NT850 Main Steering System – Type 4

Dual Independent Rudder Systems benefit from simple synchronisation of rudder positions (when required) via inclusion of the NT850 NFU and immediate Override control is available to the operator in any emergency situation via use of the NT850 OVSW. Steering Mode selection is via the NT850 STMS whilst Pump selection (single rudder) or Rudder System selection (dual rudders) is afforded by the NT851 STSS (as shown above) and together provide selection of the Rudder System to be used (No 1, No 2 or both) plus Pump Selection (single rudder system) to allocate/share duties/redundancy as required.

Operation is therefore straight forward with operating/control modes defined as follows:-
FU ……. Follow Up Wheel unit type NT850 WFU active.
NFU …. Non Follow Up control type NT850 NFU active.
Auto … NT888G Autopilot steering active*.

* Vessels over 3000GT would use Navitron Autopilot type NT999G and larger control panel.

Dims:  497 x 636 x 200 mm
Cut Out:  448 x 588 mm