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A plot of drag against speed
for each of the models is shown on Figures 12 and 13.
When towed from the bow, the
monohull models often became unstable at high speeds and would yaw from
one side of the channel to the other. The monohull models were generally
stable when towed from the stern. The trimaran model was stable in both
directions.
It was also noted that the
monohull models developed more dynamic lift when towed from the stern and
showed less tendency to "bury." A photograph of model No. 2 during testing
is shown on Figure 14.
No attempt was made to
correct for Reynolds Number effects since such refinement is unwarranted
for this application.
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