Multi-sensor speed logs debut

Sperry Marine has launched a new family of multi-sensor marine speed logs. The NaviKnot 600 series of products are based on a new satellite speed sensor that yields dual axis speed over ground.

The satellite speed log can serve as a stand-alone device or be integrated with a single-axis electromagnetic or doppler speed log. The three-way satellite, electromagnetic, doppler combination is said to provide maximum flexibility and redundancy.

The NaviKnot 600 systems use a twin GPS antenna array to measure a ship’s heading, velocity, course and attitude. The unit’s processor uses the GPS data, integrated with output from rate gyros, to calculate longitudinal and transverse speed over ground with an accuracy of ±1 per cent or 0.1 knots, whichever is greater. In its docking mode, the display shows a graphic diagram with rate of turn, bow and stern side-to-side speed over ground and other useful data.

Sperry Marine also unveiled the newest enhancement to its VisionMaster FT lineup of marine navigation systems – a wide-screen high-resolution display with 25 per cent more viewing area.

Sperry Marine’s WideView display console is designed to improve situational awareness for bridge watch officers by providing additional information alongside the radar or ecdis picture. The iWindow display on the left-hand side is user configurable to show split-screen and window inset views of conning information, closed-circuit TV images and other operational modes. MEC