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1973 – Under Sea Mobility – Ralph Mosher (American)

Underwater Army Bases and Depot (See Figure 51: Under Sea Mobility) Recent marine biology and ocean engineering work have resulted in some startling underwater activity concepts and systems designs that promise to pave the way to a profitable exploitation of untapped water resources. It is not difficult to argue that…
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1971 – Trieste II Submersible – (American)

1971 - Trieste II Submersible with Manipulator Arm. DSV-1 Trieste II When the submarine Thresher was lost on 10 April 1963, a committee established under Admiral Stephan [the Oceanographer of the Navy] to assess the implications of the accident concluded that the Navy did not have the operational assets to conduct missions…
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1968 – Beaver Mark IV Submersible – Rockwell (American)

1968 – Beaver Mark IV Submersible by North American Rockwell. Renamed "Roughneck" in 1969. Each of the two manipulators has a 9-ft reach, eight degrees-of-freedom, and a 50-lb lifting capacity. The two manipulators can be equipped with nine different tools to perform various tasks. These tools are: impact wrench, hook…
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1961 – Trieste Submersible with Manipulator – Harold Froehlich (American)

1961 - Trieste Submersible with Manipulator Arm by Harold Froehlich - General Mills. Image source: Manned Submersibles, Frank Bushby, 1976. The Trieste was purchased by the U.S. Navy in 1958. Development of the manipulator arm, instigated by Don Walsh, was done by Harold "Bud" Froehlich of General Mills. Based on the Model…
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