A general tank test of NACA model 11-C flying-boat hull, including the effect of changing the plan form of the step

Dawson, John R
naca-tn-538
August 1935


The results of a general tank test model 11-C, a conventional pointed afterbody type of flying-boat hull, are given in tables and curves. These results are compared with the results of tests on model 11-A, from which model 11-C was derived, and it is found that the resistance of model 11-C is somewhat greater. The effect of changing the plan form of the step on model 11-C is shown from the results of tests made with three swallow-tail and three pointed steps formed by altering the original step of the model. These results show only minor differences from the results obtained with the original model.

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http://naca.central.cranfield.ac.uk/reports/1935/naca-tn-538.pdf