THE PROBLEM OF THE HULL AND ITS SCREW PROPELLER. 191 
To illustrate the changes occurring with type 2 vessels with true K= tp a 
passing, first from slips of first order to slips of the second order, and second from 
slips of the second order to cavitation, analyses of the performances of two vessels 
are given. The first vessel used is a Holland submarine having a basic slip of the 
first order, the problem being divided into two parts:—(a) Surface condition; 
(6) submerged condition: 
VESSEL C, 
Hull. Propeller. 
AWE 2680570 DOE NET ciate ae nnn 7 
B =| 22.16. JNU Tae. ai neh 6.25/ 
Jef = 14.16 (surface) Blades\nne ines 3 
i — 11.08’ Rrojecwiormns sen Standard 
P.A 
Nom BC.) = 24'59 DA cc 4 
B 
APRA 0825 OS RAM RDNA 8520 
= = .684 Wren Oy aye eee secon 875 
L.A.B. = aa TIS) AO MAL eae 20.91 
2L.A.B 
Tea = 24.24 LES aie a ae 6 
S840 = ARI EM eI eee ema a 4879 (two propellers) 
S) =.125 PC URAL EN ae .62 
