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Expeditions | Discoveries
The discovered her on October 10, 2010 and launched repeat expedition in 2012 and 2014 to photograph and map the entire ship. THE USS R-12 was lost June 12th 1943. The production of “Expedition R-12- Discovering Americas Forgotten Submarine” chronicles the subs history and the expedition. 
14 U.S. Navy Submarines Discovered

  • USS Grayback (SS-208) - June 2019 Okinawa, Japan *
  • USS Robalo (SS-273) - Balabec Straight Philippines
  • USS Grunion (SS-216) - August 2018 / 2006  Kiska, Alaska *
  • USS S-28 (SS-133) -September 2017  Honolulu, Hawaii] *
  • USS S-26 (SS-131) - September 2014  Pacific Panama *
  • USS R-12 (SS-89) - October 2010  Key West, Florida  *
  • USS Flier (SS-250) - May 2009 Palawan Island
  • USS Lagarto (SS-371) - May 2006  Gulf of Thailand
  • USS Wahoo (SS-238) - July 2006  La Peruse Strait, Russia
  • USS Perch (SS-176) - November 2006  Java Sea
  • USS Stickleback (SS-415)  - August 2019 Honolulu Hawaii​**
  • USS Robalo (SS-273) - May 2019 Philippines
  • USS Grenadier (SS-210)  October 2019 Strait of Malacca Phuket, Thailand
  • USS S-35 (SS-140) August 2019 Honolulu Hawaii***

Discovered by Lost 52 Project​
** WWII Submarine Lost in Cold War
*** WWII Scuttled Post War
Expedition S-28 has successfully discovered the lost WWII submarine USS S-28. Considered the most important lost ship in the central Pacific, the USS S-28 sank on July 4th 1944 and was discovered, explored and surveyed in 2650 meters (8700 feet) of water off the cost of Oahu, Hawaii. She holds an entombed crew of 49 US sailors. 
Expedition 2018 focused work off the East coast of Japan and in the Aleutian Islands, Alaska.   The team was able to successfully revisit the USS Grunion and discovered her lost bow section.
USS Grayback discovered off of Okinawa Japan 435 meters / 1427 feet deep. This is the final resting place of 80 US Sailors.
Expedition 2020
* WWII-Cold War 
USS Stickleback discovered off of Honolulu Hawaii in 2019 
Expedition 2010-2014
Expedition 2013
Expedition 2017
Expedition 2018
Expedition 2019
Expedition 2020
2010        2014        2017       2018          2019       2020
USS S-35 discovered off of Hawaii helping confirm earlier discovery of the USS S-28.
Expedition S-26 successfully discovered the of a lost US WWII Submarine USS S-26. It is the is the 7th one discovered of the wars 52 missing US Submarines. The USS S-26 was lost  a little over a month into the WWII on January 24th 1942 and rests in deep water in the Pacific Ocean off of Panama. 

USS S-28 (SS-133)
USS S-26 SS_131
USS R-12 SS-89
USS Grunion SS-216
USS Wahoo SS-238
USS Flyer SS-250
USS Lagarto SS-371
USS Perch SS-176