Model Tests to Compare Capsize Resistance of the USCG (United States Coast Guard) 44' MLB (Motor Lifeboat) and Proposed 47' MLB in Breaking Waves

摘要

The U.S. Coast Guard has designed a new 47 foot Motor Lifeboat which has twice the design speed of the existing 44 foot Motor Lifeboats. Because of the difference in design speeds, the hulls are considerably different. This report documents model tests and techniques used to compare the capsize resistance of the two boats in beam-sea breaking waves. The new 47 foot Motor Lifeboat was found to be less prone to capsize than the older 44 foot Motor Lifeboat. Keywords: Computerized simulation; Model tests; Model basins; Wave tanks. (jhd)