STABILITY OF TOWFISH AS SONAR PLATFORMS AND BENEFITS OF THE TWO-PART TOW

PDF

Authors
  1. Preston, J.M.
Corporate Authors
Defence Research Establishment Pacific, Victoria BC (CAN)
Abstract
Stability is a very important characteristic of the vessel or body on which a sonar is mounted. With normal tow configurations, stability requirements are often not met by a towfish in moderate sea states, particularly with short cable lengths. The trial described here demonstrates that the two-part tow, which uses a down weight and a neuturally buoyant towfish, significantly reduces towfish motion. In particular the two-part tow effectively suppressed pitch and accelerations. However towfish yaw, which was shown to be caused by lateral motions of the ship's stern, was still significant, and yaw is particularly important to sonar image quality.
Report Number
DREP-TM-89-19 — Technical Memorandum
Date of publication
15 Dec 1989
Number of Pages
48
DSTKIM No
90-03590
CANDIS No
65839
Format(s):
Hardcopy;Originator's fiche received by DSIS;Document Image stored on Optical Disk

Permanent link

Document 1 of 1

Date modified: