Table 39 - Particulars of 600-Ft Ships Corresponding to Series 60 Models 



Cj 0.60 





0.65 







0.70 





0.75 







0.80 







LBP. ft 600.0 





600.0 







600.0 





600.0 







600.0 







B,ft 

 H, ft 



80.0 





82.76 







85.71 





88.89 







92.31 







32.0 



26.5" 



20.6 



33.14 







34.29 



28.0" 



21.6* 



35.55 



.... 







36.93 



30.0*' 



22.8 1 





A, tons 



L_ 



B 



B_ 



H 



26349 



21080 



15810 



30547 







35289 



28230 



21170 



40662 









46774 



37420 



28060 





7.5 





7.25 





7.0 



6.75 





6.50 







2.50 



3.02 



3.88 



2.50 







2.50 



3.06 



3.97 



2.50 









2.50 



3.08 



4.05 





LCB" 





































L 



0,515 







0.505 







0,495 



.... 





0.485 









0.475 









Number 



2422 



3378 



3375 



2852 



3380 



3375 



2852 



3376 



2J66 



2828 



3379 



3066 



3648+ 



1356 



3377 



2944 



3645^ 



0, ft 



25.62 



22.40 



21.37 



26.40 



23.20 



21.37 



26,40 



24.00 



22.00 



26.83 



24.89 



23.00 



18.06 



27.00 



25.82 



22.00 



19.25 



p.n 



25.62 



24.08 



20.30 



26.61 



25.52 



20.30 



26.61 



26.40 



20.75 



28.23 



25.51 



22.24 



14.90 



24.52 



23.75 



18.70 



19.25 



P/D 



1.00 



1.075 



0.95 



1.008 



1,100 



0.95 



1.008 



1.100 



0.943, 



1.052 



1.025 



0.967 



0.825 



0.908 



0.920 



0.850 



1.000 



BAR 



0.456 



0.550 



0.536 



0.454 



0.525 



0.537 



0.454 



0.500 



0.519 



0.456 



0.475 



0.515 



0.548 



0.448 



0.450 



0.583 



0.549 



BTF 



0.044 



0.045 



0.045 



0.047 



0.045 



0.045 



0.047 



0.045 



0.056 



0.042 



0.045 



0.055 



0.045 



0.044 



0.045 



0.047 



0.045 



Rake, deg 



6.5 



6.0 



6,0 



4.76 



6.0 



6.0 



4.76 



6.0 



7.71 



5.0 



6.0 



5.38 



6.00 



3.75 



6.00 



4.76 



6.00 



Number of 





































Blades 



4 



4 



4 



4 



4 



4 



4 



4 



4 



4 



4 



4 



4 



4 









Blade area 



































sqft 235 



216 



192 248 



222 



192 



24« 



226 



197 



258 



231 



214 



140 



257 



236 



222 



160 



Note: 'LCB 

























— — Measured from forward perpendicul 



' 



+ Previ 



usty use 



i on Model 4278 

















"Trim by stern = 1 percent LBP 





A Previ 



usiy use 



don Models 4265, 4275 















tTrimbystern= 2.5 percenttCP 

























The details of the propellers and hulls referred to a ship length of 600 ft LBP are 

 shown in Table 39. In fitting the different diameter propellers, the shaft centerline 

 was altered vertically to maintain the same vertical position of the blade tips at their lowest 

 point in the disk, and so also the same minimum clearance between blade tips and the rudder 

 shoe. This was considered to be the more practical approach rather than fitting all propellers 

 to the same shaft elevation. In the latter case, the hull lines would have to be adapted to 

 the largest propeller, with excessive clearances for the smaller ones, and with these any 

 advantage inresistance which might result from a lower and longer cruiser stern would be 

 lost. The end lines from Station 18 aft were modified to suit the different apertures, and the 

 rudder area was kept constant by narrowing the rudders associated with the larger diameter 

 propellers. 



The stern lines and aperture arrangements are shown in Figures 41 through 45, and 

 the curves of power, wake, thrust deduction and other data in Figures 46 through 50. These 

 figures all apply to ships of 600 ft LBP, as in the case of Chapters VII and VIII. The 

 extrapolation used was the ATTC 1947 line, with a ship correlation allowance of +0.0004. 

 During these tests, which chronologically were run before the LCB and geometrical variation 

 series, turbulence was stimulated by studs and no bilge keels were fitted. The propulsion 



(Text continued on page X-11. ) 



X-2 



