ANALOG STUDY AND PERFORMANCE OF THE NEW 440-FT FERRIES FOR THE STATE OF WASHINGTON

This paper describes the ac-rectified dc propulsion system designed for the two Washington State ferry vessels, MV Spokane and MV Walla Walla, and reports the results of an analog study conducted as a design tool. Similar data are presented showing the results obtained by recording electrical system performance during builder's trials. These super-class ferries have an 8500-hp, double-armature, direct-current motor installed at each end of the vessel. The power produced by four diesel-generator sets is normally divided 90 percent stern and 10 percent bow or 8500 hp stern, 850 hp bow for a total delivered shaft horsepower of 9350. At the rated speed and capacity, the operation is exceptionally economical, averaging over 85 miles per gallon per passenger for fuel oil.

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  • Corporate Authors:

    Society of Naval Architects and Marine Engineers

    601 Pavonia Avenue
    Jersey City, NJ  United States  07306-2907
  • Authors:
    • Beverly, J A
    • Koch, R L
    • Stewart, E C
    • Weiks, J
  • Publication Date: 1975-4

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Filing Info

  • Accession Number: 00095512
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 10 1975 12:00AM