WesWorld

Category includes all unlimited ships between 2,000 and 600 tons.


FF-1, Australia Frigate laid down 1929

Displacement:
867 t light; 906 t standard; 1,246 t normal; 1,518 t full load

Dimensions: Length overall / water x beam x draught
290.00 ft / 290.00 ft x 32.00 ft x 10.00 ft (normal load)
88.39 m / 88.39 m x 9.75 m x 3.05 m

Armament:
3 - 4.70" / 119 mm guns in single mounts, 51.91lbs / 23.55kg shells, 1929 Model
Dual purpose guns in deck mounts
on centreline ends, majority forward, 1 raised mount
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.89kg shells, 1929 Model
Anti-aircraft guns in deck mounts
on centreline, all aft, all raised mounts - superfiring
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1929 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 165 lbs / 75 kg
Shells per gun, main battery: 150

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.20" / 30 mm - -

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 9,786 shp / 7,300 Kw = 24.00 kts
Range 9,000nm at 15.00 kts
Bunker at max displacement = 612 tons

Complement:
104 - 136

Cost:
£0.359 million / $1.437 million

Distribution of weights at normal displacement:
Armament: 21 tons, 1.7 %
Armour: 9 tons, 0.8 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 9 tons, 0.8 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 301 tons, 24.1 %
Hull, fittings & equipment: 511 tons, 41.0 %
Fuel, ammunition & stores: 380 tons, 30.5 %
Miscellaneous weights: 25 tons, 2.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,070 lbs / 939 Kg = 39.9 x 4.7 " / 119 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.38
Metacentric height 1.6 ft / 0.5 m
Roll period: 10.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.16
Seaboat quality (Average = 1.00): 1.34

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.470
Length to Beam Ratio: 9.06 : 1
'Natural speed' for length: 17.03 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 52
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 (20 %): 12.00 ft / 3.66 m
- Mid (50 %): 12.00 ft / 3.66 m
- Quarterdeck (15 %): 12.00 ft / 3.66 m
- Stern: 12.00 ft / 3.66 m
- Average freeboard: 12.24 ft / 3.73 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 93.8 %
- Above water (accommodation/working, high = better): 132.3 %
Waterplane Area: 6,020 Square feet or 559 Square metres
Displacement factor (Displacement / loading): 156 %
Structure weight / hull surface area: 49 lbs/sq ft or 238 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 2.38
- Overall: 1.05
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

Multi purpose ship

MP-M: Minewarefare (sweeper, layer)
carries minesweeping gear or mines

MP-S: Seaplane carrier
1-2 seaplanes + extensive aircraft facilities

MP-R: Rescue Ship
2 launches + large accomodations

MP-E: Escort
heavier armament, 1 light seaplane

MP-F: Flagship
flag facilities, 1 light seaplane

MP-T: Tender, supply ship
extensive support facilities, can support aircraft, submarines, small patrol boats

MP-A: Other
any not cover by above, including research vessels

HMAS Osprey, Australia Multi Purpose Ship laid down 1928

Displacement:
943 t light; 973 t standard; 1,246 t normal; 1,465 t full load

Dimensions: Length overall / water x beam x draught
290.00 ft / 290.00 ft x 32.00 ft x 10.00 ft (normal load)
88.39 m / 88.39 m x 9.75 m x 3.05 m

Armament:
1 - 4.70" / 119 mm guns in single mounts, 51.91lbs / 23.55kg shells, 1929 Model
Breech loading gun in deck mount
on centreline forward
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.88kg shells, 1929 Model
Breech loading guns in deck mounts
on centreline, evenly spread, 1 raised mount
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1929 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 62 lbs / 28 kg
Shells per gun, main battery: 120

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.20" / 30 mm - -

Machinery:
Diesel Internal combustion motors,
Geared drive, 4 shafts, 9,786 shp / 7,300 Kw = 24.00 kts
Range 7,200nm at 15.00 kts
Bunker at max displacement = 492 tons

Complement:
104 - 136

Cost:
£0.326 million / $1.305 million

Distribution of weights at normal displacement:
Armament: 8 tons, 0.6 %
Armour: 3 tons, 0.3 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3 tons, 0.3 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 301 tons, 24.1 %
Hull, fittings & equipment: 482 tons, 38.7 %
Fuel, ammunition & stores: 303 tons, 24.3 %
Miscellaneous weights: 150 tons, 12.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,971 lbs / 894 Kg = 38.0 x 4.7 " / 119 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.21
Metacentric height 1.3 ft / 0.4 m
Roll period: 11.9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.07
Seaboat quality (Average = 1.00): 1.37

Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.470
Length to Beam Ratio: 9.06 : 1
'Natural speed' for length: 17.03 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 51
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 (20 %): 12.90 ft / 3.93 m
- Mid (50 %): 12.90 ft / 3.93 m
- Quarterdeck (15 %): 9.00 ft / 2.74 m (12.90 ft / 3.93 m before break)
- Stern: 9.00 ft / 2.74 m
- Average freeboard: 12.48 ft / 3.80 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 96.5 %
- Above water (accommodation/working, high = better): 142.2 %
Waterplane Area: 6,020 Square feet or 559 Square metres
Displacement factor (Displacement / loading): 153 %
Structure weight / hull surface area: 45 lbs/sq ft or 222 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.91
- Longitudinal: 2.35
- Overall: 1.00
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

HMAS Discovery, Australia Antartic Research Vessel laid down 1931

Displacement:
1,714 t light; 1,771 t standard; 2,634 t normal; 3,325 t full load

Dimensions: Length overall / water x beam x draught
320.00 ft / 320.00 ft x 42.00 ft x 14.00 ft (normal load)
97.54 m / 97.54 m x 12.80 m x 4.27 m

Armament:
1 - 4.70" / 119 mm guns in single mounts, 51.91lbs / 23.55kg shells, 1931 Model
Breech loading gun in deck mount
on centreline forward
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.88kg shells, 1931 Model
Breech loading guns in deck mounts
on centreline, evenly spread, 1 raised mount
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1931 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 62 lbs / 28 kg
Shells per gun, main battery: 120

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1.20" / 30 mm 320.00 ft / 97.54 m 9.00 ft / 2.74 m
Ends: Unarmoured
Main Belt covers 154 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.20" / 30 mm - -

Machinery:
Oil fired boilers, steam turbines,
Electric cruising motors plus geared drives, 2 shafts, 8,996 shp / 6,711 Kw = 21.00 kts
Range 15,000nm at 15.00 kts
Bunker at max displacement = 1,553 tons

Complement:
183 - 239

Cost:
£0.454 million / $1.817 million

Distribution of weights at normal displacement:
Armament: 8 tons, 0.3 %
Armour: 131 tons, 5.0 %
- Belts: 128 tons, 4.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 269 tons, 10.2 %
Hull, fittings & equipment: 1,066 tons, 40.5 %
Fuel, ammunition & stores: 920 tons, 34.9 %
Miscellaneous weights: 240 tons, 9.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7,599 lbs / 3,447 Kg = 146.4 x 4.7 " / 119 mm shells or 2.3 torpedoes
Stability (Unstable if below 1.00): 1.31
Metacentric height 2.2 ft / 0.7 m
Roll period: 11.9 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 1.54

Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.490
Length to Beam Ratio: 7.62 : 1
'Natural speed' for length: 17.89 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 46
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 (20 %): 14.00 ft / 4.27 m
- Mid (50 %): 14.00 ft / 4.27 m
- Quarterdeck (15 %): 12.00 ft / 3.66 m (14.00 ft / 4.27 m before break)
- Stern: 12.00 ft / 3.66 m
- Average freeboard: 13.78 ft / 4.20 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 46.6 %
- Above water (accommodation/working, high = better): 129.3 %
Waterplane Area: 8,874 Square feet or 824 Square metres
Displacement factor (Displacement / loading): 271 %
Structure weight / hull surface area: 75 lbs/sq ft or 366 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.25
- Longitudinal: 2.59
- Overall: 1.35
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

FF-11, Australia Frigate laid down 1932

Displacement:
701 t light; 730 t standard; 974 t normal; 1,168 t full load

Dimensions: Length overall / water x beam x draught
250.00 ft / 250.00 ft x 29.00 ft x 10.00 ft (normal load)
76.20 m / 76.20 m x 8.84 m x 3.05 m

Armament:
2 - 4.70" / 119 mm guns in single mounts, 51.91lbs / 23.55kg shells, 1932 Model
Dual purpose guns in deck mounts
on centreline ends, evenly spread
2 - 1.57" / 40.0 mm guns (1x2 guns), 1.95lbs / 0.88kg shells, 1932 Model
Anti-aircraft guns in deck mount
on centreline amidships
4 - 0.79" / 20.0 mm guns (2x2 guns), 0.24lbs / 0.11kg shells, 1932 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 109 lbs / 49 kg
Shells per gun, main battery: 150

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.20" / 30 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 9,396 shp / 7,009 Kw = 24.20 kts
Range 7,500nm at 15.00 kts
Bunker at max displacement = 438 tons

Complement:
86 - 113

Cost:
£0.340 million / $1.360 million

Distribution of weights at normal displacement:
Armament: 14 tons, 1.4 %
Armour: 6 tons, 0.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 6 tons, 0.6 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 277 tons, 28.5 %
Hull, fittings & equipment: 394 tons, 40.5 %
Fuel, ammunition & stores: 272 tons, 28.0 %
Miscellaneous weights: 10 tons, 1.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,334 lbs / 605 Kg = 25.7 x 4.7 " / 119 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.31
Metacentric height 1.3 ft / 0.4 m
Roll period: 10.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.15
Seaboat quality (Average = 1.00): 1.21

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.470
Length to Beam Ratio: 8.62 : 1
'Natural speed' for length: 15.81 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 58
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 (20 %): 12.00 ft / 3.66 m
- Mid (50 %): 12.00 ft / 3.66 m
- Quarterdeck (15 %): 11.00 ft / 3.35 m
- Stern: 11.00 ft / 3.35 m
- Average freeboard: 11.92 ft / 3.63 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 104.7 %
- Above water (accommodation/working, high = better): 122.2 %
Waterplane Area: 4,703 Square feet or 437 Square metres
Displacement factor (Displacement / loading): 143 %
Structure weight / hull surface area: 45 lbs/sq ft or 219 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.93
- Longitudinal: 3.35
- Overall: 1.05
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

Polar Bear
Polar Light
Snow-White
Snow Flake

Polar Bear class, Australia (ex-SAE) Artic Sloop laid down 1911 (reffited 1921)

Displacement:
822 t light; 850 t standard; 1.246 t normal; 1.557 t full load
Loading submergence 132 tons/feet

Dimensions:
221,46 ft x 31,17 ft x 11,48 ft (normal load)
67,50 m x 9,50 m x 3,50 m

Armament:
2 - 3,46" / 88 mm guns
4 - 0,79" / 20 mm guns
Weight of broadside 43 lbs / 19 kg

Armour:
Belt 0,39" / 10 mm, end belts 0,98" / 25 mm
Belts cover 67% of normal area
Main gun shields 0,98" / 25 mm, Light gun shields 0,39" / 10 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 2.011 ihp / 1.500 Kw = 15,49 kts
Range 11.800nm at 10,00 kts

Complement:
104 - 136

Cost:
£0,052 million / $0,208 million

Distribution of weights at normal displacement:
Armament: 5 tons, 0,4%
Armour: 26 tons, 2,1%
Belts: 24 tons, 1,9%, Armament: 2 tons, 0,2%, Armour Deck: 0 tons, 0,0%
Conning Tower: 0 tons, 0,0%, Torpedo bulkhead: 0 tons, 0,0%
Machinery: 134 tons, 10,7%
Hull, fittings & equipment: 357 tons, 28,7%
Fuel, ammunition & stores: 424 tons, 34,0%
Miscellaneous weights: 300 tons, 24,1%

Metacentric height 1,1

Remarks:
Hull space for machinery, storage & compartmentation is excellent
Room for accommodation & workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable and able to fight her guns in the heaviest weather

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1,16
Shellfire needed to sink: 2.279 lbs / 1.034 Kg = 109,6 x 3,5 " / 88 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1,1
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 74 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0,05
Relative quality as seaboat: 2,00

Hull form characteristics:
Block coefficient: 0,550
Sharpness coefficient: 0,39
Hull speed coefficient 'M': 6,29
'Natural speed' for length: 14,88 kts
Power going to wave formation at top speed: 49 %
Trim: 37
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 65,2%
Relative accommodation and working space: 97,3%
(Average = 100%)
Displacement factor: 196%
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0,96
(Structure weight / hull surface area: 45 lbs / square foot or 219 Kg / square metre)
Relative longitudinal hull strength: 2,53
(for 11,48 ft / 3,50 m average freeboard, freeboard adjustment 1,50 ft)
Relative composite hull strength: 1,05

5 in service



FF-A class (ex-FA-1) , Australian (ex-Italian) Frigate laid down 1916

Displacement:
820 t light; 843 t standard; 922 t normal; 982 t full load
Loading submergence 119 tons/feet

Dimensions:
223.10 ft x 26.25 ft x 9.19 ft (normal load)
68.00 m x 8.00 m x 2.80 m

Armament:
2 - 100mm / 45 guns in 2 single mounts
8 - 20mm cannons
Weight of broadside 63 lbs / 29 kg
75tons of depth charges

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 10,000 shp / 7,530 Kw = 24.00 kts
Range 5,000nm at 10.00 kts

Complement:
83 - 108

Cost:
£0.144 million / $0.576 million

Distribution of weights at normal displacement:
Armament: 8 tons, 0.9 %
Machinery: 376 tons, 40.8 %
Hull, fittings & equipment: 361 tons, 39.1 %
Fuel, ammunition & stores: 103 tons, 11.1 %
Miscellaneous weights: 75 tons, 8.1 %

Metacentric height 0.9

Remarks:
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is excellent
Excellent seaboat, comfortable and able to fight her guns in the heaviest weather

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.14
Shellfire needed to sink: 704 lbs / 319 Kg = 23.1 x 3.9 " / 100 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 0.3
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 63 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.18
Relative quality as seaboat: 1.75

Hull form characteristics:
Block coefficient: 0.600
Sharpness coefficient: 0.38
Hull speed coefficient 'M': 7.00
'Natural speed' for length: 14.94 kts
Power going to wave formation at top speed: 70 %
Trim: 36
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 147.4 %
Relative accommodation and working space: 156.5 %
(Average = 100%)
Displacement factor: 104 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.86
(Structure weight / hull surface area: 44 lbs / square foot or 213 Kg / square metre)
Relative longitudinal hull strength: 4.27
(for 16.40 ft / 5.00 m average freeboard, freeboard adjustment 7.00 ft)
Relative composite hull strength: 1.01