A senior STM official said during an interview at IDEF that the conceptual design idea of the submarine came from a foreign country. As negotiations over the project continue, the details and characteristics of the boat may change in line with the requirements of the end user.
IDEF 2021: STM details small submarine design for foreign customer | Shephard
The 42m STM500 will be armed with four torpedo tubes and includes SOF infil/exfil among its intended mission sets.
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