The Socialist Republic of Sieran

Good work, very interesting thread!

I'd say it sounds fairly good.
My prefered destroyer AA suit, depending a bit on size of the destroyer is 4-12 40mm/60(56) and completing number of smaller guns(25 or 13,2 mm). My Wapen class for example is armed with(if I remember correctly) eight 40mm/60 guns in four twins, and 9 single 25mm guns.
Then again, this depends on when they enter service. I don't know when the RSN starts using the bofors 40mm guns, but I assume it isn't until 1941-1942.

The SRN used imported British 2-pounder Pom Poms to arm many of their ships until the war in Europe began in 1939 which cut off the supply route. The SRN had to look elsewhere for an effective heavy AA weapon and the Bofors 40mm was seen as a good candidate being capable of high rates of fire and perhaps more importantly, was available. The first Sieranian ships to be equipped with the 40mm guns started to appear around 1940 or so as trials vessels though the actual gun mount didn't become common on SRN vessels until late 1941 when the last of the imported Pom Poms had been mounted.

The only vessels that differed from this were the C3s as no 2-pounders were available to import from the UK at the time of their fitting out due to the Royal Navies own expansion in the face of the growing tensions in Europe.

With these large destroyers, I've got a position forward of the bridge on the deckhouse before the forward turret, an elevated sponson amidships between the torpedo launchers and on the deckhouse aft before the twin aft turrets for placing my AA batteries.

_________________
"The first rule is not to lose; The second rule is not to forget the first rule"

Ok, sounds like a good arrangement.
Will you do a top view for this one as well?

I plan on giving it a shot yes. Not sure how I'll go as destroyers have a lot on them and there aren't many shipbucket scale drawings already done of WW2 era vessels as a basis. The torpedo launchers are the trickiest part in my opinion as well as the mast and depth charge racks aft.

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"The first rule is not to lose; The second rule is not to forget the first rule"

Tooting my own horn a bit

, I made a destroyer from the mid/late 1930s for my Erikrike AU which you could look on:
[ img ]

The torps were a bit messy, yes, but figuring out how to do the mast was a bit more difficult. But then I realized you hardly see the mast on top view drawings, since they're always rather thin. So you could deffinetly represent it in a similar way that I've done.
Just give me a holler if you need help with the top views!

That looks about right yeah. I've found some good ref images of two ship classes mine is similar to (the 1936A destroyer and the Le Hardi class) so their top views should help getting the appearance right.

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"The first rule is not to lose; The second rule is not to forget the first rule"

Lovely revamp of the Lazerev Denodon! Looking forward to those destroyers.

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Worklist

"If people never did silly things nothing intelligent would ever get done." ~Ludwig Wittgenstein

Thanks Raxar.

Here's a preliminery springsharp on the destroyers as I have drawn them in the WIP so far. Looking at it I might need to alter a few things. Seakeeping isn't great but it seems better than standard. The range however is abysmal though I don't particularly fancy dropping their speeds as they need an edge over the cruisers to be effective.

Code: Select all

Kop'e Class, Socialist Republic of Sieran Large Destroyer laid down 1936

Displacement:
	2,276 t light; 2,355 t standard; 2,522 t normal; 2,655 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(409.91 ft / 400.26 ft) x 37.57 ft x (13.78 / 14.27 ft)
	(124.94 m / 122.00 m) x 11.45 m  x (4.20 / 4.35 m)

Armament:
      6 - 5.12" / 130 mm 40.0 cal guns - 64.24lbs / 29.14kg shells, 110 per gun
	  Dual purpose guns in deck and hoist mounts, 1936 Model
	  3 x 2-gun mounts on centreline ends, majority aft
		1 raised mount aft - superfiring
      8 - 1.57" / 40.0 mm 60.0 cal guns - 2.14lbs / 0.97kg shells, 500 per gun
	  Anti-air guns in deck mounts, 1936 Model
	  2 x Quad mounts on centreline, evenly spread
		2 raised mounts
      4 - 0.79" / 20.0 mm 45.0 cal guns - 0.24lbs / 0.11kg shells, 1,000 per gun
	  Anti-air guns in deck mounts, 1936 Model
	  2 x Single mounts on sides, forward deck centre
		2 raised mounts
      Weight of broadside 404 lbs / 183 kg
      Main Torpedoes
      6 - 21.0" / 533 mm, 20.00 ft / 6.10 m torpedoes - 1.367 t each, 8.201 t total
	In 2 sets of deck mounted centre rotating tubes

Armour:
   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	0.39" / 10 mm	0.39" / 10 mm		      -
	2nd:	0.39" / 10 mm	      -			      -

Machinery:
	Oil fired boilers, steam turbines, 
	Geared drive, 2 shafts, 67,176 shp / 50,113 Kw = 36.00 kts
	Range 3,000nm at 15.00 kts
	Bunker at max displacement = 299 tons

Complement:
	177 - 231

Cost:
	£1.683 million / $6.733 million

Distribution of weights at normal displacement:
	Armament: 120 tons, 4.7 %
	   - Guns: 103 tons, 4.1 %
	   - Weapons: 16 tons, 0.7 %
	Armour: 10 tons, 0.4 %
	   - Armament: 10 tons, 0.4 %
	Machinery: 1,467 tons, 58.2 %
	Hull, fittings & equipment: 604 tons, 24.0 %
	Fuel, ammunition & stores: 246 tons, 9.7 %
	Miscellaneous weights: 75 tons, 3.0 %
	   - On freeboard deck: 75 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  422 lbs / 191 Kg = 6.3 x 5.1 " / 130 mm shells or 0.3 torpedoes
	Stability (Unstable if below 1.00): 1.06
	Metacentric height 1.3 ft / 0.4 m
	Roll period: 13.9 seconds
	Steadiness	- As gun platform (Average = 50 %): 67 %
			- Recoil effect (Restricted arc if above 1.00): 0.61
	Seaboat quality  (Average = 1.00): 0.80

Hull form characteristics:
	Hull has rise forward of midbreak,
	  a normal bow and a round stern
	Block coefficient (normal/deep): 0.426 / 0.433
	Length to Beam Ratio: 10.66 : 1
	'Natural speed' for length: 20.01 kts
	Power going to wave formation at top speed: 68 %
	Trim (Max stability = 0, Max steadiness = 100): 83
	Bow angle (Positive = bow angles forward): 14.00 degrees
	Stern overhang: 4.00 ft / 1.22 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	20.00 %,  22.67 ft / 6.91 m,  18.67 ft / 5.69 m
	   - Forward deck:	20.00 %,  18.67 ft / 5.69 m,  18.01 ft / 5.49 m
	   - Aft deck:	45.00 %,  12.27 ft / 3.74 m,  12.27 ft / 3.74 m
	   - Quarter deck:	15.00 %,  12.27 ft / 3.74 m,  12.27 ft / 3.74 m
	   - Average freeboard:		15.08 ft / 4.60 m

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 200.0 %
		- Above water (accommodation/working, high = better): 119.3 %
	Waterplane Area: 9,414 Square feet or 875 Square metres
	Displacement factor (Displacement / loading): 60 %
	Structure weight / hull surface area: 38 lbs/sq ft or 183 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.47
		- Longitudinal: 1.30
		- Overall: 0.52
	Extremely poor machinery, storage, compartmentation space
	Adequate accommodation and workspace room
	Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

_________________
"The first rule is not to lose; The second rule is not to forget the first rule"

Keep in mind this is perhaps the worst kind of ship to make in springsharp: It's essentially the exact opposite of what the program is designed to do. Ok, a destroyer ala Fantasque or a MTB would end up even messier, but that's about it.
Something worth remembering is that Springsharp greatly overrates the power needed for the speed for these ships. Take the Swedish Halland class for example. It is about 700 tons larger than this, it had a speed of 35 knots, with an engine power of 58 000 SHP. So if you enter, say 33 knots in the springsharp report, the ship would IRL be able to reach(at least) roughly 36 knots.

Shipbucket

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