50 ECONOMICAL CARGO SHIPS—SOME MODEL EXPERIMENTS. 
APPENDIX I. 
LIST OF SYMBOLS EMPLOYED IN PAPER. 
Mid area f 
’ Breadth X draught 
C,,= Midship area coefficient, 7. e. 
Displacement in cubic feet 
Length X mid area 
C,= Prismatic coefficient, 7. e., 
C=Froude’s resistance constant = oA ET. 
C,= Frictional resistance constant = oa x = (io 
S= Wetted surface constant = ne 
W.S. = Wetted surface in square feet ( 2 ‘ 
.09346 
V =Speed in knots. 
SA=Standard displacement = DiSpie emer) HOES 
Gay 
L.C.B. = Longitudinal center of buoyancy. 
E.H.P. = Effective horse-power ( One hh 
427.1 
A= Displacement in tons of 35 cubic feet (salt water). 
5=Draught ratio, 7. e., ue nee vs Draught X Cn, 
Beam? Beam 
e= Analysis length of entrance =1 minus prismatic coefficient of fore body. 
p=Analysis length of run=1 minus prismatic coefficient of after body. 
a= Analysis length of parallel body =twice prismatic coefficient of ship — I. 
