I found that if I severely cut back the armor protection, I could get a reasonable result for Colonel Cuniberti's "Ideal Battleship for the British Navy" from 1903. Instead of a 12in armor basis, I found that a 9in basis was more workable. I also had to give pretty powerful machinery to achieve the desired speed, and to use a lighter-weight machinery to do it:
Designed draft=27.8055 ft Hull Weight=6511.95 tons Tertiary Battery Weight=3.8916 Armament Weight= 3013.89 Total Armor Weight=3261.92 Machinery Weight=3375.0 General Equipment Weight=510.0 Normal Fuel Weight=510.0 Maximum Fuel added Weight=1275.0 Reserve Feedwater Weight=393.66 Legend Displacement=17630.8 Legend Draft=28.8372 Submergence of 768.321 of actual displacement per foot At Displacement=17630.8 Length=521.5 ft Beam=82.0 ft Draft=28.8372 ft Cp=0.556 Cm=0.9 Cb=0.5004 DLR=124.311 Wetted Surface=48515.7 B/H=2.84355 At speed of 10knots power is 1983.53 SHP At speed of 11knots power is 2596.19 SHP At speed of 12knots power is 3404.1 SHP At speed of 13knots power is 4408.89 SHP At speed of 14knots power is 5567.12 SHP At speed of 15knots power is 6881.56 SHP At speed of 16knots power is 8365.81 SHP At speed of 17knots power is 10018.2 SHP At speed of 18knots power is 12518.6 SHP At speed of 19knots power is 15375.7 SHP At speed of 20knots power is 18522.1 SHP At speed of 21knots power is 21955.0 SHP At speed of 22knots power is 25689.7 SHP At speed of 23knots power is 31378.4 SHP At speed of 24knots power is 46152.3 SHP At speed of 25knots power is 61598.7 SHP actual speed for 54000.0 SHP is 24.5081 Deep Load Displacement=19299.4 Deep Load Draft=30.9476 Submergence of 778.621 of actual displacement per foot At Displacement=19299.4 Length=521.5 Beam=82.0 Draft=30.9453 Cp=0.56434 Cm=0.9045 Cb=0.510445 DLR=136.076 Wetted Surface=50759.7 B/H=2.64984 At speed of 10knots power is 2093.98 SHP At speed of 11knots power is 2740.18 SHP At speed of 12knots power is 3593.29 SHP At speed of 13knots power is 4654.88 SHP At speed of 14knots power is 5878.19 SHP At speed of 15knots power is 7266.12 SHP At speed of 16knots power is 8832.88 SHP At speed of 17knots power is 10576.8 SHP At speed of 18knots power is 13371.3 SHP At speed of 19knots power is 16583.1 SHP At speed of 20knots power is 20119.5 SHP At speed of 21knots power is 23977.4 SHP At speed of 22knots power is 28173.0 SHP At speed of 23knots power is 34664.5 SHP At speed of 24knots power is 51432.0 SHP At speed of 25knots power is 68328.5 SHP actual speed for 54000.0 SHP is 24.152 At Legend Displacement: Waterline Coeff=0.671089 Block Coefficient=0.5004 CG of hull=21.7742 Hull Wt=6511.95 CG of machinery=11.3933 Mach Wt=3375.0 Armor Center of gravity=43.6179 CG of armor=43.6179 Armor Wt=5324.78 CG of normal fuel=12.1954 Normal Fuel Wt=765.0 CG of max fuel= n/a Additional Max Fuel Wt=0.0 CG of upper works=69.12 Upper Works Wt=71.3698 CG of general equipment=28.08 General Equip Wt=510.0 Main Armament CG=50.0 Main armament wt=3013.89 Secondary Batt CG=0.0 Secondary Batt wt: 0.0 Tertiary Batt CG=0.0 Tertiary Batt wt: 3.8916 CG above keel = 30.23 Stability Coeff (nu)=0.559814 Height of CG as a fraction of the depth=0.559814 Freeboard=25.1628 ft Draft=28.8372 ft Beam=82.0 ft Metacentric height at legend displacement (GM)=5.20457 ft At Deep Load Displacement: Waterline Coeff=0.671089 Block Coefficient=0.5004 CG of hull=21.7742 Hull Wt=6511.95 CG of machinery=11.3933 Mach Wt=3375.0 Armor Center of gravity=44.4982 CG of armor=44.4982 Armor Wt=5324.78 CG of normal fuel=12.6479 Normal Fuel Wt=765.0 CG of max fuel=12.6479 Additional Max Fuel Wt=1275.0 CG of upper works=69.12 Upper Works Wt=71.3698 CG of general equipment=28.08 General Equip Wt=510.0 Main Armament CG=50.0 Main armament wt=3013.89 Secondary Batt CG=0.0 Secondary Batt wt: 0.0 Tertiary Batt CG=0.0 Tertiary Batt wt: 3.8916 CG above keel = 28.6229 Stability Coeff (nu)=0.530053 Height of CG as a fraction of the depth=0.530053 Freeboard=23.0524 Draft=30.9476 Beam=82.0 Metacentric height at deep load displacement (GM)=6.77938 ft
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