WesWorld

Quoted

Originally posted by Hood
Hull form characteristics:
Hull has low quarterdeck
and transom stern

Transom sterns not allowed by competition rules, so that would need to be changed.

Rats, missed that on the SS report!

Ho hum, Vickers sends another batch of drawings and specs. 130mm guns and all the trimmings as usual.

Bulgarian Minelayer, Great Britain Minelayer laid down 1938

Displacement:
2,730 t light; 2,878 t standard; 3,182 t normal; 3,426 t full load

Dimensions: Length overall / water x beam x draught
434.10 ft / 425.00 ft x 39.00 ft x 15.00 ft (normal load)
132.31 m / 129.54 m x 11.89 m x 4.57 m

Armament:
6 - 5.12" / 130 mm guns (3x2 guns), 67.03lbs / 30.41kg shells, 1938 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward, 2 raised mounts - superfiring
8 - 1.57" / 40.0 mm guns (4x2 guns), 1.95lbs / 0.88kg shells, 1938 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
4 - 0.79" / 20.0 mm guns (2x2 guns), 0.24lbs / 0.11kg shells, 1938 Model
Anti-aircraft guns in deck mounts
on side, all forward, all raised mounts - superfiring
Weight of broadside 419 lbs / 190 kg
Shells per gun, main battery: 350

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.59" / 15 mm 0.59" / 15 mm
2nd: 0.39" / 10 mm - -
3rd: 0.39" / 10 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 60,000 shp / 44,760 Kw = 34.05 kts
Range 5,000nm at 15.00 kts
Bunker at max displacement = 548 tons

Complement:
211 - 275

Cost:
£1.999 million / $7.998 million

Distribution of weights at normal displacement:
Armament: 52 tons, 1.6 %
Armour: 17 tons, 0.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 17 tons, 0.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,537 tons, 48.3 %
Hull, fittings & equipment: 1,024 tons, 32.2 %
Fuel, ammunition & stores: 452 tons, 14.2 %
Miscellaneous weights: 100 tons, 3.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,072 lbs / 486 Kg = 16.0 x 5.1 " / 130 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.37
Metacentric height 2.1 ft / 0.6 m
Roll period: 11.3 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.53
Seaboat quality (Average = 1.00): 1.44

Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.448
Length to Beam Ratio: 10.90 : 1
'Natural speed' for length: 20.62 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.00 ft / 7.62 m
- Forecastle (20 %): 21.50 ft / 6.55 m
- Mid (50 %): 20.00 ft / 6.10 m
- Quarterdeck (15 %): 11.00 ft / 3.35 m (20.00 ft / 6.10 m before break)
- Stern: 11.00 ft / 3.35 m
- Average freeboard: 19.46 ft / 5.93 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 173.6 %
- Above water (accommodation/working, high = better): 193.9 %
Waterplane Area: 10,555 Square feet or 981 Square metres
Displacement factor (Displacement / loading): 83 %
Structure weight / hull surface area: 43 lbs/sq ft or 209 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.67
- Overall: 0.59
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily

Alex has drawn the competition-winning vessel from Russia.

It's a nice looking design. Are the mounts enclosed? If so you won't be needing the blast shields. Probably useful to raise X mounting as well.

I remain a bit dubious about the various radars, seems more like 50s / 60s style.

Great drawing. She surely looks differently.

Question: Does it make sense to have her search lights installed so low in their tubes they cannot really illuminate what is nearby?

Now this Is a good looking ship.
Great drawing by the way.

An excellent drawing!

From what I know, I think the Russians were providing a fairly old model as a test unit for Bulgaria.

*Feels spoiled with the fact that he still has 14 units in reserve*

Quoted

Originally posted by TexanCowboy
From what I know, I think the Russians were providing a fairly old model as a test unit for Bulgaria.

News to me.

Bulgaria doesn't have any radar but starting with the Kyustendils designed masts in order to carry it. The first Bulgarian radar will likely be Atlantean or British, though French or Russian radars are also likely.