This new thruster is specially built to give a maximum thrust in a minimum diameter.
A perfect choice for sailboats or as an upgrade thruster model for boats were the SP 155 TC is standard so that you can use the boat?s ?standard? tunnel size. It will also be the most Powerful choice for older boats with a 250 mm tunnel and a thruster which is to small from the time when these powerful DC thrusters were not availble.