Table 42 — Principal Particulars of Models 



LWL, ft 



Lbp, ft 



5, ft 



H.h 



A, tons 



'AaE, deg 



*WS, sq ft, (Model 4280) . 

 *WS, sq ft, (Model 4281). 

 *WS, sq ft, (Model 4282) . 



400-ft ship 

 406.7 

 400.0 

 57.14 

 22.86 

 10456 

 11.6 

 31859 

 32008 

 31759 



600-ft ship 

 610.0 

 600.0 

 85.71 

 34.29 

 35289 

 11.6 

 71683 

 72018 

 71458 



L/B 7.00 



B/H 2.50 



L/V' 5.593 



A/(Z,/100)» 163.4 



5/V2/3(4280) 6.230 



5/v2'3 (4281) 6.260 



5/V2/a (4282) 6.210 



Lb/Lbp 0.420 



Lx/Lbf 0.119 



Lr/Lbp 0.461 



Does not include rudder. 



Hull Coefficients 



Cb 0.700 



Cx 0.986 



Cf 0.710 



CPF 0.700 



CpA 0.721 



CpE 0.642 



CpR 0.698 



LCB, per cent LBP from 



Section Coefficient r 



Series 60 — Forms 



Parent form Model 4280: 



U-shaped form Model 4281 : 



V-shaped form Model 4282: 



Average Values 



Moderate stern sections 



Extreme U-shaped stem sections 



Extreme V-shaped stern sections 



Cpv 0.890 



CpvF 0.950 



CpvA 0.846 



Cw 0.787 



CwF 0.734 



CwA 0.841 



CiT 0.651 



m 0.55A 



= 



0.359 

 0.179 

 0.543 



= 



0.500 



0.20 



0.75 



Figure 60 - Comparison of .Afterbody Lines 

 of 0.70 Block Parent Stern Variations 



Figure 61 - Definition of Section Shape 

 Coefficient 



XI- 2 



