Marine waterjet recently was introduced as potential prime mover for smaller naval craft; underwater noise producing characteristics of these jets have been investigated by U S Naval Engineering Experiment Station and compared with those of standard propeller driven unit; waterjet unit investigated was axial type pump coupled directly to standard 6-cyl gasoline fueled marine engine rated at 100 hp; differences in type of noise, noise spectra, etc, are reported; based on 20 db difference between 2 power drives, indications are that conventional propeller craft could be detected at distance 10 times farther away than waterjet; applications are noted. Reprinted from BuShips J Aug 1963.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Water jets make less noise


    Additional title:

    Naval Engrs J


    Contributors:
    Schab, H.W. (author)

    Published in:

    Publication date :

    1964


    Size :

    3 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





    Jets (Less than 20,000 lb MTOW)

    British Library Online Contents | 2001


    Jets and Noise

    H. S. Ribner | NTIS | 1968



    Phosphorus Moieties Make Polymers Less Flammable

    Kourtides, D. A. / Mikroyannidis, J. A. | NTRS | 1992