Article Posted on : - Oct 26, 2010

A replica of the Barracuda nuke attack sub. A DCNS photo

PARIS (BNS): French shipbuilder DCNS has selected the Sigma 40XP inertial navigation systems for the French Navy’s new Suffren class nuclear attack submarines it is building under the Barracuda project.

The Sigma navigation system is designed by defence company Sagem.

The decision came after DCNS witnessed the Sigma 40XP’s “high performance” demonstrated during sea trials conducted by the French Navy using a number of ships including the Monge test and measurement vessel, the Beautemps-Beaupré oceanographic research ship, and Rubis/Amethyste class nuclear attack submarines.

Featuring advanced technologies like laser gyros and sophisticated digital filtering, the Sigma navigation system will be incorporated in the new submarines’ combat system.

It will play a critical role in the success of all tactical missions, as well as navigation in close quarters and weapon systems, including the planned SCALP naval cruise missiles, according to Sagem.

The navigation system has been fitted in a number of surface vessels and submarines developed by over 30 navies worldwide.

Sagem has also been contracted to provide the DAS air-surface optronic and radar detection system on the Suffren class nuke subs.