Bavarian Kleiner Kreuzer

Started by Borys, June 26, 2007, 02:12:44 AM

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Bazhell

I found only this in the tech rules

And some other miscellaneous propulsion technology:
1906 Oil-firing boilers
     allows bunkers with larger than 10% percentage for oil

Do i have to research this first? What are the prerequisites?

Korpen

#16
Quote from: Bazhell on August 21, 2007, 01:53:04 PM
I found only this in the tech rules

And some other miscellaneous propulsion technology:
1906 Oil-firing boilers
     allows bunkers with larger than 10% percentage for oil

Do i have to research this first? What are the prerequisites?
Yes, you do need to research that tech first, but the only prerequisite is that the year is 1906 or later.
By 1/1908 there are only a handful of countries that have it, and not all with it are using it.
Card-carrying member of the Battlecruiser Fan Club.

Bazhell

Augsburg, Bavaria Kleiner Kreuzer laid down 1906

Displacement:
   3.642 t light; 3.779 t standard; 4.124 t normal; 4.400 t full load

Dimensions: Length overall / water x beam x draught
   360,89 ft / 360,89 ft x 39,37 ft x 18,04 ft (normal load)
   110,00 m / 110,00 m x 12,00 m  x 5,50 m

Armament:
      4 - 4,13" / 105 mm guns in single mounts, 35,32lbs / 16,02kg shells, 1906 Model
     Breech loading guns in deck mounts
     on centreline ends, evenly spread
      8 - 4,13" / 105 mm guns in single mounts, 35,32lbs / 16,02kg shells, 1906 Model
     Breech loading guns in deck mounts
     on side, all amidships
   Weight of broadside 424 lbs / 192 kg
   Shells per gun, main battery: 200
   4 - 18,0" / 457,2 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   4,00" / 102 mm   295,28 ft / 90,00 m   7,51 ft / 2,29 m
   Ends:   2,00" / 51 mm     65,62 ft / 20,00 m   7,51 ft / 2,29 m
   Upper:   2,00" / 51 mm   295,28 ft / 90,00 m   8,01 ft / 2,44 m
     Main Belt covers 126% of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1,00" / 25 mm   1,00" / 25 mm            -
   2nd:   1,00" / 25 mm   1,00" / 25 mm            -

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

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 4 shafts, 20.143 shp / 15.027 Kw = 24,20 kts
   Range 1.500nm at 15,00 kts
   Bunker at max displacement = 621 tons (100% coal)

Complement:
   256 - 334

Cost:
   £0,372 million / $1,487 million

Distribution of weights at normal displacement:
   Armament: 53 tons, 1,3%
   Armour: 1.009 tons, 24,5%
      - Belts: 588 tons, 14,3%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 38 tons, 0,9%
      - Armour Deck: 371 tons, 9,0%
      - Conning Tower: 11 tons, 0,3%
   Machinery: 1.427 tons, 34,6%
   Hull, fittings & equipment: 1.145 tons, 27,8%
   Fuel, ammunition & stores: 482 tons, 11,7%
   Miscellaneous weights: 8 tons, 0,2%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     2.784 lbs / 1.263 Kg = 78,8 x 4,1 " / 105 mm shells or 0,7 torpedoes
   Stability (Unstable if below 1.00): 1,12
   Metacentric height 1,5 ft / 0,5 m
   Roll period: 13,3 seconds
   Steadiness   - As gun platform (Average = 50 %): 93 %
         - Recoil effect (Restricted arc if above 1.00): 0,23
   Seaboat quality  (Average = 1.00): 1,32

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0,563
   Length to Beam Ratio: 9,17 : 1
   'Natural speed' for length: 19,00 kts
   Power going to wave formation at top speed: 58 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   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:      20,90 ft / 6,37 m
      - Forecastle (20%):   20,90 ft / 6,37 m (13,29 ft / 4,05 m aft of break)
      - Mid (50%):      13,29 ft / 4,05 m
      - Quarterdeck (15%):   13,29 ft / 4,05 m
      - Stern:      13,29 ft / 4,05 m
      - Average freeboard:   14,81 ft / 4,51 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 122,9%
      - Above water (accommodation/working, high = better): 85,1%
   Waterplane Area: 10.038 Square feet or 933 Square metres
   Displacement factor (Displacement / loading): 96%
   Structure weight / hull surface area: 62 lbs/sq ft or 304 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,96
      - Longitudinal: 2,13
      - Overall: 1,04
   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
   Good seaboat, rides out heavy weather easily

Last try, 12 guns, more armor, reduced range and increased cruising speed, and no more oil firing :)


Borys

Ahoj!
If you start in 1/1906, you had a 20% chance of getting the tech in 1/1908.
2/1908 - 60% chance
1/1909 - you get  it automatically.


As to the Augsburg - same principle as to oil fired applies to the engines - you have to use 1905 ones. Or, if you research/buy 1909 engines, you can use those.
IMO very nice ships for their role:
- to get the fleet started
- to support Torpedo Boats in the Adriatic - very survivable

But I think even such planned use the range could be around 3000.
Also to be considered is giving hoists to the "centerline - ends" guns. Very good flavour for the period.

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

P3D

Get two 6" at the ends, the ship is a bit on the heavy side, and you don't have to sacrifice armament for range.

Rearrange armor - 3" is enough against 6" guns, but make the belt a bit deeper (9-12'). Forget upper and end armor, the turtledeck is providing some flooding protection. Also, armor deck is just too thick, especially as the ship already has a belt.
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

Bazhell

Hoists were not available in 1906 and i like the ROF of the 10,5 cm (14 to 16), they are designed to operate in the Adria in a support role of the TB. I will go over the armour once more.

Bazhell

Augsburg, Bavaria Kleiner Kreuzer laid down 1906

Displacement:
   3.000 t light; 3.137 t standard; 3.655 t normal; 4.069 t full load

Dimensions: Length overall / water x beam x draught
   377,30 ft / 377,30 ft x 36,09 ft x 18,04 ft (normal load)
   115,00 m / 115,00 m x 11,00 m  x 5,50 m

Armament:
      4 - 4,13" / 105 mm guns in single mounts, 35,32lbs / 16,02kg shells, 1906 Model
     Breech loading guns in deck mounts
     on centreline ends, evenly spread
      10 - 4,13" / 105 mm guns in single mounts, 35,32lbs / 16,02kg shells, 1906 Model
     Breech loading guns in deck mounts
     on side, all amidships
   Weight of broadside 494 lbs / 224 kg
   Shells per gun, main battery: 200
   4 - 18,0" / 457,2 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3,00" / 76 mm   344,49 ft / 105,00 m   12,00 ft / 3,66 m
   Ends:   Unarmoured
     Main Belt covers 140% of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1,00" / 25 mm   1,00" / 25 mm            -
   2nd:   1,00" / 25 mm   1,00" / 25 mm            -

   - Armour deck: 1,00" / 25 mm, Conning tower: 3,00" / 76 mm

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 4 shafts, 20.253 shp / 15.109 Kw = 25,00 kts
   Range 2.500nm at 15,00 kts
   Bunker at max displacement = 932 tons (100% coal)

Complement:
   234 - 305

Cost:
   £0,352 million / $1,408 million

Distribution of weights at normal displacement:
   Armament: 62 tons, 1,7%
   Armour: 721 tons, 19,7%
      - Belts: 490 tons, 13,4%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 45 tons, 1,2%
      - Armour Deck: 171 tons, 4,7%
      - Conning Tower: 15 tons, 0,4%
   Machinery: 1.394 tons, 38,1%
   Hull, fittings & equipment: 738 tons, 20,2%
   Fuel, ammunition & stores: 655 tons, 17,9%
   Miscellaneous weights: 85 tons, 2,3%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1.428 lbs / 648 Kg = 40,4 x 4,1 " / 105 mm shells or 0,5 torpedoes
   Stability (Unstable if below 1.00): 1,28
   Metacentric height 1,7 ft / 0,5 m
   Roll period: 11,6 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0,33
   Seaboat quality  (Average = 1.00): 1,68

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0,521
   Length to Beam Ratio: 10,45 : 1
   'Natural speed' for length: 19,42 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 60
   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:      20,90 ft / 6,37 m
      - Forecastle (20%):   20,90 ft / 6,37 m (13,29 ft / 4,05 m aft of break)
      - Mid (50%):      13,29 ft / 4,05 m
      - Quarterdeck (15%):   13,29 ft / 4,05 m
      - Stern:      13,29 ft / 4,05 m
      - Average freeboard:   14,81 ft / 4,51 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 139,7%
      - Above water (accommodation/working, high = better): 85,1%
   Waterplane Area: 9.246 Square feet or 859 Square metres
   Displacement factor (Displacement / loading): 87%
   Structure weight / hull surface area: 40 lbs/sq ft or 194 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,63
      - Longitudinal: 1,59
      - Overall: 0,69
   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
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Without the former armour she came out 600 t light, i think for the adria she will be fine, but i would not sail her across the North Atlantic....

Borys

Ahoj!
Dude, you've got seaboat quality of almost 1,7.
With 1 being average, and 2 maximum.
You can use her for Antarctic expeditions ... in winter ...
A superb gunboat!

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

Korpen

Quote from: Bazhell on August 25, 2007, 02:36:16 AM
Augsburg, Bavaria Kleiner Kreuzer laid down 1906
   Hull strength (Relative):
      - Cross-sectional: 0,63
      - Longitudinal: 1,59
      - Overall: 0,69
That is is not at all good...
Card-carrying member of the Battlecruiser Fan Club.

maddox

She will keep the sea perfectly, untill she  breaks up.

The rule is that ships bigger than the destroyer technology of the country allows, need a structural strenght of 1.

This is why the French sloops, 1000 tons + , fill in the role of very slow destroyers. And have a hull strength of 1.

Bazhell

ups  :o

One last try, or i will scrap that thing that looks like a ship.

The Rock Doctor

It's just too small a hull for everything you're trying to do.  Your previous design was considerably better off - tinker with that one.

Borys

#27
Ahoj!
Adding a yard or so of beam should fix it.
Seems I stopped checkling hull strength lately ...:)

ADDED LATER:
Usually I'd complain a bit about such a high, non-period cruise speed. Of the cruiser, especially. However, I perceive (rightly or wrongly) those KK and GTB to be a "single package" running about together in the Adria.

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

Korpen

Quote from: Borys on August 25, 2007, 09:33:28 AM
Ahoj!
Adding a yard or so of beam should fix it.
Seems I stopped checkling hull strength lately ...:)

ADDED LATER:
Usually I'd complain a bit about such a high, non-period cruise speed. Of the cruiser, especially. However, I perceive (rightly or wrongly) those KK and GTB to be a "single package" running about together in the Adria.

Borys
There are quite a bit of sense in having a fairly high cursing speed with direct-drive turbines, as they are optimized for higher speed their fuel economy at lower speeds are much worse then reproducing engines, but around 15kts (depending on the turbine in question) their economy starts to be better.
Card-carrying member of the Battlecruiser Fan Club.

P3D

The last installment just did not have the displacement - no wonder you had below unity hull strength. And why your engineering spaces took 90% of your hull length - more than excessive, consider reducing the engine power (and speed).
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