This report documents the operational evaluation on MRBX, CG-250000, conducted by the CG R and DC from April 1973 to June 1975. The MRBX is intended for fast personnel rescue missions, achieves speeds in excess of 20 knots, and can survive 10-foot plunging surf. It will perform many missions of the 44-foot MLB, but is particularly suited to shallow inlet and bar areas not served by the 44-foot MLB. The MRBX is a hybrid craft with a deep vee planing forebody and a fully submerged fixed foil aft providing stern lift as well as improved seakeeping characteristics in surf. The craft is powered by a diesel-driven water- jet pump. The Op Eval described herein covers technical evaluation at NAVSEC Norfolk, Coast Guard operation evaluation on the Oregon coast, description of modifications performed and post construction seakeeping model testing. The Op Eval concluded that the MRBX is an effective craft for limited high speed rescue in areas having moderate surf and rough seas. (Author)

  • Corporate Authors:

    United States Coast Guard

    Research and Development Center, 1082 Shennecossett Road
    Groton, CT  United States  06340-6096
  • Authors:
    • Williams, R E
    • Hanilton, F M
    • Hudgins, H H
  • Publication Date: 1975-6

Media Info

  • Pagination: 42 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00134618
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: CGR/DC-12/75 Final Rpt.
  • Files: TRIS
  • Created Date: Jun 9 1976 12:00AM