The log is used onboard ships with dynamic buoyancy.
It is designed to:

• measure speed through the water, its longitudinal and transverse components with respect to the underlying surface (sea, ground);
• determine the current drift angle;
• generate the course over ground by heading indicator data;
• measure the covered distance;
• measure separate segments of the covered distance;
• display and transmit the generated parameters.

Multifunctional indicators provide the required data availability for navigating the ship.

The drift log interfacing with the ship control system enables a steady heading or course over ground to be automatically steered.