Correlation of Resistance Test Results from Fixed- and Free-to-Trim Methods for a Dynamic-Lift Craft (Model 4667).
Research and development rept.,
NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD
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Customary methods are discussed for determining the resistance characteristics in smooth water of hulls of planing and hydrofoil craft. Results are presented and comapred for a hull, with possible application to either type of craft, which has been tested by both the fixed-trim method, generally used for hydrofoil craft, and the free-to-trim method, generally used for planing craft. Recommendations are made for conducting future resistance tests of dynamic-lift craft, i.e., both planing and hydrofoil hulls, in the fixed-trim mode as well as for converting the data to the form of free-to-trim test data to facilitate general design studies for both types of craft. Author
- Marine Engineering
- Fluid Mechanics