FNRS-3, Deep-sea submersible at Toulon Naval Base, France
The FNRS-3 bathyscaphe measures 15 meters in length with a pressurized cabin designed to withstand extreme depths of up to 4,000 meters.
In February 1954, the FNRS-3 set a depth record of 4,050 meters off Dakar, surpassing Auguste Piccard's previous Mediterranean Sea record by 900 meters.
The French Navy acquired and rebuilt this research vessel in 1950 from the Belgian National Fund for Scientific Research, marking France's advancement in marine exploration.
The submersible operates with two crew members and features a 1 kW electric motor that allows movement at speeds reaching 0.5 knots for 24-hour missions.
The vessel contains 78,000 liters of gasoline in its float tank, which regulates descent speed through a system of water ballast replacement.
GPS coordinates: 43.10361,5.92577
Latest update: June 23, 2025 09:44
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