The Submarine Torpedo Boat
Its Characteristics And Modern Development

DESIGN OF THE SUBMARINE TORPEDO BOAT 79 moderately fine, .45 for ships broad in proportion to length but with fine lines, .5 for freighters. Table I Surface-Friction Constants for Paraffin Models in Fresh Water Exponent n = 1.94 Length Ft. Coefficient Length Ft. Coefficient Length Ft. Coefficient 2 0.01176 10.0 0.09937 14.0 0.00883 3 0.01123 10.5 0.00928 14.5 0.00877 4 0.01083 11.0 0.00920 15.0 0.00873 5 0.01050 U.S 0.00914 16.0 0.00864 6 0.01022 12.0 0.00908 17.0 0.00855 7 0.00997 12.5 0.00901 18.0 0.00847 8 0.00073 13.0 0.00895 19.0 0.00840 9 0.00953 13•5 0.00889 20.0 0.00834 Table II Surface-Friction Constants for Painted Ships in Sea Water Exponent n = 1.825 FROUDE Length Ft. Coefficient |Length I Ft. Coefficient Length Ft. Coefficient 8 0.01197 40 0.00981 180 0.00904 9 0.01177 45 0.00971 200 0.00902 10 0.01161 50 0.00963 250 0.00897 12 0.0II3I 60 0.00950 300 0.00892 14 0.01106 70 0.00940 350 0.00889 16 0.01086 80 0.00933 400 0.00886 18 0.01069 90 0.00928 450 0.00883 20 0.01055 100 0.00923 500 0.00880 25 0.01029 120 0.00916 550 0.00877 30 0.01010 140 0.00911 600 0.00874 35 0.00993 160 0.00907