Rohan ships 1916, 1917, & Beyond

[ctwaterman]

For the 44K ton ship an inclined Belt means you need more of it to cover the same space.  I think the Inclined Belt needs to be taller otherwise you are giving up some of your protection.

Otherwise its an Iowa with bigger guns and less speed.

[Nobody]

on the 44k tonner - the range seems very high - 10,000 tons of fuel ?!

I admit it sounds a lot, but compared to a OTL ship (Bismarck, ~41250 (metric) tons light) which carried some 8000 tons and wasn't exactly known for her range, it sounds reasonable - for a long range vessel.

[Tanthalas]

as always opinions welcome, but remember its intended to serve with the battle line, for referance here is Berold.  Odds of this class entering production are oh about 50/50 at this point.

Erol, Rohan Battleship laid down 1919 (Engine 1920)

Displacement:
   27,000 t light; 28,522 t standard; 29,559 t normal; 30,389 t full load

Dimensions: Length overall / water x beam x draught
   618.00 ft / 618.00 ft x 103.00 ft x 30.00 ft (normal load)
   188.37 m / 188.37 m x 31.39 m  x 9.14 m

Armament:
      8 - 15.50" / 394 mm guns (4x2 guns), 1,951.00lbs / 884.96kg shells, 1919 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread, 1 raised mount - superfiring
      16 - 4.50" / 114 mm guns (8x2 guns), 45.56lbs / 20.67kg shells, 1919 Model
     Quick firing guns in deck mounts with hoists
     on side, all amidships, 4 raised mounts - superfiring
      4 - 4.50" / 114 mm guns (2x2 guns), 45.56lbs / 20.67kg shells, 1919 Model
     Quick firing guns in deck mounts with hoists
     on centreline ends, evenly spread, all raised mounts
      8 - 1.50" / 38.1 mm guns (4x2 guns), 1.69lbs / 0.77kg shells, 1919 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread
   Weight of broadside 16,533 lbs / 7,499 kg
   Shells per gun, main battery: 100

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12.0" / 305 mm   383.00 ft / 116.74 m   17.60 ft / 5.36 m
   Ends:   4.00" / 102 mm   235.00 ft / 71.63 m   14.00 ft / 4.27 m
     Main Belt covers 95 % of normal length

   - Torpedo Bulkhead:
      1.50" / 38 mm   383.00 ft / 116.74 m   30.00 ft / 9.14 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   14.0" / 356 mm   6.00" / 152 mm      12.0" / 305 mm
   2nd:   2.00" / 51 mm   1.00" / 25 mm      1.00" / 25 mm
   3rd:   2.00" / 51 mm   1.00" / 25 mm      1.00" / 25 mm
   4th:   1.00" / 25 mm   1.00" / 25 mm            -

   - Armour deck: 4.00" / 102 mm, Conning tower: 12.00" / 305 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 4 shafts, 40,000 shp / 29,840 Kw = 21.92 kts
   Range 5,750nm at 12.00 kts
   Bunker at max displacement = 1,867 tons

Complement:
   1,126 - 1,465

Cost:
   £6.110 million / $24.439 million

Distribution of weights at normal displacement:
   Armament: 1,978 tons, 6.7 %
   Armour: 10,858 tons, 36.7 %
      - Belts: 4,078 tons, 13.8 %
      - Torpedo bulkhead: 638 tons, 2.2 %
      - Armament: 2,633 tons, 8.9 %
      - Armour Deck: 3,262 tons, 11.0 %
      - Conning Tower: 247 tons, 0.8 %
   Machinery: 1,387 tons, 4.7 %
   Hull, fittings & equipment: 12,302 tons, 41.6 %
   Fuel, ammunition & stores: 2,559 tons, 8.7 %
   Miscellaneous weights: 476 tons, 1.6 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     43,584 lbs / 19,769 Kg = 23.4 x 15.5 " / 394 mm shells or 7.4 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 6.3 ft / 1.9 m
   Roll period: 17.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.75
   Seaboat quality  (Average = 1.00): 1.52

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.542
   Length to Beam Ratio: 6.00 : 1
   'Natural speed' for length: 24.86 kts
   Power going to wave formation at top speed: 44 %
   Trim (Max stability = 0, Max steadiness = 100): 46
   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:      28.00 ft / 8.53 m
      - Forecastle (20 %):   23.00 ft / 7.01 m
      - Mid (70 %):      23.00 ft / 7.01 m (15.00 ft / 4.57 m aft of break)
      - Quarterdeck (18 %):   15.00 ft / 4.57 m
      - Stern:      15.00 ft / 4.57 m
      - Average freeboard:   21.00 ft / 6.40 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 84.0 %
      - Above water (accommodation/working, high = better): 160.0 %
   Waterplane Area: 44,082 Square feet or 4,095 Square metres
   Displacement factor (Displacement / loading): 99 %
   Structure weight / hull surface area: 203 lbs/sq ft or 989 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 1.78
      - 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
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather


The Misc. weight would be similar to Asfaloth, the main belt is inclined 10 Deg, and made of improved KC armor

[TexanCowboy]

In that case, let me recommend not to build these, and build more Asfaloth's. xD

[Tanthalas]

In that case, let me recommend not to build these, and build more Asfaloth's. xD

Cant Asfaloth Production is Caped at 4 by the RNT (mostly because the last 2 should I build them will lay down in H218 during the RNT negotiations and they are over 35K tons)

[TexanCowboy]

A 27 knot Asfaloth?

[Tanthalas]

A 27 knot Asfaloth?

You may not know this (since you wernt around for most of the Nverse) but basicly on BBs Rohan has followed US theory.  the Preceading BBs are the Standards (with 4 8 gun ships instead of Wyoming, Arkansas, Texas, and New York) then you have the 2 10 gun ships followed by the 12 gun ships (technicly I should be building a few more 12X14" ships) these would be the Colorado equivilant for the fleet.  on another note I could swap the 8X15.5 for 12X14" and build them as standards.

[TexanCowboy]

Err....in the Pacific, Speed is good!

[Tanthalas]

Err....in the Pacific, Speed is good!

Generaly a true statement, however realy where do I have to go? Rohan is the US at this point OTL without having to defend 2 Oceans.  Anyone that wants to fight me has to come into my parlor.  Asfaloth and her Sisters are the Lexington equivilants for the fleet and as such will always form a seperate fast wing (or operate with the scouting forces).  Any ship that cant make 28 knots will be a liability in that aspect.  The Line however will hang aorund 22 knots allowing all of the 14" BBs to operate with it (ala the plan of the US Standards)

[The Rock Doctor]

I'd call that battleship good money for value, really. 

[ctwaterman]

I agree excellent design for the Money good solid dependible and looks remarkebly like the BB Design Im working on which is a 12 Gunned 22 Knot BB with almost exactly the same armor lay out.  All at around 28K tons.

But then I am also adopting the US strategy of a 22knt Battle Line.  For Operations in the Med and Indian Oceans.  I do need some faster Scouts and Armored Cruisers for long range trade protection however :'(

[Jefgte]

Exellent BB

IMO, 12" is short for the belt.
I increase the thickness of the belt & decrease the height to have the same weight.

Jef  ;)

[mentat]

'
Agree with Jefgte - a nice solid 'R class style BB ;D - but MB too thin vs. 15" gunfire at normal battle ranges

- as well as decreasing MB height - the EB could also be a tad thinner/narrower - I think a 340/350mm MB should be the target

[Tanthalas]

12" base +1.2" (10%) for the incline + 1.2" (10%) for the Improved KC armor = 14.4" equivilant.  the Oddball height on the belt is a base height of 16' but inclined 10 deg so I added 10% to the height to ensure it coverd the full 16' aka 2 decks.

[ctwaterman]

People keep forgetting that when you dont have an upper belt and you are using an inclined belt you have to make the Main Belt higher to get full coverage.  I think Guinness pointed that out to me along with the fact that on a 28 knot ship you didnt want wave action leaving hits that would go under the belt below the water line.....  :o

That and the Increased efficency of an Incline along with the New Improved Krupp Armor means we can skimp a little on weight and still get the same protection.  That and Typical Battle Ranges have moved out to around 12K Yards.

Of Course they are right once they close to under 12K yards with a 15" or 16" gun well 12" or Armor wont help but then again I dont think 16" or armor would help to much either.