The THOR line is based on its predecessors – the Sigma, Titan and Falcon lines – and combines analogue and digital technologies in a versatile line of navigation products. The THOR line is suitable for both new construction and the replacement market.

THOR-550 Autopilot

The THOR-550 control unit is one of the Radio Zeeland autopilots. Together with the P-503 junction box, the THOR-100 rudder position indicator and an optional THOR-300 Rate of Turn indicator the THOR-550 is a complete autopilot. This system has the unique possibility of being connected to every approved rate of turn indicator via the P-503 junction box and the P-100 sensor, as the rudder position is indicated on the LED display of the THOR-550.


The THOR-550 provides three ways to steer the vessel: by a Rate of Turn indicator pilot, by a follow-up steering system, or by a second pilot.

Ask Us for More Information?

Contact one of our specialists for more information or a quotation!

THOR-550 Autopilot

LED display

The small LED display provides a digital reading of the rudder position, alarms, functions, and indicators for a quick and clear overview of the information provided.

Look and feel

The THOR instruments have a slightly lower top, so that an adjustable front can be added. These fronts are available in any color and lay-out you want. The fronts are available in Gorilla Glass or foil.


Download the brochure in English, Dutch, German or French.