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1940 Swedish coastal bb with TorpBoat for Scootia23 RFP

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  1. Dalsland, Sweden Super Type A Cruiser laid down 1940
  2.  
  3. Displacement:
  4. 17,272 t light; 18,257 t standard; 18,997 t normal; 19,589 t full load
  5.  
  6. Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
  7. (695.57 ft / 688.98 ft) x 73.82 ft x (20.77 / 21.29 ft)
  8. (212.01 m / 210.00 m) x 22.50 m x (6.33 / 6.49 m)
  9.  
  10. Armament:
  11. 7 - 12.60" / 320 mm 44.0 cal guns - 985.93lbs / 447.21kg shells, 100 per gun
  12. Breech loading guns in turret on barbette mounts, 1936 Model
  13. 2 x 2-gun mounts on centreline, aft evenly spread
  14. 1 raised mount aft
  15. 1 x 3-gun mount on centreline, forward deck centre
  16. 20 - 4.72" / 120 mm 46.0 cal guns - 54.37lbs / 24.66kg shells, 270 per gun
  17. Breech loading guns in deck and hoist mounts, 1924 Model
  18. 10 x Twin mounts on sides, evenly spread
  19. 24 - 1.57" / 40.0 mm 56.2 cal guns - 2.12lbs / 0.96kg shells, 2,000 per gun
  20. Anti-air guns in deck mounts, 1936 Model
  21. 12 x Twin mounts on sides, evenly spread
  22. 12 raised mounts
  23. 6 - 0.79" / 20.0 mm 66.0 cal guns - 0.26lbs / 0.12kg shells, 2,000 per gun
  24. Anti-air guns in deck mounts, 1940 Model
  25. 6 x Single mounts on sides, evenly spread
  26. 6 raised mounts
  27. 6 - 0.26" / 6.5 mm 105.0 cal guns - 0.01lbs / 0.01kg shells, 4,000 per gun
  28. Machine guns in deck mounts, 1940 Model
  29. 6 x Single mounts on sides, evenly spread
  30. 6 raised mounts
  31. Weight of broadside 8,041 lbs / 3,647 kg
  32. Main Torpedoes
  33. 16 - 21.0" / 533 mm, 24.61 ft / 7.50 m torpedoes - 1.653 t each, 26.450 t total
  34. In 4 sets of deck mounted side rotating tubes
  35. 2nd Torpedoes
  36. 16 - 21.0" / 533 mm, 24.61 ft / 7.50 m torpedoes - 1.653 t each, 26.450 t total
  37. In 4 sets of deck mounted reloads
  38. Main DC/AS Mortars
  39. 4 - 141.10 lbs / 64.00 kg Depth Charges + 30 reloads - 2.142 t total
  40. in Depth charge throwers
  41. 2nd DC/AS Mortars
  42. 2 - 141.10 lbs / 64.00 kg Depth Charges + 60 reloads - 3.905 t total
  43. in Stern depth charge racks
  44.  
  45. Armour:
  46. - Belts: Width (max) Length (avg) Height (avg)
  47. Main: 7.99" / 203 mm 447.83 ft / 136.50 m 9.84 ft / 3.00 m
  48. Ends: Unarmoured
  49. Main Belt covers 100 % of normal length
  50. Main Belt inclined -12.50 degrees (positive = in)
  51.  
  52. - Torpedo Bulkhead - Additional damage containing bulkheads:
  53. 2.99" / 76 mm 447.83 ft / 136.50 m 9.84 ft / 3.00 m
  54. Beam between torpedo bulkheads 55.77 ft / 17.00 m
  55.  
  56. - Hull void:
  57. 1.02" / 26 mm 447.83 ft / 136.50 m 9.84 ft / 3.00 m
  58.  
  59. - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
  60. Main: 9.06" / 230 mm 6.30" / 160 mm 7.99" / 203 mm
  61. 2nd: 2.95" / 75 mm 2.95" / 75 mm 2.95" / 75 mm
  62.  
  63. - Armoured deck - single deck:
  64. For and Aft decks: 2.99" / 76 mm
  65. Forecastle: 1.57" / 40 mm Quarter deck: 1.57" / 40 mm
  66.  
  67. - Conning towers: Forward 9.06" / 230 mm, Aft 0.00" / 0 mm
  68.  
  69. Machinery:
  70. Oil fired boilers, steam turbines,
  71. Geared drive, 4 shafts, 58,238 shp / 43,445 Kw = 27.00 kts
  72. Range 4,200nm at 14.00 kts
  73. Bunker at max displacement = 1,333 tons
  74.  
  75. Complement:
  76. 808 - 1,051
  77.  
  78. Cost:
  79. £9.377 million / $37.508 million
  80.  
  81. Distribution of weights at normal displacement:
  82. Armament: 1,803 tons, 9.5 %
  83. - Guns: 1,709 tons, 9.0 %
  84. - Weapons: 94 tons, 0.5 %
  85. Armour: 5,656 tons, 29.8 %
  86. - Belts: 1,475 tons, 7.8 %
  87. - Torpedo bulkhead: 488 tons, 2.6 %
  88. - Void: 167 tons, 0.9 %
  89. - Armament: 1,361 tons, 7.2 %
  90. - Armour Deck: 2,026 tons, 10.7 %
  91. - Conning Tower: 139 tons, 0.7 %
  92. Machinery: 1,557 tons, 8.2 %
  93. Hull, fittings & equipment: 7,250 tons, 38.2 %
  94. Fuel, ammunition & stores: 1,725 tons, 9.1 %
  95. Miscellaneous weights: 1,027 tons, 5.4 %
  96. - Hull below water: 599 tons
  97. - Hull above water: 429 tons
  98.  
  99. Overall survivability and seakeeping ability:
  100. Survivability (Non-critical penetrating hits needed to sink ship):
  101. 30,048 lbs / 13,629 Kg = 30.1 x 12.6 " / 320 mm shells or 3.7 torpedoes
  102. Stability (Unstable if below 1.00): 1.08
  103. Metacentric height 3.7 ft / 1.1 m
  104. Roll period: 16.2 seconds
  105. Steadiness - As gun platform (Average = 50 %): 62 %
  106. - Recoil effect (Restricted arc if above 1.00): 0.97
  107. Seaboat quality (Average = 1.00): 1.25
  108.  
  109. Hull form characteristics:
  110. Hull has a flush deck,
  111. a normal bow and large transom stern
  112. Block coefficient (normal/deep): 0.630 / 0.633
  113. Length to Beam Ratio: 9.33 : 1
  114. 'Natural speed' for length: 29.72 kts
  115. Power going to wave formation at top speed: 47 %
  116. Trim (Max stability = 0, Max steadiness = 100): 50
  117. Bow angle (Positive = bow angles forward): 15.00 degrees
  118. Stern overhang: -3.28 ft / -1.00 m
  119. Freeboard (% = length of deck as a percentage of waterline length):
  120. Fore end, Aft end
  121. - Forecastle: 20.00 %, 24.61 ft / 7.50 m, 21.33 ft / 6.50 m
  122. - Forward deck: 20.00 %, 21.33 ft / 6.50 m, 18.04 ft / 5.50 m
  123. - Aft deck: 45.00 %, 18.04 ft / 5.50 m, 18.04 ft / 5.50 m
  124. - Quarter deck: 15.00 %, 18.04 ft / 5.50 m, 18.04 ft / 5.50 m
  125. - Average freeboard: 19.29 ft / 5.88 m
  126. Ship tends to be wet forward
  127.  
  128. Ship space, strength and comments:
  129. Space - Hull below water (magazines/engines, low = better): 91.3 %
  130. - Above water (accommodation/working, high = better): 165.8 %
  131. Waterplane Area: 39,871 Square feet or 3,704 Square metres
  132. Displacement factor (Displacement / loading): 113 %
  133. Structure weight / hull surface area: 147 lbs/sq ft or 719 Kg/sq metre
  134. Hull strength (Relative):
  135. - Cross-sectional: 0.99
  136. - Longitudinal: 1.03
  137. - Overall: 1.00
  138. Adequate machinery, storage, compartmentation space
  139. Excellent accommodation and workspace room
  140. Good seaboat, rides out heavy weather easily
  141.  
  142. ------------------------------------------------------------------------------
  143. ------------------------------------------------------------------------------
  144. EXTRA INFORMATION:
  145. ------------------------------------------------------------------------------
  146. Super Cruiser:
  147. ------------------------------------------------------------------------------
  148. Name: Dalsland; a traditional provice in southern Sweden
  149.  
  150. WEAPONS:
  151.  
  152. 7x BL 320 mm/44 (12.6") Model 1936
  153. 3 mounts total
  154. 2 x III, 1 x II; centerline ends formation A-X-Y, A = 3-gun, X = 2-gun superfiring, Y = 2-gun
  155.  
  156. 20x DP 12 cm/50 (4.7") Models 1924
  157. 10 mounts total
  158. 5 twin mounts per side, on deck
  159.  
  160. 24x AAG Bofors 40 mm/60 Model 1936
  161. 12 mounts total
  162. 6 twin mounts per side, above deck
  163.  
  164. 6x1 AAG Bofors 20 mm automatkanon
  165. 6 mounts total
  166. 6 single mounts per side, above deck
  167.  
  168. 6x1 MG Kg m/40 LMG
  169. 6 mounts total
  170. 6 single mounts per side, above deck
  171.  
  172.  
  173.  
  174. 12x torpedoes 533mm M/1927 JA
  175. 4 triple tubes, 2 per side
  176.  
  177. 4x depth charge throwers for depth charges, based on Italian B TG Monc. 50/1936 due to myself not finding any native depth charge data
  178. 2 depth charge throwers per side with 30 reloads per depth charge throwers
  179.  
  180. 2x stern depth charge racks, based on Italian B TG Monc. 50/1936 due to myself not finding any native depth charge data
  181. 60 reloads per rack
  182.  
  183.  
  184. ------------------------------------------------------------------------------
  185. Torpedo Boat:
  186. ------------------------------------------------------------------------------
  187. Name: Aamaal (Åmål); Dalsland's chartered city in 1643. The Super Type A Cruiser is called Dalsland.
  188. Stats are the following - it is fully simulated in Springsharp:
  189.  
  190. size: 80 m lwl, 7.5 beam, 2.55 draught
  191. 857 t normal, block coeff 0.555 normal
  192.  
  193. 2x1 DP 12 cm/50 (4.7") Models 1924, 1924B and 1924C
  194. 3x2 AAG Bofors 40 mm/60 Model 1936
  195. 4x1 MG Kg m/40 LMG
  196.  
  197. 2x3 torpedo tubes center mounted with 533mm M/1927 JA
  198.  
  199. 2x depth charge throwers for depth charges, based on Italian B TG Monc. 50/1936 due to myself not finding any native depth charge data
  200. 1x depth charge throwers per side with 30 reloads per depth charge throwers
  201.  
  202. 2x stern depth charge racks, based on Italian B TG Monc. 50/1936 due to myself not finding any native depth charge data
  203. 60 reloads per rack
  204.  
  205. 1 mine rail with mines Lindholmen-Motala M/1918
  206. 20 reloads
  207.  
  208. ------------------------------------------------------------------------------
  209.  
  210. at 19,000 shp she can make 29.77915 knots
  211. using IJN Matsu machinery, 19,000 shp weighs 325 t
  212. 23 knots at 5,774 hp gives 309 t as the highest engine weight
  213. with 19,000 shp input her bunker max is 160 t and her bunker normal is 89 t, with 3500 nmi range at 14 kts
  214.  
  215. the report gives her breakdown as:
  216. Armament: 92 tons, 10.8 %
  217. - Guns: 39 tons, 4.6 %
  218. - Weapons: 53 tons, 6.2 %
  219. Armour: 154 tons, 17.9 %
  220. - Belts: 22 tons, 2.6 %
  221. - Armament: 22 tons, 2.5 %
  222. - Armour Deck: 108 tons, 12.6 %
  223. - Conning Tower: 2 tons, 0.2 %
  224. Machinery: 177 tons, 20.7 %
  225. Hull, fittings & equipment: 304 tons, 35.4 %
  226. Fuel, ammunition & stores: 130 tons, 15.2 %
  227. Miscellaneous weights: 0 tons, 0.0 %
  228.  
  229.  
  230. therefore, her weights when docked in *Dalsland* will be:
  231. (from her normal displacement of 857):
  232.  
  233. hull: below water: 428.5 t + 170 t extra bunker & stores = 598.5
  234. hull: above water: 428.5 t
  235. ------------------------------------------------------------------------------
  236. (End of report)
  237. ------------------------------------------------------------------------------
  238. ------------------------------------------------------------------------------
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