SCHOTTEL propulsion systems fore icebreaking tugs
SCHOTTEL GmbH in Germany has recently secured the order from STX Europe to deliver the propulsion systems for three icebreaking tugs intended to operate in very shallow waters in the North Caspian Sea. Each tug will be equipped with three electrically driven Rudderpropellers of type SRP 2020 (pull version) especially ice strengthened above the class notation to perform ice milling in 60 cm thick ice. The units will have a max. input power of 1600 kW at max. 1200 r.p.m. Additionally, two SCHOTTEL Pump-Jets of type SPJ 132 (550 kW) will be installed in the bow of the vessels.
Construction contracts for these three tugs, owned by JSC Circle Marine Invest., have been signed by STX Norway Offshore AS, a wholly owned subsidiary of STX Europe. Caspian Offshore Construction in Kazakhstan will operate the vessels which will be delivered in 2010 and 2011 in the Kashagan field of the northern Caspian Sea.
The tugs are designed by the STX Europe subsidiary Aker Arctic and will be built in STX RO Offshore Braila SA . They have a length of 65 meters and a beam of 16.4 meters and will have the Ice class notification 1A* Super, according to the Finnish-Swedish Ice classification rules. They are intended especially for pushing barges in open water and in ice conditions. The tugs are also intended for ice management operations in astern working mode for ice milling in ice rubbles reaching the sea bottom. Further, the vessels are designed and will be equipped for other operations like fire fighting, rescue operation and towing in shallow waters.