Alvin is a crewed deep-ocean research submersible owned by the United States Navy and operated by the Woods Hole Oceanographic Institution of Woods Hole, Massachusetts. The original vehicle was built
Alvin in 1978, a year after first exploring hydrothermal vents. The rack hanging at the bow holds sample containers.
The sunken Alvin on the ocean bottom in June 1969, photographed by USNS Mizar (T-AGOR-11)
A deep-submergence vehicle is a deep-diving crewed submersible that is self-propelled. Several navies operate vehicles that can be accurately described as DSVs. DSVs are commonly divided into two type
DSV Alvin
…Harold E. Froehlich was one of the principal designers of Alvin. Alvin, first of its ship class of deep submergence vehicle (DSV), was built to dive to 2,440 metres (8,010 ft). Each of the Alvin-class DSVs have different depth capabilities. However, Alvin is the only one…
In 1960, Jacques Piccard and Don Walsh were the first people to explore the deepest part of the world's ocean, and the deepest location on the surface of the Earth's crust, in the bathyscaphe Trieste designed by Auguste Piccard.
Historical deep-submergence vehicles
DSV Limiting Factor of Triton Submarines during sea trials
Ictineu 3 inside a warehouse in Sant Feliu de Llobregat, Catalonia, Spain.