Page:United States Statutes at Large Volume 47 Part 2.djvu/698

 2302 INTERNATIONAL LOAD LINE CONVENTION. JULY 5, 1930. f2 is a coefficient depending on K, which is the vertical distance in feet from the top of the lowest tier of beams at side to a point 7 feet 6 inches above the freeboard deck at side, ~r, if there is a superstructure, to a point 12 feet 6 inches above the freeboard deck at side (see Figure 2). The values of f1 and f2 are obtained from the following tables:- ~iI i H in feeL____________ 0 7 91113151719 2 f. _____ uu____ __ ____ _ 9-: -\12.. -- --- - 15192429.5364351I5 I 9 K in feet______ 0 5 10 15 20 25 30 f 2- 0 0.5 1.0 2.0 ao 4.5 6.5 9.0 12.0 Intermediate values are obtained by interpolation. This formula applies where D is between 15 feet and 60 feet, both . I' B'b L dL bh'I'L.b mc uSlve, IS etween 10+5an 10+20, ot mc uSlve, Ds18 etween 10 and 13.5, both inclusive; and the horizontal distance from the out- side of the frame to the centre of the first row of pillars does not exceed 20 feet. In single deck ships of ordinary form, where H does not exceed 18 feet, the frame modulus determined by the preceding method is multiplied by the factor f3 where f3= .50+ .05 (H-8). Where the horizontal distance from the outside of the frame to the centre of the first row of pillars exceeds 20 feet, the Assigning Author- ity is to be satisfied that sufficient additional strength is provided.