Andrasta is a

submarine A submarine (or sub) is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability. The term is also sometimes used historically or colloquially to refer to remotely op ...

design concept announced by the

French French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with Franc ...

shipbuilder DCNS in 2008. A development of the and based on the previous SMX-23 concept, it is a smaller vessel optimised for shallow water operations. DCNS advertising material for the ship concept, in a

PDF Portable Document Format (PDF), standardized as ISO 32000, is a file format developed by Adobe in 1992 to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems. ...

document with a date-time stamp of 19 October 2008, includes information and digital illustrations that reveal the torpedo tube configuration and other details. The draught of the proposed submarine is apparent from the numbered depth markings shown on the hull in one of the illustrations. It is designed for anti-submarine and anti-surface warfare, as well as intelligence gathering and special operations.Naval Technology, Sept 2008
/ref> This design evolved into the Scorpène 1000.

References

Submarine classes Proposed ships {{submarine-stub