WesWorld

UJ1-UJ12 , ASW Launch laid down 1926, UJ6 and UJ8 sunk 04-03-35 (gunfire), UJ11 sunk 13-12-34 (gunfire), UJ4 and UJ9 sunk 22-05-35 (torpedo), UJ12 sunk 10-08-35 (bomb), remaining units retired 31-12-41 and scrapped in 1942
UJ13-UJ24 , ASW Launch laid down 1927, UJ23 sunk 07-06-35 (torpedo), UJ19 sunk 11-10-35 (bomb), UJ15 sunk 23-11-35 (bomb), remaining units retired 31-12-42 and scrapped in 1943
UJ25-UJ36 , ASW Launch laid down 1928, UJ35 sunk 14-07-35 (bomb), UJ30 sunk 18-09-35 (ramming), UJ32 sunk 22-09-35 (bomb), UJ27 cancelled 30-10-35 (mine, constructive loss), UJ33 sunk 27-01-36 (mine), UJ25, UJ26 and UJ28 retired 31-12-42 and scrapped in 1943
UJ37-UJ48 , ASW Launch laid down 1929



Displacement:
195 t light; 201 t standard (200 t officially); 220 t normal; 236 t full load

Dimensions: Length overall / water x beam x draught
137,68 ft / 131,23 ft x 19,03 ft x 6,56 ft (normal load)
41,97 m / 40,00 m x 5,80 m x 2,00 m

Armament:
2 - 1,57" / 40,0 mm guns (1x2 guns), 1,95lbs / 0,89kg shells, 1926 Model
Anti-aircraft guns in deck mount
on centreline forward
4 - 0,79" / 20,0 mm guns (3 mounts), 0,24lbs / 0,11kg shells, 1926 Model
Anti-aircraft guns in deck mounts
on side, all amidships
Weight of broadside 5 lbs / 2 kg
Shells per gun, main battery: 500

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0,59" / 15 mm - -
2nd: 0,39" / 10 mm - -

Machinery:
Diesel Internal combustion generators,
Electric motors (UJ1-6), Geared (UJ7+), 2 shafts, 2.413 shp / 1.800 Kw = 19,95 kts
Range 3.400nm at 10,00 kts (Bunkerage = 35 tons)

Complement:
28 - 37

Cost:
£0,063 million / $0,251 million

Distribution of weights at normal displacement:
Armament: 1 tons, 0,3%
Armour: 1 tons, 0,2%
- Belts: 0 tons, 0,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 1 tons, 0,2%
- Armour Deck: 0 tons, 0,0%
- Conning Tower: 0 tons, 0,0%
Machinery: 77 tons, 35,1%
Hull, fittings & equipment: 100 tons, 45,5%
Fuel, ammunition & stores: 25 tons, 11,6%
Miscellaneous weights: 16 tons, 7,3%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
230 lbs / 104 Kg = 117,8 x 1,6 " / 40 mm shells or 0,2 torpedoes
Stability (Unstable if below 1.00): 1,13
Metacentric height 0,5 ft / 0,2 m
Roll period: 11,1 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0,04
Seaboat quality (Average = 1.00): 1,73

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,470
Length to Beam Ratio: 6,90 : 1
'Natural speed' for length: 11,46 kts
Power going to wave formation at top speed: 72 %
Trim (Max stability = 0, Max steadiness = 100): 30
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: 17,72 ft / 5,40 m
- Forecastle (20%): 15,75 ft / 4,80 m
- Mid (50%): 15,75 ft / 4,80 m (7,87 ft / 2,40 m aft of break)
- Quarterdeck (15%): 7,87 ft / 2,40 m
- Stern: 7,87 ft / 2,40 m
- Average freeboard: 11,97 ft / 3,65 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 124,6%
- Above water (accommodation/working, high = better): 126,8%
Waterplane Area: 1.620 Square feet or 151 Square metres
Displacement factor (Displacement / loading): 125%
Structure weight / hull surface area: 22 lbs/sq ft or 108 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,64
- Longitudinal: 19,10
- Overall: 0,89
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

R1-R6 , laid down 1928, scrapped 1942
R7-R24 , laid down 1929, R19 & R20 sunk 17-9-34 (gunfire), R14 sunk 14-11-34 (collision), R15 sunk 06-04-35 (gunfire), R22 sunk 06-05-35 (plane), R18 sunk 29-10-35 (gunfire), R16 sunk 05-01-36 (gunfire), R23 sunk 22-02-36 (gunfire), remaining units scrapped in 1943
R25-R48 , laid down 1930, R31 sunk 02-10-35 (fire), R34 lost 13-11-35 (fire), R30 sunk 04-12-35 (gunfire), R26 sunk 26-03-36 (mine), R25 & R27 scrapped 1943




Displacement:
92 t light; 94 t standard (95 t officially); 102 t normal; 108 t full load

Dimensions: Length overall / water x beam x draught
108,93 ft / 104,99 ft x 16,40 ft x 5,74 ft (normal load)
33,20 m / 32,00 m x 5,00 m x 1,75 m

Armament:
1 - 0,79" / 20,0 mm guns in single mounts, 0,24lbs / 0,11kg shells, 1928 Model
Anti-aircraft gun in deck mount
on centreline forward
Weight of broadside 0 lbs / 0 kg
Shells per gun, main battery: 2.000

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0,39" / 10 mm 0,39" / 10 mm -

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 2.145 shp / 1.600 Kw = 21,35 kts
Range 2.000nm at 10,00 kts
Bunker at max displacement = 13 tons

Complement:
15 - 20

Cost:
£0,039 million / $0,155 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0,0%
Armour: 0 tons, 0,2%
- Belts: 0 tons, 0,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 0 tons, 0,2%
- Armour Deck: 0 tons, 0,0%
- Conning Tower: 0 tons, 0,0%
Machinery: 49 tons, 48,4%
Hull, fittings & equipment: 33 tons, 32,2%
Fuel, ammunition & stores: 10 tons, 9,4%
Miscellaneous weights: 10 tons, 9,8%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
40 lbs / 18 Kg = 162,0 x 0,8 " / 20 mm shells or 0,1 torpedoes
Stability (Unstable if below 1.00): 1,13
Metacentric height 0,4 ft / 0,1 m
Roll period: 10,6 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0,00
Seaboat quality (Average = 1.00): 0,80

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,360
Length to Beam Ratio: 6,40 : 1
'Natural speed' for length: 10,25 kts
Power going to wave formation at top speed: 76 %
Trim (Max stability = 0, Max steadiness = 100): 62
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: 10,83 ft / 3,30 m
- Forecastle (20%): 8,04 ft / 2,45 m
- Mid (50%): 7,22 ft / 2,20 m
- Quarterdeck (15%): 7,22 ft / 2,20 m
- Stern: 7,22 ft / 2,20 m
- Average freeboard: 7,73 ft / 2,36 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 167,4%
- Above water (accommodation/working, high = better): 98,3%
Waterplane Area: 1.045 Square feet or 97 Square metres
Displacement factor (Displacement / loading): 71%
Structure weight / hull surface area: 15 lbs/sq ft or 72 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,50
- Longitudinal: 6,90
- Overall: 0,65
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

UJ49 - UJ60 , laid down 1930. UJ51 sunk 06-02-35 (bomb), UJ58 sunk 23-06-35 (plane), UJ55 sunk 14-12-35 (mine), UJ59 sunk 08-01-36 (plane), UJ56 cancelled 10-01-36 (mine, constructive loss)
UJ61 - UJ68 , laid down 1931
UJ69 - UJ76 , laid down 1932
UJ77 - UJ84 , laid down 1933



Displacement:
196 t light; 204 t standard (200 t officially); 231 t normal; 253 t full load

Dimensions: Length overall / water x beam x draught
144,24 ft / 137,80 ft x 19,03 ft x 6,56 ft (normal load)
43,97 m / 42,00 m x 5,80 m x 2,00 m

Armament:
1 - 3,46" / 88,0 mm guns in single mounts, 20,79lbs / 9,43kg shells, 1930 Model
Breech loading gun in deck mount
on centreline aft
2 - 1,57" / 40,0 mm guns (1x2 guns), 1,95lbs / 0,88kg shells, 1930 Model
Anti-aircraft guns in deck mount
on centreline forward
2 - 0,79" / 20,0 mm guns in single mounts, 0,24lbs / 0,11kg shells, 1930 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 25 lbs / 11 kg
Shells per gun, main battery: 200

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0,79" / 20 mm - -
2nd: 0,59" / 15 mm - -
3rd: 0,39" / 10 mm - -

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 2.392 shp / 1.784 Kw = 19,95 kts
Range 3.000nm at 12,00 kts
Bunker at max displacement = 48 tons

Complement:
29 - 38

Cost:
£0,082 million / $0,329 million

Distribution of weights at normal displacement:
Armament: 3 tons, 1,4%
Armour: 2 tons, 0,8%
- Belts: 0 tons, 0,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 2 tons, 0,8%
- Armour Deck: 0 tons, 0,0%
- Conning Tower: 0 tons, 0,0%
Machinery: 72 tons, 31,4%
Hull, fittings & equipment: 94 tons, 40,7%
Fuel, ammunition & stores: 35 tons, 15,0%
Miscellaneous weights: 25 tons, 10,8%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
209 lbs / 95 Kg = 10,0 x 3,5 " / 88 mm shells or 0,2 torpedoes
Stability (Unstable if below 1.00): 1,14
Metacentric height 0,5 ft / 0,2 m
Roll period: 10,9 seconds
Steadiness - As gun platform (Average = 50 %): 55 %
- Recoil effect (Restricted arc if above 1.00): 0,20
Seaboat quality (Average = 1.00): 1,90

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,470
Length to Beam Ratio: 7,24 : 1
'Natural speed' for length: 11,74 kts
Power going to wave formation at top speed: 70 %
Trim (Max stability = 0, Max steadiness = 100): 29
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: 17,72 ft / 5,40 m
- Forecastle (20%): 15,75 ft / 4,80 m
- Mid (50%): 15,75 ft / 4,80 m (7,87 ft / 2,40 m aft of break)
- Quarterdeck (15%): 7,87 ft / 2,40 m
- Stern: 7,87 ft / 2,40 m
- Average freeboard: 11,97 ft / 3,65 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 124,5%
- Above water (accommodation/working, high = better): 128,6%
Waterplane Area: 1.701 Square feet or 158 Square metres
Displacement factor (Displacement / loading): 117%
Structure weight / hull surface area: 20 lbs/sq ft or 96 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,55
- Longitudinal: 15,47
- Overall: 0,77
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

R49-R64 , laid down 1931
R65-R72 , laid down 1932, R66 sunk 04-11-35 (gunfire)



Displacement:
97 t light; 102 t standard (100 t officially); 108 t normal; 114 t full load

Dimensions: Length overall / water x beam x draught
110,81 ft / 106,63 ft x 16,73 ft x 5,91 ft (normal load)
33,77 m / 32,50 m x 5,10 m x 1,80 m

Armament:
1 - 1,57" / 40,0 mm guns in single mounts, 1,95lbs / 0,88kg shells, 1931 Model
Anti-aircraft gun in deck mount
on centreline aft
1 - 0,79" / 20,0 mm guns in single mounts, 0,24lbs / 0,11kg shells, 1931 Model
Breech loading gun in deck mount
on centreline forward
Weight of broadside 2 lbs / 1 kg
Shells per gun, main battery: 2.000

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0,59" / 15 mm - -
2nd: 0,39" / 10 mm - -

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 1.800 shp / 1.343 Kw = 21,73 kts
Range 2.000nm at 10,00 kts
Bunker at max displacement = 12 tons

Complement:
16 - 21

Cost:
£0,046 million / $0,183 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0,3%
Armour: 0 tons, 0,3%
- Belts: 0 tons, 0,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 0 tons, 0,3%
- Armour Deck: 0 tons, 0,0%
- Conning Tower: 0 tons, 0,0%
Machinery: 49 tons, 45,4%
Hull, fittings & equipment: 37 tons, 34,3%
Fuel, ammunition & stores: 11 tons, 10,6%
Miscellaneous weights: 10 tons, 9,2%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
50 lbs / 23 Kg = 25,5 x 1,6 " / 40 mm shells or 0,1 torpedoes
Stability (Unstable if below 1.00): 1,10
Metacentric height 0,4 ft / 0,1 m
Roll period: 11,0 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0,02
Seaboat quality (Average = 1.00): 0,81

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0,360
Length to Beam Ratio: 6,37 : 1
'Natural speed' for length: 12,57 kts
Power going to wave formation at top speed: 76 %
Trim (Max stability = 0, Max steadiness = 100): 63
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: 11,48 ft / 3,50 m
- Forecastle (20%): 8,53 ft / 2,60 m
- Mid (50%): 8,53 ft / 2,60 m (7,22 ft / 2,20 m aft of break)
- Quarterdeck (15%): 7,22 ft / 2,20 m
- Stern: 7,22 ft / 2,20 m
- Average freeboard: 8,11 ft / 2,47 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 161,2%
- Above water (accommodation/working, high = better): 104,6%
Waterplane Area: 1.123 Square feet or 104 Square metres
Displacement factor (Displacement / loading): 90%
Structure weight / hull surface area: 16 lbs/sq ft or 76 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,52
- Longitudinal: 7,99
- Overall: 0,69
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

S1-S12 , laid down 1934, S11 sunk 30-09-35 (bomb), S10 sunk 12-10-35 (gunfire), S1 sunk 28-11-35 (gunfire), S6 sunk 22-02-36 (gunfire)
S13-S30 , laid down 1935

Displacement: 60 ts standard
Dimensions: 27,94 m / 27,7 m x 4,46 m x 1,45 m
Armament: 1 - 20 mm gun, 2 torpedoes
Machinery: Diesel Internal combustion motors
Speed: 33,8 kn
Complement: 14
Cost: £0,039 million / $0,155 million

[The S34 actually is a copy of OTL Lürssen Boats S2-S5 which were historically laid down 1931/32. So I´m behind OTL 2 years! ;o) I use this design because SS can´t deal with light fast attack crafts.]

Viktor Garcia, laid down 1935
Diogo Ferreira, laid down 1935
Miguel da Costa, laid down 1935
Jorge Alves, laid down 1935



Displacement:
123 t light; 132 t standard; 141 t normal; 149 t full load

Dimensions: Length overall / water x beam x draught
132,74 ft / 131,23 ft x 22,97 ft x 3,28 ft (normal load)
40,46 m / 40,00 m x 7,00 m x 1,00 m

Armament:
2 - 3,46" / 88,0 mm guns in single mounts, 20,79lbs / 9,43kg shells, 1935 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread, 1 raised mount
4 - 0,79" / 20,0 mm guns in single mounts, 0,24lbs / 0,11kg shells, 1935 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 43 lbs / 19 kg
Shells per gun, main battery: 250

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1,18" / 30 mm 98,43 ft / 30,00 m 3,94 ft / 1,20 m
Ends: Unarmoured
Main Belt covers 115% of normal length
Main belt does not fully cover magazines and engineering spaces

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,38" / 35 mm 0,98" / 25 mm -
2nd: 0,39" / 10 mm - -

- Conning tower: 0,79" / 20 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 1 shaft, 600 ihp / 448 Kw = 15,01 kts
Range 2.000nm at 8,00 kts
Bunker at max displacement = 17 tons (100% coal)

Complement:
19 - 26

Cost:
£0,069 million / $0,277 million

Distribution of weights at normal displacement:
Armament: 5 tons, 3,8%
Armour: 26 tons, 18,2%
- Belts: 19 tons, 13,7%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 6 tons, 4,2%
- Armour Deck: 0 tons, 0,0%
- Conning Tower: 0 tons, 0,3%
Machinery: 35 tons, 24,5%
Hull, fittings & equipment: 47 tons, 33,6%
Fuel, ammunition & stores: 18 tons, 12,8%
Miscellaneous weights: 10 tons, 7,1%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
121 lbs / 55 Kg = 5,8 x 3,5 " / 88 mm shells or 0,2 torpedoes
Stability (Unstable if below 1.00): 1,29
Metacentric height 0,9 ft / 0,3 m
Roll period: 10,4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,11
Seaboat quality (Average = 1.00): 0,83

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,500
Length to Beam Ratio: 5,71 : 1
'Natural speed' for length: 11,46 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 84
Bow angle (Positive = bow angles forward): 10,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 8,53 ft / 2,60 m
- Forecastle (20%): 5,91 ft / 1,80 m
- Mid (50%): 4,92 ft / 1,50 m
- Quarterdeck (15%): 4,92 ft / 1,50 m
- Stern: 5,25 ft / 1,60 m
- Average freeboard: 5,50 ft / 1,68 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 118,0%
- Above water (accommodation/working, high = better): 99,6%
Waterplane Area: 1.930 Square feet or 179 Square metres
Displacement factor (Displacement / loading): 93%
Structure weight / hull surface area: 19 lbs/sq ft or 92 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,66
- Longitudinal: 1,24
- Overall: 0,70
Caution: Hull subject to strain in open-sea
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
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

UJ85 - UJ88 , laid down 1935
UJ89 - UJ108 , laid down 1936



Displacement:
196 t light; 202 t standard; 235 t normal; 261 t full load

Dimensions: Length overall / water x beam x draught
140,31 ft / 133,86 ft x 22,31 ft x 6,56 ft (normal load)
42,77 m / 40,80 m x 6,80 m x 2,00 m

Armament:
1 - 3,46" / 88,0 mm guns in single mounts, 20,79lbs / 9,43kg shells, 1935 Model
Breech loading gun in deck mount
on centreline forward
2 - 1,57" / 40,0 mm guns (1x2 guns), 1,95lbs / 0,88kg shells, 1935 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
2 - 0,79" / 20,0 mm guns in single mounts, 0,24lbs / 0,11kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 25 lbs / 11 kg
Shells per gun, main battery: 120

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,18" / 30 mm 0,59" / 15 mm -
2nd: 0,59" / 15 mm - -
3rd: 0,39" / 10 mm - -

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 2.681 shp / 2.000 Kw = 20,33 kts
Range 3.800nm at 12,00 kts
Bunker at max displacement = 59 tons

Complement:
29 - 39

Cost:
£0,103 million / $0,411 million

Distribution of weights at normal displacement:
Armament: 3 tons, 1,3%
Armour: 2 tons, 1,0%
- Belts: 0 tons, 0,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 2 tons, 1,0%
- Armour Deck: 0 tons, 0,0%
- Conning Tower: 0 tons, 0,0%
Machinery: 76 tons, 32,4%
Hull, fittings & equipment: 104 tons, 44,3%
Fuel, ammunition & stores: 39 tons, 16,7%
Miscellaneous weights: 10 tons, 4,3%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
239 lbs / 108 Kg = 11,5 x 3,5 " / 88 mm shells or 0,3 torpedoes
Stability (Unstable if below 1.00): 1,10
Metacentric height 0,6 ft / 0,2 m
Roll period: 11,7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,10
Seaboat quality (Average = 1.00): 1,13

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0,420
Length to Beam Ratio: 6,00 : 1
'Natural speed' for length: 11,57 kts
Power going to wave formation at top speed: 72 %
Trim (Max stability = 0, Max steadiness = 100): 62
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: 17,72 ft / 5,40 m
- Forecastle (35%): 13,12 ft / 4,00 m (7,87 ft / 2,40 m aft of break)
- Mid (50%): 7,87 ft / 2,40 m
- Quarterdeck (15%): 7,87 ft / 2,40 m
- Stern: 7,87 ft / 2,40 m
- Average freeboard: 10,35 ft / 3,16 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 120,0%
- Above water (accommodation/working, high = better): 96,3%
Waterplane Area: 1.862 Square feet or 173 Square metres
Displacement factor (Displacement / loading): 124%
Structure weight / hull surface area: 28 lbs/sq ft or 135 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,78
- Longitudinal: 9,22
- Overall: 1,00
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

S31-S42, laid down 1936

Displacement: 80 ts standard
Dimensions: 32,36 m / 31,91 m x 4,9 m x 1,36 m
Armament: 1 - 20 mm gun, 2-4 - 7,62mm MG, 2 - 533mm above surface torpedo tubes
Machinery: Diesel Internal combustion motors
Speed: 36,5 kn
Complement: 23
Cost: $0,524 million

[The S34 actually is a copy of OTL Lürssen Boats S7-S13 which were historically laid down 1933. I use this design because SS can´t deal with light fast attack crafts.]

R73-R77 , laid down 1937
R78-R80 , laid down 1938



Displacement:
99 t light; 107 t standard; 113 t normal; 118 t full load

Dimensions: Length overall / water x beam x draught
115,73 ft / 111,55 ft x 16,73 ft x 5,91 ft (normal load)
35,27 m / 34,00 m x 5,10 m x 1,80 m

Armament:
2 - 1,57" / 40,0 mm guns in single mounts, 1,95lbs / 0,88kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on centreline, evenly spread
2 - 0,79" / 20,0 mm guns in single mounts, 0,24lbs / 0,11kg shells, 1937 Model
Breech loading guns in deck mounts
on side, all amidships
Weight of broadside 4 lbs / 2 kg
Shells per gun, main battery: 2.000

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0,59" / 15 mm - -
2nd: 0,39" / 10 mm - -

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 1.800 shp / 1.343 Kw = 21,73 kts
Range 2.000nm at 10,00 kts
Bunker at max displacement = 11 tons

Complement:
16 - 22

Cost:
£0,059 million / $0,237 million

Distribution of weights at normal displacement:
Armament: 1 tons, 0,5%
Armour: 1 tons, 0,5%
- Belts: 0 tons, 0,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 1 tons, 0,5%
- Armour Deck: 0 tons, 0,0%
- Conning Tower: 0 tons, 0,0%
Machinery: 49 tons, 43,5%
Hull, fittings & equipment: 39 tons, 34,2%
Fuel, ammunition & stores: 14 tons, 12,5%
Miscellaneous weights: 10 tons, 8,8%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
54 lbs / 24 Kg = 27,6 x 1,6 " / 40 mm shells or 0,1 torpedoes
Stability (Unstable if below 1.00): 1,15
Metacentric height 0,4 ft / 0,1 m
Roll period: 10,6 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0,04
Seaboat quality (Average = 1.00): 0,88

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0,360
Length to Beam Ratio: 6,67 : 1
'Natural speed' for length: 12,79 kts
Power going to wave formation at top speed: 75 %
Trim (Max stability = 0, Max steadiness = 100): 58
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: 11,48 ft / 3,50 m
- Forecastle (20%): 8,53 ft / 2,60 m
- Mid (50%): 8,53 ft / 2,60 m (7,22 ft / 2,20 m aft of break)
- Quarterdeck (15%): 7,22 ft / 2,20 m
- Stern: 7,22 ft / 2,20 m
- Average freeboard: 8,11 ft / 2,47 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 159,0%
- Above water (accommodation/working, high = better): 109,4%
Waterplane Area: 1.175 Square feet or 109 Square metres
Displacement factor (Displacement / loading): 99%
Structure weight / hull surface area: 15 lbs/sq ft or 76 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,52
- Longitudinal: 7,31
- Overall: 0,68
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

General Balasar , laid down 1937
General Phillips , laid down 1938



Displacement:
434 t light; 464 t standard; 531 t normal; 585 t full load

Dimensions: Length overall / water x beam x draught
217,79 ft / 213,25 ft x 24,61 ft x 5,91 ft (normal load)
66,38 m / 65,00 m x 7,50 m x 1,80 m

Armament:
4 - 4,13" / 105 mm guns (2x2 guns), 35,32lbs / 16,02kg shells, 1937 Model
Dual purpose guns in deck mounts
on centreline ends, evenly spread, 1 raised mount
4 - 1,57" / 40,0 mm guns (2x2 guns), 1,95lbs / 0,88kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
4 - 0,79" / 20,0 mm guns (2x2 guns), 0,24lbs / 0,11kg shells, 1937 Model
Machine guns in deck mounts
on centreline ends, evenly spread, all raised mounts - superfiring
Weight of broadside 150 lbs / 68 kg
Shells per gun, main battery: 220

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,38" / 35 mm 0,79" / 20 mm -
2nd: 0,59" / 15 mm - -
3rd: 0,39" / 10 mm - -

- Conning tower: 0,59" / 15 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Geared drive, 2 shafts, 2.500 ihp / 1.865 Kw = 18,53 kts
Range 2.800nm at 12,00 kts
Bunker at max displacement = 121 tons (100% coal)

Complement:
54 - 71

Cost:
£0,286 million / $1,143 million

Distribution of weights at normal displacement:
Armament: 19 tons, 3,5%
Armour: 12 tons, 2,3%
- Belts: 0 tons, 0,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 11 tons, 2,1%
- Armour Deck: 0 tons, 0,0%
- Conning Tower: 1 tons, 0,2%
Machinery: 153 tons, 28,8%
Hull, fittings & equipment: 200 tons, 37,7%
Fuel, ammunition & stores: 97 tons, 18,3%
Miscellaneous weights: 50 tons, 9,4%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
426 lbs / 193 Kg = 12,1 x 4,1 " / 105 mm shells or 0,3 torpedoes
Stability (Unstable if below 1.00): 1,20
Metacentric height 0,9 ft / 0,3 m
Roll period: 11,2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,33
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,600
Length to Beam Ratio: 8,67 : 1
'Natural speed' for length: 14,60 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 70
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: 12,47 ft / 3,80 m
- Forecastle (20%): 7,55 ft / 2,30 m
- Mid (44%): 7,55 ft / 2,30 m
- Quarterdeck (15%): 7,55 ft / 2,30 m
- Stern: 7,55 ft / 2,30 m
- Average freeboard: 7,94 ft / 2,42 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 131,9%
- Above water (accommodation/working, high = better): 102,2%
Waterplane Area: 3.838 Square feet or 357 Square metres
Displacement factor (Displacement / loading): 103%
Structure weight / hull surface area: 36 lbs/sq ft or 175 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,97
- Longitudinal: 1,32
- Overall: 1,00
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

S43-S44 laid down 1940
S45-S54 laid down 1941

Displacement: 100 ts standard
Dimensions: 32,76 m / 31,85 m x 5,06 m x 1,47 m
Armament: 2 - 20 mm gun, 2-4 - 7,62mm MG, 2 - 533mm above surface torpedo tubes, 6 DC
Machinery: Diesel Internal combustion motors
Speed: 36,3 kn
Complement: 25

[The S40 class actually is a copy of OTL Lürssen Boat S54 which was historically laid down 1939. I use this design because SS can´t deal with light fast attack crafts.]

R81-R89 , laid down 1942
R90-R101, laid down 1943



Displacement:
118 t light; 124 t standard; 130 t normal; 136 t full load

Dimensions: Length overall / water x beam x draught
125,93 ft / 121,39 ft x 16,73 ft x 5,91 ft (normal load)
38,38 m / 37,00 m x 5,10 m x 1,80 m

Armament:
2 - 1,57" / 40,0 mm guns in single mounts, 1,95lbs / 0,88kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on centreline, evenly spread
4 - 0,79" / 20,0 mm guns (2x2 guns), 0,24lbs / 0,11kg shells, 1942 Model
Breech loading guns in deck mounts
on side, all amidships
Weight of broadside 5 lbs / 2 kg
Shells per gun, main battery: 1.000

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0,59" / 15 mm - -
2nd: 0,39" / 10 mm - -

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 3.000 shp / 2.238 Kw = 24,14 kts
Range 2.000nm at 10,00 kts
Bunker at max displacement = 12 tons

Complement:
19 - 25

Cost:
£0,084 million / $0,336 million

Distribution of weights at normal displacement:
Armament: 1 tons, 0,5%
Armour: 1 tons, 0,6%
- Belts: 0 tons, 0,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 1 tons, 0,6%
- Armour Deck: 0 tons, 0,0%
- Conning Tower: 0 tons, 0,0%
Machinery: 61 tons, 47,0%
Hull, fittings & equipment: 45 tons, 34,5%
Fuel, ammunition & stores: 13 tons, 9,7%
Miscellaneous weights: 10 tons, 7,7%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
51 lbs / 23 Kg = 26,0 x 1,6 " / 40 mm shells or 0,1 torpedoes
Stability (Unstable if below 1.00): 1,05
Metacentric height 0,4 ft / 0,1 m
Roll period: 11,5 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0,05
Seaboat quality (Average = 1.00): 0,72

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0,380
Length to Beam Ratio: 7,25 : 1
'Natural speed' for length: 13,17 kts
Power going to wave formation at top speed: 77 %
Trim (Max stability = 0, Max steadiness = 100): 70
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: 12,47 ft / 3,80 m
- Forecastle (20%): 9,51 ft / 2,90 m
- Mid (40%): 9,51 ft / 2,90 m (7,22 ft / 2,20 m aft of break)
- Quarterdeck (15%): 7,22 ft / 2,20 m
- Stern: 7,22 ft / 2,20 m
- Average freeboard: 8,37 ft / 2,55 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 166,3%
- Above water (accommodation/working, high = better): 102,1%
Waterplane Area: 1.285 Square feet or 119 Square metres
Displacement factor (Displacement / loading): 76%
Structure weight / hull surface area: 16 lbs/sq ft or 78 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,50
- Longitudinal: 6,80
- Overall: 0,65
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

UJ89 - UJ94, laid down 1942
UJ95 - UJ104, laid down 1943



Displacement:
197 t light; 209 t standard; 237 t normal; 260 t full load

Dimensions: Length overall / water x beam x draught
146,54 ft / 140,09 ft x 22,31 ft x 6,33 ft (normal load)
44,67 m / 42,70 m x 6,80 m x 1,93 m

Armament:
2 - 3,46" / 88,0 mm guns in single mounts, 20,79lbs / 9,43kg shells, 1942 Model
Dual purpose guns in deck mounts
on centreline ends, evenly spread, 1 raised mount
2 - 1,57" / 40,0 mm guns (1x2 guns), 1,95lbs / 0,88kg shells, 1942 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
2 - 0,79" / 20,0 mm guns in single mounts, 0,24lbs / 0,11kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 46 lbs / 21 kg
Shells per gun, main battery: 280

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,18" / 30 mm 0,79" / 20 mm -
2nd: 0,59" / 15 mm - -
3rd: 0,39" / 10 mm - -

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 2.279 shp / 1.700 Kw = 19,72 kts
Range 3.500nm at 12,00 kts
Bunker at max displacement = 51 tons

Complement:
29 - 39

Cost:
£0,128 million / $0,511 million

Distribution of weights at normal displacement:
Armament: 6 tons, 2,4%
Armour: 5 tons, 2,1%
- Belts: 0 tons, 0,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 5 tons, 2,1%
- Armour Deck: 0 tons, 0,0%
- Conning Tower: 0 tons, 0,0%
Machinery: 60 tons, 25,1%
Hull, fittings & equipment: 112 tons, 47,0%
Fuel, ammunition & stores: 41 tons, 17,1%
Miscellaneous weights: 15 tons, 6,3%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
298 lbs / 135 Kg = 14,3 x 3,5 " / 88 mm shells or 0,3 torpedoes
Stability (Unstable if below 1.00): 1,10
Metacentric height 0,6 ft / 0,2 m
Roll period: 11,8 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0,20
Seaboat quality (Average = 1.00): 1,28

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0,420
Length to Beam Ratio: 6,28 : 1
'Natural speed' for length: 11,84 kts
Power going to wave formation at top speed: 69 %
Trim (Max stability = 0, Max steadiness = 100): 55
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: 17,72 ft / 5,40 m
- Forecastle (35%): 13,12 ft / 4,00 m (7,87 ft / 2,40 m aft of break)
- Mid (50%): 7,87 ft / 2,40 m
- Quarterdeck (15%): 7,87 ft / 2,40 m
- Stern: 7,87 ft / 2,40 m
- Average freeboard: 10,35 ft / 3,16 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 108,8%
- Above water (accommodation/working, high = better): 100,8%
Waterplane Area: 1.949 Square feet or 181 Square metres
Displacement factor (Displacement / loading): 128%
Structure weight / hull surface area: 28 lbs/sq ft or 139 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,78
- Longitudinal: 8,62
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

General Zartenar , laid down 1942
General Mazwei , laid down 1942


[Conceptional sketch, final design may differ slightly]

Displacement:
498 t light; 538 t standard; 603 t normal; 654 t full load

Dimensions: Length overall / water x beam x draught
229,28 ft / 223,10 ft x 26,25 ft x 6,00 ft (normal load)
69,88 m / 68,00 m x 8,00 m x 1,83 m

Armament:
6 - 4,13" / 105 mm guns (3x2 guns), 35,32lbs / 16,02kg shells, 1942 Model
Dual purpose guns in deck mounts
on centreline ends, majority forward, 1 raised mount - superfiring
4 - 1,57" / 40,0 mm guns (2x2 guns), 1,95lbs / 0,88kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
4 - 0,79" / 20,0 mm guns (2x2 guns), 0,24lbs / 0,11kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on centreline ends, evenly spread
Weight of broadside 221 lbs / 100 kg
Shells per gun, main battery: 220

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 0,79" / 20 mm 98,43 ft / 30,00 m 6,56 ft / 2,00 m
Ends: Unarmoured
Main Belt covers 68% of normal length
Main belt does not fully cover magazines and engineering spaces

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,18" / 30 mm 0,79" / 20 mm -
2nd: 0,59" / 15 mm - -
3rd: 0,39" / 10 mm - -

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Geared drive, 2 shafts, 2.666 ihp / 1.989 Kw = 18,52 kts
Range 2.600nm at 12,00 kts
Bunker at max displacement = 116 tons (100% coal)

Complement:
60 - 79

Cost:
£0,398 million / $1,591 million

Distribution of weights at normal displacement:
Armament: 28 tons, 4,6%
Armour: 39 tons, 6,5%
- Belts: 23 tons, 3,9%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 16 tons, 2,6%
- Armour Deck: 0 tons, 0,0%
- Conning Tower: 0 tons, 0,0%
Machinery: 156 tons, 26,0%
Hull, fittings & equipment: 235 tons, 39,0%
Fuel, ammunition & stores: 104 tons, 17,3%
Miscellaneous weights: 40 tons, 6,6%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
521 lbs / 236 Kg = 14,7 x 4,1 " / 105 mm shells or 0,3 torpedoes
Stability (Unstable if below 1.00): 1,25
Metacentric height 1,0 ft / 0,3 m
Roll period: 10,9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,35
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,600
Length to Beam Ratio: 8,50 : 1
'Natural speed' for length: 14,94 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 70
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: 12,47 ft / 3,80 m
- Forecastle (20%): 7,55 ft / 2,30 m
- Mid (44%): 7,55 ft / 2,30 m
- Quarterdeck (15%): 7,55 ft / 2,30 m
- Stern: 7,55 ft / 2,30 m
- Average freeboard: 7,94 ft / 2,42 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 128,1%
- Above water (accommodation/working, high = better): 102,6%
Waterplane Area: 4.283 Square feet or 398 Square metres
Displacement factor (Displacement / loading): 97%
Structure weight / hull surface area: 39 lbs/sq ft or 189 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,98
- Longitudinal: 1,27
- Overall: 1,00
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

[Somehow these vessels escaped entry into my encyclopedia or they were deleted accidently or I can't find them in my own encyclopedia anymore...]

Argonaut , laid down 1936
Lynkeus , laid down 1936



Displacement:
199 t light; 221 t standard; 228 t normal; 234 t full load

Dimensions: Length overall / water x beam x draught
145,80 ft / 144,36 ft x 27,89 ft x 3,61 ft (normal load)
44,44 m / 44,00 m x 8,50 m x 1,10 m

Armament:
2 - 5,91" / 150 mm guns in single mounts, 102,98lbs / 46,71kg shells, 1932 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread
4 - 0,79" / 20,0 mm guns in single mounts, 0,24lbs / 0,11kg shells, 1930 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 207 lbs / 94 kg
Shells per gun, main battery: 150

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 0,79" / 20 mm 95,14 ft / 29,00 m 3,94 ft / 1,20 m
Ends: Unarmoured
Main Belt covers 101% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,38" / 35 mm 0,98" / 25 mm -
2nd: 0,39" / 10 mm - -

- Armour deck: 0,39" / 10 mm, Conning tower: 1,38" / 35 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 1 shaft, 402 shp / 300 Kw = 12,52 kts
Range 2.000nm at 8,00 kts
Bunker at max displacement = 14 tons

Complement:
29 - 38

Cost:
£0,158 million / $0,633 million

Distribution of weights at normal displacement:
Armament: 26 tons, 11,3%
Armour: 45 tons, 19,8%
- Belts: 13 tons, 5,7%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 11 tons, 4,8%
- Armour Deck: 20 tons, 8,7%
- Conning Tower: 1 tons, 0,5%
Machinery: 10 tons, 4,2%
Hull, fittings & equipment: 118 tons, 51,8%
Fuel, ammunition & stores: 30 tons, 12,9%
Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
361 lbs / 164 Kg = 3,5 x 5,9 " / 150 mm shells or 0,4 torpedoes
Stability (Unstable if below 1.00): 1,51
Metacentric height 1,5 ft / 0,5 m
Roll period: 9,6 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0,18
Seaboat quality (Average = 1.00): 1,01

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,550
Length to Beam Ratio: 5,18 : 1
'Natural speed' for length: 12,01 kts
Power going to wave formation at top speed: 46 %
Trim (Max stability = 0, Max steadiness = 100): 71
Bow angle (Positive = bow angles forward): 10,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 8,20 ft / 2,50 m
- Forecastle (20%): 5,25 ft / 1,60 m
- Mid (50%): 4,59 ft / 1,40 m
- Quarterdeck (15%): 4,59 ft / 1,40 m
- Stern: 4,59 ft / 1,40 m
- Average freeboard: 5,06 ft / 1,54 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 100,7%
- Above water (accommodation/working, high = better): 84,9%
Waterplane Area: 2.725 Square feet or 253 Square metres
Displacement factor (Displacement / loading): 83%
Structure weight / hull surface area: 36 lbs/sq ft or 178 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,95
- Longitudinal: 1,59
- Overall: 1,00
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

Drudge, laid down 1943
Grind, laid down 1943



Displacement:
187 t light; 199 t standard; 219 t normal; 235 t full load

Dimensions: Length overall / water x beam x draught
140,93 ft / 134,51 ft x 22,97 ft x 5,91 ft (normal load)
42,96 m / 41,00 m x 7,00 m x 1,80 m

Armament:
2 - 2,95" / 75,0 mm guns in single mounts, 13,23lbs / 6,00kg shells, 1943 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, evenly spread
2 - 1,57" / 40,0 mm guns (1x2 guns), 1,95lbs / 0,88kg shells, 1943 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
2 - 0,79" / 20,0 mm guns in single mounts, 0,24lbs / 0,11kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 31 lbs / 14 kg
Shells per gun, main battery: 400

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 0,98" / 25 mm 78,74 ft / 24,00 m 6,56 ft / 2,00 m
Ends: Unarmoured
Main Belt covers 90% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,18" / 30 mm 0,79" / 20 mm 1,18" / 30 mm
2nd: 0,59" / 15 mm - -
3rd: 0,39" / 10 mm - -

- Conning tower: 0,79" / 20 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 1.340 shp / 1.000 Kw = 18,51 kts
Range 3.000nm at 12,00 kts
Bunker at max displacement = 36 tons

Complement:
27 - 36

Cost:
£0,099 million / $0,395 million

Distribution of weights at normal displacement:
Armament: 4 tons, 2,0%
Armour: 28 tons, 12,6%
- Belts: 23 tons, 10,3%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 4 tons, 2,0%
- Armour Deck: 0 tons, 0,0%
- Conning Tower: 1 tons, 0,3%
Machinery: 35 tons, 15,8%
Hull, fittings & equipment: 105 tons, 48,1%
Fuel, ammunition & stores: 32 tons, 14,6%
Miscellaneous weights: 15 tons, 6,9%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
479 lbs / 217 Kg = 37,2 x 3,0 " / 75 mm shells or 0,5 torpedoes
Stability (Unstable if below 1.00): 1,11
Metacentric height 0,7 ft / 0,2 m
Roll period: 11,8 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0,20
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0,420
Length to Beam Ratio: 5,86 : 1
'Natural speed' for length: 14,07 kts
Power going to wave formation at top speed: 68 %
Trim (Max stability = 0, Max steadiness = 100): 51
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: 13,12 ft / 4,00 m
- Forecastle (25%): 8,53 ft / 2,60 m
- Mid (50%): 8,53 ft / 2,60 m
- Quarterdeck (15%): 8,53 ft / 2,60 m
- Stern: 8,53 ft / 2,60 m
- Average freeboard: 8,99 ft / 2,74 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 77,3%
- Above water (accommodation/working, high = better): 120,3%
Waterplane Area: 1.999 Square feet or 186 Square metres
Displacement factor (Displacement / loading): 149%
Structure weight / hull surface area: 31 lbs/sq ft or 154 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,82
- Longitudinal: 5,79
- Overall: 1,00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent

UJ105-113, laid down 1944
UJ114-120, laid down 1945



Displacement:
200 t light; 209 t standard; 236 t normal; 258 t full load

Dimensions: Length overall / water x beam x draught
151,37 ft / 144,69 ft x 22,31 ft x 6,40 ft (normal load)
46,14 m / 44,10 m x 6,80 m x 1,95 m

Armament:
1 - 2,95" / 75,0 mm guns in single mounts, 12,87lbs / 5,84kg shells, 1944 Model
Automatic rapid fire gun in a deck mount with hoist
on centreline forward
2 - 1,57" / 40,0 mm guns (1x2 guns), 1,95lbs / 0,88kg shells, 1944 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
2 - 0,79" / 20,0 mm guns in single mounts, 0,24lbs / 0,11kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 17 lbs / 8 kg
Shells per gun, main battery: 400

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,18" / 30 mm 0,79" / 20 mm 0,98" / 25 mm
2nd: 0,59" / 15 mm - -
3rd: 0,39" / 10 mm - -

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 2.145 shp / 1.600 Kw = 20,79 kts
Range 4.000nm at 12,00 kts
Bunker at max displacement = 49 tons

Complement:
29 - 39

Cost:
£0,113 million / $0,451 million

Distribution of weights at normal displacement:
Armament: 2 tons, 1,1%
Armour: 2 tons, 1,0%
- Belts: 0 tons, 0,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 2 tons, 1,0%
- Armour Deck: 0 tons, 0,0%
- Conning Tower: 0 tons, 0,0%
Machinery: 55 tons, 23,2%
Hull, fittings & equipment: 115 tons, 48,8%
Fuel, ammunition & stores: 36 tons, 15,4%
Miscellaneous weights: 25 tons, 10,6%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
378 lbs / 172 Kg = 29,4 x 3,0 " / 75 mm shells or 0,4 torpedoes
Stability (Unstable if below 1.00): 1,10
Metacentric height 0,6 ft / 0,2 m
Roll period: 11,8 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0,11
Seaboat quality (Average = 1.00): 1,20

Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0,400
Length to Beam Ratio: 6,49 : 1
'Natural speed' for length: 14,49 kts
Power going to wave formation at top speed: 70 %
Trim (Max stability = 0, Max steadiness = 100): 43
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: 18,37 ft / 5,60 m
- Forecastle (35%): 13,12 ft / 4,00 m (7,87 ft / 2,40 m aft of break)
- Mid (50%): 7,87 ft / 2,40 m
- Quarterdeck (15%): 7,87 ft / 2,40 m
- Stern: 7,87 ft / 2,40 m
- Average freeboard: 10,45 ft / 3,18 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 96,7%
- Above water (accommodation/working, high = better): 106,6%
Waterplane Area: 2.062 Square feet or 192 Square metres
Displacement factor (Displacement / loading): 151%
Structure weight / hull surface area: 28 lbs/sq ft or 137 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,79
- Longitudinal: 8,50
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Good seaboat, rides out heavy weather easily