![]() As installed on the Scorpènes, it requires adding a new 8.3-metre (27 ft), 305-tonne hull section to the submarines, and enables a submarine to operate for more than 21 days under water depending on speed. This pressure-firing allows exhaust carbon dioxide to be expelled overboard at any depth without an exhaust compressor.Įach MESMA system costs around US$50–60 million. ![]() The combustion of the ethanol and stored oxygen, at a pressure of 60 atm (6.1 MPa), generates steam which powers a conventional turbine power plant. It is essentially a modified version of their nuclear propulsion system with heat being generated by ethanol and oxygen. The French Module d'Energie Sous-Marine Autonome (MESMA) system is being offered by the French shipyard Naval Group for the Scorpène-class submarines. The class can also be fitted with a 'S-Cube' sonar suite from Thales. The Chilean and Malaysian boats are fitted with the TSM 2233 Mk 2 sonar. The Scorpène class of submarines has three subtypes: the CM-2000 conventional diesel-electric version, the AM-2000 air-independent propulsion (AIP) derivative, the downsized CA-2000 coastal submarine, and the enlarged S-BR for the Brazilian Navy, without AIP. It features diesel propulsion and an additional air-independent propulsion (AIP). The Scorpène-class submarines are a class of diesel-electric attack submarines jointly developed by the French Naval Group (formerly the DCNS) and the Spanish company Navantia. ![]() 550 nmi (1,020 km 630 mi) at 5 kn (9.3 km/h 5.8 mph) (submerged)Ħ × 533 mm (21 in) torpedo tubes for 18 Whitehead Alenia Sistemi Subacquei Black Shark heavyweight torpedoes, SM-39 Exocet anti-ship missiles, and A3SM ( MICA) anti-air missiles and 30 mines in place of torpedoes.DRDO PAFC Fuel Cell AIP ( Kalvari class). ![]()
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