A model of the multi-purpose mini submarine on display at the Saha Expo showing the general arrangement of the submarine and the pressure vessel. (Cem Devrim Yaylali) Datum Submarine Engineering, a ...
A 1:5 scale model of M23's C-Series mini-submarine, usually 22 m long, displayed at DIMDEX in January 2026. (Janes/Tom Barton) Italian submarine-maker M23 revealed details of two mini-submarine types ...
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