THOR-300 Rate of turn indicator

The THOR-300 is a turn indicator that can be set to two different ranges. With the push of a button the THOR-300 is set to a range of 90 or 270 degrees. The display unit can be used as a standalone unit or in combination with the Radio Zeeland autopilots. In case of standalone use, the THOR-300 display unit is supplied with the P-300 gyrocompass P-300. Through the use of linear critical damping, the P-300 is always stable. This makes the P-300 unique in its kind. The display unit is overvoltage protected and very suitable for inland navigation and large pushers.