General Dynamics

Fire Control System (FCS) - TRIDENT Submarine


The SSBN-726 Ohio class submarines (also known as Trident submarines) are specifically designed for extended deterrent patrols. The submarine can carry 24 ballistic missiles fitted with MIRV warheads that can be accurately targeted and delivered from virtually anywhere in the world’s oceans. The pressure hull provides an enclosure large enough for weapons, crew and equipment with sufficient strength for deep-sea operation, enough to avoid easy detection.

We worked closely with General Dynamics, Electric Boat Division, to integrate our rugged COTS products into the Trident Fire Control System (FCS) program. Our high-speed Fiber Distributed Data Interface (FDDI) provides a robust, secure network topology with high bandwidth and powerful networking facilities, including fault tolerant features, which automatically ensures continuous operation.

The FDDI controller forms an integral part of the submarines upgraded computerized FCS, which is capable of launching up to 24 intercontinental ballistic missiles. Our FDDI interface controller manages the primary transfer of information between the hardware and software systems designed to control and sequence the missile launch functions.

Developments in the operational requirements of the modern battle space have inspired a further modification program for the conversion of four Trident submarines to enable the delivery of Tomahawk land-attack cruise missiles.

For more information concerning this program: