Swiss Liparus

[Carthaginian]

I'll just build one for the SSS, with capacity for a couple 300t subs. Question is, if not ordered from military yards could it be build at least to tender rules? It's not even going to go in the Swiss Military.

Well, Ingals was built before tender rules... but I seriously think that tender rules should cover it.

[Desertfox]

Quick and dirty, armor represents structural strengthening, two bays 200" x 25", keel between the two bays with two additional keels outboard.


Liparus, New Switzerland Submarine Carrier laid down 1922

Displacement:
   7,501 t light; 7,725 t standard; 10,643 t normal; 12,978 t full load

Dimensions: Length overall / water x beam x draught
   450.00 ft / 450.00 ft x 70.00 ft x 21.90 ft (normal load)
   137.16 m / 137.16 m x 21.34 m  x 6.68 m

Armament:
     4 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1922 Model
     Quick firing guns in deck mounts
     on side, evenly spread
     10 - 1.00" / 25.4 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1922 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 133 lbs / 60 kg
   Shells per gun, main battery: 120

Armour:
  - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   0.50" / 13 mm   450.00 ft / 137.16 m   12.00 ft / 3.66 m
   Ends:   Unarmoured
     Main Belt covers 154 % of normal length

  - Torpedo Bulkhead:
      0.50" / 13 mm   450.00 ft / 137.16 m   24.00 ft / 7.32 m

  - Armour deck: 0.50" / 13 mm

Machinery:
   Diesel Internal combustion generators,
   Electric motors, 4 shafts, 5,671 shp / 4,230 Kw = 15.00 kts
   Range 20,500nm at 15.00 kts
   Bunker at max displacement = 5,253 tons

Complement:
   523 - 681

Cost:
   £0.828 million / $3.310 million

Distribution of weights at normal displacement:
   Armament: 17 tons, 0.2 %
   Armour: 501 tons, 4.7 %
      - Belts: 100 tons, 0.9 %
      - Torpedo bulkhead: 200 tons, 1.9 %
      - Armament: 0 tons, 0.0 %
      - Armour Deck: 201 tons, 1.9 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 192 tons, 1.8 %
   Hull, fittings & equipment: 2,491 tons, 23.4 %
   Fuel, ammunition & stores: 3,143 tons, 29.5 %
   Miscellaneous weights: 4,300 tons, 40.4 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     19,235 lbs / 8,725 Kg = 178.1 x 6 " / 152 mm shells or 4.5 torpedoes
   Stability (Unstable if below 1.00): 1.17
   Metacentric height 3.9 ft / 1.2 m
   Roll period: 14.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 51 %
         - Recoil effect (Restricted arc if above 1.00): 0.01
   Seaboat quality  (Average = 1.00): 1.55

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.540
   Length to Beam Ratio: 6.43 : 1
   'Natural speed' for length: 21.21 kts
   Power going to wave formation at top speed: 31 %
   Trim (Max stability = 0, Max steadiness = 100): 33
   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:      17.00 ft / 5.18 m
      - Forecastle (25 %):   15.00 ft / 4.57 m
      - Mid (50 %):      12.00 ft / 3.66 m
      - Quarterdeck (20 %):   12.00 ft / 3.66 m
      - Stern:      12.00 ft / 3.66 m
      - Average freeboard:   13.33 ft / 4.06 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 72.9 %
      - Above water (accommodation/working, high = better): 100.6 %
   Waterplane Area: 21,779 Square feet or 2,023 Square metres
   Displacement factor (Displacement / loading): 200 %
   Structure weight / hull surface area: 83 lbs/sq ft or 403 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1.00
      - Longitudinal: 1.22
      - Overall: 1.02
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is adequate
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[Carthaginian]

Makes it a full warship rules veessell... but, well... I guess it'll do.

But, I'm a pint of corn liquor in so anything except Liz Taylor looks good.

[TexanCowboy]

Should I be evil enough to post it.....Nahhhhhh.  ;D

[Nobody]

My attempt.

Troja, Orange Submarine carrier laid down 1920

Displacement:
   21.755 t light; 22.371 t standard; 30.802 t normal; 37.547 t full load

Dimensions: Length overall / water x beam x draught
   708,67 ft / 695,54 ft x 104,99 ft x 19,69 ft (normal load)
   216,00 m / 212,00 m x 32,00 m  x 6,00 m

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 45.054 shp / 33.610 Kw = 22,00 kts
   Range 28.000nm at 15,00 kts
   Bunker at max displacement = 15.176 tons

Complement:
   1.162 - 1.511

Cost:
   £2,321 million / $9,284 million

Distribution of weights at normal displacement:
   Armament: 0 tons, 0,0%
   Machinery: 1.575 tons, 5,1%
   Hull, fittings & equipment: 17.980 tons, 58,4%
   Fuel, ammunition & stores: 9.047 tons, 29,4%
   Miscellaneous weights: 2.200 tons, 7,1%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     173.139 lbs / 78.535 Kg = 1.603,1 x 6 " / 152 mm shells or 15,2 torpedoes
   Stability (Unstable if below 1.00): 1,47
   Metacentric height 10,4 ft / 3,2 m
   Roll period: 13,7 seconds
   Steadiness   - As gun platform (Average = 50 %): 69 %
         - Recoil effect (Restricted arc if above 1.00): 0,00
   Seaboat quality  (Average = 1.00): 1,64

Hull form characteristics:
   Hull has raised quarterdeck
   Block coefficient: 0,750
   Length to Beam Ratio: 6,63 : 1
   'Natural speed' for length: 26,37 kts
   Power going to wave formation at top speed: 41 %
   Trim (Max stability = 0, Max steadiness = 100): 42
   Bow angle (Positive = bow angles forward): 10,00 degrees
   Stern overhang: 7,35 ft / 2,24 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      32,81 ft / 10,00 m
      - Forecastle (20%):   26,25 ft / 8,00 m
      - Mid (50%):      24,61 ft / 7,50 m
      - Quarterdeck (15%):   26,25 ft / 8,00 m (24,61 ft / 7,50 m before break)
      - Stern:      27,89 ft / 8,50 m
      - Average freeboard:   26,07 ft / 7,95 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 26,0%
      - Above water (accommodation/working, high = better): 250,5%
   Waterplane Area: 61.158 Square feet or 5.682 Square metres
   Displacement factor (Displacement / loading): 576%
   Structure weight / hull surface area: 230 lbs/sq ft or 1.121 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1,98
      - Longitudinal: 2,15
      - Overall: 2,00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is excellent
   Excellent seaboat, comfortable, rides out heavy weather easily

Internal submarine bays for 4 subs ~3000 m³(~60*8.4*6m) each. Simmed as fuel (10000 t) and misc (2000 t).

The real light displacement would be 31755 tons (submarine bay flooded), however the ship is only build from 19755 tons of steel.
Real range: 9550 nm @ 15 kn

[P3D]

Can I build it for merchant standard using destroyer rules?

[maddox]

Good try, but no sigar P3D.  But you made your point.

[P3D]