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Main Archive => Navalism 3 Armed Forces => Armed Forces => New Ship Designs => Topic started by: maddox on March 28, 2007, 09:37:31 AM

Title: Middle Kingdom fleet.
Post by: maddox on March 28, 2007, 09:37:31 AM
The older TB's of the Middle kingdom do have a small problem, and advantage.  The torpedo weight isn't included.

Now, the MK aquired the Parsons turbine tech from the UKA (or can buy those turbines)
So the potential new class of TB's could be something like this.

QuoteDe class, middle kingdom torpedo boat laid down 1902 (Engine 1909)

Displacement:
   199 t light; 204 t standard; 216 t normal; 226 t full load

Dimensions: Length overall / water x beam x draught
   170,60 ft / 170,60 ft x 19,03 ft x 6,89 ft (normal load)
   52,00 m / 52,00 m x 5,80 m  x 2,10 m

Armament:
      1 - 2,95" / 75,0 mm guns in single mounts, 12,87lbs / 5,84kg shells, 1902 Model
     Quick firing gun in deck mount
     on centreline forward
      4 - 0,98" / 25,0 mm guns in single mounts, 0,48lbs / 0,22kg shells, 1902 Model
     Machine guns in deck mounts
     on centreline, all amidships
   Weight of broadside 15 lbs / 7 kg
   Shells per gun, main battery: 80
   4 - 20,0" / 508 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,79" / 20 mm         -               -

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 1 shaft, 5.092 shp / 3.799 Kw = 25,50 kts
   Range 1.500nm at 8,00 kts
   Bunker at max displacement = 22 tons (100% coal)

Complement:
   27 - 36

Cost:
   £0,025 million / $0,099 million

Distribution of weights at normal displacement:
   Armament: 2 tons, 0,9%
   Armour: 1 tons, 0,5%
      - Belts: 0 tons, 0,0%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 1 tons, 0,5%
      - Armour Deck: 0 tons, 0,0%
      - Conning Tower: 0 tons, 0,0%
   Machinery: 116 tons, 53,6%
   Hull, fittings & equipment: 76 tons, 35,1%
   Fuel, ammunition & stores: 17 tons, 8,1%
   Miscellaneous weights: 4 tons, 1,9%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     64 lbs / 29 Kg = 4,9 x 3,0 " / 75 mm shells or 0,1 torpedoes
   Stability (Unstable if below 1.00): 1,10
   Metacentric height 0,5 ft / 0,2 m
   Roll period: 11,3 seconds
   Steadiness   - As gun platform (Average = 50 %): 79 %
         - Recoil effect (Restricted arc if above 1.00): 0,13
   Seaboat quality  (Average = 1.00): 1,57

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,338
   Length to Beam Ratio: 8,97 : 1
   'Natural speed' for length: 13,06 kts
   Power going to wave formation at top speed: 68 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   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:      14,76 ft / 4,50 m
      - Forecastle (20%):   14,76 ft / 4,50 m
      - Mid (50%):      9,84 ft / 3,00 m
      - Quarterdeck (15%):   7,87 ft / 2,40 m
      - Stern:      7,87 ft / 2,40 m
      - Average freeboard:   10,93 ft / 3,33 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 181,4%
      - Above water (accommodation/working, high = better): 31,6%
   Waterplane Area: 1.866 Square feet or 173 Square metres
   Displacement factor (Displacement / loading): 41%
   Structure weight / hull surface area: 15 lbs/sq ft or 73 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,39
      - Longitudinal: 6,77
      - Overall: 0,52
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is extremely poor
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Torpedo's
1905 Advanced (+1): 5000@26, 2200@35, 100kg warhead, imp. wet heater, 1t

4 front mounted tubes.
Title: Re: Middle Kingdom fleet.
Post by: Borys on March 28, 2007, 10:24:07 AM
Ahoj!
I have a nagging feeling that 4x508 is too much for such a small boat.
3x450 seems better ...

Borys
Title: Re: Middle Kingdom fleet.
Post by: maddox on March 28, 2007, 10:29:37 AM
It sims even better with 6 14" torpedo's....

It isn't me who wants torpedo's. 
Title: Re: Middle Kingdom fleet.
Post by: The Rock Doctor on March 28, 2007, 10:38:42 AM
Block co-efficient and cross-sectional hull strength will need some work...
Title: Re: Middle Kingdom fleet.
Post by: maddox on March 28, 2007, 11:20:30 AM
This better Rocky?

QuoteDe , Enter  Middle Kingdom Torpedo boat laid down 1906 (Engine 1909)

Displacement:
   300 t light; 310 t standard; 326 t normal; 339 t full load

Dimensions: Length overall / water x beam x draught
   213,25 ft / 213,25 ft x 21,33 ft x 5,25 ft (normal load)
   65,00 m / 65,00 m x 6,50 m  x 1,60 m

Armament:
      2 - 4,13" / 105 mm guns , 35,32lbs / 16,02kg shells, 1902 Model
     Quick firing guns in deck mounts
     on centreline, evenly spread
      4 - 0,98" / 25,0 mm guns in single mounts, 0,48lbs / 0,22kg shells, 1906 Model
     Machine guns in deck mounts
     on side, all amidships
   Weight of broadside 73 lbs / 33 kg
   Shells per gun, main battery: 80
   4 - 20,0" / 508 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,39" / 10 mm         -               -
   2nd:   0,39" / 10 mm         -               -

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 2 shafts, 5.811 shp / 4.335 Kw = 25,00 kts
   Range 1.500nm at 8,00 kts
   Bunker at max displacement = 29 tons (100% coal)

Complement:
   37 - 49

Cost:
   £0,040 million / $0,160 million

Distribution of weights at normal displacement:
   Armament: 9 tons, 2,8%
   Armour: 2 tons, 0,5%
      - Belts: 0 tons, 0,0%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 2 tons, 0,5%
      - Armour Deck: 0 tons, 0,0%
      - Conning Tower: 0 tons, 0,0%
   Machinery: 156 tons, 47,9%
   Hull, fittings & equipment: 129 tons, 39,5%
   Fuel, ammunition & stores: 26 tons, 8,0%
   Miscellaneous weights: 4 tons, 1,2%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     134 lbs / 61 Kg = 3,8 x 4,1 " / 105 mm shells or 0,2 torpedoes
   Stability (Unstable if below 1.00): 1,23
   Metacentric height 0,7 ft / 0,2 m
   Roll period: 10,6 seconds
   Steadiness   - As gun platform (Average = 50 %): 68 %
         - Recoil effect (Restricted arc if above 1.00): 0,33
   Seaboat quality  (Average = 1.00): 1,35

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0,478
   Length to Beam Ratio: 10,00 : 1
   'Natural speed' for length: 14,60 kts
   Power going to wave formation at top speed: 66 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   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:      16,40 ft / 5,00 m
      - Forecastle (20%):   13,12 ft / 4,00 m (11,48 ft / 3,50 m aft of break)
      - Mid (50%):      10,50 ft / 3,20 m
      - Quarterdeck (15%):   9,81 ft / 2,99 m
      - Stern:      9,81 ft / 2,99 m
      - Average freeboard:   11,21 ft / 3,42 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 176,5%
      - Above water (accommodation/working, high = better): 72,6%
   Waterplane Area: 2.971 Square feet or 276 Square metres
   Displacement factor (Displacement / loading): 49%
   Structure weight / hull surface area: 20 lbs/sq ft or 97 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 3,88
      - Overall: 0,61
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Good seaboat, rides out heavy weather easily

4 torpedo's in forward firing tubes

Cutting Edge (+3): 7000@26, 3000@35, 100kg warhead, imp. wet heater, 1t
Title: Re: Middle Kingdom fleet.
Post by: The Rock Doctor on March 28, 2007, 11:28:19 AM
It addresses the concerns in question.
Title: Re: Middle Kingdom fleet.
Post by: Desertfox on March 28, 2007, 11:35:02 AM
QuoteArmament:
      2 - 4,13" / 105 mm guns (1x2 guns), 35,32lbs / 16,02kg shells, 1902 Model
     Quick firing guns in deck mount
     on centreline
Sure its right? A twin mount amidship?
Title: Re: Middle Kingdom fleet.
Post by: maddox on March 28, 2007, 11:37:38 AM
made a mistake
modified the ship

Title: Re: Middle Kingdom fleet.
Post by: Borys on March 29, 2007, 12:59:36 AM
Ahoj!
Quote from: maddox on March 28, 2007, 10:29:37 AM
It sims even better with 6 14" torpedo's....

It isn't me who wants torpedo's. 

As we know from the author of the programme, SS is a simulator, and can be wrong, and does not work very well for small ships. Thus sims should be judged against RL examples. I do not know off 200 ton ships with 4 such large torpedos. There were boats in this size category with 3 18 inchers, but were bad boats.

I don't like the two 105mm gun either. Ship too small.

Borys


Title: Re: Middle Kingdom fleet.
Post by: Walter on March 29, 2007, 04:59:30 AM
QuoteThus sims should be judged against RL examples. I do not know off 200 ton ships with 4 such large torpedos.
The US PT boats.
*Runs for cover*
:)
Title: Re: Middle Kingdom fleet.
Post by: Borys on March 29, 2007, 05:31:53 AM
Not directly comparable.
Borys
Title: Re: Middle Kingdom fleet.
Post by: Walter on March 29, 2007, 07:10:45 AM
I know that one cannot compare a 50 tons 1940s PT boat with a 200 ton 1900s torpedo boat, but I just had to say it. :D
Title: Re: Middle Kingdom fleet.
Post by: Desertfox on March 29, 2007, 08:00:24 AM
Well my own Turbinias are pretty much 1900 50 ton PT boats. But China wouldnt know that as they are right now a "black" program (F-117 style).
Title: Re: Middle Kingdom fleet.
Post by: Walter on March 29, 2007, 08:17:09 AM
1900 PT-boats?!? That's quite a lot!
... (Oh, wait! You mean the year 1900) ;D
Title: Re: Middle Kingdom fleet.
Post by: Phoenix on April 01, 2007, 01:22:05 PM
But do you guys think I can use these boaties ? Because I need to replace some 50-ish rather dated TB's...
Title: Re: Middle Kingdom fleet.
Post by: Ithekro on April 01, 2007, 02:47:36 PM
I'm more interested in seeing the rest of the fleet.  The "Green" Fleet.  :o
Title: Re: Middle Kingdom fleet.
Post by: Walter on April 01, 2007, 02:55:55 PM
QuoteBecause I need to replace some 50-ish rather dated TB's...
Dated? Guess I won't mention that 1853 ship that is still around (though "Discarded from pennant list"). :)
QuoteI'm more interested in seeing the rest of the fleet.  The "Green" Fleet.
For some reason I don't think you want to know what that fleet looks like...
Title: Re: Middle Kingdom fleet.
Post by: Ithekro on April 01, 2007, 03:09:31 PM
The Middle Kingdoms Fleet does not worry the Riddermark.  Rohan has always hoped to keep the respect of the Middle Kingdom for being a nation even older then that of the Dragon Throne.

The Swiss on the other hand...would probably like to see what they will have to be designing against in the near future.
Title: Re: Middle Kingdom fleet.
Post by: Desertfox on April 02, 2007, 08:14:50 AM
"I tell you we need more destroyers!"

QuoteBut do you guys think I can use these boaties ? Because I need to replace some 50-ish rather dated TB's...
Phoenix, they are slower than my own and have less guns and really short range, of course you can use them. I certainly wont complain if you build them.  ;D