Boating Accident Investigations 1972; Part II--capsizing and Swamping
Defense Technical Information Center, 1973 - Boating accidents - 231 pages
The report describes an investigation of capsizing and swamping accidents of pleasure boats under 20 feet in length during the 1972 season. The study, which was confined to accidents occurring within the continental United States, was aimed at: (1) identifying general boat design problems involved in such accidents, (2) determining if the problems exist despite compliance with existing Standards or because of a lack of compliance, (3) determining possible areas not adequately covered by present Standards, and (4) helping to develop investigation and analysis methodologies for continuation of the program. The report describes the field investigation methodology and test procedures as well as a supplementary computer program used in place of extensive water testing. For each accident, estimates are made and tabulated of the contributions of various causative factors. On the basis of the limited data obtained, recommendations are made as to areas which may require consideration and further study with respect to safety standards. (Author).
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Accordance With 33 aft seat applied weight approximately bilge pump boat length BOAT LINES bow station buoyancy Capacity In Accordance capsizing caused the boat cell was placed center of gravity CFR l83 chine cockpit deck computer calculation Computer Determination COMPUTER PROGRAM Determination Of Quantity downflooding point number engine balanced engine cutout enter the hull factor feet Draft feet outboard fiberglass field test flooding occurred Flotation In Accordance forward seat free water freeboard Full Fuel Tank Gravity Test horizontal center hull sheer line hull weight inboard inches Inclining Test KNOWN CHANGES line was drawn load cell load was estimated maximum displacement maximum horsepower maximum weight capacity outboard engine owner/operator performance requirement points were established pound load Quantity Of Flotation reference grid reference line runabout Section simulated by computer stern study was simulated Submerged Weight swamping Table of Offsets test load total weight transom cutout trim water filled plastic water test