WesWorld

Q1, 1942

In Service :

6 x Minewarfare MW-1
9 x Minesweepers MS-1

Building :

Public information : 500tons, 60m x 18 m x 3m
2x 3", 18knts

Class Names : MS-1, MS-2, etc.

Bulgarian modified Struma design, Belgium Minesweeper laid down 1936

MS-1, Belgium Minesweeper laid down 1936

Displacement:
480 t light; 495 t standard; 579 t normal; 646 t full load

Dimensions: Length overall / water x beam x draught
200.53 ft / 194.00 ft x 27.00 ft x 9.00 ft (normal load)
61.12 m / 59.13 m x 8.23 m x 2.74 m

Armament:
2 - 2.95" / 75.0 mm guns (1x2 guns), 12.87lbs / 5.84kg shells, 1933 Model
Dual purpose guns in deck mount
on centreline forward
2 - 1.46" / 37.0 mm guns (1x2 guns), 1.55lbs / 0.70kg shells, 1930 Model
Anti-aircraft guns in deck mount
on centreline aft
2 - 0.79" / 20.0 mm guns (1x2 guns), 0.24lbs / 0.11kg shells, 1917 Model
Anti-aircraft guns in deck mount
on centreline forward, all raised guns - superfiring
4 - 0.52" / 13.2 mm guns in single mounts, 0.07lbs / 0.03kg shells, 1928 Model
Machine guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 30 lbs / 13 kg
Shells per gun, main battery: 200

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

- Conning tower: 0.98" / 25 mm

Machinery:
Coal and oil fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 1,110 ihp / 828 Kw = 15.00 kts
Range 5,000nm at 10.50 kts
Bunker at max displacement = 151 tons (90% coal)

Complement:
58 - 76

Cost:
£0.155 million / $0.619 million

Distribution of weights at normal displacement:
Armament: 4 tons, 0.6 %
Armour: 4 tons, 0.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 2 tons, 0.4 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 1 tons, 0.3 %
Machinery: 67 tons, 11.6 %
Hull, fittings & equipment: 226 tons, 38.9 %
Fuel, ammunition & stores: 99 tons, 17.1 %
Miscellaneous weights: 180 tons, 31.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,083 lbs / 491 Kg = 84.1 x 3.0 " / 75 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 0.8 ft / 0.2 m
Roll period: 12.6 seconds
Steadiness - As gun platform (Average = 50 %): 58 %
- Recoil effect (Restricted arc if above 1.00): 0.06
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.430
Length to Beam Ratio: 7.19 : 1
'Natural speed' for length: 13.93 kts
Power going to wave formation at top speed: 46 %
Trim (Max stability = 0, Max steadiness = 100): 29
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: 14.00 ft / 4.27 m
- Forecastle (20 %): 11.00 ft / 3.35 m
- Mid (50 %): 11.00 ft / 3.35 m
- Quarterdeck (15 %): 11.00 ft / 3.35 m
- Stern: 11.00 ft / 3.35 m
- Average freeboard: 11.24 ft / 3.43 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 77.4 %
- Above water (accommodation/working, high = better): 118.8 %
Waterplane Area: 3,289 Square feet or 306 Square metres
Displacement factor (Displacement / loading): 166 %
Structure weight / hull surface area: 36 lbs/sq ft or 177 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.89
- Longitudinal: 4.64
- Overall: 1.05
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

The 75mm is Semi-Auto by Bourges-FRC (Fonderie Royale de Cannons), and the 37mm are by Schneiders license-built by FRC, while the 20mm is Madsen and the 13.2mm is FN-Browning.


Ed: 2/7/12 : Miscellaneous weight is intended to represent both minesweepeing and degaussing gear.
Hydrophones, 2 K-guns, 1 rail and storage for 40 DCs is also fitted.

MW-1, Belgium Minesweeper/layer laid down 1936

Displacement:
622 t light; 642 t standard; 782 t normal; 895 t full load

Dimensions: Length overall / water x beam x draught
229.73 ft / 227.00 ft x 26.00 ft x 8.00 ft (normal load)
70.02 m / 69.19 m x 7.92 m x 2.44 m

Armament:
2 - 2.95" / 75.0 mm guns (1x2 guns), 12.87lbs / 5.84kg shells, 1934 Model
Dual purpose guns in deck mount
on centreline forward
2 - 1.46" / 37.0 mm guns (1x2 guns), 1.55lbs / 0.70kg shells, 1930 Model
Anti-aircraft guns in deck mount
on centreline aft
2 - 0.79" / 20.0 mm guns (1x2 guns), 0.24lbs / 0.11kg shells, 1927 Model
Anti-aircraft guns in deck mount
on centreline forward, all raised guns - superfiring
4 - 0.52" / 13.2 mm guns in single mounts, 0.07lbs / 0.03kg shells, 1928 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 30 lbs / 13 kg
Shells per gun, main battery: 220

Machinery:
Coal and oil fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 1,912 ihp / 1,426 Kw = 16.50 kts
Range 5,000nm at 12.00 kts
Bunker at max displacement = 253 tons (90% coal)

Complement:
73 - 96

Cost:
£0.217 million / $0.868 million

Distribution of weights at normal displacement:
Armament: 4 tons, 0.5 %
Machinery: 116 tons, 14.8 %
Hull, fittings & equipment: 323 tons, 41.2 %
Fuel, ammunition & stores: 160 tons, 20.5 %
Miscellaneous weights: 180 tons, 23.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,211 lbs / 549 Kg = 94.1 x 3.0 " / 75 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 0.8 ft / 0.2 m
Roll period: 12.4 seconds
Steadiness - As gun platform (Average = 50 %): 73 %
- Recoil effect (Restricted arc if above 1.00): 0.05
Seaboat quality (Average = 1.00): 1.41

Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.580
Length to Beam Ratio: 8.73 : 1
'Natural speed' for length: 15.07 kts
Power going to wave formation at top speed: 48 %
Trim (Max stability = 0, Max steadiness = 100): 52
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: 10.20 ft / 3.11 m
- Forecastle (20 %): 10.00 ft / 3.05 m
- Mid (50 %): 8.00 ft / 2.44 m
- Quarterdeck (15 %): 6.00 ft / 1.83 m (8.00 ft / 2.44 m before break)
- Stern: 6.00 ft / 1.83 m
- Average freeboard: 8.42 ft / 2.57 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 77.7 %
- Above water (accommodation/working, high = better): 93.5 %
Waterplane Area: 4,237 Square feet or 394 Square metres
Displacement factor (Displacement / loading): 177 %
Structure weight / hull surface area: 50 lbs/sq ft or 242 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.38
- Longitudinal: 1.83
- Overall: 1.42
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

The 75mm is Semi-Auto by Bourges-FRC (Fonderie Royale de Cannons), and the 37mm are by Schneiders license-built by FRC, while the 20mm is Madsen and the 13.2mm is FN-Browning.

Ed: 2/7/12 : Miscellaneous weight is intended to represent both minesweepeing and degaussing gear.
Minerails and minestorage is also present.

MW-1 Class, Belgium Minesweeper/ Minelayer laid down 1946

Displacement:
576 t light; 598 t standard; 685 t normal; 755 t full load

Dimensions: Length overall / water x beam x draught
234.71 ft / 229.66 ft x 29.53 ft x 8.04 ft (normal load)
71.54 m / 70.00 m x 9.00 m x 2.45 m

Armament:
2 - 3.54" / 90.0 mm guns (1x2 guns), 24.25lbs / 11.00kg shells, 1943 Model
Dual purpose guns in deck mount
on centreline forward
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on centreline ends, evenly spread, all raised mounts
4 - 0.52" / 13.2 mm guns in single mounts, 0.07lbs / 0.03kg shells, 1936 Model
Machine guns in deck mounts
on side ends, evenly spread, 2 raised mounts - superfiring
Weight of broadside 55 lbs / 25 kg
Shells per gun, main battery: 250

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.39" / 10 mm -
2nd: 0.39" / 10 mm 0.20" / 5 mm -

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 4,000 shp / 2,984 Kw = 20.55 kts
Range 6,500nm at 12.00 kts
Bunker at max displacement = 158 tons

Complement:
66 - 87

Cost:
£0.280 million / $1.120 million

Distribution of weights at normal displacement:
Armament: 6 tons, 0.9 %
Armour: 3 tons, 0.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3 tons, 0.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 100 tons, 14.6 %
Hull, fittings & equipment: 306 tons, 44.6 %
Fuel, ammunition & stores: 110 tons, 16.0 %
Miscellaneous weights: 160 tons, 23.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,411 lbs / 640 Kg = 63.4 x 3.5 " / 90 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 1.0 ft / 0.3 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.10
Seaboat quality (Average = 1.00): 1.82

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.440
Length to Beam Ratio: 7.78 : 1
'Natural speed' for length: 15.15 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 39
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: 18.86 ft / 5.75 m
- Forecastle (20 %): 17.22 ft / 5.25 m
- Mid (55 %): 15.58 ft / 4.75 m (7.38 ft / 2.25 m aft of break)
- Quarterdeck (15 %): 7.38 ft / 2.25 m
- Stern: 7.38 ft / 2.25 m
- Average freeboard: 12.64 ft / 3.85 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 81.1 %
- Above water (accommodation/working, high = better): 151.6 %
Waterplane Area: 4,291 Square feet or 399 Square metres
Displacement factor (Displacement / loading): 165 %
Structure weight / hull surface area: 38 lbs/sq ft or 187 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.85
- Longitudinal: 4.20
- Overall: 1.00
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


Misc Weight:
5 tons for Signaal M1946 surface search RDF set
10 tons for mine locating ASDIC set
Sweeper Fit: 60 tons for minesweeping gear and handling gear
Sweeper Escort Fit: as above plus 15 tons for 1x mine rail with 15x DCs
Layer Fit: 15 tons for mine rails and 120 tons for 80x mines

Herstal Class, Belgium Minesweeper laid down 1947

Displacement:
150 t light; 154 t standard; 163 t normal; 171 t full load

Dimensions: Length overall / water x beam x draught
117.49 ft / 113.19 ft x 21.98 ft x 6.89 ft (normal load)
35.81 m / 34.50 m x 6.70 m x 2.10 m

Armament:
2 - 0.91" / 23.0 mm guns (1x2 guns), 0.44lbs / 0.20kg shells, 1941 Model
Anti-aircraft guns in deck mount
on centreline forward
2 - 0.52" / 13.2 mm guns in single mounts, 0.07lbs / 0.03kg shells, 1928 Model
Machine guns in deck mounts
on side, all amidships
Weight of broadside 1 lbs / 0 kg
Shells per gun, main battery: 850

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

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 620 shp / 462 Kw = 15.03 kts
Range 2,300nm at 10.00 kts
Bunker at max displacement = 17 tons

Complement:
22 - 29

Cost:
£0.054 million / $0.218 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.1 %
Armour: 1 tons, 0.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1 tons, 0.4 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 15 tons, 9.4 %
Hull, fittings & equipment: 69 tons, 42.2 %
Fuel, ammunition & stores: 13 tons, 8.1 %
Miscellaneous weights: 65 tons, 39.9 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
363 lbs / 165 Kg = 978.9 x 0.9 " / 23 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.03
Metacentric height 0.6 ft / 0.2 m
Roll period: 12.4 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.93

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.333
Length to Beam Ratio: 5.15 : 1
'Natural speed' for length: 10.64 kts
Power going to wave formation at top speed: 60 %
Trim (Max stability = 0, Max steadiness = 100): 26
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: 11.81 ft / 3.60 m
- Forecastle (20 %): 9.84 ft / 3.00 m
- Mid (65 %): 8.20 ft / 2.50 m
- Quarterdeck (15 %): 7.38 ft / 2.25 m
- Stern: 7.22 ft / 2.20 m
- Average freeboard: 8.84 ft / 2.69 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 75.3 %
- Above water (accommodation/working, high = better): 113.8 %
Waterplane Area: 1,520 Square feet or 141 Square metres
Displacement factor (Displacement / loading): 168 %
Structure weight / hull surface area: 25 lbs/sq ft or 124 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.79
- Longitudinal: 8.61
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Misc Weight
40 tons sweeping gear and handling equipment
5 tons mine detecting ASDIC
5 tons Signaal M1946 surface search RDF set
15 tons growth margin