EFFECT OF LENGTH-BEAM RATIO ON THE PERFORMANCE OF A STEPPED PLANING BOAT WITH AN ADJUSTABLE STERN STABILIZER

Abstract

Two models of stepped planing boats were tested to determine the effect of change in length-beam ratio. The models were tested with the same adjustable stern stabilizer at several loads and LCG locations. The model with the lower length-beam ratio (L sub P/B sub BX = 3.4) had considerably more resistance than the other stepped model (L sub P/B sub PX = 4.7) at low speed and slightly less resistance at high speed. The resistance of both stepped designs at high speed was considerably less than that of a representative unstepped planing boat design.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1967
Accession Number
AD0825515

Entities

People

  • David W Taylor
  • Eugene P. Clement

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Afterbodies
  • Aspect Ratio
  • Bodies
  • Center Of Gravity
  • Coefficients
  • Commerce
  • Compressed Air
  • Contracts
  • Displacement
  • Export Controls
  • Froude Number
  • Hulls (Marine)
  • Model Tests
  • Planing Surfaces
  • Resistance
  • Security

Readers

  • Analytical Mechanics
  • Marine Hydrodynamics