WesWorld

Quoted

Jamestown, American Escort Gunboat laid down 1936

Displacement: 1,675 t light; 1,791 t standard; 2,182 t normal; 2,495 t full load

Dimensions: Length overall / water x beam x draught

333.17 ft / 326.77 ft x 44.29 ft x 12.57 ft (normal load) [101.55 m / 99.60 m x 13.50 m x 3.83 m]

Armament:

4 - 5.00" / 127 mm guns in single mounts, 62.50lbs / 28.35kg shells, 1936 Model Dual purpose guns in deck mounts with hoists on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 1.10" / 28.0 mm guns (2x4 guns), 0.67lbs / 0.30kg shells, 1936 Model Anti-aircraft guns in deck mounts on side, all amidships
4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1936 Model Machine guns in deck mounts on side, all amidships, all raised mounts - superfiring
Weight of broadside 256 lbs / 116 kg
Shells per gun, main battery: 500

Armor:

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

Conning tower: 0.98" / 25 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 2 shafts, 7,745 shp / 5,778 Kw = 21.00 kts
Range 8,000nm at 15.00 kts
Bunker at max displacement = 704 tons

Complement: 159 - 207

Cost: £0.611 million / $2.444 million

Distribution of weights at normal displacement:

Armament: 32 tons, 1.5 %
Armor: 15 tons, 0.7 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 11 tons, 0.5 %
- Armor Deck: 0 tons, 0.0 %
- Conning Tower: 4 tons, 0.2 %
Machinery: 217 tons, 10.0 %
Hull, fittings & equipment: 1,231 tons, 56.4 %
Fuel, ammunition & stores: 507 tons, 23.3 %
Miscellaneous weights: 180 tons, 8.2 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 5,623 lbs / 2,551 Kg = 90.0 x 5.0 " / 127 mm shells or 1.8 torpedoes
Stability (Unstable if below 1.00): 1.20
Metacentric height 2.1 ft / 0.6 m
Roll period: 13.0 seconds
Steadiness - As gun platform (Average = 50 %): 74 %
- Recoil effect (Restricted arc if above 1.00): 0.22
Seaboat quality (Average = 1.00): 1.69

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.420
Length to Beam Ratio: 7.38: 1
'Natural speed' for length: 18.08 kts
Power going to wave formation at top speed: 49 %
Trim (Max stability = 0, Max steadiness = 100): 44
Bow angle (Positive = bow angles forward): 18.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.69 ft / 6.00 m
- Forecastle (20 %): 16.40 ft / 5.00 m
- Mid (50 %): 13.12 ft / 4.00 m
- Quarterdeck (20 %): 13.12 ft / 4.00 m
- Stern: 13.12 ft / 4.00 m
- Average freeboard: 14.53 ft / 4.43 m
Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 56.2 %
- Above water (accommodation/working, high = better): 150.7 %
Waterplane Area: 9,023 Square feet or 838 Square meters
Displacement factor (Displacement / loading): 247 %
Structure weight / hull surface area: 87 lbs/sq ft or 426 Kg/sq meter
Hull strength (Relative):
- Cross-sectional: 1.28
- Longitudinal: 3.21
- Overall: 1.41
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

Breakdown of miscellaneous weight:

Anti-submarine detection equipment (hydrophones) - 25 tons
Two depth charge racks for 100 kg depth charges - 10 tons each - 20 tons
Four depth charge projectors for 100 kg depth charges - 5 tons each - 20 tons
Sixty depth charges (ten attacks) - 6 tons

Two mine rails - 10 tons each - 20 tons
Forty 600 kg sea mines - 15 tons

Provision for tropical service (additional ventilation etc.) - 25 tons

Reserved for future growth - 49 tons

Quoted from "Brockpaine"

Looks like a faster, 5" armed Erie class gunboat. :)

Quoted

Charleston, American Patrol Gunboat laid down 1932

Displacement: 1,890 t light; 1,977 t standard; 2,428 t normal; 2,790 t full load

Dimensions: Length overall / water x beam x draught

338.25 ft / 327.00 ft x 41.01 ft x 12.50 ft (normal load) [103.10 m / 99.67 m x 12.50 m x 3.81 m]

Armament:

3 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1932 Model Quick firing guns in deck mounts with hoists on centreline ends, majority forward, 1 raised mount
1 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1932 Model Anti-aircraft gun in deck mount on centreline aft, 1 raised gun
2 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1932 Model Anti-aircraft guns in deck mounts on side, all amidships
8 - 0.50" / 12.7 mm guns (4x2 guns), 0.06lbs / 0.03kg shells, 1932 Model Machine guns in deck mounts on side, evenly spread, all raised mounts
Weight of broadside 365 lbs / 166 kg
Shells per gun, main battery: 180

Armor:

Gun armor: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.98" / 25 mm 0.98" / 25 mm

Conning tower: 1.97" / 50 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 2 shafts, 12,373 shp / 9,230 Kw = 24.00 kts
Range 9,000nm at 15.00 kts
Bunker at max displacement = 813 tons

Complement: 172 - 224

Cost: £0.707 million / $2.829 million

Distribution of weights at normal displacement:

Armament: 46 tons, 1.9 %
Armor: 23 tons, 1.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 16 tons, 0.6 %
- Armor Deck: 0 tons, 0.0 %
- Conning Tower: 8 tons, 0.3 %
Machinery: 365 tons, 15.0 %
Hull, fittings & equipment: 1,316 tons, 54.2 %
Fuel, ammunition & stores: 538 tons, 22.2 %
Miscellaneous weights: 140 tons, 5.8 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 5,784 lbs / 2,623 Kg = 53.6 x 6.0 " / 152 mm shells or 1.4 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 1.7 ft / 0.5 m
Roll period: 13.2 seconds
Steadiness - As gun platform (Average = 50 %): 66 %
- Recoil effect (Restricted arc if above 1.00): 0.50
Seaboat quality (Average = 1.00): 1.95

Hull form characteristics:

Hull has a flush deck and transom stern
Block coefficient: 0.507
Length to Beam Ratio: 7.97: 1
'Natural speed' for length: 21.00 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 34
Bow angle (Positive = bow angles forward): 22.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23.79 ft / 7.25 m
- Forecastle (20 %): 22.15 ft / 6.75 m
- Mid (50 %): 20.51 ft / 6.25 m
- Quarterdeck (25 %): 13.94 ft / 4.25 m
- Stern: 13.94 ft / 4.25 m
- Average freeboard: 18.75 ft / 5.72 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 70.7 %
- Above water (accommodation/working, high = better): 201.6 %
Waterplane Area: 9,353 Square feet or 869 Square meters
Displacement factor (Displacement / loading): 193 %
Structure weight / hull surface area: 74 lbs/sq ft or 361 Kg/sq meter
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 6.05
- Overall: 1.18
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Breakdown of miscellaneous weight

Provision for aircraft handling (crane, hangar, etc.) - 40 tons
Provision for one (1) seaplane - 25 tons
Provision for A/S outfit (fitted in wartime) - four K-guns, two D/C racks - 50 tons
Provision for future growth - 25 tons

Quoted

Bibb, American Coast Guard Cutter laid down 1934

Displacement: 1,903 t light; 1,985 t standard; 2,428 t normal; 2,783 t full load

Dimensions: Length overall / water x beam x draught

338.25 ft / 327.00 ft x 41.01 ft x 12.50 ft (normal load) [103.10 m / 99.67 m x 12.50 m x 3.81 m]

Armament:

2 - 5.00" / 127 mm guns in single mounts, 62.50lbs / 28.35kg shells, 1934 Model Dual purpose guns in deck mounts with hoists on centerline ends, evenly spread
2 - 2.99" / 76.0 mm guns in single mounts, 13.39lbs / 6.07kg shells, 1923 Model Anti-aircraft guns in deck mounts on centerline ends, evenly spread, all raised mounts
8 - 1.10" / 28.0 mm guns (2x4 guns), 0.67lbs / 0.30kg shells, 1934 Model Anti-aircraft guns in deck mounts on side, all amidships, all raised mounts - superfiring
4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1921 Model Machine guns in deck mounts on side, evenly spread, all raised mounts
Weight of broadside 157 lbs / 71 kg
Shells per gun, main battery: 350

Armor:

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

Conning tower: 1.97" / 50 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 2 shafts, 8,817 shp / 6,577 Kw = 22.00 kts
Range 9,000nm at 15.00 kts
Bunker at max displacement = 798 tons

Complement: 172 - 224

Cost: £0.582 million / $2.330 million

Distribution of weights at normal displacement:

Armament: 20 tons, 0.8 %
Armor: 18 tons, 0.7 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 10 tons, 0.4 %
- Armor Deck: 0 tons, 0.0 %
- Conning Tower: 8 tons, 0.3 %
Machinery: 254 tons, 10.4 %
Hull, fittings & equipment: 1,472 tons, 60.6 %
Fuel, ammunition & stores: 525 tons, 21.6 %
Miscellaneous weights: 140 tons, 5.8 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 8,418 lbs / 3,818 Kg = 134.7 x 5.0 " / 127 mm shells or 2.3 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 1.7 ft / 0.5 m
Roll period: 13.2 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.18
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:

Hull has a flush deck and transom stern
Block coefficient: 0.507
Length to Beam Ratio: 7.97: 1
'Natural speed' for length: 21.00 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 30
Bow angle (Positive = bow angles forward): 22.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23.79 ft / 7.25 m
- Forecastle (20 %): 22.15 ft / 6.75 m
- Mid (50 %): 20.51 ft / 6.25 m
- Quarterdeck (25 %): 13.94 ft / 4.25 m
- Stern: 13.94 ft / 4.25 m
- Average freeboard: 18.75 ft / 5.72 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 48.6 %
- Above water (accommodation/working, high = better): 201.6 %
Waterplane Area: 9,353 Square feet or 869 Square meters
Displacement factor (Displacement / loading): 295 %
Structure weight / hull surface area: 83 lbs/sq ft or 403 Kg/sq meter
Hull strength (Relative):
- Cross-sectional: 1.22
- Longitudinal: 6.97
- Overall: 1.45
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Breakdown of miscellaneous weight

Provision for aircraft handling (crane, hangar, etc.) - 40 tons
Provision for one (1) seaplane - 25 tons
Provision for A/S outfit (fitted in wartime) - four K-guns, two D/C racks - 50 tons
Provision for future growth - 25 tons

Quoted

Courage, American Escort Gunboat laid down 1938

Displacement: 750 t light; 791 t standard; 999 t normal; 1,166 t full load

Dimensions: Length overall / water x beam x draught

237.00 ft / 229.66 ft x 33.14 ft x 9.84 ft (normal load) [72.24 m / 70.00 m x 10.10 m x 3.00 m]

Armament:

3 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1938 Model Anti-aircraft guns in deck mounts on centerline ends, majority forward
2 - 1.10" / 28.0 mm guns (1x2 guns), 0.67lbs / 0.30kg shells, 1938 Model Anti-aircraft guns in deck mount on centerline aft, all raised guns - superfiring
4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1938 Model Machine guns in deck mounts on side, evenly spread, all raised mounts
Weight of broadside 42 lbs / 19 kg
Shells per gun, main battery: 900

Armor:

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

Conning tower: 0.98" / 25 mm

Machinery:

Oil fired boilers, complex reciprocating steam engines, Geared drive, 1 shaft, 4,663 ihp / 3,479 Kw = 20.00 kts
Range 5,000nm at 15.00 kts
Bunker at max displacement = 374 tons

Complement: 88 - 115

Cost: £0.377 million / $1.507 million

Distribution of weights at normal displacement:

Armament: 5 tons, 0.5 %
Armor: 5 tons, 0.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3 tons, 0.3 %
- Armor Deck: 0 tons, 0.0 %
- Conning Tower: 2 tons, 0.2 %
Machinery: 258 tons, 25.9 %
Hull, fittings & equipment: 380 tons, 38.1 %
Fuel, ammunition & stores: 250 tons, 25.0 %
Miscellaneous weights: 100 tons, 10.0 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 1,413 lbs / 641 Kg = 104.6 x 3.0 " / 76 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.25
Metacentric height 1.4 ft / 0.4 m
Roll period: 11.6 seconds
Steadiness - As gun platform (Average = 50 %): 84 %
- Recoil effect (Restricted arc if above 1.00): 0.05
Seaboat quality (Average = 1.00): 1.58

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.467
Length to Beam Ratio: 6.93: 1
'Natural speed' for length: 15.15 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 53
Bow angle (Positive = bow angles forward): 18.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 17.55 ft / 5.35 m
- Forecastle (20 %): 14.27 ft / 4.35 m
- Mid (50 %): 10.99 ft / 3.35 m
- Quarterdeck (20 %): 10.99 ft / 3.35 m
- Stern: 10.99 ft / 3.35 m
- Average freeboard: 12.40 ft / 3.78 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 101.2 %
- Above water (accommodation/working, high = better): 120.3 %
Waterplane Area: 4,705 Square feet or 437 Square meters
Displacement factor (Displacement / loading): 150 %
Structure weight / hull surface area: 46 lbs/sq ft or 225 Kg/sq meter
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 3.46
- Overall: 1.09
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
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Breakdown of miscellaneous weight

Antisubmarine detection equipment (hydrophones) - 25 tons
Two depth charge racks for 100 kg depth charges - 20 tons
Four depth charge projectors for 100 kg depth charges - 20 tons
One hundred twenty depth charges - twenty attacks - 12 tons
Reserved for future growth - 28 tons

Quoted from "eltf177"

Shouldn't Courage have one superfiring 3-inch gun?

Quoted

Colonel George Armistead, American Mine Planter laid down 1926

Displacement: 1,249 t light; 1,277 t standard; 1,310 t normal; 1,336 t full load

Dimensions: Length overall / water x beam x draught

197.98 ft / 190.29 ft x 36.09 ft x 12.14 ft (normal load) [60.34 m / 58.00 m x 11.00 m x 3.70 m]

Armament:

1 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1921 Model Anti-aircraft gun in deck mount on centerline forward
4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1921 Model Machine guns in deck mounts on side, evenly spread
Weight of broadside 14 lbs / 6 kg
Shells per gun, main battery: 200

Machinery:

Diesel Internal combustion motors, Geared drive, 2 shafts, 1,522 shp / 1,135 Kw = 14.00 kts
Range 3,000nm at 8.00 kts
Bunker at max displacement = 59 tons

Complement: 108 - 141

Cost: £0.180 million / $0.718 million

Distribution of weights at normal displacement:

Armament: 2 tons, 0.1 %
Machinery: 49 tons, 3.7 %
Hull, fittings & equipment: 879 tons, 67.1 %
Fuel, ammunition & stores: 61 tons, 4.6 %
Miscellaneous weights: 320 tons, 24.4 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 3,907 lbs / 1,772 Kg = 289.4 x 3.0 " / 76 mm shells or 2.0 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 1.2 ft / 0.4 m
Roll period: 13.7 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:

Hull has rise forward of midbreak
Block coefficient: 0.550
Length to Beam Ratio: 5.27: 1
'Natural speed' for length: 13.79 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 25
Bow angle (Positive = bow angles forward): 8.00 degrees
Stern overhang: 4.92 ft / 1.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.69 ft / 6.00 m
- Forecastle (20 %): 16.40 ft / 5.00 m
- Mid (40 %): 16.40 ft / 5.00 m (9.84 ft / 3.00 m aft of break)
- Quarterdeck (40 %): 9.84 ft / 3.00 m
- Stern: 9.84 ft / 3.00 m
- Average freeboard: 12.73 ft / 3.88 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 41.0 %
- Above water (accommodation/working, high = better): 110.9 %
Waterplane Area: 4,793 Square feet or 445 Square meters
Displacement factor (Displacement / loading): 304 %
Structure weight / hull surface area: 112 lbs/sq ft or 545 Kg/sq meter
Hull strength (Relative):
- Cross-sectional: 2.18
- Longitudinal: 10.33
- Overall: 2.55
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Breakdown of Miscellaneous Weight

Two mine rails - 10 tons each - 20 tons
Five hundred 600 kg sea mines - 300 tons

Quoted from "BruceDuncan"

One of the anomalies of the American defense establishment of the 1920s and 1930s was the fact that responsibility for defensive sea mining in home waters rested not with the US Navy, but with the US Army – a mission assigned to the US Army Mine Planter Service, associated with the Coast Artillery. Historically the AMPS operated a small number of converted merchant ships and minor vessels, though in the Second World War larger vessels were built from the keel up – though by that time the mission had been passed, together with the ships, to the US Navy.

Quoted

Tacoma, American Patrol Frigate laid down 1941

Displacement: 1,030 t light; 1,090 t standard; 1,298 t normal; 1,464 t full load

Dimensions: Length overall / water x beam x draught

343.42 ft / 334.65 ft x 32.15 ft x 9.84 ft (normal load) [104.67 m / 102.00 m x 9.80 m x 3.00 m]

Armament:
2 - 5.00" / 127 mm guns in single mounts, 62.50lbs / 28.35kg shells, 1941 Model Dual purpose guns in deck mounts on centerline ends, evenly spread
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.88kg shells, 1941 Model Anti-aircraft guns in deck mounts on centerline ends, evenly spread, all raised mounts
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.88kg shells, 1941 Model Anti-aircraft guns in deck mounts on side, evenly spread, all raised mounts
4 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1941 Model Anti-aircraft guns in deck mounts on side, evenly spread, all raised mounts
Weight of broadside 142 lbs / 64 kg
Shells per gun, main battery: 400
4 - 21.0" / 533 mm above water torpedoes

Armor:

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

Conning tower: 0.98" / 25 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 2 shafts, 9,341 shp / 6,968 Kw = 25.00 kts
Range 6,500nm at 15.00 kts
Bunker at max displacement = 374 tons

Complement: 107 - 140

Cost: £0.528 million / $2.114 million

Distribution of weights at normal displacement:

Armament: 18 tons, 1.4 %
Armor: 11 tons, 0.8 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 8 tons, 0.6 %
- Armor Deck: 0 tons, 0.0 %
- Conning Tower: 3 tons, 0.2 %
Machinery: 247 tons, 19.0 %
Hull, fittings & equipment: 635 tons, 48.9 %
Fuel, ammunition & stores: 268 tons, 20.6 %
Miscellaneous weights: 120 tons, 9.2 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 2,625 lbs / 1,191 Kg = 42.0 x 5.0 " / 127 mm shells or 0.9 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 1.2 ft / 0.4 m
Roll period: 12.4 seconds
Steadiness - As gun platform (Average = 50 %): 76 %
- Recoil effect (Restricted arc if above 1.00): 0.21
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:

Hull has a flush deck and transom stern
Block coefficient: 0.429
Length to Beam Ratio: 10.41: 1
'Natural speed' for length: 21.00 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 38
Bow angle (Positive = bow angles forward): 22.00 degrees
Stern overhang: 0.82 ft / 0.25 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.69 ft / 6.00 m
- Forecastle (20 %): 16.73 ft / 5.10 m
- Mid (50 %): 14.44 ft / 4.40 m
- Quarterdeck (22 %): 14.44 ft / 4.40 m
- Stern: 14.44 ft / 4.40 m
- Average freeboard: 15.48 ft / 4.72 m
Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 84.7 %
- Above water (accommodation/working, high = better): 139.6 %
Waterplane Area: 7,010 Square feet or 651 Square meters
Displacement factor (Displacement / loading): 169 %
Structure weight / hull surface area: 44 lbs/sq ft or 216 Kg/sq meter
Hull strength (Relative):
- Cross-sectional: 0.83
- Longitudinal: 3.84
- Overall: 0.96
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
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Breakdown of miscellaneous weight:

Anti-submarine detection equipment (ASDIC/Sonar) - 25 tons
Two depth charge racks for 100 kg depth charges - 10 tons each - 20 tons
Four depth charge projectors for 100 kg depth charges - 5 tons each - 20 tons
One hundred twenty depth charges (twenty attacks) - 12 tons
Provision for electronic detection equipment - 23 tons
Reserved for future growth - 20 tons