Suffren-class submarine

Suffren class
Suffren class profile
Class overview
NameSuffren class
BuildersNaval Group
Operators French Navy
Preceded byRubis class
SubclassesOrka class
Cost10.42 billion (2014) (equivalent to 11.67 billion in 2022) for 6 units (about 1.73 billion (2014) (equivalent to 1.94 billion in 2022) per unit )
Built2007–present
In commission2020–present
Planned6
Building2
Completed4
Active3
General characteristics
TypeNuclear attack submarine
Displacement
  • 4,765 t (4,690 long tons) surfaced
  • 5,300 t (5,200 long tons) submerged
Length99.5 m (326 ft 5 in)
Beam8.8 m (28 ft 10 in)
Draught7.3 m (23 ft 11 in)
Propulsion
  • K15 nuclear reactor, 150 MW (200,000 hp)
  • 2 x Turbo-generator groups: 10 MW (13,000 hp) each
  • 2 x emergency diesel generators 480 kW (640 hp) each
  • 1 x pump-jet electrically driven
Speed
  • Over 25 kn (46 km/h; 29 mph)
  • 14 kn (26 km/h; 16 mph), surfaced
RangeUnlimited range
EnduranceDepends on the amount of food carried or potential crew fatigue while operational (typically 70 days worth of food is embarked)
Test depth>350 m (1,150 ft)
Complement
  • 12 officers
  • 48 petty officers
Sensors &
processing systems
  • Naval Group SYCOBS combat management system
  • Thales UMS-3000 hull and flank array sonar suite
  • ETBF DSUV 62C towed array sonar
  • Thales SEACLEAR mine and obstacle avoidance sonar
  • Thales VELOX-M8 broadband sonar interceptor
  • Thales NUSS-2F Mk2 navigation echo sounder
  • Safran Series 10 CSR navigation radar
  • NEMESIS electronic countermeasure system
Armament

The Suffren class is a class of nuclear-powered attack submarines, designed by the French shipbuilder Naval Group (formerly DCNS) for the French Navy. It is intended to replace the Rubis class. Construction began in 2007 and the lead boat of the class, Suffren, was commissioned on 6 November 2020. It officially entered active service on 3 June 2022.