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DSV Limiting Factor
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DSV Limiting Factor
Limiting Factor, known as Bakunawa since its sale in 2022, and designated Triton 36000/2 by its manufacturer, is a crewed deep-submergence vehicle (DSV) manufactured by Triton Submarines, built for and originally owned and operated (2018–2022) by explorer Victor Vescovo's ocean research firm, Caladan Oceanic, and currently owned and operated by Gabe Newell's Inkfish ocean-exploration research organization. It currently holds the records for the deepest crewed dives in all five oceans. Limiting Factor was commissioned by Victor Vescovo for $37 million and operated by his marine research organization, Caladan Oceanic, between 2018 and 2022. It is commercially certified by DNV for dives to full ocean depth, and is operated by a pilot, with facilities for an observer.
The vessel was used in the Five Deeps Expedition, becoming the first crewed submersible to reach the deepest point in all five oceans. Over 21 people have visited Challenger Deep, the deepest area on Earth, in the DSV. Limiting Factor was used to identify the wrecks of the destroyers USS Johnston at a depth of 6,469 m (21,224 ft), and USS Samuel B. Roberts at 6,865 m (22,523 ft), in the Philippine Trench, the deepest dives on wrecks. It has also been used for dives to the French submarine Minerve (S647) at about 2,350 m (7,710 ft) in the Mediterranean sea, and RMS Titanic at about 3,800 m (12,500 ft) in the Atlantic.
The submersible is based on a spherical titanium pressure hull for two occupants, seated side by side, which has three wide angle acrylic viewports in front of the crew, one in front of each seat, and one below and between them. If the bow is defined as the side in which the viewports are mounted, the vessel is wider than it is long.
The vessel is equipped with a manipulator arm on the starboard side of the pressure hull, a system to drop ballast, and a cluster of five, fixed direction, ducted propeller, marine thrusters at each of the port and starboard ends of the outer hull for propulsion and maneuvering, as can be seen in the photographs. These thrusters provide three axis translational motion and two axis (yaw and roll) rotation.
The vessel is commercially certified for unlimited full ocean depth operations by DNV.
The Limiting Factor normally operates from a dedicated support vessel, DSSV Pressure Drop, but can also be operated from other suitably equipped vessels.
The vessel is certified by DNV for a maximum dive depth of 11,000 m (36,000 ft), exceeding that of the Challenger Deep, the ocean's deepest known point. It can withstand a tested pressure of 14,000 msw (46,000 fsw, 1,400 bar, 20,000 psi), significantly exceeding the certified pressure and affording a large margin of safety. The 36000/2 is commercially rated for repeated dives to full ocean depth.
The vessel is unusual in that it can travel on three primary axes, and in practice does a large amount of traveling vertically. If one uses the direction in which the occupants look out on the surroundings through physical windows to define the bow, it is wider than it is long. Alternatively it may be considered to have a bow at either end of the long axis, depending on the direction of motion at the time, like a proa. The long horizontal axis is 4.6 m (15 ft), while the short horizontal axis extent is only 1.9 m (6 ft 3 in). The height is 3.7 m (12 ft).
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DSV Limiting Factor
Limiting Factor, known as Bakunawa since its sale in 2022, and designated Triton 36000/2 by its manufacturer, is a crewed deep-submergence vehicle (DSV) manufactured by Triton Submarines, built for and originally owned and operated (2018–2022) by explorer Victor Vescovo's ocean research firm, Caladan Oceanic, and currently owned and operated by Gabe Newell's Inkfish ocean-exploration research organization. It currently holds the records for the deepest crewed dives in all five oceans. Limiting Factor was commissioned by Victor Vescovo for $37 million and operated by his marine research organization, Caladan Oceanic, between 2018 and 2022. It is commercially certified by DNV for dives to full ocean depth, and is operated by a pilot, with facilities for an observer.
The vessel was used in the Five Deeps Expedition, becoming the first crewed submersible to reach the deepest point in all five oceans. Over 21 people have visited Challenger Deep, the deepest area on Earth, in the DSV. Limiting Factor was used to identify the wrecks of the destroyers USS Johnston at a depth of 6,469 m (21,224 ft), and USS Samuel B. Roberts at 6,865 m (22,523 ft), in the Philippine Trench, the deepest dives on wrecks. It has also been used for dives to the French submarine Minerve (S647) at about 2,350 m (7,710 ft) in the Mediterranean sea, and RMS Titanic at about 3,800 m (12,500 ft) in the Atlantic.
The submersible is based on a spherical titanium pressure hull for two occupants, seated side by side, which has three wide angle acrylic viewports in front of the crew, one in front of each seat, and one below and between them. If the bow is defined as the side in which the viewports are mounted, the vessel is wider than it is long.
The vessel is equipped with a manipulator arm on the starboard side of the pressure hull, a system to drop ballast, and a cluster of five, fixed direction, ducted propeller, marine thrusters at each of the port and starboard ends of the outer hull for propulsion and maneuvering, as can be seen in the photographs. These thrusters provide three axis translational motion and two axis (yaw and roll) rotation.
The vessel is commercially certified for unlimited full ocean depth operations by DNV.
The Limiting Factor normally operates from a dedicated support vessel, DSSV Pressure Drop, but can also be operated from other suitably equipped vessels.
The vessel is certified by DNV for a maximum dive depth of 11,000 m (36,000 ft), exceeding that of the Challenger Deep, the ocean's deepest known point. It can withstand a tested pressure of 14,000 msw (46,000 fsw, 1,400 bar, 20,000 psi), significantly exceeding the certified pressure and affording a large margin of safety. The 36000/2 is commercially rated for repeated dives to full ocean depth.
The vessel is unusual in that it can travel on three primary axes, and in practice does a large amount of traveling vertically. If one uses the direction in which the occupants look out on the surroundings through physical windows to define the bow, it is wider than it is long. Alternatively it may be considered to have a bow at either end of the long axis, depending on the direction of motion at the time, like a proa. The long horizontal axis is 4.6 m (15 ft), while the short horizontal axis extent is only 1.9 m (6 ft 3 in). The height is 3.7 m (12 ft).
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