Accession Number:

ADD019430

Title:

Soft- Bodied, Towable Active Acoustic Module

Descriptive Note:

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Report Date:

1999-05-21

Pagination or Media Count:

15.0

Abstract:

A soft-bodied, towable, active acoustic module includes a specially formed suspension fixture and a flexible faired body enclosing an active acoustic array. The suspension fixture is a Y-shaped tube having a single forward end and two trailing ends, one for attachment of a trailing tow cable and the other for attachment of the flexible, faired body. The flexible, faired body is an elongated hydrofoil having sections which allow lateral bending. The combination of the suspension feature and lateral bending feature allows the module to be deployed and recovered through shipboard undersurface deployment tubes. A weight attached to the faired body near the lower rear end balances the body to maintain a substantially vertical position during towing. Flow steps on the lower portion of the faired body reduce lateral oscillations.

Subject Categories:

  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE