CHAPTER IV 



. CHARACTERISTICS OF SERIES 60 LINES 



The principal particulars of the Series 60 parent models are set out in Table 2. 

 Attention must be drawn to a number of details which are important in using the contour 

 charts and resistance results. 



a. Midship section area coefficient (C x) 



The midship section has no deadrise, in accordance with current practice, and a 

 linear relation between block coefficient and midship area coefficient was adopted. This 

 relation and the corresponding values of the bilge radius are shown in Figure 3. 



b. Position of LCB 



Reference to the published data on the selection of a suitable position of the LCB for 

 different fineness coefficients failed to show any unanimity as to the most desirable location, 



TABLE 2 

 Particulars of Parent Forms, Series 60 



Model Number. 



4210W 



4211W 



4212W 



4213W 



4214W-B4 



Lspji... 

 B, ft... 

 H,it.... 

 A, Tons 



L'e/^bp- ■ 



'-xl ^BP ■ ■ 



^k/^bp 



Cs 



Cx 



Cp 



^PF 



^PA 



^PB 



t-/>B 



t-pv 



^pvr 



^PVA 



^W 



^WP 



(^WA 



t-zr 



J^a£, deg 



LWL 



LCB % LBP from 



L/B 



B/H 



L/v'/' 



5/v'/" 



W.5.,sqft 



k^=r/Vbh .... 



400.0 

 53.33 

 21.33 

 7,807 

 0.5 

 



0.5 

 0.60 

 0.977 

 0.614 

 0.581 

 0.646 

 0.581 

 0.646 

 0.850 

 0.910 

 0.802 

 0.706 

 0.624 

 0.788 

 0.543 

 7.0 



406.7 

 1.5A 

 7.50 

 2.50 

 6.165 

 6.481 

 27,280 

 0.229 



400.0 

 55.17 

 22.09 

 9,051 

 0.472 

 0.035 

 0.493 

 0.650 

 0.982 

 0.661 

 0.651 

 0.672 

 0.630 

 0.667 

 0.871 

 0.927 

 0.823 

 0.746 

 0.690 

 0.802 

 0.597 

 9.1 

 406.7 

 D.5A 

 7.25 

 2.50 

 5.869 

 6.332 

 29,410 

 0.205 



400.0 



57.14 



22.86 



10,456 



0.410 



0.119 



0.471 



0.700 



0.986 



0.710 



0.721 



0.698 



0.660 



0.680 



0.891 



0.944 



0.842 



0.785 



0.753 



0.818 



0.653 



14.5 



406.7 



0.5F 



7.00 



2.50 



5.593 



6.200 



31.705 



0.181 



400.0 



59.26 



23.70 



12,048 



0.350 



0.210 



0.440 



0.750 



0.990 



0.758 



0.792 



0.724 



0.704 



0.686 



0.907 



0.961 



0.856 



0.827 



0.817 



0.838 



0.711 



22.5 



406.7 



1.5F 



6.75 



2.50 



5.335 



6.091 



34,232 



0.153 



400.0 

 61.54 

 24.59 

 13,859 

 0.290 

 0.300 

 0.410 

 0.800 

 0.994 

 0.805 

 0.861 

 0.750 

 0.761 

 0.695 

 0.920 

 0.971 

 0.867 

 0.871 

 0.881 

 0.860 

 0.776 

 43.0 

 406.7 

 2.5F 

 6.50 

 2.50 

 5.092 

 6.028 

 37,200 

 0.118 



IV-1 



