T R A N SVE R S E T H R U ST E R - Schottel GmbH

2 3INDISPENSABLE FORMANOEUVRING ANDDYNAMIC POSITIONINGTransverse thrusters are installed in the bow or stern in orderto improve manoeuvrability of the ship. Depending on the typeof vessel, the range of application for transverse thrusters extendsfrom brief docking and undocking in ports with a limitednumber of operating hours every year up to continuous operationunder extreme load conditions in demanding offshore applicationswith dynamic positioning.INDIVIDUALLY TAILOREDCONFIGURATIONSTT with electric motorThe transverse thrusters are individually configured bySCHOTTEL project engineers to suit the particular application.Light manoeuvring duties allow high specific thrusterperformance with the propeller running at a peripheralspeed of up to 33 m/s. In tough offshore applications, thepropellers operate at lower blade tip speeds.CHOICE OF PRIME MOVERSSCHOTTEL Transverse Thrusters can be powered by dieselengines, electric motors or hydraulic motors. Electric motorsare included optionally in the scope of supply. The prime movercan be connected either horizontally or vertically and thusincorporated optimally into the naval architectural design.STT with hydraulic motorWhen fixed-pitch propellers are used, electric and hydraulicmotors allow the direction of thrust to be reversed. An additionalreversing gearbox is required if the thruster is poweredby a diesel engine.The transverse thruster types STT 1 to 5 are available witheither fixed-pitch or controllable-pitch propellers. Thrusterswith controllable-pitch propellers can be powered in the sameway as those with fixed-pitch propellers – however it is notnecessary to equip a diesel engine with a reversing gearbox inthis case.STT with diesel engine