Some Computed Effects of Fresh Water in the Sonar Dome of the AN/SQS-26

Abstract

This technical note presents computed results and conclusions on the effects in the vertical patterns produced by fresh water in the dome cavity of the AN/SQS-26 at a relative bearing of 80 deg and at a depression angle of 30 deg. Recent tests on the U.S.S. Wainwright revealed serious errors in the vertical directivity pattern for the depressed beam. It has been suggested that the errors were produced by fresh water in the dome. This note presents computed estimates of the errors produced by the fresh water. Also, it was suggested that a temperature differential between the water in the dome and the sea water may have existed. Results of a 'worst case' analysis on the combined effects of fresh water and temperature differential are presented.

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Document Details

Document Type
Technical Report
Publication Date
Jun 11, 1966
Accession Number
ADA067392

Entities

People

  • G. T. Kemp
  • J. D. Morell

Organizations

  • Tracor

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Computations
  • Depression
  • Depression Angles
  • Distortion
  • Fresh Water
  • Phase
  • Phase Distortion
  • Phase Shift
  • Salt Water
  • Sea Water
  • Sonar Domes
  • Sonar Equipment
  • Water

Readers

  • Mathematics or Statistics
  • Oceanography.
  • Phased Array Antenna Design.