The contract includes the development and delivery of about one hundred F21 torpedoes and their integration into French submarines.
In 2008 France signed a development contract for 93 heavy torpedoes for its nuclear submarines, to be delivered from 2015.
[6] The F21 shares similarities with the Black Shark, including an electric motor driven by an aluminum silver-oxide (AgO-Al) battery.
and a contra-rotating propeller[8] It has a warhead of PBX B2211, range of 50 km (31 mi) and speed of 50 knots (93 km/h).
[6] The F21 was first tested on DCNS's Pégase catamaran in February 2013 and a submarine launch was planned for 2014, with production deliveries scheduled to start in late 2015.