Technical Evaluation of the 60 Foot Small Waterplane Area Twin Hull (SWATH) Ship HALCYON

Abstract

A technical evaluation of the 60 foot SWATH ship HALCYON built by RMI, Inc., National City, California was conducted by the Coast Guard Research and Development Center. Ship motions were measured aboard the vessel in five headings relative to the 7.4 foot significant seas while cruising at 17.5 knots and in head and beam seas while dead in the water. Ship response amplitude operators (RAOs) were computed for roll, pitch, and heave motions. Ship motions are compared between the HALCYON and an 82' Coast Guard Patrol Boat (WPB) in the same 5 foot sea state using RAOs. Calm water engine horsepower and fuel consumption data were collected, along with towing, bollard pull, noise levels, maneuvering and tactical data. Conclusions are presented on the utility of SWATH ships for rough water area operations in support of Coast Guard patrol boat missions. Keywords: SWATH, HALCYON, SD-60, Technical evaluation, Seakeeping, Tactical data.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1987
Accession Number
ADA198995

Entities

People

  • Thomas J. Coe

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Sensors

DTIC Thesaurus Topics

  • Birds
  • Coast Guard
  • Computer Programs
  • Computers
  • Control Panels
  • Control Surfaces
  • Control Systems
  • Data Acquisition
  • Measurement
  • Metacentric Height
  • Motion Sickness
  • Plastic Explosives
  • Propulsion Systems
  • Strain Gages
  • Test And Evaluation
  • United States
  • Wave Power

Readers

  • Marine Hydrodynamics
  • Maritime Security/Maritime Homeland Security