1920s Costal battleship design challenge.

[Krakatoa]

Well in all honesty I don't think the Timor would make 12,500 tons standard with that much on board. I think a little bit of German ingenuity in counting the tons may have come into play. Somewhere around 14,500-15,000 standard would be closer to realistic. I have not used Springsharp since I entered the details for Hood and Springsharp said it was great....

JSB: the increase from 13.5 to 16 degrees was achieved by allowing the pivot to go past what was previously deemed acceptable. The lowering of the floor was only done on those ships that went through the rebuilding work in the late 30's and Vanguard. All the R's Malaya and Barham went through WW2 with the lower elevation.

Navweaps has an interesting read on the subject.
http://www.navweaps.com/Weapons/WNBR_15-42_mk1.htm

BTW is that coefficient of .421 good or bad?
Thanks
Nige

[JSB]

1) Somewhere around 14,500-15,000 standard would be closer to realistic.

2) I have not used Springsharp since I entered the details for Hood and Springsharp said it was great....

3) JSB: the increase from 13.5 to 16 degrees was achieved by allowing the pivot to go past what was previously deemed acceptable. The lowering of the floor was only done on those ships that went through the rebuilding work in the late 30's and Vanguard.

4) All the R's Malaya and Barham went through WW2 with the lower elevation.

5 )BTW is that coefficient of .421 good or bad?

In reverse order.
5 - not sure but I think its a bit low ? (I'm really no expert and have no idea can anybody help ?)
4- and they where not very useful (did they ever really fight anything) ?
3- not sure RN/RM turrets are the same so no idea if you can or cant ? (or if it involves so much work you may as well start again ?)
2- ern I don't understand ? (spring sharp will never be good for outliers and Hood is very much a to fast to big ships for 1918)
1- I think you are supposed to pretend its 10,00t not sure if 15kt will make be accepted but up to the judges.

Thanks JSB

[Krakatoa]

Howdy JSB,

"4- and they where not very useful (did they ever really fight anything) ? "

Barham was at Cape Matapan and helped sink the Italian cruisers. One of the R's was on convoy escort duty when Scharnhorst and Gneisenau intercepted the convoy. The sight of the R was enough for S & G not to attack fearing unrepairable damage in mid-Atlantic (I think the same thing happened with Malaya as well). The R's were at the Battle of Mers-el-kebir in 1940. The biggest problem with the R's were that they were just too slow for modern warfare. They were great as escorts and fire support ships.

Springsharp is not to be relied on.

Lowering the turret floor can be done with any turret that is sited on a barbette. The turret floor that conforms with the barbette ring is cut out and lowered 2-3 feet which allows the guns to elevate further. The new floor rotates within the barbette ring. The Germans did not have any WW1 ships left of any value that would have benefited from this process.

[JSB]

Howdy JSB,

"4- and they where not very useful (did they ever really fight anything) ? "

Barham was at Cape Matapan and helped sink the Italian cruisers. One of the R's was on convoy escort duty when Scharnhorst and Gneisenau intercepted the convoy. The sight of the R was enough for S & G not to attack fearing unrepairable damage in mid-Atlantic (I think the same thing happened with Malaya as well). The R's were at the Battle of Mers-el-kebir in 1940. The biggest problem with the R's were that they were just too slow for modern warfare. They were great as escorts and fire support ships.

But Matapan was at night and very close,

the British battleships Barham, Valiant and Warspite were able to close to 3,800 yards (3,500 m) unnoticed by the Italian ships—point blank range for battleship guns—from where they opened fire

None of the above suggests that unmodernised battleships ever fought at a range where the turrets would make a difference ?
(and could S&G tell what BB they might be running into ? i.e.. they don't know that the mast in front cant shoot at 30 deg until it happens or not).

I don't think the above actions really tell us if a 20deg ship could fight in a day battle with new ships.(and in 1920s radar/codebreaking cant be relied on)

JSB

[JSB]

First information of the DEI defence ship laid down in 29, Believed to be build with German technical assistance.


JSB

[DG_Alpha]

Looks nice, but I'm not so sure about the WW1-era flaks...

[eltf177]

Looks nice, but I'm not so sure about the WW1-era flaks...

For 1929 I don't think they're too far out of date. And you might figure navy tries to save money by reusing old material. And if these are going to the NEI then why bother with new expensive AA, the Japanese are no real threat from the air...

[KHT]

Well, it's hard to comment on the design as off now, but unless you're going either paper-clad or below 20 knots, I'm sceptic regarding the displacement. But, since I don't know, I can only theorize.
I think you have very big ammunition stores at the moment. I'd go for 100-120 SPG for the main artillery, and 150-250 SPG for the 6" guns.

[Karle94]

Perhaps you should give us the armor specs, that would help us with guessing under or below 10000 tons.

[acelanceloet]

let me put it different. then go detailed. the sizes, as given on the image, result (with an displacement of 10000 tons) in an Cb of 0,38. battleships of the time have an Cb of about 0,58. seeing that low draft ships are often a bit 'tubbier', I would say this ship is about 1,5 times as big as would be required to get into the 10000 tons limit.