Northrop Grumman’s Sperry Marine business unit has introduced a new heading management system for ships. The NAVITWIN IV Heading Management System monitors and controls all heading sources of a multi-compass heading reference system to provide increased safety and efficiency in marine navigation. This new system, that replaces Sperry Marine’s NAVITWIN III compass monitor, has been type-approved to European Council Directive 96/98/EC by the German certification authority Bundesamt für Seeschiffahrt & Hydrographie.
The system continuously monitors and displays the data from up to three true heading sources and one magnetic compass on a bright, color, high-resolution LCD display. It monitors the difference between any two of the displayed headings and actuates an audible and visible alarm if the difference between the two exceeds a preset threshold. NAVITWIN IV also provides automatic correction of magnetic deviation and variation.