1979 The MK 15 mixed-gas closed-circuit rebreather replaces the MK 6 UBA
1979 Divers from NEDU complete a 37-day, 1,800 fsw dive in its Ocean Simulation Facility
1981 A record 2,250-foot dive is made in the Duke Medical Center chamber
1981 The deepest salvage operation made with divers was 803 fsw when British divers retrieved 431 gold ingots from the wreck of HMS Edinburgh, sunk during World War II
1985 New low magnetic MK 16 is approved for EOD
Pretty interesting stuff...
http://www.divinghistory.com/navydivers.htm http://www.learn-in-asia.com/technic...e_article2.htm
<SPAN style="FONT-FAMILY: Arial">701m Hydreliox 0.7%O2 pp02=0.5bars. Saturation. Deepest chamber dive
http://www.mediacen.navy.mil/pubs/al...jun00/pg14.htm