An investigation was conducted to determine, for one representative hull form, the effect on some of the aerodynamic characteristics of systematic variations in the shape and disposition of the chines at and near the bow and in the depth of the step. The parent hull was of conventional design (length-beam ratio equal to 6.7) and had a depth of step equal to 8 percent of the beam. The investigation was conducted at a Reynolds number of 6.4 x 106 based on the model hull length and all the tests were made with the hull attached to a wing which completely spanned the tunnel.
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