Possibel "Kassar" folllowup

Started by ledeper, May 17, 2010, 09:45:23 AM

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ledeper

Tirpitz, Esc Bb laid down 1921

Displacement:
   40.523 t light; 42.791 t standard; 45.434 t normal; 47.548 t full load

Dimensions: Length overall / water x beam x draught
   720,50 ft / 716,86 ft x 108,27 ft x 32,32 ft (normal load)
   219,61 m / 218,50 m x 33,00 m  x 9,85 m

Armament:
      8 - 17,91" / 455 mm guns (4x2 guns), 2.874,11lbs / 1.303,67kg shells, 1921 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, evenly spread, 2 raised mounts
     Aft Main mounts separated by engine room
      12 - 5,91" / 150 mm guns (6x2 guns), 102,98lbs / 46,71kg shells, 1921 Model
     Quick firing guns in deck mounts
     on side, all amidships
      10 - 1,57" / 40,0 mm guns in single mounts, 1,95lbs / 0,88kg shells, 1921 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread
   Weight of broadside 24.248 lbs / 10.999 kg
   Shells per gun, main battery: 100

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13,8" / 350 mm   428,64 ft / 130,65 m   15,19 ft / 4,63 m
   Ends:   Unarmoured
   Upper:   4,72" / 120 mm   428,64 ft / 130,65 m   8,01 ft / 2,44 m
     Main Belt covers 92 % of normal length

   - Torpedo Bulkhead:
      1,97" / 50 mm   537,66 ft / 163,88 m   29,89 ft / 9,11 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13,8" / 350 mm   9,84" / 250 mm      13,8" / 350 mm
   2nd:   1,97" / 50 mm   0,79" / 20 mm            -
   3rd:   0,39" / 10 mm         -               -

   - Armour deck: 5,91" / 150 mm, Conning tower: 13,78" / 350 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric cruising motors plus geared drives, 4 shafts, 93.945 shp / 70.083 Kw = 25,75 kts
   Range 8.500nm at 14,00 kts
   Bunker at max displacement = 4.757 tons

Complement:
   1.555 - 2.022

Cost:
   £11,244 million / $44,976 million

Distribution of weights at normal displacement:
   Armament: 3.031 tons, 6,7 %
   Armour: 16.553 tons, 36,4 %
      - Belts: 4.716 tons, 10,4 %
      - Torpedo bulkhead: 1.170 tons, 2,6 %
      - Armament: 3.887 tons, 8,6 %
      - Armour Deck: 6.401 tons, 14,1 %
      - Conning Tower: 378 tons, 0,8 %
   Machinery: 3.235 tons, 7,1 %
   Hull, fittings & equipment: 17.054 tons, 37,5 %
   Fuel, ammunition & stores: 4.911 tons, 10,8 %
   Miscellaneous weights: 650 tons, 1,4 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     44.013 lbs / 19.964 Kg = 15,3 x 17,9 " / 455 mm shells or 6,4 torpedoes
   Stability (Unstable if below 1.00): 0,96
   Metacentric height 5,2 ft / 1,6 m
   Roll period: 20,0 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,88
   Seaboat quality  (Average = 1.00): 1,08

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,634
   Length to Beam Ratio: 6,62 : 1
   'Natural speed' for length: 26,77 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 66
   Bow angle (Positive = bow angles forward): 9,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      22,97 ft / 7,00 m
      - Forecastle (10 %):   19,16 ft / 5,84 m
      - Mid (50 %):      19,16 ft / 5,84 m
      - Quarterdeck (15 %):   19,16 ft / 5,84 m
      - Stern:      19,16 ft / 5,84 m
      - Average freeboard:   19,31 ft / 5,89 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 92,0 %
      - Above water (accommodation/working, high = better): 137,5 %
   Waterplane Area: 58.587 Square feet or 5.443 Square metres
   Displacement factor (Displacement / loading): 95 %
   Structure weight / hull surface area: 218 lbs/sq ft or 1.067 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,97
      - Longitudinal: 1,26
      - Overall: 1,00
   Caution: Poor stability - excessive risk of capsizing
   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



Walter

*Looks at Richmond Treaty*
What's the punishment for building a ship that is too heavy?

ledeper

I know it weigh about 200 tns to much ,but that it just some minor tweaking,as I am still allowed to build 1 unit at 40.000 tns + 1% escalation =40400 tns

ledeper

Two options:
Lay it down a year later or slash speed by a 1/4 knts

Walter

One other thing I missed to comment on:
QuoteCaution: Poor stability - excessive risk of capsizing
You obviously need to tweak it a bit more. :)

ledeper

Like this:
Displacement:
   40.261 t light; 42.523 t standard; 45.147 t normal; 47.246 t full load

Dimensions: Length overall / water x beam x draught
   720,50 ft / 716,86 ft x 114,83 ft x 32,48 ft (normal load)
   219,61 m / 218,50 m x 35,00 m  x 9,90 m

Armament:
      8 - 17,91" / 455 mm guns (4x2 guns), 2.874,11lbs / 1.303,67kg shells, 1921 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, evenly spread, 2 raised mounts
     Aft Main mounts separated by engine room
      12 - 5,91" / 150 mm guns (6x2 guns), 102,98lbs / 46,71kg shells, 1921 Model
     Quick firing guns in deck mounts
     on side, all amidships
      10 - 1,57" / 40,0 mm guns in single mounts, 1,95lbs / 0,88kg shells, 1921 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread
   Weight of broadside 24.248 lbs / 10.999 kg
   Shells per gun, main battery: 100

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13,8" / 350 mm   428,64 ft / 130,65 m   13,88 ft / 4,23 m
   Ends:   Unarmoured
   Upper:   4,72" / 120 mm   428,64 ft / 130,65 m   8,01 ft / 2,44 m
     Main Belt covers 92 % of normal length

   - Torpedo Bulkhead:
      1,97" / 50 mm   537,66 ft / 163,88 m   29,89 ft / 9,11 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13,8" / 350 mm   9,84" / 250 mm      13,8" / 350 mm
   2nd:   1,97" / 50 mm   0,79" / 20 mm            -
   3rd:   0,39" / 10 mm         -               -

   - Armour deck: 5,91" / 150 mm, Conning tower: 13,78" / 350 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric cruising motors plus geared drives, 4 shafts, 89.382 shp / 66.679 Kw = 25,50 kts
   Range 8.500nm at 14,00 kts
   Bunker at max displacement = 4.723 tons

Complement:
   1.548 - 2.013

Cost:
   £11,165 million / $44,658 million

Distribution of weights at normal displacement:
   Armament: 3.031 tons, 6,7 %
   Armour: 16.210 tons, 35,9 %
      - Belts: 4.395 tons, 9,7 %
      - Torpedo bulkhead: 1.170 tons, 2,6 %
      - Armament: 3.746 tons, 8,3 %
      - Armour Deck: 6.522 tons, 14,4 %
      - Conning Tower: 376 tons, 0,8 %
   Machinery: 3.078 tons, 6,8 %
   Hull, fittings & equipment: 17.292 tons, 38,3 %
   Fuel, ammunition & stores: 4.886 tons, 10,8 %
   Miscellaneous weights: 650 tons, 1,4 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     50.201 lbs / 22.771 Kg = 17,5 x 17,9 " / 455 mm shells or 8,5 torpedoes
   Stability (Unstable if below 1.00): 1,00
   Metacentric height 6,1 ft / 1,9 m
   Roll period: 19,5 seconds
   Steadiness   - As gun platform (Average = 50 %): 69 %
         - Recoil effect (Restricted arc if above 1.00): 0,66
   Seaboat quality  (Average = 1.00): 1,05

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,591
   Length to Beam Ratio: 6,24 : 1
   'Natural speed' for length: 26,77 kts
   Power going to wave formation at top speed: 49 %
   Trim (Max stability = 0, Max steadiness = 100): 66
   Bow angle (Positive = bow angles forward): 9,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      22,97 ft / 7,00 m
      - Forecastle (10 %):   18,04 ft / 5,50 m
      - Mid (50 %):      18,04 ft / 5,50 m
      - Quarterdeck (15 %):   18,04 ft / 5,50 m
      - Stern:      18,04 ft / 5,50 m
      - Average freeboard:   18,24 ft / 5,56 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 90,0 %
      - Above water (accommodation/working, high = better): 132,6 %
   Waterplane Area: 59.701 Square feet or 5.546 Square metres
   Displacement factor (Displacement / loading): 96 %
   Structure weight / hull surface area: 222 lbs/sq ft or 1.086 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,97
      - Longitudinal: 1,25
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent


mentat


it's quite a Bruiser

  - but with Stability at 1.00 - there is no reserve in case of damage - and you have Steadiness at 69% - so there is plenty of scope to adjust the trim - many advise going for 1.10 Stability or close to it .....

ledeper

Tirpitz,

Esc Bb laid down 1922

Displacement:
   40.423 t light; 42.688 t standard; 45.290 t normal; 47.371 t full load

Dimensions: Length overall / water x beam x draught
   752,27 ft / 749,67 ft x 114,83 ft x 32,64 ft (normal load)
   229,29 m / 228,50 m x 35,00 m  x 9,95 m

Armament:
      8 - 17,91" / 455 mm guns (4x2 guns), 2.874,11lbs / 1.303,67kg shells, 1922 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, evenly spread, 2 raised mounts
     Aft Main mounts separated by engine room
      12 - 5,91" / 150 mm guns (6x2 guns), 102,98lbs / 46,71kg shells, 1922 Model
     Quick firing guns in deck mounts
     on side, all amidships
      10 - 1,57" / 40,0 mm guns in single mounts, 1,95lbs / 0,89kg shells, 1922 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread
   Weight of broadside 24.248 lbs / 10.999 kg
   Shells per gun, main battery: 100

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13,8" / 350 mm   445,05 ft / 135,65 m   15,19 ft / 4,63 m
   Ends:   Unarmoured
   Upper:   4,72" / 120 mm   445,05 ft / 135,65 m   6,56 ft / 2,00 m
     Main Belt covers 91 % of normal length

   - Torpedo Bulkhead:
      1,97" / 50 mm   537,66 ft / 163,88 m   29,89 ft / 9,11 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13,8" / 350 mm   9,84" / 250 mm      13,8" / 350 mm
   2nd:   1,97" / 50 mm   0,79" / 20 mm            -
   3rd:   0,39" / 10 mm         -               -

   - Armour deck: 5,91" / 150 mm, Conning tower: 13,78" / 350 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric cruising motors plus geared drives, 4 shafts, 83.780 shp / 62.500 Kw = 25,25 kts
   Range 8.500nm at 14,00 kts
   Bunker at max displacement = 4.683 tons

Complement:
   1.551 - 2.017

Cost:
   £11,887 million / $47,550 million

Distribution of weights at normal displacement:
   Armament: 3.031 tons, 6,7 %
   Armour: 16.494 tons, 36,4 %
      - Belts: 4.757 tons, 10,5 %
      - Torpedo bulkhead: 1.170 tons, 2,6 %
      - Armament: 3.539 tons, 7,8 %
      - Armour Deck: 6.651 tons, 14,7 %
      - Conning Tower: 377 tons, 0,8 %
   Machinery: 2.842 tons, 6,3 %
   Hull, fittings & equipment: 17.406 tons, 38,4 %
   Fuel, ammunition & stores: 4.867 tons, 10,7 %
   Miscellaneous weights: 650 tons, 1,4 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     53.314 lbs / 24.183 Kg = 18,5 x 17,9 " / 455 mm shells or 9,1 torpedoes
   Stability (Unstable if below 1.00): 1,10
   Metacentric height 7,3 ft / 2,2 m
   Roll period: 17,8 seconds
   Steadiness   - As gun platform (Average = 50 %): 57 %
         - Recoil effect (Restricted arc if above 1.00): 0,50
   Seaboat quality  (Average = 1.00): 1,04

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,564
   Length to Beam Ratio: 6,53 : 1
   'Natural speed' for length: 27,38 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 55
   Bow angle (Positive = bow angles forward): 9,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      16,40 ft / 5,00 m
      - Forecastle (10 %):   16,40 ft / 5,00 m
      - Mid (50 %):      16,40 ft / 5,00 m
      - Quarterdeck (15 %):   16,40 ft / 5,00 m
      - Stern:      16,40 ft / 5,00 m
      - Average freeboard:   16,40 ft / 5,00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 87,7 %
      - Above water (accommodation/working, high = better): 122,6 %
   Waterplane Area: 60.876 Square feet or 5.656 Square metres
   Displacement factor (Displacement / loading): 96 %
   Structure weight / hull surface area: 222 lbs/sq ft or 1.084 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,99
      - Longitudinal: 1,09
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent