The design draws on France’s nuclear-powered Barracuda class but uses lithium-ion batteries developed with Saft. Naval Group says the battery system supports longer submerged operation while the hull and onboard systems reduce acoustic and magnetic signatures.

A crew of about 35 can be supplemented by commandos or technical specialists. The Netherlands selected the design as the basis for four Orka-class submarines, with a supplier network spanning French and Dutch industry.

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