Mobius has designed an electromechanical actuator dedicated to boat self-steering system. It's been designed at first for solo racing sail boats but it finds many application for large multihull as well. The unit is compatible with a large diversity of autopilot brands like B&G, NKE, etc..
 

One of the key features of this product is the possibility to de-engage the transmission internally in order to reduce to the minimum the residual friction on the steering system while steering the boat by hand. This internal feature provides safety to the skipper as it will always engage when needed without searching a specific steering position. It as also the best power density of the market as it can push 1.5 tons at 75 mm/s weighing only 11.5 kg. The product offers also CANopen communication protocol or analogical control.