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Wednesday, May 28th 2008, 9:18pm

Smetka-class Destroyer



This ship is something of a cross between the WWTL Z-214s and an OTL British Tribal-class destroyer.

Quoted

Smetka, Bulgarian Destroyer laid down 1937

Displacement:
1,811 t light; 1,927 t standard; 2,122 t normal; 2,278 t full load

Dimensions: Length overall / water x beam x draught
387.56 ft / 377.30 ft x 36.60 ft x 13.00 ft (normal load)
118.13 m / 115.00 m x 11.16 m x 3.96 m

Armament:
8 - 4.72" / 120 mm guns (4x2 guns), 52.72lbs / 23.91kg shells, 1937 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
2 - 1.46" / 37.0 mm guns (1x2 guns), 1.55lbs / 0.70kg shells, 1937 Model
Anti-aircraft guns in deck mount
on side amidships, all raised guns
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
8 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1937 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 433 lbs / 196 kg
Shells per gun, main battery: 300
4 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm
2nd: 0.79" / 20 mm 0.39" / 10 mm -
3rd: 0.79" / 20 mm 0.39" / 10 mm -
4th: 0.39" / 10 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 40,730 shp / 30,385 Kw = 34.00 kts
Range 5,000nm at 14.00 kts
Bunker at max displacement = 351 tons

Complement:
156 - 203

Cost:
£1.332 million / $5.329 million

Distribution of weights at normal displacement:
Armament: 54 tons, 2.6 %
Armour: 35 tons, 1.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 35 tons, 1.6 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 967 tons, 45.6 %
Hull, fittings & equipment: 705 tons, 33.2 %
Fuel, ammunition & stores: 311 tons, 14.7 %
Miscellaneous weights: 50 tons, 2.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
652 lbs / 296 Kg = 12.4 x 4.7 " / 120 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.20
Metacentric height 1.5 ft / 0.5 m
Roll period: 12.4 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.68
Seaboat quality (Average = 1.00): 1.10

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.414
Length to Beam Ratio: 10.31 : 1
'Natural speed' for length: 22.36 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 55
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.00 ft / 6.71 m
- Forecastle (30 %): 20.00 ft / 6.10 m
- Mid (50 %): 20.00 ft / 6.10 m (13.00 ft / 3.96 m aft of break)
- Quarterdeck (15 %): 13.00 ft / 3.96 m
- Stern: 13.00 ft / 3.96 m
- Average freeboard: 16.74 ft / 5.10 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 171.2 %
- Above water (accommodation/working, high = better): 135.2 %
Waterplane Area: 8,898 Square feet or 827 Square metres
Displacement factor (Displacement / loading): 76 %
Structure weight / hull surface area: 39 lbs/sq ft or 191 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.18
- Overall: 0.58
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent


Just a design idea for the moment...

HoOmAn

Keeper of the Sacred Block Coefficient

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2

Wednesday, May 28th 2008, 11:39pm

I like the pic a lot. Looks very German to me, much like a Z34-class.

I can identify lots of details taken from my RSAN drawings. So have you put it together or is it based on Wes´ template?

3

Wednesday, May 28th 2008, 11:56pm

It thought it looked kind of familiar.....

It's the Archer Class's little brother!!



Archer Class (build4), Denmark DD (aa) laid down 1932

Displacement:
1,956 t light; 2,041 t standard; 2,348 t normal; 2,594 t full load

Dimensions: Length overall / water x beam x draught
405.97 ft / 390.00 ft x 39.00 ft x 14.00 ft (normal load)
123.74 m / 118.87 m x 11.89 m x 4.27 m

Armament:
8 - 4.72" / 120 mm guns (4x2 guns), 52.72lbs / 23.91kg shells, 1930 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
10 - 1.46" / 37.0 mm guns (5x2 guns), 1.55lbs / 0.70kg shells, 1928 Model
Anti-aircraft guns in deck mounts
on side, all amidships, 4 raised mounts - superfiring
12 - 0.79" / 20.0 mm guns (6x2 guns), 0.24lbs / 0.11kg shells, 1925 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised mounts
Weight of broadside 440 lbs / 200 kg
Shells per gun, main battery: 150
8 - 21.0" / 533 mm above water torpedoes

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

- Conning tower: 0.79" / 20 mm

Machinery:
Oil fired boilers, steam turbines,
Electric motors, 2 shafts, 41,928 shp / 31,279 Kw = 34.00 kts
Range 10,000nm at 12.00 kts
Bunker at max displacement = 553 tons

Complement:
168 - 219

Cost:
£1.210 million / $4.840 million

Distribution of weights at normal displacement:
Armament: 55 tons, 2.3 %
Armour: 29 tons, 1.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 26 tons, 1.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 3 tons, 0.1 %
Machinery: 1,082 tons, 46.1 %
Hull, fittings & equipment: 710 tons, 30.2 %
Fuel, ammunition & stores: 392 tons, 16.7 %
Miscellaneous weights: 80 tons, 3.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
691 lbs / 313 Kg = 13.1 x 4.7 " / 120 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.17
Metacentric height 1.6 ft / 0.5 m
Roll period: 12.9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.59
Seaboat quality (Average = 1.00): 1.02

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.386
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 22.89 kts
Power going to wave formation at top speed: 65 %
Trim (Max stability = 0, Max steadiness = 100): 69
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 5.00 ft / 1.52 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.00 ft / 5.79 m
- Forecastle (20 %): 17.00 ft / 5.18 m
- Mid (50 %): 15.50 ft / 4.72 m
- Quarterdeck (15 %): 14.50 ft / 4.42 m
- Stern: 14.00 ft / 4.27 m
- Average freeboard: 15.82 ft / 4.82 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 170.5 %
- Above water (accommodation/working, high = better): 108.7 %
Waterplane Area: 9,646 Square feet or 896 Square metres
Displacement factor (Displacement / loading): 78 %
Structure weight / hull surface area: 40 lbs/sq ft or 195 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.64
- Overall: 0.56
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform

This post has been edited 1 times, last edit by "Commodore Green" (May 29th 2008, 12:03am)


4

Thursday, May 29th 2008, 12:05am

Quoted

Originally posted by HoOmAn
I like the pic a lot. Looks very German to me, much like a Z34-class.

I can identify lots of details taken from my RSAN drawings. So have you put it together or is it based on Wes´ template?

Actually I ripped apart a drawing of the Turkish DDLs and put it back together the way I wanted it. I'm working on a way to draw ships myself, but kitbashing a previous drawing saves me a ridiculous amount of time. And I'm all about being lazy... *Shifty-eyed glance.*