Abstract
This paper presents the results of model tests carried out on two alternate hull configurations for a proposed deep-submersible vessel. The experiments consisted of resistance tests, propeller tests, self-propelled tests to derive the propeller-hull interaction effects for a range of vehicle drags (corresponding to different amounts of externally-mounted, resistance-increasing equipment), and Pitot-tube wake surveys carried out in way of the propeller plane. The two configurations differed in respect to the relative stubbiness of their afterbodies, both having a single relatively large diameter, stern-mounted propeller. The data are analyzed and comparisons are made with alternate propulsion configurations. The influence of propeller diameter on power and rpm is studied. A discussion of relevant data available in other sources is presented. A recommendation is made to carry out full-scale resistance tests of deep-submergence vehicles by the method of free deceleration.
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