Most active submersible in service

Last updated: August 29, 2019 at 3:36 am

Human Occupied Vehicle (HOV) Alvin (a.k.a. DSV-2) — Woods Hole Oceanographic Institution (WHOI). On November 25, 2018, Alvin had completed 5,000 dives. Commissioned on June 5, 1964, it is owned by the U.S. Navy and operated by the Woods Hole Oceanographic Institution. Alvin is manned by a three-person crew of one pilot and two scientific observers. It is launched from the U.S. Navy deep submergence support vessel RV Atlantis (AGOR-25) and it has a maximum operating depth of 4,500 m (14,770 ft) for dives lasting up to 10 hours. Alvin’s most famous exploits include locating a hydrogen bomb in the Mediterranean Sea (1966), exploring deep-sea hydrothermal vents (1980s), and it conducted the first submersible dive on the wreck of the Titanic in 1986. Research conducted by scientists working aboard Alvin has been featured in approximately 2,000 science papers. Alvin was named to honour its main proponent, M. Allyn Vine.

Alvin Dive Statistics as of 25/11/2018
Total Dives 5,000
Total Depth 10,349,202 m (33,954,075 ft)
Average Depth per Dive 2,070  m (6,791 ft)
Total Time Submerged 34,983  hours
Average Time Submerged per Dive 7.00 hours
Total Persons Carried 14,991
Dive Purpose Breakout
Biology 1,943
Geology/Geophysics 1,558
Chemistry/Geochemistry 702
Engineering/Equipment Tests 325
Search/Survey/Recovery 244
Orientation/Training 147
Certification 81
Woods Hole Oceanographic Institution (WHOI)

Please note that comments are moderated: (1) Stay on topic (2) Be respectful (3) Refrain from vulgarity and abusive language (4) Do not make personal complaints about a person’s character, business, work or associations (5) Do not publish materials that violate copyright. OFFENDING COMMENTS WILL BE DELETED.
If you have claim to a diving or underwater record or first, if you know of a significant first or record not listed here, or if you can demonstrate that any of the information on this website is false or outdated, please complete the form on the record submission page.
In order to ensure your browsing experience is as enjoyable as possible, banners are kept to an absolute minimum, which means that advertising revenues alone cannot sustain this 100% FREE publication. Researching and updating the Diving Almanac requires a lot of time and dedication. If you believe the diving community needs a central body of information to record, validate and make available our shared history and accomplishments, please show your support by making a contribution to the Diving Almanac via PayPal (Porbeagle Press). Thank you!