Accession Number:

AD0645695

Title:

HYDRODYNAMIC TESTS OF HERCULES SEA UNIT XWO-1,

Descriptive Note:

Corporate Author:

NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s):

• Min,Sherman L.

Report Date:

1966-09-27

Pagination or Media Count:

18.0

Abstract:

The Lightweight Helicopter Remote Classification and Localization System HERCULES sea unit, XWO-1, was hydrodynamically tested. The results showed that the sea unit, with a 2 degree hydrophone, was tilted by a water current. By using a plexiglass fairing with the hydrophone, the tilting was greatly reduced. The tilting of the sea unit would reduce the effective range of the system. Several concepts are proposed to reduce the tilting problem. Author

Descriptors:

• *SONAR EQUIPMENT
• HYDRODYNAMICS
• HELICOPTERS
• TOWING VEHICLES
• HYDROPHONES

Subject Categories:

• Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE