Trieste-class deep-submergence vehicle

deep sea scientific submarine

The FNRS-3 or FNRS III is a bathyscaphe of the French Navy. It is currently preserved at Toulon. She set world depth records, competing against a more refined version of her design, the Trieste. The French Navy replaced her with the bathyscaphe Archimède, in the 1960s.

thumb|The FNRS-3 at the Tour Royale, Toulon|Tour Royale in Toulon.

US Navy's second bathyscaphe