New Post-War DKB ships...

Started by The Rock Doctor, February 23, 2008, 11:37:46 AM

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The Rock Doctor

February 23, 2008, 11:37:46 AM
Two classes to propose.

The 1909 large torpedo boat (GTB) adds to DKB light forces, and has a potent load of torpedos.  These are carried in two twin carriages amidships, and two single tubes immediately behind the forecastle.

DKB GTB 1909, laid down 1909

Displacement:
   747 t light; 780 t standard; 875 t normal; 951 t full load

Dimensions: Length overall / water x beam x draught
   282.15 ft / 278.87 ft x 27.89 ft x 9.84 ft (normal load)
   86.00 m / 85.00 m x 8.50 m  x 3.00 m

Armament:
      3 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1909 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, majority aft, 1 raised mount aft
      1 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1909 Model
     Quick firing gun in deck mount
     on centreline amidships, 1 raised gun
      2 - 0.30" / 7.7 mm guns in single mounts, 0.01lbs / 0.01kg shells, 1909 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 108 lbs / 49 kg
   Shells per gun, main battery: 250
   6 - 19.7" / 500 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.98" / 25 mm         -         0.98" / 25 mm
   2nd:   0.98" / 25 mm         -               -
   3rd:   0.39" / 10 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 20,000 shp / 14,920 Kw = 30.29 kts
   Range 4,500nm at 10.00 kts (Bunkerage = 171 tons)

Complement:
   79 - 104

Cost:
   £0.103 million / $0.411 million

Distribution of weights at normal displacement:
   Armament: 13 tons, 1.5 %
   Armour: 8 tons, 0.9 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 8 tons, 0.9 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 467 tons, 53.4 %
   Hull, fittings & equipment: 231 tons, 26.4 %
   Fuel, ammunition & stores: 128 tons, 14.6 %
   Miscellaneous weights: 28 tons, 3.2 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     189 lbs / 86 Kg = 5.4 x 4.1 " / 105 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.23
   Metacentric height 1.1 ft / 0.3 m
   Roll period: 11.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.28
   Seaboat quality  (Average = 1.00): 0.73

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.400
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 16.70 kts
   Power going to wave formation at top speed: 67 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      16.73 ft / 5.10 m
      - Forecastle (10 %):   16.73 ft / 5.10 m
      - Mid (20 %):      16.73 ft / 5.10 m (8.86 ft / 2.70 m aft of break)
      - Quarterdeck (15 %):   8.86 ft / 2.70 m
      - Stern:      8.86 ft / 2.70 m
      - Average freeboard:   10.43 ft / 3.18 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 188.2 %
      - Above water (accommodation/working, high = better): 60.9 %
   Waterplane Area: 4,787 Square feet or 445 Square metres
   Displacement factor (Displacement / loading): 45 %
   Structure weight / hull surface area: 27 lbs/sq ft or 132 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.21
      - Overall: 0.54
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

The Rock Doctor

#1
February 23, 2008, 11:41:37 AM
This 1909 kleiner kreuzer is intended for fleet screening duties; she sacrifices some speed and armor for firepower.  Although it can be argued that an all-centreline armament of ~5 guns would be more efficient, the eight gun "broadside" layout has been retained as it allows greater overall firepower against more targets in the general chaos of an enemy torpedo attack.

Think the 1916 Emden for layout...

DKB KK, laid down 1909

Displacement:
   3,786 t light; 4,005 t standard; 4,687 t normal; 5,233 t full load

Dimensions: Length overall / water x beam x draught
   452.83 ft / 449.48 ft x 44.95 ft x 18.04 ft (normal load)
   138.02 m / 137.00 m x 13.70 m  x 5.50 m

Armament:
      4 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1909 Model
     Breech loading guns in deck mounts with hoists
     on side, all forward
      2 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1909 Model
     Breech loading guns in deck mounts with hoists
     on side, all aft
      2 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1909 Model
     Breech loading guns in deck mounts with hoists
     on centreline, all aft, 1 raised mount
      2 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1909 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
      4 - 0.30" / 7.7 mm guns in single mounts, 0.01lbs / 0.01kg shells, 1909 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 827 lbs / 375 kg
   Shells per gun, main battery: 250
   2 - 19.7" / 500 mm submerged torpedo tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   1.97" / 50 mm   328.08 ft / 100.00 m   10.01 ft / 3.05 m
   Ends:   0.98" / 25 mm   121.36 ft / 36.99 m   10.01 ft / 3.05 m
     Main Belt covers 112 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.98" / 25 mm         -         0.98" / 25 mm
   2nd:   0.98" / 25 mm         -         0.98" / 25 mm
   3rd:   0.98" / 25 mm         -               -
   4th:   0.98" / 25 mm         -               -
   5th:   0.39" / 10 mm         -               -

   - Armour deck: 0.98" / 25 mm, Conning tower: 1.97" / 50 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 25,000 shp / 18,650 Kw = 25.96 kts
   Range 10,000nm at 10.00 kts (Bunkerage = 1,228 tons)

Complement:
   283 - 368

Cost:
   £0.386 million / $1.544 million

Distribution of weights at normal displacement:
   Armament: 103 tons, 2.2 %
   Armour: 584 tons, 12.5 %
      - Belts: 308 tons, 6.6 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 30 tons, 0.6 %
      - Armour Deck: 235 tons, 5.0 %
      - Conning Tower: 12 tons, 0.3 %
   Machinery: 1,190 tons, 25.4 %
   Hull, fittings & equipment: 1,747 tons, 37.3 %
   Fuel, ammunition & stores: 901 tons, 19.2 %
   Miscellaneous weights: 161 tons, 3.4 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,775 lbs / 2,166 Kg = 46.4 x 5.9 " / 150 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.24
   Metacentric height 2.2 ft / 0.7 m
   Roll period: 12.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.50
   Seaboat quality  (Average = 1.00): 1.47

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0.450
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 21.20 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 48
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: -3.28 ft / -1.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      19.03 ft / 5.80 m
      - Forecastle (20 %):   17.06 ft / 5.20 m (15.09 ft / 4.60 m aft of break)
      - Mid (50 %):      15.09 ft / 4.60 m
      - Quarterdeck (15 %):   15.09 ft / 4.60 m
      - Stern:      15.09 ft / 4.60 m
      - Average freeboard:   15.64 ft / 4.77 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 108.9 %
      - Above water (accommodation/working, high = better): 130.9 %
   Waterplane Area: 12,887 Square feet or 1,197 Square metres
   Displacement factor (Displacement / loading): 119 %
   Structure weight / hull surface area: 78 lbs/sq ft or 379 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.72
      - 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

Valles

#2
February 23, 2008, 10:22:02 PM
And my life just gets harder... ^_^

Hm. Compared to my own types, the cruiser is less capable against actual torpedo boats, more dangerous to destroyers. Six to eight knots faster in a calm sea, probably less in a rougher one. No armor. Fairly equivalent, actually, albeit in a very different style. A relatively quick vessel with the firepower to swat them out of the way to let the destroyers through and the armor to survive the role might be called for, but would probably require disproportionate tonnage to pull off with acceptable sea and handling characteristics. All in all, given the practice of carrying 150mm guns on destroyers, existing hardware should deal with it fine, though more will be needed.

The destroyer - pardon, Grossertorpedoboot - is actually more likely to drive the Maori to change something in their own fleet, since there's a way to deal with it that can play to existing strengths. If forced to battle in rough seas its speed and overall effectiveness would be crippled - whereas Maori ships are well able to cope with bad weather. Therefore, attack during typhoon season. ^_^
======================================================

When the mother ship's cannon cracked the signal to return
The clouds were building bastions in the swirling up above
Poseidon the King and the Wind his jester
Dancing with the Lightning Lady Fair
Dancing with the Lightning Lady Fair

P3D

#3
February 24, 2008, 12:26:56 AM
Due to the different geographical location getting some higher seakeeping on the GTB would be desirable, even on the expense of speed, as the HSF is not confined to the Baltic and the North Sea.

0.7 seakeeping is 'average' at 27kts.
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

The Rock Doctor

#4
February 24, 2008, 07:55:15 AM
Valles:  Life is struggle, or something like that.  I view the KK as being adequately armored against most torpedoboat/destroyer fire, such as Swiss boats, which don't mount more than about 4". 

Maorian TB/DD designs are atypical with the 150mm guns, but unless I'm mistaken, you've not actually built any yet...

Typhoons?  Set aside a tonne of miscellaneous weight for a supply of Gravol or something...

P3D:  Something like this?

GTB09B, laid down 1909

Displacement:
   744 t light; 777 t standard; 873 t normal; 950 t full load

Dimensions: Length overall / water x beam x draught
   295.28 ft / 291.99 ft x 26.57 ft x 9.84 ft (normal load)
   90.00 m / 89.00 m x 8.10 m  x 3.00 m

Armament:
      3 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1909 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, majority aft, 1 raised mount aft
      1 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1909 Model
     Quick firing gun in deck mount
     on centreline amidships, 1 raised gun
      2 - 0.30" / 7.7 mm guns in single mounts, 0.01lbs / 0.00kg shells, 1909 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 108 lbs / 49 kg
   Shells per gun, main battery: 250
   6 - 19.7" / 500 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.98" / 25 mm         -         0.98" / 25 mm
   2nd:   0.98" / 25 mm         -               -
   3rd:   0.39" / 10 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 17,000 shp / 12,682 Kw = 29.44 kts
   Range 4,500nm at 10.00 kts (Bunkerage = 173 tons)

Complement:
   79 - 104

Cost:
   £0.100 million / $0.400 million

Distribution of weights at normal displacement:
   Armament: 13 tons, 1.5 %
   Armour: 8 tons, 0.9 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 8 tons, 0.9 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 448 tons, 51.3 %
   Hull, fittings & equipment: 247 tons, 28.3 %
   Fuel, ammunition & stores: 129 tons, 14.8 %
   Miscellaneous weights: 28 tons, 3.2 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     211 lbs / 96 Kg = 6.0 x 4.1 " / 105 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.17
   Metacentric height 0.9 ft / 0.3 m
   Roll period: 11.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.42
   Seaboat quality  (Average = 1.00): 1.01

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.400
   Length to Beam Ratio: 10.99 : 1
   'Natural speed' for length: 17.09 kts
   Power going to wave formation at top speed: 63 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      17.39 ft / 5.30 m
      - Forecastle (10 %):   17.39 ft / 5.30 m
      - Mid (20 %):      17.39 ft / 5.30 m (9.51 ft / 2.90 m aft of break)
      - Quarterdeck (15 %):   9.51 ft / 2.90 m
      - Stern:      9.51 ft / 2.90 m
      - Average freeboard:   11.09 ft / 3.38 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 181.7 %
      - Above water (accommodation/working, high = better): 64.7 %
   Waterplane Area: 4,777 Square feet or 444 Square metres
   Displacement factor (Displacement / loading): 52 %
   Structure weight / hull surface area: 26 lbs/sq ft or 129 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.44
      - Overall: 0.56
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform

Korpen

#5
March 31, 2008, 02:33:30 PM
Quote from: The Rock Doctor on February 24, 2008, 07:55:15 AM

Typhoons?  Set aside a tonne of miscellaneous weight for a supply of Gravol or something...

Gravol, you forgot the dots? Or are you not talking about gravöl (funeral beer) here?
Card-carrying member of the Battlecruiser Fan Club.

The Rock Doctor

#6
March 31, 2008, 04:14:37 PM
No, I mean something else - a stock of beer is probably automatically included in DKB designs.

Sachmle

#7
April 01, 2008, 12:12:32 AM
I believe that's what is used in the liquid filled spaces in the TDS. ;D

(the beer that is, not the gravol)
"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

The Rock Doctor

#8
April 01, 2008, 06:45:47 AM
One of those rare occasions where consuming too much alcohol not only affects your motor functions but also your resistence to underwater detonations.

The Rock Doctor

#9
May 09, 2008, 07:51:06 PM
Since new destroyers are all the rage, a DKB design.  I think I actually like it better than my GC cans - oh well.

Enter ship name, Enter country Enter ship type laid down 1909 (Engine 1912)

Displacement:
   1,000 t light; 1,044 t standard; 1,201 t normal; 1,327 t full load

Dimensions: Length overall / water x beam x draught
   344.49 ft / 341.21 ft x 31.30 ft x 9.84 ft (normal load)
   105.00 m / 104.00 m x 9.54 m  x 3.00 m

Armament:
      4 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1909 Model
     Breech loading guns in deck mounts with hoists
     on centreline, evenly spread, 2 raised mounts
     Aft Main mounts separated by engine room
      2 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1909 Model
     Quick firing guns in deck mounts
     on side, all amidships, all raised mounts - superfiring
      2 - 0.30" / 7.7 mm guns in single mounts, 0.01lbs / 0.00kg shells, 1909 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 144 lbs / 65 kg
   Shells per gun, main battery: 250
   6 - 19.7" / 500 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.98" / 25 mm         -         0.98" / 25 mm
   2nd:   0.98" / 25 mm         -               -
   3rd:   0.39" / 10 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 21,000 shp / 15,666 Kw = 30.08 kts
   Range 7,000nm at 10.00 kts (Bunkerage = 282 tons)

Complement:
   101 - 132

Cost:
   £0.134 million / $0.534 million

Distribution of weights at normal displacement:
   Armament: 18 tons, 1.5 %
   Armour: 11 tons, 0.9 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 11 tons, 0.9 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 596 tons, 49.6 %
   Hull, fittings & equipment: 326 tons, 27.1 %
   Fuel, ammunition & stores: 201 tons, 16.8 %
   Miscellaneous weights: 50 tons, 4.2 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     323 lbs / 147 Kg = 9.2 x 4.1 " / 105 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.29
   Metacentric height 1.4 ft / 0.4 m
   Roll period: 11.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.32
   Seaboat quality  (Average = 1.00): 1.02

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.400
   Length to Beam Ratio: 10.90 : 1
   'Natural speed' for length: 18.47 kts
   Power going to wave formation at top speed: 61 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      17.06 ft / 5.20 m
      - Forecastle (10 %):   17.06 ft / 5.20 m
      - Mid (32 %):      17.06 ft / 5.20 m (9.19 ft / 2.80 m aft of break)
      - Quarterdeck (15 %):   9.19 ft / 2.80 m
      - Stern:      9.19 ft / 2.80 m
      - Average freeboard:   11.71 ft / 3.57 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 176.9 %
      - Above water (accommodation/working, high = better): 94.0 %
   Waterplane Area: 6,574 Square feet or 611 Square metres
   Displacement factor (Displacement / loading): 64 %
   Structure weight / hull surface area: 29 lbs/sq ft or 140 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 0.95
      - Overall: 0.53
   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

The Rock Doctor

#10
May 24, 2008, 07:43:21 PM
The Kaiserin Augusta class is an up-engined variant of the Gefion, with the speed to keep pace with the Moltke class SKs.


Enter ship name, Enter country Enter ship type laid down 1909 (Engine 1912)

Displacement:
   4,083 t light; 4,304 t standard; 4,825 t normal; 5,242 t full load

Dimensions: Length overall / water x beam x draught
   459.39 ft / 456.04 ft x 45.60 ft x 18.04 ft (normal load)
   140.02 m / 139.00 m x 13.90 m  x 5.50 m

Armament:
      4 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1909 Model
     Breech loading guns in deck mounts with hoists
     on side, all forward
      2 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1909 Model
     Breech loading guns in deck mounts with hoists
     on side, all aft
      2 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1909 Model
     Breech loading guns in deck mounts with hoists
     on centreline, all aft, 1 raised mount
      2 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1909 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
      4 - 0.30" / 7.7 mm guns in single mounts, 0.01lbs / 0.00kg shells, 1909 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 827 lbs / 375 kg
   Shells per gun, main battery: 250
   4 - 19.7" / 500 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   1.97" / 50 mm   344.49 ft / 105.00 m   11.02 ft / 3.36 m
   Ends:   0.98" / 25 mm   111.52 ft / 33.99 m   11.02 ft / 3.36 m
     Main Belt covers 116 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.98" / 25 mm         -         0.98" / 25 mm
   2nd:   0.98" / 25 mm         -         0.98" / 25 mm
   3rd:   0.98" / 25 mm         -               -
   4th:   0.98" / 25 mm         -               -
   5th:   0.39" / 10 mm         -               -

   - Armour deck: 0.98" / 25 mm, Conning tower: 1.97" / 50 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 34,000 shp / 25,364 Kw = 27.97 kts
   Range 10,000nm at 10.00 kts (Bunkerage = 937 tons)

Complement:
   289 - 376

Cost:
   £0.420 million / $1.678 million

Distribution of weights at normal displacement:
   Armament: 103 tons, 2.1 %
   Armour: 632 tons, 13.1 %
      - Belts: 348 tons, 7.2 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 30 tons, 0.6 %
      - Armour Deck: 242 tons, 5.0 %
      - Conning Tower: 12 tons, 0.3 %
   Machinery: 1,356 tons, 28.1 %
   Hull, fittings & equipment: 1,815 tons, 37.6 %
   Fuel, ammunition & stores: 742 tons, 15.4 %
   Miscellaneous weights: 177 tons, 3.7 %
   -100 t:  Fire Control
   -25 t:  Wireless
   -25 t:  Sehende Auges
   -4 t:  Torpedoes
   -23 t:  Weight Reserve

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,434 lbs / 2,011 Kg = 43.1 x 5.9 " / 150 mm shells or 0.9 torpedoes
   Stability (Unstable if below 1.00): 1.16
   Metacentric height 2.0 ft / 0.6 m
   Roll period: 13.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.50
   Seaboat quality  (Average = 1.00): 1.23

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0.450
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 21.36 kts
   Power going to wave formation at top speed: 54 %
   Trim (Max stability = 0, Max steadiness = 100): 57
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: -3.28 ft / -1.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      19.03 ft / 5.80 m
      - Forecastle (20 %):   17.06 ft / 5.20 m (15.09 ft / 4.60 m aft of break)
      - Mid (50 %):      15.09 ft / 4.60 m
      - Quarterdeck (15 %):   15.09 ft / 4.60 m
      - Stern:      15.09 ft / 4.60 m
      - Average freeboard:   15.64 ft / 4.77 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 113.0 %
      - Above water (accommodation/working, high = better): 116.6 %
   Waterplane Area: 13,266 Square feet or 1,232 Square metres
   Displacement factor (Displacement / loading): 111 %
   Structure weight / hull surface area: 79 lbs/sq ft or 387 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.66
      - 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
   Good seaboat, rides out heavy weather easily

The Rock Doctor

#11
May 24, 2008, 07:49:20 PM
A proposed gunboat - primarily for patrol and coastal escort work in locations where enemy light forces might be operating.  The design is loosely broadly based on the historical Dutch "Bruno" class armored gunboats.


Enter ship name, Enter country Enter ship type laid down 1912

Displacement:
   542 t light; 576 t standard; 635 t normal; 682 t full load

Dimensions: Length overall / water x beam x draught
   213.25 ft / 213.25 ft x 26.25 ft x 7.22 ft (normal load)
   65.00 m / 65.00 m x 8.00 m  x 2.20 m

Armament:
      2 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1912 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread
      2 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1912 Model
     Breech loading guns in deck mounts with hoists
     on side, all amidships
      2 - 0.31" / 8.0 mm guns in single mounts, 0.02lbs / 0.01kg shells, 1912 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 141 lbs / 64 kg
   Shells per gun, main battery: 250

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   1.97" / 50 mm   138.62 ft / 42.25 m   8.01 ft / 2.44 m
   Ends:   0.98" / 25 mm     74.61 ft / 22.74 m   8.01 ft / 2.44 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.98" / 25 mm         -         0.98" / 25 mm
   2nd:   0.98" / 25 mm         -               -
   3rd:   0.39" / 10 mm         -               -

   - Armour deck: 0.59" / 15 mm, Conning tower: 1.97" / 50 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 1,200 shp / 895 Kw = 15.03 kts
   Range 3,300nm at 10.00 kts (Bunkerage = 105 tons)

Complement:
   63 - 82

Cost:
   £0.041 million / $0.163 million

Distribution of weights at normal displacement:
   Armament: 18 tons, 2.8 %
   Armour: 169 tons, 26.7 %
      - Belts: 115 tons, 18.1 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 9 tons, 1.4 %
      - Armour Deck: 43 tons, 6.7 %
      - Conning Tower: 3 tons, 0.5 %
   Machinery: 50 tons, 7.9 %
   Hull, fittings & equipment: 284 tons, 44.8 %
   Fuel, ammunition & stores: 93 tons, 14.7 %
   Miscellaneous weights: 20 tons, 3.2 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,791 lbs / 812 Kg = 50.7 x 4.1 " / 105 mm shells or 1.1 torpedoes
   Stability (Unstable if below 1.00): 1.20
   Metacentric height 0.9 ft / 0.3 m
   Roll period: 11.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.55
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0.550
   Length to Beam Ratio: 8.13 : 1
   'Natural speed' for length: 14.60 kts
   Power going to wave formation at top speed: 45 %
   Trim (Max stability = 0, Max steadiness = 100): 35
   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:      13.78 ft / 4.20 m
      - Forecastle (20 %):   13.78 ft / 4.20 m (10.01 ft / 3.05 m aft of break)
      - Mid (50 %):      10.01 ft / 3.05 m
      - Quarterdeck (15 %):   10.01 ft / 3.05 m
      - Stern:      10.01 ft / 3.05 m
      - Average freeboard:   10.76 ft / 3.28 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 53.3 %
      - Above water (accommodation/working, high = better): 118.2 %
   Waterplane Area: 3,906 Square feet or 363 Square metres
   Displacement factor (Displacement / loading): 147 %
   Structure weight / hull surface area: 42 lbs/sq ft or 204 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.88
      - Longitudinal: 3.05
      - 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

Korpen

#12
May 26, 2008, 10:30:31 AM
Quote from: The Rock Doctor on May 24, 2008, 07:43:21 PM
Armament:
      4 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1909 Model
     Breech loading guns in deck mounts with hoists
     on side, all forward
      2 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1909 Model
     Breech loading guns in deck mounts with hoists
     on side, all aft
      2 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1909 Model
     Breech loading guns in deck mounts with hoists
     on centreline, all aft, 1 raised mount
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.98" / 25 mm         -         0.98" / 25 mm
   2nd:   0.98" / 25 mm         -         0.98" / 25 mm
   3rd:   0.98" / 25 mm         -               -
   4th:   0.98" / 25 mm         -               -
   5th:   0.39" / 10 mm         -               -
Why no hoist armour for the centerline 15cm guns?

Otherwise a nice ship, could use some more mines however. ;)

Quote from: The Rock Doctor on May 24, 2008, 07:49:20 PM
A proposed gunboat - primarily for patrol and coastal escort work in locations where enemy light forces might be operating.  The design is loosely broadly based on the historical Dutch "Bruno" class armored gunboats.

Enter ship name, Enter country Enter ship type laid down 1912

Displacement:
   542 t light; 576 t standard; 635 t normal; 682 t full load
Nice little ship, contemplated something like that for myself. :)
Card-carrying member of the Battlecruiser Fan Club.

The Rock Doctor

#13
May 26, 2008, 11:22:09 AM
An oversight on the hoist armor.  I'll fix it later - that's what the weight reserve's for.

I figured that these cruisers are likely to be sticking close to large ships that need escort, so no need for mine capability.  I'll leave that to other cruisers.

Glad you approve of the gunboat...

Borys

#14
May 26, 2008, 11:38:13 AM Last Edit: May 26, 2008, 01:01:04 PM by Borys
Ahoj!
The Kaiserin Augusta has quite a punch for her size. But I think she's underarmoured.
As her opositon will also pack 6 inchers, I'd recommend a 3 inch belt. Even if you lose a gun or two.
Borys
NEDS - Not Enough Deck Space for all those guns and torpedos;
Bambi must DIE!
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