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2. Trieste II (Bathyscaphe) - Wikipedia

   en.wikipedia.org/wiki/Trieste_II_(Bathyscaphe)

   This work resulted in yet a new appearance for the Trieste II, and included the installation of a new pressure sphere, designed for operation to 20,000 feet (6,100 m). As the bathyscaphe continued her operations as a test vehicle for the deep submergence program, she qualified four officers as "hydronauts" – the beginning of a burgeoning ...

3. Pisces-class deep submergence vehicle - Wikipedia

   en.wikipedia.org/wiki/Pisces-class_deep...

   6.10 m (20 ft 0 in) Beam: 3.20 m (10 ft 6 in) Height: 3.35 m (11 ft 0 in) Propulsion: 2 × side-mounted reversible thrusters tiltable through 90 degree, 2 × lead-acid battery systems: 120 V DC at 330 Ah capacity and 12–24 V DC at 220 Ah capacity: Speed: 2.0 knots: Range: 7–10 hours operational time: Endurance: 140 hours life support for 3 ...

4. Unmanned underwater vehicle - Wikipedia

   en.wikipedia.org/wiki/Unmanned_underwater_vehicle

   The TLK-1000 would be much larger again, up to 12 meters (40 feet) in length and with four thrusters." [ 11 ] In April 2024, Ukraine has announced that it was testing an “unmanned submarine” that can be fitted with a warhead, stealth features and sensors, carry up to 10 divers, carry six torpedoes or missiles and has an endurance of 54 ...

5. Deep-submergence vehicle - Wikipedia

   en.wikipedia.org/wiki/Deep-submergence_vehicle

   This bathyscaphe consisted of a gasoline filled float, 22 feet long and 10 feet wide, and oval shaped. Gasoline being less dense than water, would provide buoyancy for when the bathyscaphe needed to rise to the surface. [1] The ovular float was divided into six tanks for holding gasoline, having a combined total of 6,600 gallons. [1] FNRS-3

6. Frozen feet, cramped quarters: What it's like in the Titan ...

   www.aol.com/news/frozen-feet-cramped-quarters...

   Condensation builds inside the domed area of the submersible, adding to the discomfort, according to Alfred Hagen, an explorer and documentary filmmaker who took trips on the craft in 2021 and 2022.

7. Remotely operated underwater vehicle - Wikipedia

   en.wikipedia.org/wiki/Remotely_operated...

   ROV at work in an underwater oil and gas field. The ROV is using a torque wrench to adjust a valve on a subsea structure.. A remotely operated underwater vehicle (ROUV) [citation needed] or remotely operated vehicle (ROV) is a free-swimming submersible craft used to perform underwater observation, inspection and physical tasks such as valve operations, hydraulic functions and other general ...