WesWorld

Type 1 A-1, Chosen Battleship laid down 1933

Displacement:
34,206 t light; 35,933 t standard; 37,681 t normal; 39,080 t full load

Dimensions: Length overall / water x beam x draught
779.00 ft / 779.00 ft x 98.00 ft (Bulges 103.90 ft) x 31.95 ft (normal load)
237.44 m / 237.44 m x 29.87 m (Bulges 31.67 m) x 9.74 m

Armament:
8 - 14.00" / 356 mm guns (4x2 guns), 1,372.00lbs / 622.33kg shells, 1933 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
16 - 8.00" / 203 mm guns (8x2 guns), 256.00lbs / 116.12kg shells, 1933 Model
Breech loading guns in turrets (on barbettes)
on side, all amidships, 4 raised mounts - superfiring
20 - 1.57" / 40.0 mm guns (16 mounts), 1.95lbs / 0.88kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
51 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
14 - 3.00" / 76.2 mm guns (7x2 guns), 13.50lbs / 6.12kg shells, 1933 Model
Dual purpose guns in deck mounts
on side, evenly spread
Weight of broadside 15,312 lbs / 6,946 kg
Shells per gun, main battery: 110
8 - 21.0" / 533.4 mm above water torpedoes, 4 - 21.0" / 533.4 mm submerged torpedo tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 16.0" / 406 mm 406.33 ft / 123.85 m 11.88 ft / 3.62 m
Ends: Unarmoured
Main Belt covers 80 % of normal length

- Torpedo Bulkhead and Bulges:
1.25" / 32 mm 406.33 ft / 123.85 m 28.14 ft / 8.58 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 16.0" / 406 mm 7.00" / 178 mm 13.0" / 330 mm
2nd: 8.75" / 222 mm 3.75" / 95 mm 1.55" / 39 mm

- Armour deck: 4.50" / 114 mm, Conning tower: 25.00" / 635 mm

Machinery:
Oil fired boilers, steam turbines plus batteries,
Electric cruising motors plus geared drives, 5 shafts, 86,990 shp / 64,895 Kw = 27.50 kts
Range 10,000nm at 12.00 kts
Bunker at max displacement = 3,146 tons

Complement:
1,351 - 1,757

Cost:
£14.938 million / $59.751 million

Distribution of weights at normal displacement:
Armament: 1,914 tons, 5.1 %
Armour: 13,111 tons, 34.8 %
- Belts: 3,432 tons, 9.1 %
- Torpedo bulkhead: 529 tons, 1.4 %
- Armament: 4,100 tons, 10.9 %
- Armour Deck: 4,445 tons, 11.8 %
- Conning Tower: 605 tons, 1.6 %
Machinery: 2,535 tons, 6.7 %
Hull, fittings & equipment: 16,547 tons, 43.9 %
Fuel, ammunition & stores: 3,475 tons, 9.2 %
Miscellaneous weights: 100 tons, 0.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
63,778 lbs / 28,929 Kg = 46.5 x 14.0 " / 356 mm shells or 9.4 torpedoes
Stability (Unstable if below 1.00): 1.00
Metacentric height 4.8 ft / 1.5 m
Roll period: 19.8 seconds
Steadiness - As gun platform (Average = 50 %): 76 %
- Recoil effect (Restricted arc if above 1.00): 0.98
Seaboat quality (Average = 1.00): 1.58

Hull form characteristics:
Hull has low forecastle, rise forward of midbreak, low quarterdeck
and transom stern
Block coefficient: 0.510
Length to Beam Ratio: 7.50 : 1
'Natural speed' for length: 32.58 kts
Power going to wave formation at top speed: 46 %
Trim (Max stability = 0, Max steadiness = 100): 48
Bow angle (Positive = bow angles forward): -52.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 34.14 ft / 10.41 m
- Forecastle (24 %): 23.18 ft / 7.07 m (25.18 ft / 7.67 m aft of break)
- Mid (45 %): 31.18 ft / 9.50 m (29.18 ft / 8.89 m aft of break)
- Quarterdeck (24 %): 23.18 ft / 7.07 m (25.18 ft / 7.67 m before break)
- Stern: 23.18 ft / 7.07 m
- Average freeboard: 26.53 ft / 8.09 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 78.5 %
- Above water (accommodation/working, high = better): 192.7 %
Waterplane Area: 53,393 Square feet or 4,960 Square metres
Displacement factor (Displacement / loading): 112 %
Structure weight / hull surface area: 208 lbs/sq ft or 1,015 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.59
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
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

Type 1 Battleship
Mk 1. Gen 1

Armament:

x8 G02 14"/56
G02E 14"/56


Caliber = 14.0 inch (35.6 cm)
Shell weight = 1483 lbs (673 kg)
Muzzle velocity = 2978 fps (908 m/s)

Relative ballistic performance: 1.10

Muzzle energy = 277.3 megajoules = 102177.2 foot-tons

Relative muzzle energy: 1.16

Barrel length: 56 calibers


Elevation Range Time Velocity Fall Angle

2.5 deg 7100 yards 7.9 sec 2504 fps 2.8 deg
5.0 deg 12900 yards 15.3 sec 2190 fps 6.2 deg
7.5 deg 17700 yards 22.3 sec 1975 fps 9.8 deg
10.0 deg 21800 yards 29.0 sec 1824 fps 13.8 deg
12.5 deg 25400 yards 35.5 sec 1719 fps 17.9 deg
15.0 deg 28700 yards 41.7 sec 1649 fps 21.9 deg
20.0 deg 34400 yards 53.7 sec 1577 fps 29.6 deg
25.0 deg 39100 yards 65.1 sec 1566 fps 36.5 deg
30.0 deg 43100 yards 76.0 sec 1591 fps 42.4 deg
35.0 deg 46400 yards 86.4 sec 1635 fps 47.5 deg
40.0 deg 48700 yards 96.4 sec 1688 fps 51.9 deg
45.0 deg 50000 yards 105.9 sec 1745 fps 55.9 deg
50.0 deg 50000 yards 114.7 sec 1800 fps 59.5 deg


Armor Penetration - Belt Inclined 19 degrees

(Relative armor quality, 1.00)

Maximum penetration: 29.30 inches


Elevation Range Belt Deck

1.1 deg 3300 yards 26 in
1.9 deg 5600 yards 24 in
2.9 deg 8000 yards 22 in
3.5 deg 9400 yards ... 1 in
3.9 deg 10500 yards 20 in
5.3 deg 13400 yards 18 in
6.5 deg 15900 yards ... 2 in
6.9 deg 16500 yards 16 in
8.8 deg 20000 yards 14 in
10.0 deg 21800 yards ... 3 in
11.4 deg 23900 yards 12 in
14.7 deg 28400 yards ... 4 in
14.8 deg 28400 yards 10 in
19.1 deg 33400 yards ... 5 in
19.5 deg 33800 yards 8 in
22.5 deg 36900 yards ... 6 in
26.1 deg 40100 yards ... 7 in
26.1 deg 40100 yards 6 in
29.7 deg 42900 yards ... 8 in
33.4 deg 45400 yards ... 9 in
37.2 deg 47500 yards ... 10 in
37.4 deg 47600 yards 4 in
41.0 deg 49000 yards ... 11 in
45.0 deg 50000 yards ... 12 in
49.2 deg 50100 yards ... 13 in


Maximum range = 50100 yards at 47.6 deg elevation

x16 G06 8"/60


Caliber = 8.0 inch (20.3 cm)
Shell weight = 338 lbs (153 kg)
Muzzle velocity = 2821 fps (860 m/s)

Relative ballistic performance: 1.10

Muzzle energy = 56.721 megajoules = 20901.7 foot-tons

Relative muzzle energy: 1.28

Barrel length: 60 calibers


Elevation Range Time Velocity Fall Angle

2.5 deg 6200 yards 7.4 sec 2273 fps 2.9 deg
5.0 deg 11000 yards 14.3 sec 1936 fps 6.5 deg
7.5 deg 14800 yards 20.7 sec 1718 fps 10.4 deg
10.0 deg 18100 yards 26.8 sec 1570 fps 14.7 deg
12.5 deg 20900 yards 32.7 sec 1468 fps 19.1 deg
15.0 deg 23400 yards 38.3 sec 1401 fps 23.5 deg
20.0 deg 27600 yards 49.0 sec 1335 fps 31.8 deg
25.0 deg 31000 yards 59.1 sec 1323 fps 39.0 deg
30.0 deg 33800 yards 68.7 sec 1343 fps 45.2 deg
35.0 deg 36000 yards 77.9 sec 1380 fps 50.4 deg
40.0 deg 37500 yards 86.7 sec 1426 fps 54.9 deg
45.0 deg 38300 yards 95.0 sec 1473 fps 58.8 deg
50.0 deg 38100 yards 102.8 sec 1521 fps 62.3 deg


Armor Penetration - Belt Inclined 19 degrees

(Relative armor quality, 1.00)

Maximum penetration: 17.80 inches


Elevation Range Belt Deck

1.8 deg 4800 yards 14 in
3.3 deg 7800 yards 12 in
5.1 deg 11200 yards 10 in
5.6 deg 12000 yards ... 1 in
7.9 deg 15400 yards 8 in
12.1 deg 20400 yards 6 in
12.4 deg 20700 yards ... 2 in
19.2 deg 27000 yards 4 in
20.0 deg 27600 yards ... 3 in
26.5 deg 31900 yards ... 4 in
33.4 deg 35400 yards ... 5 in
34.7 deg 35900 yards 2 in
40.8 deg 37700 yards ... 6 in
48.8 deg 38200 yards ... 7 in


Maximum range = 38300 yards at 46.8 deg elevation

I'd go with a more usual mid-range calibre instead of the 8", though - against DDs and TBs the rate of fire will be too slow.

(Chosen will probably be using Japanese guns, too.)

Quoted

Main Belt covers 84 % of normal length

I think this may make for a very cramped ship.

Have you tried drawing it?

Cheers,

Up until now, Chosen has been taking on Japanese 'gifts'. I'd think they'd be starting their indigenous shipbuilding capacity with a smaller, less ambitious project.

There's also the political risks to consider; Chosen aquiring more capital ships is bound to provoke an adverse reaction from several world powers.

Also IIRC Chosen is supposed to give part of their production to COSINE. A ship of this size pretty much will force them to break their arrangements with COSINE and put a strain to their construction for the for the next couple of years. A strain in the Japanese-Chosen relationship perhaps?

She might need to get fixed now and again.

Getting a drydock big enough for her will tie up your factories for quite a while.

Actually the japanese offered to build it in their yards.

For some fee's of course.

:p

Relationship with Japan should improve.

Hopefully this will provide me with an interesting story element for Queen Purlian, now my alter ego.

lol.

Quoted

Originally posted by Salaam86
Actually the japanese offered to build it in their yards.

For some fee's of course.

:p

Relationship with Japan should improve.

Hopefully this will provide me with an interesting story element for Queen Purlian, now my alter ego.

lol.

You could be better served fi you get your Japanese patrons to improve your infrastucture akin to the Iberian-peruvian relationship.

Also what about the Cosine payments? Are they are being waived? Also building that ship could take close to three years. Very powerful one I have to admit but I can see why the Japanese are building it, a nice addition to any joint Task Force.

As with all things surrounding Chosen, there will be political fallout...it has become expected.

Interesting vessel, though I seriously doubt the Japanese are going to take a negative bow angle into consideration when they are trying to improve speed with clipper bows at present. I also image this being a Tumblehome hull. That is unless Chosen's engineers can convince the Admirality that such a vessel has merit. Also seems to have a rather, odd freeboard arrangement. I might be wrong on the last one, it just looks odd to me.

The comment on your armor length might be valid...if I read this correctly, your turrets aren't covered by the main belt which means all you have to stop a shell is your 10" barbette armor...and if it goes below where that is....your ship will likely suffer a rather large explosion when that turret's magazine explodes.

If you are using the weapons you posted before, these are lighter than average shells, correct? If I read the Big Gun report right and the SS report right, the shell weights don't match.

The main concern I'd have with this ship is the lack of heavy AA: the 8" guns are not going to be suitable (too low a rate of fire, especially at higher elevations) and the 40mm are too small.

5 shafts? Given the power requirements, I'd think 4 would be plenty.

Quoted

Originally posted by Ithekro
As with all things surrounding Chosen, there will be political fallout...it has become expected.

Interesting vessel, though I seriously doubt the Japanese are going to take a negative bow angle into consideration when they are trying to improve speed with clipper bows at present. I also image this being a Tumblehome hull. That is unless Chosen's engineers can convince the Admirality that such a vessel has merit. Also seems to have a rather, odd freeboard arrangement. I might be wrong on the last one, it just looks odd to me.

The comment on your armor length might be valid...if I read this correctly, your turrets aren't covered by the main belt which means all you have to stop a shell is your 10" barbette armor...and if it goes below where that is....your ship will likely suffer a rather large explosion when that turret's magazine explodes.

If you are using the weapons you posted before, these are lighter than average shells, correct? If I read the Big Gun report right and the SS report right, the shell weights don't match.

Springsharp calculates magazine coverage and machinery coverage. I lowered the speed. Which means the belts dont have to cover as much. So 84% should be correct.

However if I correct it by adjusting default minimum belt length to cover magazines and machinery, you'd get the exact same specs, except then it would say 100%. But notice it covers the magazines and such at 84%. Which is fine by my book.

Well I've roughed your ship using what I can make out of the freeboard, the actual belt size, and rough approximations for turrets (these are actually suppose to be 14"/42 cal cannon in twin mounts).



The belt might work, but I can't say for sure.

I'll let some with more engineering knowledge pick appart my drawing (verses your design), and then see what they say about the design in general.

A common fault is that you can't fit all the things that SS lets you put in a hull - unless you make the belt longer.

Cheers,

The wavy deckline is inline with Japanese practices.

I wont repeat whats been said, but one thing I will say is replace the 20mm guns with 25mm guns since those are the ones used by Chosen.

I've added some approximations of 8 inch twin turets to the drawing. I think I see what he's getting at...there isn't room for most of the remaining lgihter guns, and torpdoes, and boats, and several other items within the area covered by the belt. All the magazines for all the guns and all the engine spaces have to fit in the gold area's length to be safe I'm assuming...or relatively safe behind 16 inches of armor.

Editted later:

You know I just noticed something...this ship has no weapons that are superimposed listed. I drew them on the assumption that that was standard, but that's not what the SS design says.



Definate problem.

problem fixed.

Now it's better than ever.

It´s........unique.....

Why am I not surprised to a see a new player starting with the big fish?!

Btw, didn´t we have this "tumblehome"-discussion just a few weeks ago?

Anyway, if one is willing to accept all the drawbacks and a sudden loss of a major warship it´s an interesting technical option.

Quoted

Why am I not surprised to a see a new player starting with the big fish?!

I know nothing!
(and don't forget that Chosen already has the Dairen class battlecruisers. this one is only slightly bigger)

Quoted

Btw, didn´t we have this "tumblehome"-discussion just a few weeks ago?

I thought we discussed that last year, not a few weeks ago.

Quoted

Anyway, if one is willing to accept all the drawbacks and a sudden loss of a major warship it´s an interesting technical option.

I assume that the RSAN can't wait to move into the region and test out their weapons.

Can someone please explain that disgusting bow, she's not gonna be very good at pushing through Heavy Seas.

Somehow I don't think making it slower with an even shorter belt is going to help much. You still need to fit all your lighter guns on the hull with there magazines in the center still.

The SS for the bow says -52 degrees so I guessed at the angle and place a similar ram looking bow on this ship. I notice again that SS doesn't seem to be able to handle negative bow angles as it still says the overall is the same as the waterline.

I think the look she is going for is something like this:

But is could still be for something like this:


or this