HAZARD-COLLISION AVOIDANCE SYSTEM FOR NAVY HYDROFOILS (NOSC SYSTEM ILLUMINATOR IS AN INEXPENSIVE APPROACH TO ACTIVE LLLTV; GEOMETRY OF ILLUMINATOR, CAMERA, AND TARGET MINIMIZES BACKSCATTER AND MAXIMIZES CONTRAST

Navy hydrofoils and other fast ships are threatened by small targets in the water which are normally no hazard at all to larger, slower ships. In collisions with a ship traveling faster than 40 knots, debris such as logs and poles and objects such as buoys are hazards. Over the past several years, several organizations have been developing hazard-collision avoidance systems. Some of these systems, while effective, are expensive. Others, while affordable, are marginally effective. Under a developmental contract with NAVSEA 03 NOSC has been developing an approach to this problem which promises both low cost and maximum effectiveness. This report reviews several past approaches. It covers the present NOSC approach and presents pictorially the results of those portions of the approach for which there are functioning models to test. It also discusses parts of the approach which are still in the developmental stage. (Author)

• Corporate Authors:

  Naval Ocean Systems Center

  San Diego, CA  United States 
• Authors:
  • Borough, C K
• Publication Date: 1977-6-10

Media Info

• Pagination: 19 p.

Subject/Index Terms

• TRT Terms: Analysis; Costs; Crash avoidance systems; Debris removal; Floating structures; Hazard evaluation; Hazards; Hulls; Hydrofoil boats; Hydrofoils; Infrared imagery; Light; Ship pilotage
• Uncontrolled Terms: Cost analysis; Debris; Floating bodies
• Old TRIS Terms: Active systems; Artificial illumination; Forward looking infrared systems; Forward looking television; Hull damage prevention; Hydrofoil craft; Hydrofoil damage; Low light levels; Surface navigation; Surface targets; Visual targets
• Subject Areas: Bridges and other structures; Finance; Marine Transportation; Operations and Traffic Management;

Filing Info

• Accession Number: 00168546
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NOSC/TR-125 R&D Rpt.
• Files: TRIS
• Created Date: Dec 27 1978 12:00AM