Nassau, laid down 1907 Length, 146.0 m x Beam, 27.0 m x Depth, 8.1 m 18639 tonnes normal displacement (16338 tonnes standard) Main battery: 12 x 28.3-cm (6 x 2) Secondary battery: 12 x 14.9-cm QF battery: 16 x 8.8-cm Weight of broadside: 4474 kg 6 TT, 45.0 cm (submerged) Main belt, 29.0 cm; bow and stern, 10.0 cm Upper belt, 17.0 cm Torpedo bulkhead, 3.0 cm Armor deck, average 6.3 cm Conning tower, 40.0 cm Battery armor: Main, 28.0 cm / secondary, 16.0 cm Maximum speed for 14217 indicated kw = 19.00 knots Approximate cruising radius, 8300 nm / 12 knots Typical complement: 798-1037 Estimated cost, $7.440 million (£1.860 million) Remarks: DESIGN FAILURE: Hull cannot carry loads! Relative extent of belt armor, 120 percent of 'typical' coverage. Magazines and engineering spaces are cramped, with poor watertight subdivision. Cramped ship; poor crew accommodation, limited working space. Main deck secondary guns subject to being washed down in a seaway. Main deck QF guns subject to being washed down in a seaway. Distribution of weights: Percent normal displacement: Armament ......................... 1230 tonnes = 7 pct Armor, total ..................... 7487 tonnes = 40 pct Belt 3341 tonnes = 18 pct Torpedo bulkhead 361 tonnes = 2 pct Deck 1349 tonnes = 7 pct C.T. 239 tonnes = 1 pct Armament 2197 tonnes = 12 pct Machinery ........................ 2117 tonnes = 11 pct Hull and fittings; equipment ..... 4260 tonnes = 23 pct Fuel, ammunition, stores ......... 3495 tonnes = 19 pct Miscellaneous weights ............ 50 tonnes = 0 pct ----- 18639 tonnes = 100 pct Estimated metacentric height, 1.7 m Displacement summary: Light ship: 15145 tonnes Standard displacement: 16338 tonnes Normal service: 18639 tonnes Full load: 20406 tonnes Loading submergence 2756 tonnes/metre +++++++++++++++++++++++++ Estimated overall survivability and seakeeping ability: Relative margin of stability: 1.17 Shellfire needed to sink: 3428 kg = 10.9 x 28.3-cm shells (Approximates weight of penetrating shell hits needed to sink ship, not counting critical hits) Torpedoes needed to sink: 1.8 (Approximates number of 'typical' torpedo hits needed to sink ship) Relative steadiness as gun platform, 50 percent (50 percent is 'average') Relative rocking effect from firing to beam, 0.32 Relative quality as a seaboat: 1.00 +++++++++++++++++++++++++ Hull form characteristics: Block coefficient: 0.58 Sharpness coefficient: 0.44 Hull speed coefficient 'M' = 5.52 'Natural speed' for length = 21.9 knots Power going to wave formation at top speed: 45 percent Estimated hull characteristics and strength: Relative underwater volume absorbed by magazines and engineering spaces: 119 percent Relative accommodation and working space: 78 percent Displacement factor: 85 percent (Displacement relative to loading factors) Relative cross-sectional hull strength: 0.70 (Structure weight per square metre of hull surface: 542 kg) Relative longitudinal hull strength: 0.82 (for 3.40 m average freeboard; freeboard adjustment -1.83 m) Relative composite hull strength: 0.71 +++++++++++++++++++++++++ [Machine-readable parameters: Spring Style v. 1.2.1] 478.88 x 88.56 x 26.57; 11.15 -- Dimensions 0.58 -- Block coefficient 1907 -- Year laid down 19.00 / 8300 / 12.00; Reciprocating -- Speed / radius / cruise 50 tons -- Miscellaneous weights ++++++++++ 12 x 11.14; 6; 0 -- Main battery; turrets; superfiring : 12 x 5.87; 0 -- Secondary battery; turrets Main deck battery : 16 x 3.46 -- Tertiary (QF/AA) battery Main deck battery : 0 -- No fourth (light) battery 6 / 6 / 17.72 -- TT / submerged / size ++++++++++ 11.42 / 3.94 / 6.69 / 1.18; 120 -- Belt armor; relative extent 2.48 / 15.75 -- Deck / CT 11.02 / 6.30 / 0.00 / 0.00 -- Battery armor (Note: For portability, values are stored in Anglo-American units) +++++++++++++++++++++++++++++++++++++++++++++++++++++++ nassau Nassau 146 27 8.1 .579 y 1907 n 12 28.3 6 0 12 14.9 16 8.8 0 6 6 45 29 10 17 119.5 3 6.3 40 28 16 n 0 y 50 z n 19 y 12 z y 8300 3.4 z 50