206 
THE PROBLEM OF THE HULL AND ITS SCREW PROPELLER. 
Condition 7. 
Hull. Propeller. 
1 Is Whe IS INiummaben seve el Pee ae Ret 4 
B= Bad es Puy un On TDR Age ann og 3 
lls TENG} 70) ily MRNA i Hnt Standard 
B+L. L. W. L.=.162 JD) Cala snRNA USES 12.863/ 
Nom. B. C.=.646 SPENT DAN USAC EON MIAD Me a 11.209’ 
B. C. on C—D=.595 124s Dear ael D Bhs Maar ales 4247 
H~B=.2097 11D Secale ORNS aes ag ee 9,000 
H 
B. C. on C—D corrected for B= 455 TROGIR Ee a eats BY tar eR etae 2,502 
S. B. C. on X=.49 Tee P At a els, S00 AG ee Mie 865 
I J IBS Leer Gieral NRE Renan RAIN A 21.61 
2L. A. B.+H=20.82 TESA Rspayier hea a Peed MRA T RCH ar 6.62 
S=.135 Tu ES Soe ener Papa ROME ARES 37,404 
MT sCs— Ware wwe ahs ats O ria kiseks Gini .603 
K= AEP EMO 0a ic even ratte HN 22,556 
Sed Le ed ae a area ag at 34,412 
Analysis 
ees v a on |S.H.P.g is 
/Hleh.p.| tank V KZ K|S.H.P.a| faired | for u. | Zs S s Me 
vie Est for v1 
Ua mp22 56H hat .5091 | —1.0414] 1| 3128 | 11.25] 3250] +.75 | .135 | .069 | 106.8 | 102 
.2| 4512 | 13.86} .6415| — .7279]1]| 6439] 14.0 | 6550] +.46 | .135| .0729| 135 | 129.6 
.3| 6768 | 15.75 | .729 | — .5445| 1] 9822] 16.12] 9850 | +.305 | .135 | .0778 | 154.4 | 151.3 
.4| 9024] 17.25 | .7984 | — .4144 | 1 | 13253 | 17.67 | 13200] +.198] .135 | .082 | 169.9 | 168 
.5 | 11280 | 18.4 | .8517| — .3135 | 1| 16719] 18.8 | 16750] +.118 | .135 | .0861 | 182 | 181.7 
.6 | 13536 | 19.3 | .8933 | — .231 | 1 | 20217] 19.7 | 20300] +.061 |] .135 | .0913 | 192 | 190.6 
.7 | 15788 | 20.05 | .928 | — .1613 | 1 | 23736 | 20.34 | 23700 | +.015 | .135 | .0964 | 200.6 | 198.6 
.8 | 18048 | 20.7 | .9581 | — .1009 | 1 | 27278 | 20.85 | 27250] 0 .135 | .107 | 209.6 | 206 
.9 | 20304 | 21.15 | .9789 | — .0477 | 1 | 30833 | 21.25 | 31100] 0 .135 | .1131 | 215.6 | 213.5 
1.0 | 22556 | 21.45 | .9928| 0 1 | 34412 | 21.55] Of 0 /135,|||435 || 224.2) oom 
curve 
DESIGN OF THE PROPELLER. 
In treating this subject an attempt will be made to be as brief as possible, 
confining the discussion entirely to the precautions that must be taken in deciding 
upon the initial point of the design and to the formulas used in obtaining the 
design. 
*The data omitted are confidential and therefore cannot be made public. 
