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1

Monday, February 23rd 2009, 9:12pm

Retired Ships

Ships retired from the Bulgarian Royal Navy.

- Battleship Sofia.
- Light cruiser Montana.
- Light cruiser Stara Zagora.

2

Monday, February 23rd 2009, 9:14pm

[SIZE=3]Sofia, Manila-class Predreadnought, laid down 1898[/SIZE]

Displacement:
11,132 t light; 11,661 t standard; 14,486 t normal; 16,747 t full load

Dimensions: Length overall / water x beam x draught
394.00 ft / 394.00 ft x 73.00 ft x 26.51 ft (normal load)
120.09 m / 120.09 m x 22.25 m x 8.08 m

Armament:
4 - 12.00" / 305 mm guns (2x2 guns), 850.00lbs / 385.55kg shells, 1898 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
16 - 6.00" / 152 mm guns in single mounts, 100.00lbs / 45.36kg shells, 1898 Model
Breech loading guns in casemate mounts
on side, evenly spread
10 guns in hull casemates - Limited use in all but light seas
6 - 3.00" / 76.2 mm guns in single mounts, 12.00lbs / 5.44kg shells, 1898 Model
Quick firing guns in deck mounts
on side, all amidships, all raised mounts - superfiring
4 - 1.57" / 40.0 mm guns in single mounts, 2.00lbs / 0.91kg shells, 1926 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
8 - 0.54" / 13.7 mm guns in single mounts, 0.11lbs / 0.05kg shells, 1927 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts

Weight of broadside 5,081 lbs / 2,305 kg
Shells per gun, main battery: 80

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 10.0" / 254 mm 228.52 ft / 69.65 m 10.25 ft / 3.12 m
Ends: 6.00" / 152 mm 165.46 ft / 50.43 m 10.25 ft / 3.12 m
Upper: 8.00" / 203 mm 228.52 ft / 69.65 m 8.00 ft / 2.44 m
Main Belt covers 89 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 10.0" / 254 mm 4.70" / 119 mm 10.0" / 254 mm
2nd: 4.00" / 102 mm - 3.00" / 76 mm
3rd: 0.79" / 20 mm - -

- Armour deck: 2.00" / 51 mm, Conning tower: 10.00" / 254 mm

Machinery:
Coal fired boilers, simple reciprocating steam engines,
Direct drive, 2 shafts, 12,897 ihp / 9,621 Kw = 17.50 kts
Range 3,900nm at 17.50 kts (Bunkerage = 5,086 tons)

Complement:
659 - 858

Cost:
£1.269 million / $5.075 million

Distribution of weights at normal displacement:
Armament: 659 tons, 4.6 %
Armour: 3,898 tons, 26.9 %
- Belts: 2,137 tons, 14.8 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 806 tons, 5.6 %
- Armour Deck: 826 tons, 5.7 %
- Conning Tower: 128 tons, 0.9 %
Machinery: 2,324 tons, 16.0 %
Hull, fittings & equipment: 4,205 tons, 29.0 %
Fuel, ammunition & stores: 3,354 tons, 23.2 %
Miscellaneous weights: 46 tons, 0.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
14,515 lbs / 6,584 Kg = 16.8 x 12.0 " / 305 mm shells or 2.0 torpedoes
Stability (Unstable if below 1.00): 1.21
Metacentric height 4.4 ft / 1.4 m
Roll period: 14.5 seconds
Steadiness - As gun platform (Average = 50 %): 83 %
- Recoil effect (Restricted arc if above 1.00): 0.38
Seaboat quality (Average = 1.00): 1.31

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.665
Length to Beam Ratio: 5.40 : 1
'Natural speed' for length: 19.85 kts
Power going to wave formation at top speed: 49 %
Trim (Max stability = 0, Max steadiness = 100): 63
Bow angle (Positive = bow angles forward): -5.00 degrees
Stern overhang: -3.28 ft / -1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 16.01 ft / 4.88 m
- Forecastle (21 %): 12.99 ft / 3.96 m
- Mid (50 %): 12.99 ft / 3.96 m
- Quarterdeck (21 %): 12.99 ft / 3.96 m
- Stern: 12.99 ft / 3.96 m
- Average freeboard: 13.25 ft / 4.04 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 86.4 %
- Above water (accommodation/working, high = better): 83.9 %
Waterplane Area: 22,337 Square feet or 2,075 Square metres
Displacement factor (Displacement / loading): 104 %
Structure weight / hull surface area: 135 lbs/sq ft or 660 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.04
- Longitudinal: 2.07
- Overall: 1.12
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is cramped
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Notes:
Scrapped in 1936.

3

Monday, February 23rd 2009, 9:16pm

[SIZE=3]Montana, Bulgarian (ex-German, ex-Philippine) Light Cruiser laid down 1898 (Engine 1927)[/SIZE]

Displacement:
2,781 t light; 2,840 t standard; 2,963 t normal; 3,061 t full load

Dimensions: Length overall / water x beam x draught
344.49 ft / 344.49 ft x 40.03 ft x 15.88 ft (normal load)
105.00 m / 105.00 m x 12.20 m x 4.84 m

Armament:
4 - 4.13" / 105 mm guns (2x2 guns), 35.32lbs / 16.02kg shells, 1898 Model
Breech loading guns in deck mounts with hoists
on centreline ends, evenly spread
6 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1898 Model
Breech loading guns in casemate mounts
on side, all amidships
6 guns in hull casemates - Limited use in all but light seas
Weight of broadside 353 lbs / 160 kg
Shells per gun, main battery: 100
2 - 19.7" / 500 mm submerged torpedo tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.95" / 75 mm 223.92 ft / 68.25 m 7.58 ft / 2.31 m
Ends: 1.97" / 50 mm 120.54 ft / 36.74 m 7.58 ft / 2.31 m
Upper: 2.95" / 75 mm 271.16 ft / 82.65 m 8.01 ft / 2.44 m
Main Belt covers 100 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.79" / 20 mm - -
2nd: 1.97" / 50 mm - -

- Conning tower: 1.97" / 50 mm

Machinery:
Oil fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 9,801 ihp / 7,312 Kw = 22.10 kts
Range 3,570nm at 10.00 kts
Bunker at max displacement = 221 tons

Complement:
200 - 261

Cost:
£0.213 million / $0.852 million

Distribution of weights at normal displacement:
Armament: 44 tons, 1.5 %
Armour: 581 tons, 19.6 %
- Belts: 540 tons, 18.2 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 33 tons, 1.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 9 tons, 0.3 %
Machinery: 562 tons, 19.0 %
Hull, fittings & equipment: 1,194 tons, 40.3 %
Fuel, ammunition & stores: 182 tons, 6.1 %
Miscellaneous weights: 400 tons, 13.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3,619 lbs / 1,642 Kg = 102.5 x 4.1 " / 105 mm shells or 1.0 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 1.5 ft / 0.5 m
Roll period: 13.8 seconds
Steadiness - As gun platform (Average = 50 %): 55 %
- Recoil effect (Restricted arc if above 1.00): 0.16
Seaboat quality (Average = 1.00): 1.37

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.474
Length to Beam Ratio: 8.61 : 1
'Natural speed' for length: 21.51 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 40
Bow angle (Positive = bow angles forward): -40.00 degrees
Stern overhang: -19.69 ft / -6.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 20.41 ft / 6.22 m
- Forecastle (20 %): 12.99 ft / 3.96 m
- Mid (50 %): 12.99 ft / 3.96 m
- Quarterdeck (15 %): 12.99 ft / 3.96 m
- Stern: 12.99 ft / 3.96 m
- Average freeboard: 13.59 ft / 4.14 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 92.5 %
- Above water (accommodation/working, high = better): 115.4 %
Waterplane Area: 9,326 Square feet or 866 Square metres
Displacement factor (Displacement / loading): 121 %
Structure weight / hull surface area: 77 lbs/sq ft or 376 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.19
- Longitudinal: 2.33
- Overall: 1.28
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Good seaboat, rides out heavy weather easily

Notes:
Scrapped in 1936.

4

Sunday, September 26th 2010, 2:23am

[SIZE=3]Stara Zagora, Bulgarian (Ex-German, ex-Philippine) Training Cruiser laid down 1902 (Engine 1927)[/SIZE]

Displacement:
3,349 t light; 3,456 t standard; 3,651 t normal; 3,807 t full load

Dimensions: Length overall / water x beam x draught
364.50 ft / 364.50 ft x 43.64 ft x 18.18 ft (normal load)
111.10 m / 111.10 m x 13.30 m x 5.54 m

Armament:
4 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1902 Model
Breech loading guns in deck mounts with hoists
on centreline ends, evenly spread
6 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1902 Model
Breech loading guns in casemate mounts
on side, all amidships
6 guns in hull casemates - Limited use in heavy seas
Weight of broadside 353 lbs / 160 kg
Shells per gun, main battery: 150
2 - 17.7" / 450 mm submerged torpedo tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.94" / 100 mm 236.93 ft / 72.22 m 7.93 ft / 2.42 m
Ends: 1.97" / 50 mm 127.56 ft / 38.88 m 7.93 ft / 2.42 m
Upper: 2.95" / 75 mm 236.93 ft / 72.22 m 8.00 ft / 2.44 m
Main Belt covers 100 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.95" / 75 mm 0.98" / 25 mm 1.18" / 30 mm
2nd: 1.97" / 50 mm - -

- Armour deck: 1.97" / 50 mm, Conning tower: 5.91" / 150 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 15,367 shp / 11,464 Kw = 23.30 kts
Range 4,270nm at 12.00 kts
Bunker at max displacement = 351 tons

Complement:
234 - 305

Cost:
£0.222 million / $0.889 million

Distribution of weights at normal displacement:
Armament: 44 tons, 1.2 %
Armour: 1,066 tons, 29.2 %
- Belts: 621 tons, 17.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 47 tons, 1.3 %
- Armour Deck: 367 tons, 10.1 %
- Conning Tower: 30 tons, 0.8 %
Machinery: 485 tons, 13.3 %
Hull, fittings & equipment: 1,554 tons, 42.6 %
Fuel, ammunition & stores: 302 tons, 8.3 %
Miscellaneous weights: 200 tons, 5.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7,017 lbs / 3,183 Kg = 198.7 x 4.1 " / 105 mm shells or 1.8 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 1.7 ft / 0.5 m
Roll period: 14.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.19
Seaboat quality (Average = 1.00): 1.81

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.442
Length to Beam Ratio: 8.35 : 1
'Natural speed' for length: 19.09 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 39
Bow angle (Positive = bow angles forward): -20.00 degrees
Stern overhang: -22.97 ft / -7.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.97 ft / 7.00 m
- Forecastle (20 %): 16.40 ft / 5.00 m
- Mid (50 %): 16.40 ft / 5.00 m
- Quarterdeck (15 %): 16.40 ft / 5.00 m
- Stern: 16.40 ft / 5.00 m
- Average freeboard: 16.93 ft / 5.16 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 62.4 %
- Above water (accommodation/working, high = better): 134.6 %
Waterplane Area: 10,080 Square feet or 936 Square metres
Displacement factor (Displacement / loading): 141 %
Structure weight / hull surface area: 81 lbs/sq ft or 398 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.13
- Longitudinal: 3.66
- Overall: 1.27
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Ships in Class:
- Stara Zagora (ex SMS Hamburg) - returned to Germany for museum ship conversion, 1939.

5

Tuesday, November 1st 2011, 4:02pm


[SIZE=1]Original image by thesmilingassassin and modified by me.[/SIZE]

[SIZE=3]Slivnitsa-class, Bulgarian Torpedo Boat laid down in 1931[/SIZE]
Eight sold to China 1940; two scrapped after collision.

Displacement:
607 t light; 627 t standard; 678 t normal; 719 t full load

Dimensions: Length overall / water x beam x draught
268.93 ft / 262.47 ft x 22.97 ft x 9.84 ft (normal load)
81.97 m / 80.00 m x 7.00 m x 3.00 m

Armament:
2 - 3.94" / 100 mm guns in single mounts, 30.51lbs / 13.84kg shells, 1930 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread, 1 raised mount
2 - 0.79" / 20.0 mm guns (1x2 guns), 0.24lbs / 0.11kg shells, 1930 Model
Anti-aircraft guns in deck mount
on side
Weight of broadside 62 lbs / 28 kg
Shells per gun, main battery: 200
6 - 17.7" / 450 mm above water torpedoes

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

- Conning tower: 0.79" / 20 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 20,000 shp / 14,920 Kw = 32.68 kts
Range 2,000nm at 15.00 kts
Bunker at max displacement = 92 tons

Complement:
66 - 86

Cost:
£0.313 million / $1.252 million

Distribution of weights at normal displacement:
Armament: 8 tons, 1.1 %
Armour: 5 tons, 0.7 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3 tons, 0.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 1 tons, 0.2 %
Machinery: 337 tons, 49.7 %
Hull, fittings & equipment: 198 tons, 29.1 %
Fuel, ammunition & stores: 71 tons, 10.5 %
Miscellaneous weights: 60 tons, 8.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
161 lbs / 73 Kg = 5.3 x 3.9 " / 100 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 0.6 ft / 0.2 m
Roll period: 12.3 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.19
Seaboat quality (Average = 1.00): 0.79

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.400
Length to Beam Ratio: 11.43 : 1
'Natural speed' for length: 18.54 kts
Power going to wave formation at top speed: 70 %
Trim (Max stability = 0, Max steadiness = 100): 63
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 18.04 ft / 5.50 m
- Forecastle (20 %): 16.40 ft / 5.00 m
- Mid (30 %): 16.40 ft / 5.00 m (8.20 ft / 2.50 m aft of break)
- Quarterdeck (15 %): 8.20 ft / 2.50 m
- Stern: 8.20 ft / 2.50 m
- Average freeboard: 10.79 ft / 3.29 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 178.8 %
- Above water (accommodation/working, high = better): 53.8 %
Waterplane Area: 3,851 Square feet or 358 Square metres
Displacement factor (Displacement / loading): 51 %
Structure weight / hull surface area: 24 lbs/sq ft or 116 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.24
- Overall: 0.58
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Ships in Class:
- BVK Slivnitsa
- BVK Bulgarophygon
- BVK Trayanovi Vrata (Trajan's Gates)
- BVK Kalimantsi
- BVK Shipka
- BVK Doiran
- BVK Ovche Pole
- BVK Rusion
- BVK Morava
- BVK Kirk Kilisse

6

Tuesday, November 1st 2011, 4:02pm


[SIZE=1]Original image by thesmilingassassin and modified by me.[/SIZE]

[SIZE=3]Hristo Botev-class, Bulgarian Torpedo Boat laid down in 1933[/SIZE]
As simmed by Rooijen.

All eight sold to Turkey in 1940.

Displacement:
757 t light; 777 t standard; 837 t normal; 885 t full load

Dimensions: Length overall / water x beam x draught
288.74 ft / 283.46 ft x 26.25 ft x 9.84 ft (normal load)
88.01 m / 86.40 m x 8.00 m x 3.00 m

Armament:
1 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1933 Model
Dual purpose gun in deck mount
on centreline aft
1 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1933 Model
Anti-aircraft gun in deck mount
on centreline forward
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 37 lbs / 17 kg
Shells per gun, main battery: 150
6 - 21.0" / 533.4 mm above water torpedoes

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 29,324 shp / 21,876 Kw = 35.00 kts
Range 1,200nm at 19.00 kts
Bunker at max displacement = 107 tons

Complement:
77 - 101

Cost:
£0.449 million / $1.796 million

Distribution of weights at normal displacement:
Armament: 5 tons, 0.6%
Machinery: 461 tons, 55.1%
Hull, fittings & equipment: 282 tons, 33.6%
Fuel, ammunition & stores: 80 tons, 9.5%
Miscellaneous weights: 10 tons, 1.2%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
240 lbs / 109 Kg = 6.8 x 4.1 " / 105 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.20
Metacentric height 0.9 ft / 0.3 m
Roll period: 11.4 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.07
Seaboat quality (Average = 1.00): 0.80

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.400
Length to Beam Ratio: 10.80 : 1
'Natural speed' for length: 19.35 kts
Power going to wave formation at top speed: 72 %
Trim (Max stability = 0, Max steadiness = 100): 64
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.69 ft / 6.00 m
- Forecastle (20%): 12.14 ft / 3.70 m
- Mid (50%): 12.14 ft / 3.70 m
- Quarterdeck (15%): 12.14 ft / 3.70 m
- Stern: 12.14 ft / 3.70 m
- Average freeboard: 12.74 ft / 3.88 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 183.4%
- Above water (accommodation/working, high = better): 63.4%
Waterplane Area: 4,753 Square feet or 442 Square metres
Displacement factor (Displacement / loading): 48%
Structure weight / hull surface area: 27 lbs/sq ft or 134 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.85
- Overall: 0.59
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Breakdown in Miscellaneous Weights:
- 10 tons for ASW fit

Ships in Class:
- BVK Hristo Botev
- BVK Plovdiv
- BVK Burgas
- BVK Rousse
- BVK Pleven
- BVK Dobrich
- BVK Letyashti
- BVK Bditelni