3 Bavarian Designs

Started by Kaiser Kirk, June 03, 2009, 01:09:45 AM

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Sachmle

You may want to try adding hoist armor on the 15cm guns, since they are mount/hoist and casemate, both of which allow hoist/barbette armor.
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Kaiser Kirk

Quote from: Sachmle on June 04, 2009, 04:52:03 PM
You may want to try adding hoist armor on the 15cm guns, since they are mount/hoist and casemate, both of which allow hoist/barbette armor.

Doh !  Forgot to do so when I swapped em to hoists.

Ok, final version ..I think
Quote
Breslau, Bavaria Light Cruiser laid down 1916 (Engine 1912)

Displacement:
   4,999 t light; 5,264 t standard; 5,886 t normal; 6,384 t full load

Dimensions: Length overall / water x beam x draught
   393.70 ft / 393.70 ft x 52.49 ft x 19.36 ft (normal load)
   120.00 m / 120.00 m x 16.00 m  x 5.90 m

Armament:
      4 - 5.91" / 150 mm guns in single mounts, 100.31lbs / 45.50kg shells, 1916 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      8 - 5.91" / 150 mm guns in single mounts, 100.31lbs / 45.50kg shells, 1916 Model
     Breech loading guns in casemate mounts
     on side, evenly spread
     8 guns in hull casemates - Limited use in heavy seas
      8 - 4.13" / 105 mm guns in single mounts, 38.36lbs / 17.40kg shells, 1916 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
      2 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1916 Model
     Anti-aircraft guns in deck mounts
     on centreline, all amidships, all raised mounts - superfiring
   Weight of broadside 1,514 lbs / 687 kg
   Shells per gun, main battery: 154
   6 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2.95" / 75 mm   360.89 ft / 110.00 m   9.84 ft / 3.00 m
   Ends:   Unarmoured
     Main Belt covers 141 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.98" / 25 mm   0.20" / 5 mm      0.98" / 25 mm
   2nd:   0.98" / 25 mm   0.20" / 5 mm      0.98" / 25 mm
   3rd:   0.98" / 25 mm         -               -

   - Armour deck: 1.18" / 30 mm, Conning tower: 1.97" / 50 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Electric motors, 3 shafts, 44,560 shp / 33,242 Kw = 28.00 kts
   Range 5,000nm at 12.50 kts
   Bunker at max displacement = 1,120 tons (90% coal)

Complement:
   335 - 436

Cost:
   £0.991 million / $3.964 million

Distribution of weights at normal displacement:
   Armament: 190 tons, 3.2 %
   Armour: 792 tons, 13.5 %
      - Belts: 418 tons, 7.1 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 55 tons, 0.9 %
      - Armour Deck: 305 tons, 5.2 %
      - Conning Tower: 14 tons, 0.2 %
   Machinery: 1,935 tons, 32.9 %
   Hull, fittings & equipment: 1,932 tons, 32.8 %
   Fuel, ammunition & stores: 888 tons, 15.1 %
   Miscellaneous weights: 150 tons, 2.5 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,973 lbs / 1,802 Kg = 38.6 x 5.9 " / 150 mm shells or 0.8 torpedoes
   Stability (Unstable if below 1.00): 1.22
   Metacentric height 2.8 ft / 0.8 m
   Roll period: 13.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.38
   Seaboat quality  (Average = 1.00): 1.04

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.515
   Length to Beam Ratio: 7.50 : 1
   'Natural speed' for length: 19.84 kts
   Power going to wave formation at top speed: 64 %
   Trim (Max stability = 0, Max steadiness = 100): 67
   Bow angle (Positive = bow angles forward): -10.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      21.85 ft / 6.66 m
      - Forecastle (20 %):   17.91 ft / 5.46 m
      - Mid (50 %):      17.91 ft / 5.46 m
      - Quarterdeck (15 %):   17.91 ft / 5.46 m
      - Stern:      17.91 ft / 5.46 m
      - Average freeboard:   18.23 ft / 5.56 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 134.4 %
      - Above water (accommodation/working, high = better): 113.7 %
   Waterplane Area: 13,960 Square feet or 1,297 Square metres
   Displacement factor (Displacement / loading): 93 %
   Structure weight / hull surface area: 82 lbs/sq ft or 402 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.90
      - Longitudinal: 2.58
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform

Miscellaneous weight :
100 tons fire control
12 tons torpedoes + reloads
25 tons long range wireless.
13 tons unallocated.
---

The TBG has been downgunned to 88mm, troop capacity cut to 52 (1 platoon), very slightly enlarged, regular speed to 24, while trials is 28.6.

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TGB-1, Bavaria Torpedo Gun Boat laid down 1916 (Engine 1912)

Displacement:
   198 t light; 206 t standard; 235 t normal; 259 t full load

Dimensions: Length overall / water x beam x draught
   198.49 ft / 198.49 ft x 18.37 ft x 5.64 ft (normal load)
   60.50 m / 60.50 m x 5.60 m  x 1.72 m

Armament:
      1 - 3.46" / 88.0 mm guns in single mounts, 20.79lbs / 9.43kg shells, 1916 Model
     Quick firing gun in deck mount
     on centreline aft
      1 - 1.85" / 47.0 mm guns in single mounts, 3.17lbs / 1.44kg shells, 1916 Model
     Quick firing gun in deck mount
     on centreline forward, 1 raised gun
      4 - 0.31" / 8.0 mm guns in single mounts, 0.02lbs / 0.01kg shells, 1916 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 24 lbs / 11 kg
   Shells per gun, main battery: 200
   3 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.79" / 20 mm   0.39" / 10 mm            -
   2nd:   0.39" / 10 mm         -               -
   3rd:   0.39" / 10 mm         -               -

   - Conning tower: 0.79" / 20 mm

Machinery:
   Diesel Internal combustion generators,
   Electric motors, 1 shaft, 3,864 shp / 2,882 Kw = 24.00 kts
   Range 337nm at 24.00 kts
   Bunker at max displacement = 53 tons

Complement:
   29 - 39

Cost:
   £0.040 million / $0.161 million

Distribution of weights at normal displacement:
   Armament: 3 tons, 1.3 %
   Armour: 2 tons, 1.0 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 2 tons, 0.7 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 1 tons, 0.3 %
   Machinery: 108 tons, 46.0 %
   Hull, fittings & equipment: 68 tons, 28.9 %
   Fuel, ammunition & stores: 37 tons, 15.6 %
   Miscellaneous weights: 17 tons, 7.2 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     77 lbs / 35 Kg = 3.7 x 3.5 " / 88 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.34
   Metacentric height 0.7 ft / 0.2 m
   Roll period: 9.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.11
   Seaboat quality  (Average = 1.00): 1.21

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0.400
   Length to Beam Ratio: 10.80 : 1
   'Natural speed' for length: 14.09 kts
   Power going to wave formation at top speed: 62 %
   Trim (Max stability = 0, Max steadiness = 100): 41
   Bow angle (Positive = bow angles forward): -20.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      15.58 ft / 4.75 m
      - Forecastle (20 %):   11.58 ft / 3.53 m (6.92 ft / 2.11 m aft of break)
      - Mid (50 %):      6.92 ft / 2.11 m
      - Quarterdeck (15 %):   6.92 ft / 2.11 m
      - Stern:      6.92 ft / 2.11 m
      - Average freeboard:   8.17 ft / 2.49 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 166.6 %
      - Above water (accommodation/working, high = better): 41.8 %
   Waterplane Area: 2,123 Square feet or 197 Square metres
   Displacement factor (Displacement / loading): 67 %
   Structure weight / hull surface area: 15 lbs/sq ft or 76 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.66
      - Overall: 0.56
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is extremely poor
   Good seaboat, rides out heavy weather easily

This version is slightly larger and slower, but can cram a full platoon of  soldiers on board for raids.

Misc wt:
3t torpedoes
13t troop capacity (52 troops)
1t spare
Trial Speed : 27.45

Designed as a motor gun boat.

A hotchkiss 47mm revolver cannon forward is raised in "B" to fire over the raked bow. The aft 105mm is located in "X" with the torpedoes in "Y".  MGs in 1-4 provide AP fire.
Light armor is intended to keep the crew functioning in gun battles.

trail speed : 28.6
Did they beat the drum slowly,
Did they play the fife lowly,
Did they sound the death march, as they lowered you down,
Did the band play the last post and chorus,
Did the pipes play the flowers of the forest