what ya think to far ahead for 1906?

Started by Tanthalas, August 31, 2007, 01:52:36 AM

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Korpen

Quote from: P³D on September 01, 2007, 07:59:57 PM
Most IRL navy would not have agreed with you. Even battleships with large caliber shells had usually 100  rounds per gun, save the Littorio, Tegethoff and the Japanese dreadnoughts classes.
A 9-10" gun should be able to make a RoF of 3RPM without any problem - and shell time of flight to 12km is around 20s. And the ammo stowage of the 8" cruisers was usually between 125 and 200 per gun.
Also, a colonial cruiser is IMO more likely to engange in several prolonged battles than a battleline.
Look again, almost all British battlecruisers and battleships had between 80 and 85 rounds per gun, just like the German battlecruisers and battleships.
In fact I have not found any dreadnought with more then 120 rounds pre gun (but I have not mad a large search either, so I do not rule it out).
Card-carrying member of the Battlecruiser Fan Club.

Tanthalas

10" final probable production version.

Italia AC-1906, Italia Armoured Cruiser laid down 1906 (Engine 1909)

Displacement:
   10,687 t light; 11,224 t standard; 12,500 t normal; 13,521 t full load

Dimensions: Length overall / water x beam x draught
   477.00 ft / 475.00 ft x 63.00 ft (Bulges 73.00 ft) x 25.00 ft (normal load)
   145.39 m / 144.78 m x 19.20 m (Bulges 22.25 m)  x 7.62 m

Armament:
      8 - 10.00" / 254 mm guns (4x2 guns), 500.00lbs / 226.80kg shells, 1906 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      12 - 5.00" / 127 mm guns in single mounts, 62.00lbs / 28.12kg shells, 1906 Model
     Breech loading guns in casemate mounts
     on side, all amidships
     12 guns in hull casemates - Limited use in heavy seas
      8 - 3.00" / 76.2 mm guns in single mounts, 13.00lbs / 5.90kg shells, 1906 Model
     Quick firing guns in casemate mounts
     on side ends, evenly spread
     8 guns in hull casemates - Limited use in heavy seas
      8 - 3.00" / 76.2 mm guns in single mounts, 13.00lbs / 5.90kg shells, 1906 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 4,952 lbs / 2,246 kg
   Shells per gun, main battery: 100

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   7.00" / 178 mm   353.50 ft / 107.75 m   10.45 ft / 3.19 m
   Ends:   4.00" / 102 mm   121.49 ft / 37.03 m   10.45 ft / 3.19 m
   Upper:   4.00" / 102 mm   353.50 ft / 107.75 m   8.00 ft / 2.44 m
     Main Belt covers 114 % of normal length

   - Torpedo Bulkhead and Bulges:
      1.00" / 25 mm   353.50 ft / 107.75 m   25.00 ft / 7.62 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   8.00" / 203 mm   4.00" / 102 mm      7.00" / 178 mm
   3rd:   5.00" / 127 mm         -               -

   - Armour deck: 2.00" / 51 mm, Conning tower: 7.00" / 178 mm

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 4 shafts, 29,811 shp / 22,239 Kw = 23.00 kts
   Range 6,000nm at 12.00 kts
   Bunker at max displacement = 2,297 tons (100% coal)

Complement:
   590 - 768

Cost:
   £1.104 million / $4.417 million

Distribution of weights at normal displacement:
   Armament: 621 tons, 5.0 %
   Armour: 3,956 tons, 31.7 %
      - Belts: 1,735 tons, 13.9 %
      - Torpedo bulkhead: 327 tons, 2.6 %
      - Armament: 1,073 tons, 8.6 %
      - Armour Deck: 741 tons, 5.9 %
      - Conning Tower: 81 tons, 0.6 %
   Machinery: 1,491 tons, 11.9 %
   Hull, fittings & equipment: 4,519 tons, 36.2 %
   Fuel, ammunition & stores: 1,813 tons, 14.5 %
   Miscellaneous weights: 100 tons, 0.8 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     15,080 lbs / 6,840 Kg = 30.2 x 10.0 " / 254 mm shells or 2.9 torpedoes
   Stability (Unstable if below 1.00): 1.06
   Metacentric height 2.8 ft / 0.8 m
   Roll period: 18.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.69
   Seaboat quality  (Average = 1.00): 1.30

Hull form characteristics:
   Hull has raised forecastle, rise aft of midbreak, low quarterdeck
   Block coefficient: 0.505
   Length to Beam Ratio: 6.51 : 1
   'Natural speed' for length: 21.79 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 54
   Bow angle (Positive = bow angles forward): -5.00 degrees
   Stern overhang: 2.00 ft / 0.61 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      22.00 ft / 6.71 m
      - Forecastle (13 %):   22.00 ft / 6.71 m (14.00 ft / 4.27 m aft of break)
      - Mid (50 %):      14.00 ft / 4.27 m (22.00 ft / 6.71 m aft of break)
      - Quarterdeck (13 %):   14.00 ft / 4.27 m (22.00 ft / 6.71 m before break)
      - Stern:      14.00 ft / 4.27 m
      - Average freeboard:   18.00 ft / 5.49 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 113.2 %
      - Above water (accommodation/working, high = better): 116.4 %
   Waterplane Area: 20,024 Square feet or 1,860 Square metres
   Displacement factor (Displacement / loading): 104 %
   Structure weight / hull surface area: 135 lbs/sq ft or 661 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 1.85
      - 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
"He either fears his fate too much,
Or his desserts are small,
Who dares not put it to the touch,
To win or lose it all!"

James Graham, 5th Earl of Montrose
1612 to 1650
Royalist General during the English Civil War

Borys

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

Tanthalas

managed to get her to behave with 10" guns finaly.
"He either fears his fate too much,
Or his desserts are small,
Who dares not put it to the touch,
To win or lose it all!"

James Graham, 5th Earl of Montrose
1612 to 1650
Royalist General during the English Civil War

Borys

Ahoj!
The British had bases everywhere. The Germans were to make 2-3 day sorties into the North Sea.

IIRC the 1937 KGV had 110 shells.
This is the number I customarily use.
I suppose I would plan for 110-130 for 9-10 inch guns.
6 inch guns on cruisers get 150-200.

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

swamphen

I only reduce the shell number from the SS default of 150 if it becomes absolutely necessary. Better to carry extra shells around, then to run out and not be able to resupply (or worse).

And this allows magazine space for the "grunjunge" shells, too. :evil:

P3D

Italy is completely lacking light cruisers. It has only thos odd 8" equipped ACs/PCs as i see it.
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

Carthaginian

Well, with the short distances Italy has to send ships, I don't think that light cruisers would be a necessity. A destroyer can hop from colony to colony without refueling at an economical cruise setting, and get most anywhere in the Med it needs to go running balls out. With just a few colliers added to the fleet, Italy would be able to get by completely on TB's, destroyers, battleships and a few good armored cruisers for station ships.

The 8" cruisers work in their intended role it seems, able to make anything but a BB think twice about engaging. Those and a few destroyers and TB's should be able to defend a colony adequately. After all, they only need to hold out till the cavalry gets there.
So 'ere's to you, Fuzzy-Wuzzy, at your 'ome in old Baghdad;
You're a pore benighted 'eathen but a first-class fightin' man;
We gives you your certificate, an' if you want it signed
We'll come an' 'ave a romp with you whenever you're inclined.

Borys

Quote from: P³D on September 06, 2007, 06:01:35 PM
Italy is completely lacking light cruisers. It has only thos odd 8" equipped ACs/PCs as i see it.

Like the USN beforre the Omaha class came along?
Must be an Italian speciality ....
:)

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

Tanthalas

Ya i have 8" cruisers as basicly station Ships.  They will have destroyers deployed with them, and then i will have the home Fleet to haul ass to wherever and pound peoples faces in.

Now my next generation of fleet ships will have a Medium Cruiser as im calling it to support my BCs.  Ill post the destroyers as soon as i manage to make a ship i actualy like though.
"He either fears his fate too much,
Or his desserts are small,
Who dares not put it to the touch,
To win or lose it all!"

James Graham, 5th Earl of Montrose
1612 to 1650
Royalist General during the English Civil War

P3D

Quote from: Borys on September 06, 2007, 10:24:42 PM
Quote from: P³D on September 06, 2007, 06:01:35 PM
Italy is completely lacking light cruisers. It has only thos odd 8" equipped ACs/PCs as i see it.
Like the USN beforre the Omaha class came along?
Must be an Italian speciality ....
:)
Borys
At least those ACs did have some armament with a bore between 3" and 8".
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