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 in the deep sea. The …
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 150 arm, it was finally …
1968-69 – Deepstar 2000 Diving Saucer by Westinghouse. The manipulator arm is simple as per all Cousteau/Westinghouse submersibles of this period with only two degrees of freedom. The arm is electro-hydraulic and the claw is of the clam-shell type, also referred to as an "orange peel" claw. Arm is also mechanically jettisonable for safety reasons. …
Image source: Popular Mechanics, August 1963. 1962 – Deepstar 4000 Diving Saucer – Jacques-Yves Cousteau / Westinghouse launched in 1965. 26 Jun 1962-NEW YORK: William E. Knox, president of Westinghouse International, demonstrates the flexibility of a remote control arm, part of a unique deep-sea vehicle at a 6/26(/62) press conference. The new self-propelled vehicle, to …
 The SP-350 Denise, famous as the "Diving saucer" (Soucoupe plongeante), is a small submarine designed to hold two people, and is capable of exploring depths of up to 400 metres (1,300 ft). It was invented by Jacques-Yves Cousteau and engineer Jean Mollard at the French Centre for Undersea Research. It was built in the …