The naval architect's and shipbuilder's pocket-book of formulae, rules, and tables and marine engineer's and surveyor's handy book of reference (1884)
Mackrow, Clement · London, C. Lockwood and co. · leaf 208
e of the sails with the ships course (see fig. 148). E = Dsin2 0. c = Ecosa. Ci==Esina. In fig. 148 let PC represent in magnitude Fig. 148. and direction the pressure of the apparentwind on the sail AB ; through P draw PRparallel to ab ; through c draw CR per-pendicular to PR and cutting PR in… … 200 railing; Table of Direct Impulse of Winds ix Lbs. per SquareFoot, axd Sails commonly set by the Wind, Velocityiii Kuotsper Hoitr 1 23456789 10111213U151617181920 2224 262830 323436 3840 455060708090100 Impulse Name of Windin lbs. I •0067 •027 •060 •107 •167 •240 •327 •427 •540 •667 •807 •960…