German shipbuilder Heinrich Hartung has designed craft for diving to depths of 22,000 ft; it is based on principle of helicopter, is far easier to manage and has less water resistance than any similar apparatus ever constructed; it dives down by means of 2 propellers, and has turnable rear propeller for steering; light gasoline in hollow bodies is compressed when boat dives and water takes place of gasoline; it will be useful in searching for wrecks and crashed aircraft, possibly for reclaiming oil or sea plants, etc. From Can Shipg and Mar News Jan 1962. (formerly Am Soc Naval Engrs -- J)
Submarine helicopter is proposed for diving to amazing depths
Naval Engrs J
Naval Engineers Journal ; 74 , n 2
1962
Aufsatz (Zeitschrift)
Englisch
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