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1

Thursday, March 18th 2010, 4:30pm

Minelayers

[SIZE=3]Minelayers[/SIZE]
Komitadji-class
- BVK Komitadji (ML-01) - 1939 [SIZE=1]Ordered, under construction in Russia.[/SIZE]
- BVK Vojvoda (ML-02) - 1939 [SIZE=1]Ordered, under construction in Russia.[/SIZE]
- BVK Zname (ML-03) - 1940 [SIZE=1]Ordered, will be built in Russia.[/SIZE]
- BVK Haydutin (ML-04) - 1940 [SIZE=1]Ordered, will be built in Russia.[/SIZE]

[SIZE=3]Summary[/SIZE]
Notes: for Constantinople Treaty purposes these ships are technically logged as destroyers.

2

Thursday, March 18th 2010, 4:58pm

Komitadji-class Minelayers


[SIZE=1]Image created by ALVAMA, thanks Alvama![/SIZE]

Komitadji-class (Proposal B-1940M) Bulgarian Minelayer laid down 1940
Sim by AdmKuznetsov; ships built in Russia

Displacement:
2,727 t light; 2,850 t standard; 3,290 t normal; 3,643 t full load

Dimensions: Length overall / water x beam x draught
487.96 ft / 475.72 ft x 47.57 ft x 10.83 ft (normal load)
148.73 m / 145.00 m x 14.50 m x 3.30 m

Armament:
9 - 4.13" / 105 mm guns (3x3 guns), 35.32lbs / 16.02kg shells, 1940 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward, 2 raised mounts - superfiring
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1940 Model
Anti-aircraft guns in deck mounts with hoists
on side, all amidships, all raised mounts - superfiring
4 - 0.55" / 14.0 mm guns in single mounts, 0.08lbs / 0.04kg shells, 1940 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 331 lbs / 150 kg
Shells per gun, main battery: 300

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.20" / 5 mm -
2nd: 0.98" / 25 mm 0.20" / 5 mm -

- Conning tower: 0.98" / 25 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 59,522 shp / 44,404 Kw = 34.00 kts
Range 7,200nm at 15.00 kts
Bunker at max displacement = 793 tons

Complement:
216 - 282

Cost:
£2.064 million / $8.256 million

Distribution of weights at normal displacement:
Armament: 41 tons, 1.3 %
Armour: 16 tons, 0.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 12 tons, 0.4 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 5 tons, 0.1 %
Machinery: 1,528 tons, 46.4 %
Hull, fittings & equipment: 962 tons, 29.2 %
Fuel, ammunition & stores: 563 tons, 17.1 %
Miscellaneous weights: 180 tons, 5.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,144 lbs / 519 Kg = 32.4 x 4.1 " / 105 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.29
Metacentric height 2.6 ft / 0.8 m
Roll period: 12.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.24
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.470
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 21.81 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.61 ft / 7.50 m
- Forecastle (26 %): 17.06 ft / 5.20 m
- Mid (50 %): 17.06 ft / 5.20 m
- Quarterdeck (15 %): 17.06 ft / 5.20 m
- Stern: 18.04 ft / 5.50 m
- Average freeboard: 17.92 ft / 5.46 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 166.5 %
- Above water (accommodation/working, high = better): 220.9 %
Waterplane Area: 14,681 Square feet or 1,364 Square metres
Displacement factor (Displacement / loading): 89 %
Structure weight / hull surface area: 40 lbs/sq ft or 197 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 0.99
- Overall: 0.53
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Notes:
Twin 105mm semiautomatic DP mounts simmed as triples

Breakdown of Miscellaneous Weights:
Hydrophones- 5 tons
Electronics - 10 tons
Mines and mine delivery system - 165 tons

Ships in class:
- BVK Komitadji (ML-01) - 1939 Ordered, under construction in Russia.
- BVK Vojvoda (ML-02) - 1939 Ordered, under construction in Russia.
- BVK Zname (ML-03) - 1940 Ordered, will be built in Russia.
- BVK Haydutin (ML-04) - 1940 Ordered, will be built in Russia.

3

Thursday, March 18th 2010, 4:59pm

Possible future project.