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HADAL Deep Ocean Exploration System for Sale


The unique Deep Ocean Explorer System consisting of the T-Agos vessel 'DSSV Pressure Drop', the manned submersible 'Limiting Factor' together with a number of supporting features.



The most recent expedition has just successfully re-located, surveyed, and filmed the USS Johnston, the world’s deepest known shipwreck at a depth of 21,180ft (6,456m) during two separate, eight-hour dives. These constituted the deepest wreck dives, manned or unmanned, in history.


Images and videos have been released here - https://caladanoceanic.com/media/newsroom/


On offer are the vessels:


• ‘Pressure Drop’:

Oceanographic research and deep diving support. Built Tacoma 1985, converted 2002, substantially refitted 2018. Flag: Marshall Is. IMO 8833867. Class ABS. LOA 68.3m, Beam 13.1m. Draft 4.6m. Main engines: 2 General Electric direct current electric motors driven by 4 Caterpillar gensets. Max 10 kts. Bow thruster 550hp. Dry & Wet Science Labs. Command & Control Centre. Retractable Submersible Hangar. 12ton A-Frame Launch & Recovery System. Kongsberg SIMRAD EM124 FOD capable Multi-Beam Echo Sounder (MBES). Three FOD capable scientific landers with sample collection, underwater navigation, and hi-definition video recording capability. Kongsberg EA640 Echo Sounder. Accommodation: 49 pax in 26 cabins. 18-20 crew.


• ‘Limiting Factor’:

Manned submersible. Built: Triton Submarines LLC, 2018. Commercially Classed by DNV-GL. Max persons onboard: 2. Max depth unlimited. Attained depth: 10,928m (35,853 feet) at Challenger Deep.


The vessels have successfully:

• undertaken over 60 dives to date,

• visited the five deepest places on the planet,

• visited Challenger Deep (the deepest point in the oceans) fourteen times,

• filmed and accurately mapped over one million square kilometres of ocean floor,

• collected soil samples at depths of almost 11 km (7 miles).


Full plans and particulars are available on request.


•‘Pressure Drop’:

Oceanographic research and deep diving support vessel. Built in Tacoma, USA in 1985 as a T-Agos vessel for the NOAA, converted 2002, substantially refitted in 2018.

Flag: Marshall Islands, Class ABS.

LOA 68.3m, Beam 13.1m. Draft 4.6m.

Main engines: 2 General Electric direct current electric motors driven by 4 Caterpillar gensets. Max 10 kts. Bow thruster 550hp.

Dry & Wet Science Labs. Command & Control Centre. Retractable Submersible Hangar. 12ton A-Frame Launch & Recovery System.

Kongsberg SIMRAD EM124 FOD capable Multi-Beam Echo Sounder (MBES).

Three FOD capable scientific landers with sample collection, underwater navigation, and hi-definition video recording capability. Kongsberg EA640 Echo Sounder.

Accommodation: 49 pax in 26 cabins. 18-20 crew.


The vessels have successfully:

• undertaken over 60 dives to date,

• visited the five deepest places on the planet,

• visited Challenger Deep (the deepest point in the oceans) fourteen times,

• filmed and accurately mapped over one million square kilometres of ocean floor,

• collected soil samples at depths of almost 11 km (7 miles).


Full plans and particulars are available on request.


The vessels represent an investment of over $50 million. Owners are asking for sensible offers. Proposals for conversion to comfortable yacht are available. Delivery this summer.





All details without guarantee.




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