Homemade BB

Started by Sachmle, October 13, 2007, 12:41:25 PM

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Sachmle

#30
October 16, 2007, 02:27:46 PM
Tried to incorporate all your great feedback, made a few changes on my own.  Waddaya think?

Veinticinco de Mayo, USA Battleship laid down 1905

Displacement:
   12,480 t light; 13,185 t standard; 14,700 t normal; 15,912 t full load

Dimensions: Length overall / water x beam x draught
   434.00 ft / 434.00 ft x 72.00 ft x 26.50 ft (normal load)
   132.28 m / 132.28 m x 21.95 m  x 8.08 m

Armament:
      6 - 12.00" / 305 mm guns (3x2 guns), 800.00lbs / 362.87kg shells, 1905 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, evenly spread
     Aft Main mounts separated by engine room
      10 - 6.00" / 152 mm guns in single mounts, 100.00lbs / 45.36kg shells, 1905 Model
     Quick firing guns in deck mounts
     on side, evenly spread
      12 - 3.00" / 76.2 mm guns in single mounts, 12.00lbs / 5.44kg shells, 1905 Model
     Quick firing guns in deck mounts
     on side, all amidships, 6 raised mounts - superfiring
   Weight of broadside 5,944 lbs / 2,696 kg
   Shells per gun, main battery: 120

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12.0" / 305 mm   282.00 ft / 85.95 m   14.00 ft / 4.27 m
   Ends:   8.00" / 203 mm   152.00 ft / 46.33 m   10.00 ft / 3.05 m
   Upper:   8.00" / 203 mm   282.00 ft / 85.95 m   10.00 ft / 3.05 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   12.0" / 305 mm   8.00" / 203 mm      10.0" / 254 mm
   2nd:   1.00" / 25 mm         -               -
   3rd:   1.00" / 25 mm         -               -

   - Armour deck: 2.00" / 51 mm, Conning tower: 12.00" / 305 mm

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 4 shafts, 16,913 shp / 12,617 Kw = 19.00 kts
   Range 7,750nm at 10.00 kts
   Bunker at max displacement = 2,728 tons (100% coal)

Complement:
   666 - 867

Cost:
   £1.309 million / $5.235 million

Distribution of weights at normal displacement:
   Armament: 803 tons, 5.5 %
   Armour: 5,715 tons, 38.9 %
      - Belts: 3,537 tons, 24.1 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 1,160 tons, 7.9 %
      - Armour Deck: 863 tons, 5.9 %
      - Conning Tower: 155 tons, 1.1 %
   Machinery: 1,409 tons, 9.6 %
   Hull, fittings & equipment: 4,503 tons, 30.6 %
   Fuel, ammunition & stores: 2,220 tons, 15.1 %
   Miscellaneous weights: 50 tons, 0.3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     17,966 lbs / 8,149 Kg = 20.8 x 12.0 " / 305 mm shells or 2.5 torpedoes
   Stability (Unstable if below 1.00): 1.13
   Metacentric height 3.8 ft / 1.2 m
   Roll period: 15.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 61 %
         - Recoil effect (Restricted arc if above 1.00): 0.57
   Seaboat quality  (Average = 1.00): 1.48

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.621
   Length to Beam Ratio: 6.03 : 1
   'Natural speed' for length: 20.83 kts
   Power going to wave formation at top speed: 48 %
   Trim (Max stability = 0, Max steadiness = 100): 41
   Bow angle (Positive = bow angles forward): -14.00 degrees
   Stern overhang: -10.00 ft / -3.05 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      23.00 ft / 7.01 m
      - Forecastle (25 %):   23.00 ft / 7.01 m
      - Mid (30 %):      23.00 ft / 7.01 m (14.50 ft / 4.42 m aft of break)
      - Quarterdeck (15 %):   14.50 ft / 4.42 m
      - Stern:      14.50 ft / 4.42 m
      - Average freeboard:   17.05 ft / 5.20 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 73.3 %
      - Above water (accommodation/working, high = better): 101.4 %
   Waterplane Area: 23,313 Square feet or 2,166 Square metres
   Displacement factor (Displacement / loading): 98 %
   Structure weight / hull surface area: 131 lbs/sq ft or 639 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.92
      - Longitudinal: 2.05
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is adequate
   Good seaboat, rides out heavy weather easily
"All treaties between great states cease to be binding when they come in conflict with the struggle for existence."
Otto von Bismarck

"Give me a woman who loves beer and I will conquer the world."
Kaiser Wilhelm

"If stupidity were painfull I would be deaf from all the screaming." Sam A. Grim

Borys

#31
October 16, 2007, 02:36:23 PM
Ahoj!
Build!
Borys
NEDS - Not Enough Deck Space for all those guns and torpedos;
Bambi must DIE!

P3D

#32
October 16, 2007, 02:44:59 PM
I'd decrease stern freeboard to 13', and have 21' freeboard fore the mid-break. Then adjust the mid-point break somewhere between 40 and 75%, to get 1 composite strength.
Main belt is too high. And a sketch usually help you determine what upper belt height you want to enters, as it varies.
The first purpose of a warship is to remain afloat. Anon.
Below 40 degrees, there is no law. Below 50 degrees, there is no God. sailor's maxim on weather in the Southern seas

Borys

#33
October 16, 2007, 03:02:24 PM
Ahoj!
Oh - I looked at the average freeboard, not amidships. Yup - 7 (14/2) +7,5 is enough.
And maybe do put the 6 inchers into casemattes - you can do that on weatherdeck level.
Borys
NEDS - Not Enough Deck Space for all those guns and torpedos;
Bambi must DIE!

Sachmle

#34
October 16, 2007, 03:08:30 PM
Veinticinco de Mayo, USA Battleship laid down 1905

Displacement:
   12,395 t light; 13,177 t standard; 14,692 t normal; 15,904 t full load

Dimensions: Length overall / water x beam x draught
   434.00 ft / 434.00 ft x 72.00 ft x 26.50 ft (normal load)
   132.28 m / 132.28 m x 21.95 m  x 8.08 m

Armament:
      6 - 12.00" / 305 mm guns (3x2 guns), 800.00lbs / 362.87kg shells, 1900 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, evenly spread
     Aft Main mounts separated by engine room
      8 - 6.00" / 152 mm guns in single mounts, 100.00lbs / 45.36kg shells, 1905 Model
     Breech loading guns in casemate mounts
     on side, evenly spread
     8 guns in hull casemates - Limited use in all but light seas
      8 - 6.00" / 152 mm guns in single mounts, 100.00lbs / 45.36kg shells, 1905 Model
     Quick firing guns in deck mounts
     on side, evenly spread
      6 - 3.00" / 76.2 mm guns in single mounts, 12.00lbs / 5.44kg shells, 1905 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 6,472 lbs / 2,936 kg
   Shells per gun, main battery: 130

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12.0" / 305 mm   282.00 ft / 85.95 m   12.00 ft / 3.66 m
   Ends:   8.00" / 203 mm   152.00 ft / 46.33 m   10.00 ft / 3.05 m
   Upper:   8.00" / 203 mm   282.00 ft / 85.95 m   10.00 ft / 3.05 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   12.0" / 305 mm   8.00" / 203 mm      10.0" / 254 mm
   2nd:   1.00" / 25 mm         -               -
   3rd:   1.00" / 25 mm         -               -

   - Armour deck: 2.00" / 51 mm, Conning tower: 12.00" / 305 mm

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 4 shafts, 18,702 shp / 13,952 Kw = 19.50 kts
   Range 7,750nm at 10.00 kts
   Bunker at max displacement = 2,727 tons (100% coal)

Complement:
   666 - 867

Cost:
   £1.386 million / $5.545 million

Distribution of weights at normal displacement:
   Armament: 874 tons, 5.9 %
   Armour: 5,396 tons, 36.7 %
      - Belts: 3,238 tons, 22.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 1,140 tons, 7.8 %
      - Armour Deck: 862 tons, 5.9 %
      - Conning Tower: 155 tons, 1.1 %
   Machinery: 1,558 tons, 10.6 %
   Hull, fittings & equipment: 4,517 tons, 30.7 %
   Fuel, ammunition & stores: 2,297 tons, 15.6 %
   Miscellaneous weights: 50 tons, 0.3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     16,082 lbs / 7,295 Kg = 18.6 x 12.0 " / 305 mm shells or 2.2 torpedoes
   Stability (Unstable if below 1.00): 1.12
   Metacentric height 3.8 ft / 1.2 m
   Roll period: 15.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.57
   Seaboat quality  (Average = 1.00): 1.33

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.621
   Length to Beam Ratio: 6.03 : 1
   'Natural speed' for length: 20.83 kts
   Power going to wave formation at top speed: 49 %
   Trim (Max stability = 0, Max steadiness = 100): 45
   Bow angle (Positive = bow angles forward): -14.00 degrees
   Stern overhang: -10.00 ft / -3.05 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      21.00 ft / 6.40 m
      - Forecastle (30 %):   21.00 ft / 6.40 m
      - Mid (40 %):      21.00 ft / 6.40 m (13.00 ft / 3.96 m aft of break)
      - Quarterdeck (20 %):   13.00 ft / 3.96 m
      - Stern:      13.00 ft / 3.96 m
      - Average freeboard:   16.20 ft / 4.94 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 80.4 %
      - Above water (accommodation/working, high = better): 97.3 %
   Waterplane Area: 23,306 Square feet or 2,165 Square metres
   Displacement factor (Displacement / loading): 94 %
   Structure weight / hull surface area: 133 lbs/sq ft or 647 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 1.95
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is adequate
   Good seaboat, rides out heavy weather easily
"All treaties between great states cease to be binding when they come in conflict with the struggle for existence."
Otto von Bismarck

"Give me a woman who loves beer and I will conquer the world."
Kaiser Wilhelm

"If stupidity were painfull I would be deaf from all the screaming." Sam A. Grim

Borys

#35
October 16, 2007, 03:40:48 PM
Enter ship name, Enter country Enter ship type laid down 1905

Displacement:
   12 393 t light; 13 069 t standard; 14 527 t normal; 15 693 t full load

Dimensions: Length overall / water x beam x draught
   434,00 ft / 434,00 ft x 72,00 ft x 26,50 ft (normal load)
   132,28 m / 132,28 m x 21,95 m  x 8,08 m

Armament:
      6 - 12,00" / 305 mm guns (3x2 guns), 800,00lbs / 362,87kg shells, 1905 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, evenly spread
     Aft Main mounts separated by engine room
      12 - 6,00" / 152 mm guns in single mounts, 100,00lbs / 45,36kg shells, 1905 Model
     Breech loading guns in casemate mounts
     on side, evenly spread
      6 - 3,00" / 76,2 mm guns in single mounts, 13,00lbs / 5,90kg shells, 1905 Model
     Breech loading guns in deck mounts
     on centreline, evenly spread, all raised mounts
   Weight of broadside 6 078 lbs / 2 757 kg
   Shells per gun, main battery: 110

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12,0" / 305 mm   282,00 ft / 85,95 m   14,00 ft / 4,27 m
   Ends:   4,00" / 102 mm   152,00 ft / 46,33 m   10,00 ft / 3,05 m
   Upper:   8,00" / 203 mm   282,00 ft / 85,95 m   8,00 ft / 2,44 m
     Main Belt covers 100% of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   12,0" / 305 mm   8,00" / 203 mm      10,0" / 254 mm
   2nd:   4,00" / 102 mm         -         1,00" / 25 mm
   3rd:   0,50" / 13 mm         -               -

   - Armour deck: 2,00" / 51 mm, Conning tower: 12,00" / 305 mm

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 4 shafts, 16 750 shp / 12 496 Kw = 19,00 kts
   Range 7 500nm at 10,00 kts
   Bunker at max displacement = 2 624 tons (100% coal)

Complement:
   661 - 860

Cost:
   £1,318 million / $5,272 million

Distribution of weights at normal displacement:
   Armament: 820 tons, 5,6%
   Armour: 5 473 tons, 37,7%
      - Belts: 3 111 tons, 21,4%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 1 351 tons, 9,3%
      - Armour Deck: 857 tons, 5,9%
      - Conning Tower: 154 tons, 1,1%
   Machinery: 1 396 tons, 9,6%
   Hull, fittings & equipment: 4 604 tons, 31,7%
   Fuel, ammunition & stores: 2 134 tons, 14,7%
   Miscellaneous weights: 100 tons, 0,7%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     18 050 lbs / 8 187 Kg = 20,9 x 12,0 " / 305 mm shells or 2,5 torpedoes
   Stability (Unstable if below 1.00): 1,10
   Metacentric height 3,6 ft / 1,1 m
   Roll period: 15,9 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,70
   Seaboat quality  (Average = 1.00): 1,60

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0,614
   Length to Beam Ratio: 6,03 : 1
   'Natural speed' for length: 20,83 kts
   Power going to wave formation at top speed: 48 %
   Trim (Max stability = 0, Max steadiness = 100): 44
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      24,00 ft / 7,32 m
      - Forecastle (20%):   21,00 ft / 6,40 m
      - Mid (50%):      18,00 ft / 5,49 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:   17,79 ft / 5,42 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 74,8%
      - Above water (accommodation/working, high = better): 113,9%
   Waterplane Area: 23 155 Square feet or 2 151 Square metres
   Displacement factor (Displacement / loading): 97%
   Structure weight / hull surface area: 133 lbs/sq ft or 651 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,91
      - Longitudinal: 2,24
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

NEDS - Not Enough Deck Space for all those guns and torpedos;
Bambi must DIE!
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