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"DSV-0" Trieste - the bathyscaphe that reached Challenger Deep, retired 1966, also called X1 DSV-1 Trieste II - an updated bathyscathe (or bathyscaph) design, retired 1984, also called X2 DSV-2 Alvin - a deep diving sub, reaching only half as deep as the two Triestes DSV-3 Turtle - Alvin's identical sibling, retired 1998, USN DSV-4 Sea Cliff - another Alvin class DSV sub, retired 1998, USN DSV-5 Nemo - another Alvin class DSV sub, retired 1998, USN
DSRV-1 Mystic DSRV-2 Avalon
NR-1 Nerwin - nuclear powered research DSV sub
http://www.nvr.navy.mil/nvrservicecraft/c_DSV.htm http://www.nvr.navy.mil/nvrservicecraft/details/DSV1.htm http://www.nvr.navy.mil/nvrservicecraft/details/DSV2.htm http://www.nvr.navy.mil/nvrservicecraft/details/DSV3.htm http://www.nvr.navy.mil/nvrservicecraft/details/DSV4.htm http://www.nvr.navy.mil/nvrservicecraft/details/DSV5.htm
http://www.nvr.navy.mil/nvrservicecraft/c_DSRV.htm http://www.nvr.navy.mil/nvrservicecraft/details/DSRV1.htm http://www.nvr.navy.mil/nvrservicecraft/details/DSRV2.htm http://www.chinfo.navy.mil/navpalib/factfile/ships/ship-dsrv.html
Most famously, Alvin was involved in the exploration of the wreckage of RMS Titanic in 1985. Launched from her support ship R/V Knorr it carried Dr.Robert Ballard and two companions to the wreckage of the great sealiner. RMS Titanic sank while attempting to transit the North Atlantic Ocean, after striking a large iceberg in 1912.
That paragraph is all wrong. Alvin did not explore the Titanic in 1985, it was 1986. And the Knorr was not the ship in the '86 mission. The Atlantis II was.
Fixed it, no need to have an obvious and easily corrected error in the article.
AM2783 17:45, 20 March 2006 (UTC)AM2783
What does this sentence mean?
Next Generation Alvin
here's a story about upgrading Alvin 
- Alvin is currently on display at the Navy Museum, Washington Navy Yard, next to the Trieste. BubbleDine (talk) 11:25, 14 April 2010 (UTC)
List of deep submergence vehicles
There is a list of deep submergence vehicles which will only get longer on this page, and aren't directly related to Alvin. Should this list be moved to its own page? —Anne Delong (talk) 06:25, 2 March 2013 (UTC)
"It is unknown, however, if a human could survive the rapid trip to the surface."
This sentence is misleading and should be deleted. Since the pressure inside Alvin's crew capsule is the same as on the ocean surface (atmospheric pressure), the speed of ascent is irrelevant. Alvin crew members shooting to the surface would experience no pressure change and therefore no ill-effects whatsoever. IF the pressure inside Alvin would be ambient pressure, i.e. what a scuba diver would be exposed to, the statement would be correct, but the whole point of a submarine is to allow humans to function at atmospheric (i.e. normal) pressure while venturing underwater.DanielStolte (talk) 23:04, 1 October 2014 (UTC)