













» SINSLE SCREW DESIGN 

 D TWIN SCREW DESIGN 



dt LUCE, 1 

 DISCUSSION 



1.0 













^ FOR MEAN 'XiPTUHN" SPEED 

 L = L,p FOR SINGLE SCREW SHIPS 















L = L^^,jFOR TWIN SCREW SHIPS 

 D SERIES 60 PARENTS 



0.9 













°~ A LIMITS OF SERIES 60 VARIATIONS 

 O SERIES 60 HOOELS FOR OPTIMUM 







ii-- 



< 



-^ 



r 



— o. 



^ 















[ 



1 



Px 



N 





•°c 



• "-, 



»^ 



O 













\ 

 \ 









\ 



( 



1 



o 



/ 



X 

 \ 











0.7 



\ 



s ^ 





^ 



^ 



H 



k. 





• 



\ 

 \ 











^-<., 



■"^^ 







S 



s* 





•• 



n 



\ 







0.6 













'"^i 



\ 



\ 



Kv 























\ 







^ 



i— 







5 





























1.0 oj 1.0 



LCB POSITION AS PERCENT L. 



ao 



FROM iSn 



4.0 



FWD 



Figure 24 — Comparison of Series 60 with U. S. Data, 



V 

 —=r and LCB 

 yjL 



Figure 25 — Comparison between the (c) Values for Models of Actual Ships 

 and Series 60 Equivalents 



©g 





















Model 



Description 



Curve 



Cb 



C^ 



Cp 



L 



L 



L 



L 



»i-c 





















42 low 



Series 60 parent 







- 



0.600 



0.978 



0.614 



0.515 



0.50 



~ 



0.50 



7° 









4414 



MARINER as built 





0.610 



0.981 



0.622 



0.5J5 



0.50 



- 



0.50 



8° 







4440W 



MARINER without bulb 







0.611 



0.982 



0.622 



0.516 



0.50 



- 



0.50 



7.5° 

















Series 60 equivalent 

 (Series 60 parent cor- 

 rected to MARINER 

 dinensions) 



o o 

























1 

 MARINER tWITHC 



1 



LIT BUL 



B 



<" 





























1 1 1 

 mariner as built , 

 1 is/ 



'/ 



























SERIES 60 EOUiVALENT 

 TO MARINER 

 (ESTIMATED) 1 



j> 



/y 



'/ 



























4 



^ 



























_^^^ 



—- 



--- 



IJ- 





'SERIE 



S 60 PA 



RENT 



















riS 









TF 



OOST 





i SER 



1 



VICE SF 



"^1 1 

 EED TRIAL SPEED 



























ALEXANDER 

 1 1 



I 





1 





f 





© 



Figure 25a — Comparison, Series 60 arid MARINER Class 



V-19 



