Amazon Ad

Thursday, January 06, 2005

My design for the Ger/BB/1905 worked extremely well

I was shocked at how well my German battleship design worked in Springsharp. I actually was able to increase the speed to 24 knots (from 23). I used my traditional displacement and dimensions, as they had always been:
Ger/BB/1905, Enter country Enter ship type laid down 1905

Displacement:
	19,135 t light; 19,986 t standard; 22,058 t normal; 23,715 t full load

Dimensions: Length overall / water x beam x draught
	580.00 ft / 580.00 ft x 90.00 ft x 26.60 ft (normal load)
	176.78 m / 176.78 m x 27.43 m  x 8.11 m

Armament:
      8 - 12.00" / 305 mm guns (4x2 guns), 864.00lbs / 391.90kg shells, 1905 Model
	  Breech loading guns in turrets (on barbettes)
	  on centreline ends, evenly spread, all raised mounts - superfiring
      12 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1905 Model
	  Breech loading guns in casemate mounts 
	  on side ends, evenly spread, all raised mounts - superfiring
	Weight of broadside 7,296 lbs / 3,309 kg
	Shells per gun, main battery: 100

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	10.0" / 254 mm	385.00 ft / 117.35 m	8.00 ft / 2.44 m
	Ends:	Unarmoured
	Upper:	7.00" / 178 mm	385.00 ft / 117.35 m	0.00 ft / 0.00 m
	  Main Belt covers 102 % of normal length

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	11.0" / 279 mm	7.00" / 178 mm		11.0" / 279 mm
	2nd:	2.00" / 51 mm	      -			      -

   - Armour deck: 3.00" / 76 mm, Conning tower: 11.00" / 279 mm

Machinery:
	Oil fired boilers, steam turbines, 
	Direct drive, 4 shafts, 47,841 shp / 35,690 Kw = 24.00 kts
	Range 4,500nm at 15.00 kts
	Bunker at max displacement = 3,728 tons

Complement:
	904 - 1,176

Cost:
	£1.943 million / $7.773 million

Distribution of weights at normal displacement:
	Armament: 912 tons, 4.1 %
	Armour: 5,630 tons, 25.5 %
	   - Belts: 1,336 tons, 6.1 %
	   - Torpedo bulkhead: 0 tons, 0.0 %
	   - Armament: 2,074 tons, 9.4 %
	   - Armour Deck: 2,033 tons, 9.2 %
	   - Conning Tower: 186 tons, 0.8 %
	Machinery: 3,624 tons, 16.4 %
	Hull, fittings & equipment: 8,969 tons, 40.7 %
	Fuel, ammunition & stores: 2,923 tons, 13.3 %
	Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  28,036 lbs / 12,717 Kg = 32.4 x 12.0 " / 305 mm shells or 2.9 torpedoes
	Stability (Unstable if below 1.00): 1.05
	Metacentric height 4.7 ft / 1.4 m
	Roll period: 17.5 seconds
	Steadiness	- As gun platform (Average = 50 %): 73 %
			- Recoil effect (Restricted arc if above 1.00): 0.75
	Seaboat quality  (Average = 1.00): 1.45

Hull form characteristics:
	Hull has rise forward of midbreak
	Block coefficient: 0.556
	Length to Beam Ratio: 6.44 : 1
	'Natural speed' for length: 24.08 kts
	Power going to wave formation at top speed: 49 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): -2.00 degrees
	Stern overhang: -2.00 ft / -0.61 m
	Freeboard (% = measuring location as a percentage of overall length):
	   - Stem:		25.00 ft / 7.62 m
	   - Forecastle (20 %):	24.00 ft / 7.32 m
	   - Mid (80 %):		24.00 ft / 7.32 m (15.00 ft / 4.57 m aft of break)
	   - Quarterdeck (15 %):	15.00 ft / 4.57 m
	   - Stern:		15.00 ft / 4.57 m
	   - Average freeboard:	22.28 ft / 6.79 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 84.7 %
		- Above water (accommodation/working, high = better): 179.9 %
	Waterplane Area: 36,635 Square feet or 3,404 Square metres
	Displacement factor (Displacement / loading): 109 %
	Structure weight / hull surface area: 171 lbs/sq ft or 833 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.94
		- Longitudinal: 1.81
		- Overall: 1.00
	Hull space for machinery, storage, compartmentation is adequate
	Room for accommodation and workspaces is excellent
	Ship has slow, easy roll, a good, steady gun platform
	Good seaboat, rides out heavy weather easily

No comments:

Amazon Context Links