French SSN through-life support arrangements deliver increased availability
The French Navy's operational Rubis-class nuclear-powered attack submarines (SSNs, or SNAs [sous-marin nucléaire d'attaque]) are achieving availability levels above 80% despite the youngest boat now being 23 years old, the Marine Nationale and DCNS have told
IHS Jane's.
Six Rubis-class SNAs, commissioned between 1993 and 2003, are in service. The class will be gradually phased out over the next decade as the replacement Suffren-class boats enter service; first-of-class
Rubis is due to decommission in 2017, with the remaining boats to progressively retire through to 2029.
Out of the six Rubis-class boats, four are maintained in the operational cycle, one is in deep refit, and the other in a routine intermediate overhaul period. SNA through-life support (TLS) is being delivered by DCNS under the terms of a five-year contract which became effective in April 2015.
According to Franck Ferrer, DCNS's SNA programme director, the TLS contract mechanism - which measures performance and payment against SNA availability - has incentivised DCNS to invest in both facilities and process. "Despite the global ageing of the fleet, we are still improving boat availability," he said. "That is a factor of both the soundness of the original design, and the way the [TLS] contract is structured."
The management organisation implemented by DCNS has introduced a fully dedicated team focused on improving fleet availability. In addition, the company has reorganised resources and infrastructure at Toulon to optimise maintenance and support outputs.
As prime contractor to the navy's fleet support service [Service de soutien de la flotte - SSF), DCNS has organised its operation into five activity lines: programme management; shipyard; crew support; engineering; and logistics.