At-Sea Evaluation of the Hydrodynamic Performance of a Simulated Depressor-Towed Array

Abstract

This report gives details of a sea trial evaluation of the hydrodynamic performance and stability of a depressor-towed array system for the Office of Naval Research (ONR). For these hydrodynamic evaluations, a simulated towed array was used. Speeds of up to 30 knots were attained with no adverse effects of towline kiting. A depth of 75 m (245 feet) was obtained at a towline scope of 207 m (680 feet) at 30 knots. Dynamic performance was assessed during towship accelerations, decelerations, and maneuvers. The system responded very quickly to these speed changes and maneuvers and at no time gave any indication of instability. It was concluded that the ONR high-speed, depressor-towed array system is hydrodynamically stable up to at least 30 knots and is ready for high-speed acoustic evaluation.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1981
Accession Number
ADA099764

Entities

People

  • David W Taylor
  • J. S. Diggs
  • P. Rispin

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Bodies
  • Coefficients
  • Deceleration
  • Frequency
  • Geometry
  • Instability
  • Instrumentation
  • Materials
  • Measurement
  • Military Research
  • Notation
  • Oceanography
  • Reynolds Number
  • Steady State
  • Surfaces
  • Towed Arrays
  • Weight

Readers

  • Instructional Design and Training Evaluation.
  • Marine Hydrodynamics