skimmer with waste oil tank of 66 m3. Extinguishing foam tank of 12 m3.
In 1999 in charter with Plipwijs - Trinidad.
In 2002 renamed from VELOX and in charter with Wijsmuller.
From September 2011 to October 2012 as SV SIRI at Sea & Vessel Co. Limited Liability Company. (Svitzer Middle East Ltd.) - Kingstown.
In April 2013 in charter with Otto Wulf GmbH & Co. KG (Wulf Seetransporte GmbH) - Cuxhaven.
Purchased by Wulf in January 2014 and renamed WULF 9.