The Unmanned Free-Swimming Submersible (UFSS) system was designed and built by the Advanced Ocean Vehicles Branch of the Naval Research Laboratory (NRL) and its various contractors. It is a technology demonstration vehicle and consists of a collection of subsystems, each of which was developed independently and then integrated into the vehicle system as a whole. The accompanying Report describes each subsystem in detail and makes reference to three Appendices, which contain detailed drawings, vendor materials, and the cable book for the electrical system of the vehicle. The UFSS is a demonstration vehicle developed to prove out the feasibility of an unmanned submersible operating in an autonomous mode over long distance. It uses standard batteries as the energy source, a microprocessor-based guidance and control system, a low drag hull shape for energy conservation, an oil-filled, variable frequency/variable voltage ac motor for propulsion, and a microprocessor-based navigation system using dead reckoning with periodic updates from the worldwide OMEGA system. Also on board is a failsafe system that monitors the vheicle and initiates corrective action in case of trouble or malfunction.


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    Title :

    Unmanned Free-Swimming Submersible (UFSS) System Description


    Contributors:
    H. A. Johnson (author) / P. B. Alers (author) / L. M. Buckler (author) / E. W. Carey (author) / E. C. Czul (author)

    Publication date :

    1980


    Size :

    117 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    The NRL unmanned free-swimming submersible (UFSS)

    Alers, P.B. / Johnson, H.A. | Tema Archive | 1980


    The NRL Unmanned Free-Swimming Submersible (UFSS)

    P. B. Alers / H. A. Johnson | NTIS | 1980



    FUZZY DEPTH CONTROL OF AN UNMANNED FREE-SWIMMING SUBMERSIBLE VEHICLE

    Li, C. / Chen, Y.-C. / IEEE | British Library Conference Proceedings | 2002