商船の基本計画におけるLinesの急速作製法について(第2報)

概要

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In this paper, the author proposes a new quick drawing process of the lines of under water form for the basic design of merchant ships having block coefficient ranging between 0.65 and 0.80.With systematic hand works, this process needs less labour than the customary process.The key points of this process are as follows : -(1) Drawing the sectional area curve from standard series of sectional area curves with C_<⦻> and 1_<ob> corrections.(2) Picking up the offset points on the standard size from the offset curves.(3) Drawing the body plan of actual size from standard size by means of the similar translation method.This item(1) was already described in the first report, and the item(2) and the item(3) are reported in this second report.Nomenclature.L=Length between perpendiculars B=Moulded breadth B_0=B for standard size D=Moulded depth d=Designed moulded draught d_0=d for standard size C_b=Block coefficient U=U form M=Medium form V=V form W.L.=Water line B.L.=Base line C.L.=Center line