Turtle is a 16-ton, manned deep-ocean research submersible owned by the United States Navy

United States Navy

The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...

. It is sister to Alvin (DSV-2)

DSV Alvin

Alvin is a manned deep-ocean research submersible owned by the United States Navy and operated by the Woods Hole Oceanographic Institution in Woods Hole, Massachusetts. The vehicle was built by General Mills' Electronics Group in the same factory used to manufacture breakfast cereal-producing...

, and also an Alvin class Deep Submergence Vehicle

Deep Submergence Vehicle

A Deep Sea Submergence Vehicle is a deep diving manned submarine that is self-propelled. The term DSV is generally one used by the United States Navy, though several navies operate vehicles that can be accurately described as DSVs...

. The Turtle was retired from active service in 1998. It now resides at the Mystic Aquarium

Mystic Aquarium & Institute for Exploration

The Mystic Aquarium & Institute for Exploration is an aquarium and oceanography institute in Mystic, Connecticut. The Aquarium is one of only four U.S. facilities nation where people can see Steller sea lions and has one of the largest outdoor Beluga Whale exhibits in the United States. It is also...

 in Mystic, Connecticut

Mystic, Connecticut

Mystic is a village and census-designated place in New London County, Connecticut, in the United States. The population was 4,001 at the 2000 census. A historic locality, Mystic has no independent government because it is not a legally recognized municipality in the state of Connecticut...

The Turtle is designed to dive to 8000 feet. It has a hatch 2-feet thick, and held in place by the pressure of the water above it (it is tapered, narrower inward). The Alvin-class DSV were designed to replace older DSV, such as the less maneuverable Trieste-class bathyscaphe

Bathyscaphe

A bathyscaphe is a free-diving self-propelled deep-sea submersible, consisting of a crew cabin similar to a bathysphere, but suspended below a float rather than from a surface cable, as in the classic bathysphere design....

s.

External links

• Naval Vessel Register: DSV-3 (ex-TURTLE)

See also

• Deep Submergence Vehicle
  Deep Submergence Vehicle
  A Deep Sea Submergence Vehicle is a deep diving manned submarine that is self-propelled. The term DSV is generally one used by the United States Navy, though several navies operate vehicles that can be accurately described as DSVs...
  
  
• Deep Submergence Rescue Vehicle
  Deep Submergence Rescue Vehicle
  A Deep Submergence Rescue Vehicle is a type of Deep Submergence Vehicle used for rescue of downed submarines and clandestine missions. While DSRV is the term most often used by the United States Navy other nations have different designations for their vehicles.- Chinese models :The People's...
  
  
• Bathyscaphe Trieste
  Bathyscaphe Trieste
  The Trieste is a Swiss-designed, Italian-built deep-diving research bathyscaphe with a crew of two, which reached a record maximum depth of about , in the deepest known part of the Earth's oceans, the Challenger Deep, in the Mariana Trench near Guam, on January 23, 1960, crewed by Jacques Piccard ...
  
   (DSV-0)
• Bathyscaphe Trieste II
  Bathyscaphe Trieste II
  Trieste II ' was the successor to Trieste — the United States Navy's first bathyscaphe purchased from its Swiss designers. The original Trieste design was heavily modified by the Naval Electronics Laboratory in San Diego, California and built at the Mare Island Naval Shipyard...
  
   (DSV-1)

Alvin class DSV

• Alvin (DSV-2)
• Turtle (DSV-3)
• Sea Cliff (DSV-4)
• Nemo (DSV-5)