WesWorld

Q1, 1942

In Service :
1x Zinnia
1x Artevelde
6x PC-1
9x DD-1

Building :
7 x DD-1

Public information : 1,200tons, 100m x 14m, x 2m, 1x105mm, 21 knots

Class Names :
Artevelde

Artevelde, Belgium Training Sloop laid down 1935

Displacement:
1,129 t light; 1,160 t standard; 1,274 t normal; 1,365 t full load

Dimensions: Length overall / water x beam x draught
331.22 ft / 321.52 ft x 45.93 ft x 6.56 ft (normal load)
100.96 m / 98.00 m x 14.00 m x 2.00 m

Armament:
1 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1935 Model
Quick firing gun in a deck mount with hoist
on centreline forward
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1930 Model
Anti-aircraft guns in deck mounts
on side, all amidships
8 - 0.52" / 13.2 mm guns (4x2 guns), 0.07lbs / 0.03kg shells, 1928 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 42 lbs / 19 kg
Shells per gun, main battery: 200
8 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.31" / 8 mm 0.31" / 8 mm -
2nd: 0.31" / 8 mm - -
3rd: 0.31" / 8 mm - -

Machinery:
Coal fired boilers, steam turbines,
Geared drive, 2 shafts, 2,968 shp / 2,214 Kw = 18.00 kts
Range 5,500nm at 10.00 kts
Bunker at max displacement = 205 tons (100% coal)

Complement:
106 - 138

Cost:
£0.290 million / $1.159 million

Distribution of weights at normal displacement:
Armament: 5 tons, 0.4 %
Armour: 1 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 93 tons, 7.3 %
Hull, fittings & equipment: 859 tons, 67.5 %
Fuel, ammunition & stores: 145 tons, 11.4 %
Miscellaneous weights: 170 tons, 13.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
6,910 lbs / 3,134 Kg = 195.6 x 4.1 " / 105 mm shells or 2.6 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 1.9 ft / 0.6 m
Roll period: 14.0 seconds
Steadiness - As gun platform (Average = 50 %): 83 %
- Recoil effect (Restricted arc if above 1.00): 0.04
Seaboat quality (Average = 1.00): 1.65

Hull form characteristics:
Hull has raised forecastle, rise forward of midbreak
and transom stern
Block coefficient: 0.460
Length to Beam Ratio: 7.00 : 1
'Natural speed' for length: 21.21 kts
Power going to wave formation at top speed: 40 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 18.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.75 ft / 6.02 m
- Forecastle (20 %): 19.75 ft / 6.02 m (19.72 ft / 6.01 m aft of break)
- Mid (50 %): 19.72 ft / 6.01 m (11.71 ft / 3.57 m aft of break)
- Quarterdeck (15 %): 11.71 ft / 3.57 m
- Stern: 11.71 ft / 3.57 m
- Average freeboard: 15.72 ft / 4.79 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 42.8 %
- Above water (accommodation/working, high = better): 171.2 %
Waterplane Area: 9,869 Square feet or 917 Square metres
Displacement factor (Displacement / loading): 319 %
Structure weight / hull surface area: 63 lbs/sq ft or 307 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.11
- Longitudinal: 2.85
- Overall: 1.22
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

Designed primarily as a North Sea fisheries protection vessel, but also as coastal patrol.

Fitted with hydrophones and 4 DC throwers on the fantail (50t), as well as extra accommodations to allow some use as a training ship (100t), and some design slack for future growth (comp hull & 50t).

The 105mm and 37mm are by FRC (Fonderie Royale de Cannons), while the FN 13.2mm is the same as developed by Browning for the Netherlands.

Public information : 2,000tons, 90m x 11.5m, x 4m, 4 x 120mm, 27knts

Class Names :
Numbered PC-1, PC-2, etc.

PC-22-A2, Belgium Escort laid down 1935

Displacement:
1,874 t light; 1,953 t standard; 2,277 t normal; 2,537 t full load

Dimensions: Length overall / water x beam x draught
303.84 ft / 295.28 ft x 37.40 ft x 13.12 ft (normal load)
92.61 m / 90.00 m x 11.40 m x 4.00 m

Armament:
4 - 4.70" / 119 mm guns in single mounts, 51.91lbs / 23.55kg shells, 1935 Model
Breech loading guns in deck mounts
on centreline, all forward, 2 raised mounts - superfiring
4 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, all amidships
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1930 Model
Dual purpose guns in deck mounts
on side, all aft, 1 raised mount - superfiring
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1927 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 2 raised mounts
Weight of broadside 273 lbs / 124 kg
Shells per gun, main battery: 200

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.76" / 70 mm 190.29 ft / 58.00 m 7.22 ft / 2.20 m
Ends: 0.59" / 15 mm 65.62 ft / 20.00 m 7.22 ft / 2.20 m
39.37 ft / 12.00 m Unarmoured ends
Upper: 1.18" / 30 mm 190.29 ft / 58.00 m 6.56 ft / 2.00 m
Main Belt covers 99 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.57" / 40 mm 0.98" / 25 mm -
2nd: 0.98" / 25 mm 0.59" / 15 mm -
3rd: 0.59" / 15 mm - -
4th: 0.39" / 10 mm - -

- Armour deck: 1.18" / 30 mm, Conning tower: 3.15" / 80 mm

Machinery:
Coal and oil fired boilers, steam turbines,
Geared drive, 2 shafts, 16,082 shp / 11,997 Kw = 24.38 kts
Range 8,000nm at 12.00 kts
Bunker at max displacement = 584 tons (90% coal)

Complement:
164 - 214

Cost:
£0.835 million / $3.339 million

Distribution of weights at normal displacement:
Armament: 34 tons, 1.5 %
Armour: 442 tons, 19.4 %
- Belts: 235 tons, 10.3 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 26 tons, 1.2 %
- Armour Deck: 168 tons, 7.4 %
- Conning Tower: 12 tons, 0.5 %
Machinery: 498 tons, 21.8 %
Hull, fittings & equipment: 801 tons, 35.2 %
Fuel, ammunition & stores: 403 tons, 17.7 %
Miscellaneous weights: 100 tons, 4.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3,574 lbs / 1,621 Kg = 68.8 x 4.7 " / 119 mm shells or 1.0 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 1.5 ft / 0.4 m
Roll period: 12.9 seconds
Steadiness - As gun platform (Average = 50 %): 73 %
- Recoil effect (Restricted arc if above 1.00): 0.24
Seaboat quality (Average = 1.00): 1.31

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 7.89 : 1
'Natural speed' for length: 17.18 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 56
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.03 ft / 5.80 m
- Forecastle (20 %): 17.06 ft / 5.20 m
- Mid (75 %): 17.06 ft / 5.20 m
- Quarterdeck (15 %): 9.19 ft / 2.80 m
- Stern: 9.19 ft / 2.80 m
- Average freeboard: 15.64 ft / 4.77 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 88.3 %
- Above water (accommodation/working, high = better): 147.3 %
Waterplane Area: 7,707 Square feet or 716 Square metres
Displacement factor (Displacement / loading): 126 %
Structure weight / hull surface area: 56 lbs/sq ft or 274 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.88
- Longitudinal: 3.55
- Overall: 1.01
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

10% license fee to SAE per unit.

4.7" guns are Vickers ordered from England, 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

Edit : 2/7/12 : The miscellaneous weight is meant to represent sonar, k-guns and depth charges, and early (1937ish Dutch) radar.

Public information : 1040tons, 77.8m x 10 m x 3.4m
2x 3", 16knts

Class Names :
SC Zinnia

Zinnia (ex-HMS Zinnia)

British Flower-class Sloop laid down 1915, refitted Q4 1935

Displacement:
1,011 t light; 1,037 t standard; 1,203 t normal; 1,336 t full load

Dimensions: Length overall / water x beam x draught
255.00 ft / 255.00 ft x 33.00 ft x 11.00 ft (normal load)
77.72 m / 77.72 m x 10.06 m x 3.35 m

Armament:
2 - 3.00" / 75 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1934 Model Bourges-FRC Semi-auto
Quick firing guns in deck mounts
on centreline ends, evenly spread
1 - 0.30" / 7.65 mm guns in single mounts, 0.01lbs / 0.01kg shells, 1930 Model
Machine gun in deck mount
on centreline amidships, 1 raised gun

Weight of broadside 24 lbs / 11 kg
Shells per gun, main battery: 150

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 1 shaft, 2,000 ihp / 1,492 Kw = 15.87 kts
Range 2,000nm at 15.00 kts (Bunkerage = 299 tons)

Complement:
101 - 132

Cost:
£0.082 million / $0.329 million

Distribution of weights at normal displacement:
Armament: 3 tons, 0.3 %
Machinery: 131 tons, 10.9 %
Hull, fittings & equipment: 776 tons, 64.5 %
Fuel, ammunition & stores: 192 tons, 16.0 %
Miscellaneous weights: 100 tons, 8.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3,258 lbs / 1,478 Kg = 241.3 x 3.0 " / 76 mm shells or 1.6 torpedoes
Stability (Unstable if below 1.00): 1.19
Metacentric height 1.3 ft / 0.4 m
Roll period: 12.1 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.455
Length to Beam Ratio: 7.73 : 1
'Natural speed' for length: 15.97 kts
Power going to wave formation at top speed: 42 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 15.00 ft / 4.57 m
- Forecastle (15 %): 15.00 ft / 4.57 m
- Mid (20 %): 15.00 ft / 4.57 m (11.00 ft / 3.35 m aft of break)
- Quarterdeck (15 %): 11.00 ft / 3.35 m
- Stern: 11.00 ft / 3.35 m
- Average freeboard: 11.80 ft / 3.60 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 47.8 %
- Above water (accommodation/working, high = better): 109.4 %
Waterplane Area: 5,140 Square feet or 477 Square metres
Displacement factor (Displacement / loading): 309 %
Structure weight / hull surface area: 86 lbs/sq ft or 421 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.86
- Longitudinal: 4.72
- Overall: 2.04
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
Excellent seaboat, comfortable, can fire her guns in the heaviest weather'

edit : 2/7/12 : Misc weight is intended to represent rescue gear, additional boats and additional training/inspector berths.

Public information : 2,500 tons, 123m x 13 m x 3.5m
5x 4.7"mm, 8xTT 36knts

Class Names :
DD-1 Les Quatre Journées

DD-1 Les Quatre Journées, Belgium Destroyer laid down 1939

Displacement:
2,135 t light; 2,232 t standard; 2,479 t normal; 2,677 t full load

Dimensions: Length overall / water x beam x draught
402.54 ft / 393.70 ft x 42.65 ft x 11.48 ft (normal load)
122.69 m / 120.00 m x 13.00 m x 3.50 m

Armament:
5 - 4.70" / 119 mm guns in single mounts, 51.91lbs / 23.55kg shells, 1939 Model
Dual purpose guns in deck mounts
on centreline ends, majority forward, 2 raised mounts - superfiring
16 - 1.46" / 37.0 mm guns (8x2 guns), 1.55lbs / 0.70kg shells, 1939 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1939 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 286 lbs / 130 kg
Shells per gun, main battery: 280
8 - 21.0" / 533.4 mm above water torpedoes

Machinery:
Coal and oil fired boilers, steam turbines,
Geared drive, 2 shafts, 51,398 shp / 38,343 Kw = 35.00 kts
Range 5,500nm at 14.00 kts
Bunker at max displacement = 445 tons (25% coal)

Complement:
175 - 228

Cost:
£1.624 million / $6.494 million

Distribution of weights at normal displacement:
Armament: 36 tons, 1.4 %
Machinery: 1,245 tons, 50.2 %
Hull, fittings & equipment: 754 tons, 30.4 %
Fuel, ammunition & stores: 344 tons, 13.9 %
Miscellaneous weights: 100 tons, 4.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
892 lbs / 405 Kg = 17.2 x 4.7 " / 119 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.47
Metacentric height 2.7 ft / 0.8 m
Roll period: 10.9 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.12
Seaboat quality (Average = 1.00): 1.02

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.450
Length to Beam Ratio: 9.23 : 1
'Natural speed' for length: 22.94 kts
Power going to wave formation at top speed: 69 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 22.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.88 ft / 6.67 m
- Forecastle (20 %): 21.88 ft / 6.67 m
- Mid (50 %): 21.88 ft / 6.67 m (14.53 ft / 4.43 m aft of break)
- Quarterdeck (15 %): 14.53 ft / 4.43 m
- Stern: 17.81 ft / 5.43 m
- Average freeboard: 18.45 ft / 5.63 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 178.5 %
- Above water (accommodation/working, high = better): 145.8 %
Waterplane Area: 11,126 Square feet or 1,034 Square metres
Displacement factor (Displacement / loading): 77 %
Structure weight / hull surface area: 37 lbs/sq ft or 182 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.08
- Overall: 0.57
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent

Edit : 2/7/12 : Misc weight is intended to represent Sonar, depth charges and early (1938ish Dutch) radar

DD-1 Les Quatre Journees Class, Belgium Destroyer laid down 1939 (Engine 1945)

Displacement:
2,115 t light; 2,203 t standard; 2,479 t normal; 2,700 t full load

Dimensions: Length overall / water x beam x draught
403.38 ft / 393.70 ft x 42.65 ft x 11.48 ft (normal load)
122.95 m / 120.00 m x 13.00 m x 3.50 m

Armament:
6 - 4.70" / 119 mm guns (3x2 guns), 51.91lbs / 23.55kg shells, 1935 Model
Dual purpose guns in deck mounts
on centreline ends, majority aft, 1 raised mount aft - superfiring
10 - 1.46" / 37.0 mm guns (5x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
8 - 0.91" / 23.0 mm guns (4x2 guns), 0.44lbs / 0.20kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 330 lbs / 150 kg
Shells per gun, main battery: 200
8 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.38" / 35 mm 0.59" / 15 mm -
2nd: 0.39" / 10 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 51,400 shp / 38,345 Kw = 35.00 kts
Range 6,000nm at 15.00 kts
Bunker at max displacement = 496 tons

Complement:
175 - 228

Cost:
£1.582 million / $6.329 million

Distribution of weights at normal displacement:
Armament: 41 tons, 1.7 %
Armour: 19 tons, 0.8 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 19 tons, 0.8 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,166 tons, 47.0 %
Hull, fittings & equipment: 769 tons, 31.0 %
Fuel, ammunition & stores: 364 tons, 14.7 %
Miscellaneous weights: 120 tons, 4.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
970 lbs / 440 Kg = 18.7 x 4.7 " / 119 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.43
Metacentric height 2.6 ft / 0.8 m
Roll period: 11.1 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.14
Seaboat quality (Average = 1.00): 1.03

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.450
Length to Beam Ratio: 9.23 : 1
'Natural speed' for length: 22.94 kts
Power going to wave formation at top speed: 69 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 22.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23.95 ft / 7.30 m
- Forecastle (20 %): 21.88 ft / 6.67 m
- Mid (50 %): 21.88 ft / 6.67 m (14.53 ft / 4.43 m aft of break)
- Quarterdeck (15 %): 14.53 ft / 4.43 m
- Stern: 17.81 ft / 5.43 m
- Average freeboard: 18.62 ft / 5.68 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 170.4 %
- Above water (accommodation/working, high = better): 145.8 %
Waterplane Area: 11,126 Square feet or 1,034 Square metres
Displacement factor (Displacement / loading): 81 %
Structure weight / hull surface area: 38 lbs/sq ft or 184 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.17
- Overall: 0.58
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent

Refit Changes
Replacement of five single 4.7in mounts with three twin mounts (A, X, Y positions)
Replacement of 37mm mounts with improved Schneider 37mm in Dutch Hazemeyer IV twin mounts (1 in B position)
Replacement of coal/oil-fired machinery with new all-oil powerplant
Conversion of bunkers to oil
Refurbishment of internal fittings for life extension
Increase in sheer forward along the forecastle to the stem to improve dryness
Addition of one surface search and one gunnery RDF set (Dutch)
New ASDIC set fitted
2x racks and 2x DCT for 30 DCs


Note: DD-10 Verviers, DD-11 Veurne, DD-12 Stavelot, DD-13 Rochefort, DD-14 Nieupoort, DD-15 Koksijde, DD-16 Mechelen, DD-17 Spa and DD-18 Heist transferred to the Netherlands Q1/1945.

Active Belgian vessels are: DD-1 Les Quatre Journées, DD-2 Van Haverbeke, DD-3 A.F. Dufour, DD-4 Breydel, DD-5 De Brouwer, DD-6 Georges Truffaut, DD-7 Francois Bovesse, DD-8 Prince Leopold and DD-9 Prince Charles

Zinnia, Belgium Fishery Protection Vessel laid down 1945

Displacement:
1,275 t light; 1,358 t standard; 1,546 t normal; 1,696 t full load

Dimensions: Length overall / water x beam x draught
286.63 ft / 278.87 ft x 34.45 ft x 10.73 ft (normal load)
87.37 m / 85.00 m x 10.50 m x 3.27 m

Armament:
4 - 4.70" / 119 mm guns (2x2 guns), 51.91lbs / 23.55kg shells, 1935 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on centreline ends, evenly spread, all raised mounts
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
8 - 0.91" / 23.0 mm guns (2x4 guns), 0.44lbs / 0.20kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts
Weight of broadside 224 lbs / 101 kg
Shells per gun, main battery: 400

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

- Conning tower: 0.98" / 25 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 24,000 shp / 17,904 Kw = 28.23 kts
Range 8,500nm at 12.00 kts
Bunker at max displacement = 338 tons

Complement:
123 - 160

Cost:
£1.035 million / $4.142 million

Distribution of weights at normal displacement:
Armament: 28 tons, 1.8 %
Armour: 14 tons, 0.9 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 11 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 3 tons, 0.2 %
Machinery: 585 tons, 37.8 %
Hull, fittings & equipment: 469 tons, 30.3 %
Fuel, ammunition & stores: 271 tons, 17.5 %
Miscellaneous weights: 180 tons, 11.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
702 lbs / 319 Kg = 13.5 x 4.7 " / 119 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.20
Metacentric height 1.4 ft / 0.4 m
Roll period: 12.1 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0.42
Seaboat quality (Average = 1.00): 1.11

Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.525
Length to Beam Ratio: 8.10 : 1
'Natural speed' for length: 16.70 kts
Power going to wave formation at top speed: 71 %
Trim (Max stability = 0, Max steadiness = 100): 47
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: 21.33 ft / 6.50 m
- Forecastle (20 %): 18.04 ft / 5.50 m
- Mid (50 %): 16.90 ft / 5.15 m
- Quarterdeck (15 %): 9.84 ft / 3.00 m (16.90 ft / 5.15 m before break)
- Stern: 9.84 ft / 3.00 m
- Average freeboard: 16.50 ft / 5.03 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 151.1 %
- Above water (accommodation/working, high = better): 174.1 %
Waterplane Area: 6,550 Square feet or 608 Square metres
Displacement factor (Displacement / loading): 95 %
Structure weight / hull surface area: 35 lbs/sq ft or 171 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 3.67
- Overall: 0.61
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent

Misc Weight
10 tons for aerial/surface search RDF set
20 tons for ASDIC
42 tons for 2x DC racks and 4x DCT for 48x DCs
8 tons for Hazemeyer IV mounts
50 tons for improved habitability
50 tons for growth

Ships in Class: Zinnia and Godetia [planned to lay down Q1/46]

Spa Class, Belgium Escort laid down 1947

Displacement:
1,204 t light; 1,263 t standard; 1,546 t normal; 1,772 t full load

Dimensions: Length overall / water x beam x draught
286.63 ft / 278.87 ft x 34.45 ft x 10.73 ft (normal load)
87.37 m / 85.00 m x 10.50 m x 3.27 m

Armament:
4 - 3.54" / 90.0 mm guns (2x2 guns), 24.25lbs / 11.00kg shells, 1947 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, evenly spread
2 - 1.46" / 37.0 mm guns (1x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
4 - 0.91" / 23.0 mm guns (2x2 guns), 0.37lbs / 0.17kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts
Weight of broadside 108 lbs / 49 kg
Shells per gun, main battery: 450

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

- Conning tower: 0.98" / 25 mm

Machinery:
Oil fired boilers, steam turbines,
Electric motors, 2 shafts, 22,500 shp / 16,785 Kw = 27.82 kts
Range 7,500nm at 15.00 kts
Bunker at max displacement = 509 tons

Complement:
123 - 160

Cost:
£0.962 million / $3.848 million

Distribution of weights at normal displacement:
Armament: 15 tons, 1.0 %
Armour: 11 tons, 0.7 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 8 tons, 0.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 3 tons, 0.2 %
Machinery: 556 tons, 36.0 %
Hull, fittings & equipment: 437 tons, 28.3 %
Fuel, ammunition & stores: 342 tons, 22.1 %
Miscellaneous weights: 185 tons, 12.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
879 lbs / 399 Kg = 39.5 x 3.5 " / 90 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.30
Metacentric height 1.6 ft / 0.5 m
Roll period: 11.4 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.19
Seaboat quality (Average = 1.00): 1.24

Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.525
Length to Beam Ratio: 8.10 : 1
'Natural speed' for length: 16.70 kts
Power going to wave formation at top speed: 70 %
Trim (Max stability = 0, Max steadiness = 100): 40
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: 21.33 ft / 6.50 m
- Forecastle (20 %): 18.70 ft / 5.70 m
- Mid (50 %): 17.22 ft / 5.25 m
- Quarterdeck (15 %): 9.84 ft / 3.00 m (17.22 ft / 5.25 m before break)
- Stern: 9.84 ft / 3.00 m
- Average freeboard: 16.84 ft / 5.13 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 138.1 %
- Above water (accommodation/working, high = better): 178.2 %
Waterplane Area: 6,550 Square feet or 608 Square metres
Displacement factor (Displacement / loading): 108 %
Structure weight / hull surface area: 32 lbs/sq ft or 157 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 3.74
- Overall: 0.61
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily

Misc Weight
5 tons for Signaal M1946 surface search RDF set
20 tons for two ASDIC sets
22 tons for Hedgehog and ammunition
20 tons for 2x DC racks and 2x DCT for 36x DCs
8 tons for Hazemeyer IV mounts
8 tons for automatic 90mm mounts
50 tons for improved habitability
50 tons for growth

Artevelde, Belgium Training Sloop laid down 1935 (Engine 1946)

Displacement:
1,141 t light; 1,172 t standard; 1,274 t normal; 1,355 t full load

Dimensions: Length overall / water x beam x draught
331.22 ft / 321.52 ft x 45.93 ft x 6.56 ft (normal load)
100.96 m / 98.00 m x 14.00 m x 2.00 m

Armament:
1 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1935 Model
Quick firing gun in deck mount
on centreline forward
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, all amidships
8 - 0.91" / 23.0 mm guns (4x2 guns), 0.37lbs / 0.17kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 44 lbs / 20 kg
Shells per gun, main battery: 200
8 - 21.0" / 533.4 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 0.39" / 10 mm -
3rd: 0.39" / 10 mm 0.20" / 5 mm -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 2,968 shp / 2,214 Kw = 18.00 kts
Range 7,500nm at 10.00 kts
Bunker at max displacement = 182 tons

Complement:
106 - 138

Cost:
£0.280 million / $1.120 million

Distribution of weights at normal displacement:
Armament: 6 tons, 0.4 %
Armour: 5 tons, 0.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 5 tons, 0.4 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 74 tons, 5.8 %
Hull, fittings & equipment: 827 tons, 64.9 %
Fuel, ammunition & stores: 133 tons, 10.4 %
Miscellaneous weights: 230 tons, 18.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
6,960 lbs / 3,157 Kg = 197.0 x 4.1 " / 105 mm shells or 2.5 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 2.0 ft / 0.6 m
Roll period: 13.5 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 1.66

Hull form characteristics:
Hull has raised forecastle, rise forward of midbreak
and transom stern
Block coefficient: 0.460
Length to Beam Ratio: 7.00 : 1
'Natural speed' for length: 21.21 kts
Power going to wave formation at top speed: 40 %
Trim (Max stability = 0, Max steadiness = 100): 43
Bow angle (Positive = bow angles forward): 18.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.75 ft / 6.02 m
- Forecastle (20 %): 19.75 ft / 6.02 m (19.72 ft / 6.01 m aft of break)
- Mid (50 %): 19.72 ft / 6.01 m (11.71 ft / 3.57 m aft of break)
- Quarterdeck (15 %): 11.71 ft / 3.57 m
- Stern: 11.71 ft / 3.57 m
- Average freeboard: 15.72 ft / 4.79 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 43.4 %
- Above water (accommodation/working, high = better): 171.2 %
Waterplane Area: 9,869 Square feet or 917 Square metres
Displacement factor (Displacement / loading): 298 %
Structure weight / hull surface area: 60 lbs/sq ft or 295 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.09
- Longitudinal: 2.74
- Overall: 1.20
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

Designed primarily as a North Sea fisheries protection vessel, but also as coastal patrol.

Fitted with hydrophones and 4 DC throwers on the fantail (50t), as well as extra accomodations to allow some use as a training ship (100t) and some design slack for future growth (comp hull & 50 t)

Refit Notes
Conversion to oil-firing with new boilers
Modernisation of 37mm mounts with newer pattern mounts with Hazemyer IV
Replacement of 13.2mm HMG with 23mm FN-Madsen twin mounts
New ASDIC and passive hydrophones
New Signaal M1946 surface-search RDF set
Refurbishment of internal fittings for life extension
Extra 50 tons misc weight set aside for additional classrooms aft