Newtsuit is constructed to function like a 'submarine you can wear', allowing the diver to work at normal atmospheric pressure even at depths of over . Made of wrought aluminium, it had fully articulated joints so the diver can move more easily underwater. The life support system provides 6–8 hours of air, with an emergency back-up supply of an additional 48 hours. The Hardsuit was used to salvage the bell from the wreck of the SS Edmund Fitzgerald in 1995. The latest version of the Hardsuit designed by Oceanworks, the "Quantum 2", uses higher power commercially available ROV thrusters for better reliability and more power as well as an atmospheric monitoring system to monitor the environmental conditions in the cabin. A more recent design by Nuytten is the Exosuit, a relatively lightweight and low powered suit intended for marine research. It was first used in 2014 at the Bluewater and Antikythera underwater research expeditions. The ADS 2000 was developed jointly with OceanWorks International and the US Navy in 1997, as an evolution of the Hardsuit to meet US Navy requirements. The ADS2000 provides increased depth capability for the US Navy's Submarine Rescue Program. Manufactured from forged T6061 aluminum alloy it uses an advanced articulating joint design based on the Hardsuit joints. Capable of operating in up to of seawater for a normal mission of up to six hours it has a self-contained, automatic life support system. Additionally, the integrated dual thruster system allows the pilot to navigate easily underwater. It became fully operational and certified by the US Navy off southern California on August 1, 2006, when Chief Navy Diver Daniel Jackson submerged to . From the project's beginning until 2011, the US navy spent $113 million on the ADS. See also References Further reading External links ADS database in therebreathersite.nl "Metal Diving Suit Has Lamps and Phone", January 1931, Popular Mechanics "Robot Diving Ball To Speed Deep Sea Salvage" Popular Mechanics, September 1935 Hard Suit Historic Armored Suits Atmospheric suits US Navy Chief goes to Diving environmental protection equipment Environmental suits