Transactions Society Naval Architects and Marine Engineers, Vol. 24, 1916. Plate 59. 
To illustrate paper on “A Theory of Fluid Friction,” 
by William Gatewood, Esq., Member. 
FIG.5 
CHANGE IN VEPTH AT ROUGH LENGTH 
SE 
OPEN TROUGH 
HEA? FIRST VECREASING AS VEPTH INCREASES 
AND THEN HEAVY INCREASING SLIGHTLY 
4 ze 8 ° 29°@. 
rg Ld > San ae ¥. 
ROVGH 
0) 
3 
(=) 
8 
a 
FIG.6 
CHANGE IN DEPTH AT ROUGH LENGTH 
SHE Ee RR WNGE SuNuae wKsi Sha CeuNN@ NE SmNE a SaEeaaT 
OPEN TROUGH 
HEAP FIRST BVECREASING AS VEPTH 
“ REASES ANT THEN HEAVY INCREASIN 
© GREATER THAN INITIAL HEA 
E acess 
FRIC Ti on 
