WesWorld

Admiralty 'S' type Destroyer Leader
- HMAS Scott (Transferred to RAN, 1933)


Admiralty 'S' type Sloop
- HMCS Stormcloud (Modernized, 1938)
- HMCS Strenuous (Modernized, 1938)
- HMCS Sturdy (Modernized, 1938)
- HMCS Stronghold (Modernized, 1938)
- HMCS Swallow (Modernized, 1938)
- HMCS Sabre (Modernized, 1938)
- HMCS Saladin (Modernized, 1938)
- HMCS Sardonyx (Modernized, 1938)
- HMCS Shark (Modernized, 1938)
- HMCS Sparrowhawk (Modernized, 1938)
- HMCS Splendid (Modernized, 1938)
- HMCS Sportive (Modernized, 1938)
- HMCS Tilbury (Transferred to RAN, 1933)
- HMCS Tintagel (Transferred to RAN, 1933)
- HMCS Tribune (Transferred to RAN, 1933)
- HMCS Scimitar (Modernized, 1938)
- HMCS Scotsman (Modernized, 1938)
- HMCS Scout (Modernized, 1938)
- HMCS Scythe (Modernized, 1938)
- HMCS Seabear (Modernized, 1938)
- HMCS Seafire (Modernized, 1938)
- HMCS Searcher (Modernized, 1938)
- HMCS Seawolf (Modernized, 1938)
- HMCS Tobago (Modernized, 1938)
- HMCS Torbay (Modernized, 1938)
- HMCS Toreador (Modernized, 1938)
- HMCS Tourmaline (Modernized, 1938)
- HMCS Tryphon (Modernized, 1938)
- HMCS Turquoise (Modernized, 1938)
- HMCS Tuscan (Modernized, 1938)
- HMCS Tyrian (Modernized, 1938)
- HMCS Seraph (Modernized, 1938)
- HMCS Sioux (Ex-HMS Serapis. Modernized, 1938)
- HMCS Serene (Modernized, 1938)
- HMCS Simoon (Modernized, 1938)
- HMCS Teazer (Modernized, 1938)
- HMCS Tirade (Modernized, 1938)
- HMCS Tower (Modernized, 1938)
- HMCS Trenchant (Modernized, 1938)
- HMCS Trinidad (Modernized, 1938)
- HMCS Tristram (Modernized, 1938)
- HMCS Trojan (Modernized, 1938)
- HMCS Truant (Modernized, 1938)
- HMCS Stirling (Modernized, 1938)
- HMCS Stonehenge (Modernized, 1938)
- HMCS Senator (Modernized, 1938)
- HMCS Sepoy (Modernized, 1938)
- HMCS Tenedos (Modernized, 1938)
- HMCS Thanet (Modernized, 1938)
- HMCS Seaspray (Ex-HMS Tumult. Modernized, 1938)
- HMCS Tomahawk (Modernized, 1938)




River class Sloop
- HMCS Assiniboine
- HMCS Attawapiskat
- HMCS Annapolis*
- HMCS Anderson
- HMCS Back
- HMCS Chaudière
- HMCS Capilano
- HMCS Coppermine*
- HMCS Dubawnt
- HMCS Dauphin
- HMCS Eastmain
- HMCS English*
- HMCS Hoodoo*
- HMCS Horton
- HMCS Margaree
- HMCS Mackenzie
- HMCS Inch Arran
- HMCS Gatineau
- HMCS Gander
- HMCS Great Slave*
- HMCS Kicking Horse*
- HMCS Kazan
- HMCS Kootenay
- HMCS Koksoak
- HMCS Nottaway*
- HMCS Niagra
- HMCS Nipigon
- HMCS Fraser
- HMCS Peace*
- HMCS Pend d'Oreille
- HMCS Peel
- HMCS Qu'Appelle
- HMCS Red River*
- HMCS Restigouche
- HMCS La Grande
- HMCS Liard
- HMCS Terra Nova*
- HMCS Thelon
- HMCS Souris
- HMCS Stewart
- HMCS St. Laurent*
- HMCS St. Croix
- HMCS St. Clair
- HMCS St. Francis
- HMCS Shelburne*
- HMCS Saguenay
- HMCS Skeena
- HMCS Severn


Tribal class (Batch I)
- HMCS Iroquois
- HMCS Athabaskan
- HMCS Algonquin
- HMCS Cayuga
- HMCS Haida
- HMCS Huron
- HMCS Nootka
- HMCS Micmac
Tribal class (Batch II)
- HMCS Aleut
- HMCS Mohawk
- HMCS Abenaki
- HMCS Atikamek
- HMCS Cree
- HMCS Inuit
- HMCS Eskimo
- HMCS Wyandot
Tribal class (Batch III)
- HMCS Onondaga
- HMCS Oneida
- HMCS Ojibwa
- HMCS Okanagan
- HMCS Odawa
- HMCS Ookpik
- HMCS Osoyoos
- HMCS Oswegatchie
Tribal class (Batch IV)
- HMCS Metis
- HMCS Chippewa
- HMCS Arapaho
- HMCS Assiniboin
- HMCS Atsina
- HMCS Hidatsa
- HMCS Kutenai
- HMCS Tionontati

Admiralty 'S' type
HMCS Stormcloud
HMCS Strenuous
HMCS Sturdy
HMCS Stronghold
HMCS Swallow
HMCS Sabre
HMCS Saladin
HMCS Sardonyx
HMCS Shark
HMCS Sparrowhawk
HMCS Splendid
HMCS Sportive
HMCS Tilbury
HMCS Tintagel
HMCS Tribune

Aquired 1938
HMCS Scimitar
HMCS Scotsman
HMCS Scout
HMCS Scythe
HMCS Seabear
HMCS Seafire
HMCS Searcher
HMCS Seawolf

Aquired 1937 (Yarrow/Thornycroft type)
HMCS Tobago
HMCS Torbay
HMCS Toreador
HMCS Tourmaline
HMCS Tryphon
HMCS Turquoise
HMCS Tuscan
HMCS Tyrian

Aquired 1940
HMCS Seraph
HMCS Sioux (Ex-HMS Serapis)
HMCS Serene
HMCS Simoon
HMCS Teazer
HMCS Tirade
HMCS Tower
HMCS Trenchant
HMCS Trinidad
HMCS Tristram
HMCS Trojan
HMCS Truant
HMCS Stirling
HMCS Stonehenge
HMCS Senator
HMCS Sepoy
HMCS Tenedos
HMCS Thanet
HMCS Seaspray (Ex-HMS Tumult)
HMCS Tomahawk


Type: Destroyer
Displacement: 1,075 tons
Length: 276 ft (84 m) o/a
Beam: 26 ft 9 in (8.2 m)
Draught: 10 ft 10 in (3.3 m)
Propulsion: Brown-Curtis, steam turbines, 2 shafts, 27,000 shp
Speed: 36 knots
Range: 250-300 tons of oil
Complement: 90
Armament: 3 × Quick-firing 4 in L/40 Mark IV, mount P Mk. IX
1 × QF 2 pdr Mark II "pom-pom"
4 × Lewis Guns
2 × twin tubes for 21 in torpedoes
2 × fixed 14 in tubes for torpedoes

1938 Sloop refits

[names tbd]

S class, Canadian (Ex Royal Navy) Slooplaid down 1918 (Engine 1938)

Displacement:
1,000 t light; 1,036 t standard; 1,163 t normal; 1,265 t full load

Dimensions: Length overall / water x beam x draught
284.53 ft / 281.00 ft x 26.75 ft x 10.80 ft (normal load)
86.72 m / 85.65 m x 8.15 m x 3.29 m

Armament:
2 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1938 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread
8 - 1.57" / 40.0 mm guns (1x8 guns), 1.95lbs / 0.88kg shells, 1938 Model
Anti-aircraft guns in deck mount
on side amidships
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1938 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 82 lbs / 37 kg
Shells per gun, main battery: 250
8 - 21.0" / 533.4 mm above water torpedoes

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 32,187 shp / 24,012 Kw = 32.00 kts
Range 3,700nm at 15.00 kts
Bunker at max displacement = 229 tons

Complement:
99 - 129

Cost:
£0.258 million / $1.030 million

Distribution of weights at normal displacement:
Armament: 10 tons, 0.9 %
Machinery: 609 tons, 52.3 %
Hull, fittings & equipment: 341 tons, 29.3 %
Fuel, ammunition & stores: 163 tons, 14.0 %
Miscellaneous weights: 40 tons, 3.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
304 lbs / 138 Kg = 9.5 x 4.0 " / 102 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 0.9 ft / 0.3 m
Roll period: 12.1 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.27
Seaboat quality (Average = 1.00): 0.93

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.502
Length to Beam Ratio: 10.50 : 1
'Natural speed' for length: 16.76 kts
Power going to wave formation at top speed: 73 %
Trim (Max stability = 0, Max steadiness = 100): 54
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: 20.00 ft / 6.10 m
- Forecastle (20 %): 18.00 ft / 5.49 m
- Mid (35 %): 18.00 ft / 5.49 m (12.00 ft / 3.66 m aft of break)
- Quarterdeck (15 %): 12.00 ft / 3.66 m
- Stern: 12.00 ft / 3.66 m
- Average freeboard: 14.26 ft / 4.35 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 180.0 %
- Above water (accommodation/working, high = better): 34.4 %
Waterplane Area: 5,015 Square feet or 466 Square metres
Displacement factor (Displacement / loading): 62 %
Structure weight / hull surface area: 29 lbs/sq ft or 139 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 3.48
- Overall: 0.60
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is extremely poor
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Tribal class Fleet Destroyer
HMCS Iroquois
HMCS Athabaskan
HMCS Algonquin
HMCS Cayuga
HMCS Haida
HMCS Huron
HMCS Nootka
HMCS Micmac



HMCS Iroquois (Tribal class), Canadian Destroyer laid down 1935

Displacement:
2,189 t light; 2,301 t standard; 2,508 t normal; 2,673 t full load

Dimensions: Length overall / water x beam x draught
392.36 ft / 387.00 ft x 36.00 ft x 14.00 ft (normal load)
119.59 m / 117.96 m x 10.97 m x 4.27 m

Armament:
6 - 5.50" / 140 mm guns (2x3 guns), 83.19lbs / 37.73kg shells, 1935 Model
Dual purpose guns in turrets (on barbettes)
on centreline ends, evenly spread
8 - 1.57" / 40.0 mm guns (2x4 guns), 1.95lbs / 0.88kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on centreline, evenly spread, all raised mounts
8 - 1.57" / 40.0 mm guns (2x4 guns), 1.95lbs / 0.89kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
12 - 0.79" / 20.0 mm guns (6x2 guns), 0.24lbs / 0.11kg shells, 1935 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 533 lbs / 242 kg
Shells per gun, main battery: 200
10 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm - 0.25" / 6 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 51,658 shp / 38,537 Kw = 35.00 kts
Range 4,000nm at 15.00 kts
Bunker at max displacement = 373 tons

Complement:
176 - 230

Cost:
£1.557 million / $6.230 million

Distribution of weights at normal displacement:
Armament: 67 tons, 2.7 %
Armour: 19 tons, 0.7 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 19 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,238 tons, 49.4 %
Hull, fittings & equipment: 825 tons, 32.9 %
Fuel, ammunition & stores: 319 tons, 12.7 %
Miscellaneous weights: 40 tons, 1.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
714 lbs / 324 Kg = 8.6 x 5.5 " / 140 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.30
Metacentric height 1.7 ft / 0.5 m
Roll period: 11.5 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.70
Seaboat quality (Average = 1.00): 1.10

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.450
Length to Beam Ratio: 10.75 : 1
'Natural speed' for length: 22.46 kts
Power going to wave formation at top speed: 68 %
Trim (Max stability = 0, Max steadiness = 100): 46
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 20.00 ft / 6.10 m
- Forecastle (20 %): 20.00 ft / 6.10 m
- Mid (60 %): 20.00 ft / 6.10 m (14.00 ft / 4.27 m aft of break)
- Quarterdeck (10 %): 14.00 ft / 4.27 m
- Stern: 14.00 ft / 4.27 m
- Average freeboard: 17.60 ft / 5.36 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 182.1 %
- Above water (accommodation/working, high = better): 88.0 %
Waterplane Area: 9,231 Square feet or 858 Square metres
Displacement factor (Displacement / loading): 71 %
Structure weight / hull surface area: 41 lbs/sq ft or 202 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.64
- Overall: 0.59
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped

Automatic Dual-Purpose twin 5.5" guns simmed as triples.

Improved Tribals with an additional 5.5" mount, of an improved lighter design, with Radar, Sonar, and all the other Destroyer trimmings.

- HMCS Aleut
- HMCS Mohawk
- HMCS Abenaki
- HMCS Atikamek
- HMCS Cree
- HMCS Inuit
- HMCS Eskimo
- HMCS Wyandot



HMCS Eskimo, Canadian Destroyer laid down 1938

Displacement:
2,200 t light; 2,320 t standard; 2,523 t normal; 2,685 t full load

Dimensions: Length overall / water x beam x draught
392.36 ft / 387.00 ft x 36.00 ft x 14.00 ft (normal load)
119.59 m / 117.96 m x 10.97 m x 4.27 m

Armament:
6 - 5.50" / 140 mm guns (3x2 guns), 83.19lbs / 37.73kg shells, 1940 Model
Automatic rapid fire guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
24 - 1.57" / 40.0 mm guns (3x8 guns), 1.95lbs / 0.88kg shells, 1938 Model
Anti-aircraft guns in deck mounts
on side, all amidships, 1 raised mount - superfiring
12 - 0.79" / 20.0 mm guns (6x2 guns), 0.24lbs / 0.11kg shells, 1938 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 549 lbs / 249 kg
Shells per gun, main battery: 215
10 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm - 0.25" / 6 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 51,952 shp / 38,756 Kw = 35.00 kts
Range 4,000nm at 15.00 kts
Bunker at max displacement = 364 tons

Complement:
177 - 231

Cost:
£1.761 million / $7.044 million

Distribution of weights at normal displacement:
Armament: 81 tons, 3.2 %
Armour: 23 tons, 0.9 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 23 tons, 0.9 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,195 tons, 47.4 %
Hull, fittings & equipment: 831 tons, 32.9 %
Fuel, ammunition & stores: 322 tons, 12.8 %
Miscellaneous weights: 70 tons, 2.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
702 lbs / 319 Kg = 8.4 x 5.5 " / 140 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.23
Metacentric height 1.6 ft / 0.5 m
Roll period: 12.1 seconds
Steadiness - As gun platform (Average = 50 %): 49 %
- Recoil effect (Restricted arc if above 1.00): 0.82
Seaboat quality (Average = 1.00): 1.02

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.453
Length to Beam Ratio: 10.75 : 1
'Natural speed' for length: 22.45 kts
Power going to wave formation at top speed: 68 %
Trim (Max stability = 0, Max steadiness = 100): 46
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 20.00 ft / 6.10 m
- Forecastle (20 %): 20.00 ft / 6.10 m
- Mid (60 %): 20.00 ft / 6.10 m (14.00 ft / 4.27 m aft of break)
- Quarterdeck (10 %): 14.00 ft / 4.27 m
- Stern: 14.00 ft / 4.27 m
- Average freeboard: 17.60 ft / 5.36 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 181.1 %
- Above water (accommodation/working, high = better): 87.7 %
Waterplane Area: 9,252 Square feet or 860 Square metres
Displacement factor (Displacement / loading): 70 %
Structure weight / hull surface area: 42 lbs/sq ft or 203 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.53
- Overall: 0.58
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped

Improved light-weight Automated Dual-Purpose twin 5.5" guns simmed as 1940 Automatics.

30 tons - additional weight of DP mounts (10 tons per)
30 tons - ASW and Radar

Tribal class (Batch III), third turret shifted aft for better weight distribution, improved range and slight increase in size.

HMCS Onondaga
HMCS Oneida
HMCS Ojibwa
HMCS Okanagan
HMCS Odawa
HMCS Ookpik
HMCS Osoyoos
HMCS Oswegatchie



HMCS Onondaga, Canadian Destroyer laid down 1940

Displacement:
2,500 t light; 2,659 t standard; 3,040 t normal; 3,344 t full load

Dimensions: Length overall / water x beam x draught
395.36 ft / 390.00 ft x 36.00 ft x 16.00 ft (normal load)
120.51 m / 118.87 m x 10.97 m x 4.88 m

Armament:
6 - 5.50" / 140 mm guns (3x2 guns), 83.19lbs / 37.73kg shells, 1940 Model
Automatic rapid fire guns in turrets (on barbettes)
on centreline ends, majority aft, 1 raised mount aft - superfiring
24 - 1.57" / 40.0 mm guns (3x8 guns), 1.95lbs / 0.88kg shells, 1940 Model
Anti-aircraft guns in deck mounts
on side, all amidships, 1 raised mount - superfiring
12 - 0.79" / 20.0 mm guns (6x2 guns), 0.24lbs / 0.11kg shells, 1940 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
12 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1940 Model
Breech loading guns in deck mount
on side, evenly spread
Weight of broadside 552 lbs / 250 kg
Shells per gun, main battery: 300
10 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm - 0.25" / 6 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 59,114 shp / 44,099 Kw = 35.00 kts
Range 7,000nm at 15.00 kts
Bunker at max displacement = 685 tons

Complement:
204 - 266

Cost:
£2.137 million / $8.546 million

Distribution of weights at normal displacement:
Armament: 81 tons, 2.7 %
Armour: 23 tons, 0.7 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 23 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,430 tons, 47.0 %
Hull, fittings & equipment: 876 tons, 28.8 %
Fuel, ammunition & stores: 540 tons, 17.8 %
Miscellaneous weights: 90 tons, 3.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
812 lbs / 368 Kg = 9.8 x 5.5 " / 140 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.23
Metacentric height 1.6 ft / 0.5 m
Roll period: 12.0 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.78
Seaboat quality (Average = 1.00): 1.02

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.474
Length to Beam Ratio: 10.83 : 1
'Natural speed' for length: 22.47 kts
Power going to wave formation at top speed: 69 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 20.00 ft / 6.10 m
- Forecastle (20 %): 20.00 ft / 6.10 m
- Mid (60 %): 20.00 ft / 6.10 m (14.00 ft / 4.27 m aft of break)
- Quarterdeck (10 %): 14.00 ft / 4.27 m
- Stern: 14.00 ft / 4.27 m
- Average freeboard: 17.60 ft / 5.36 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 177.1 %
- Above water (accommodation/working, high = better): 78.7 %
Waterplane Area: 9,496 Square feet or 882 Square metres
Displacement factor (Displacement / loading): 77 %
Structure weight / hull surface area: 42 lbs/sq ft or 204 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.48
- Overall: 0.59
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped

Improved light-weight Automated Dual-Purpose twin 5.5" guns simmed as 1940 Automatics.

30 tons - additional weight of DP mounts (10 tons per)
30 tons - ASW and Radar

Tribal class (Batch IV), Repeat Batch III design with modern updates.

- HMCS Metis
- HMCS Chippewa
- HMCS Arapaho
- HMCS Assiniboin
- HMCS Atsina
- HMCS Hidatsa
- HMCS Kutenai
- HMCS Tionontati



HMCS Metis, Canadian Destroyer laid down 1946

Displacement:
2,500 t light; 2,684 t standard; 3,047 t normal; 3,337 t full load

Dimensions: Length overall / water x beam x draught
396.43 ft / 390.00 ft x 36.00 ft x 16.00 ft (normal load)
120.83 m / 118.87 m x 10.97 m x 4.88 m

Armament:
6 - 5.50" / 140 mm guns (3x2 guns), 83.19lbs / 37.73kg shells, 1946 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, majority aft, 1 raised mount aft - superfiring
6 - 2.24" / 57.0 mm guns (3x2 guns), 5.65lbs / 2.56kg shells, 1946 Model
Automatic rapid fire guns in deck mounts with hoists
on side, all amidships, all raised mounts - superfiring
12 - 0.79" / 20.0 mm guns (6x2 guns), 0.24lbs / 0.11kg shells, 1946 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 536 lbs / 243 kg
Shells per gun, main battery: 400
10 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm 0.25" / 6 mm 0.25" / 6 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 59,244 shp / 44,196 Kw = 35.00 kts
Range 7,000nm at 15.00 kts
Bunker at max displacement = 652 tons

Complement:
204 - 266

Cost:
£2.456 million / $9.826 million

Distribution of weights at normal displacement:
Armament: 80 tons, 2.6 %
Armour: 11 tons, 0.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 11 tons, 0.4 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,367 tons, 44.9 %
Hull, fittings & equipment: 926 tons, 30.4 %
Fuel, ammunition & stores: 547 tons, 17.9 %
Miscellaneous weights: 115 tons, 3.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
881 lbs / 399 Kg = 10.6 x 5.5 " / 140 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.18
Metacentric height 1.5 ft / 0.4 m
Roll period: 12.5 seconds
Steadiness - As gun platform (Average = 50 %): 56 %
- Recoil effect (Restricted arc if above 1.00): 0.88
Seaboat quality (Average = 1.00): 1.12

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.475
Length to Beam Ratio: 10.83 : 1
'Natural speed' for length: 22.47 kts
Power going to wave formation at top speed: 69 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.00 ft / 7.32 m
- Forecastle (20 %): 22.00 ft / 6.71 m
- Mid (60 %): 20.00 ft / 6.10 m (14.00 ft / 4.27 m aft of break)
- Quarterdeck (10 %): 14.00 ft / 4.27 m
- Stern: 14.00 ft / 4.27 m
- Average freeboard: 18.56 ft / 5.66 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 171.6 %
- Above water (accommodation/working, high = better): 81.3 %
Waterplane Area: 9,505 Square feet or 883 Square metres
Displacement factor (Displacement / loading): 82 %
Structure weight / hull surface area: 42 lbs/sq ft or 206 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 3.02
- Overall: 0.60
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped

30 tons - additional weight of DP mounts (10 tons per)
30 tons - ASW and Radar

Evaluation Testbed and technology demonstrator for a mass production escort design.

HMCS Defiant, Canadian Sloop laid down 1945


Displacement:
500 t light; 536 t standard; 618 t normal; 683 t full load

Dimensions: Length overall / water x beam x draught
212.82 ft / 210.00 ft x 24.00 ft x 9.75 ft (normal load)
64.87 m / 64.01 m x 7.32 m x 2.97 m

Armament:
1 - 5.50" / 140 mm guns in single mounts, 83.19lbs / 37.73kg shells, 1945 Model
Automatic rapid fire gun in a deck mount with hoist
on centreline amidships
4 - 2.24" / 57.0 mm guns (2x2 guns), 5.65lbs / 2.56kg shells, 1945 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, evenly spread
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1945 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 108 lbs / 49 kg
Shells per gun, main battery: 350
4 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Ends: 1.00" / 25 mm 20.00 ft / 6.10 m 8.00 ft / 2.44 m
190.00 ft / 57.91 m Unarmoured ends

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm - -

Machinery:
Diesel Internal combustion motors,
Geared drive, 1 shaft, 6,075 shp / 4,532 Kw = 24.00 kts
Range 4,000nm at 15.00 kts
Bunker at max displacement = 148 tons

Complement:
61 - 80

Cost:
£0.363 million / $1.451 million

Distribution of weights at normal displacement:
Armament: 16 tons, 2.6 %
Armour: 9 tons, 1.5 %
- Belts: 6 tons, 1.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3 tons, 0.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 153 tons, 24.8 %
Hull, fittings & equipment: 196 tons, 31.8 %
Fuel, ammunition & stores: 118 tons, 19.1 %
Miscellaneous weights: 125 tons, 20.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
355 lbs / 161 Kg = 4.3 x 5.5 " / 140 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.04
Metacentric height 0.6 ft / 0.2 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 46 %
- Recoil effect (Restricted arc if above 1.00): 0.62
Seaboat quality (Average = 1.00): 1.19

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.440
Length to Beam Ratio: 8.75 : 1
'Natural speed' for length: 16.85 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 35
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: 16.00 ft / 4.88 m
- Forecastle (20 %): 13.00 ft / 3.96 m
- Mid (50 %): 11.00 ft / 3.35 m
- Quarterdeck (15 %): 11.00 ft / 3.35 m
- Stern: 11.00 ft / 3.35 m
- Average freeboard: 11.94 ft / 3.64 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 124.7 %
- Above water (accommodation/working, high = better): 53.7 %
Waterplane Area: 3,312 Square feet or 308 Square metres
Displacement factor (Displacement / loading): 108 %
Structure weight / hull surface area: 27 lbs/sq ft or 130 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.52
- Longitudinal: 4.27
- Overall: 0.64
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped

Ice-strengthened forward
10 tons - additional weight of DP mounts
50 tons - ASW and Radar

River class, Canadian Sloop laid down 1945

Displacement:
1,000 t light; 1,054 t standard; 1,173 t normal; 1,269 t full load

Dimensions: Length overall / water x beam x draught
274.53 ft / 271.00 ft x 28.00 ft x 12.00 ft (normal load)
83.68 m / 82.60 m x 8.53 m x 3.66 m

Armament:
4 - 4.50" / 114 mm guns (2x2 guns), 45.56lbs / 20.67kg shells, 1945 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, evenly spread
4 - 2.24" / 57.0 mm guns (2x2 guns), 5.65lbs / 2.56kg shells, 1945 Model
Automatic rapid fire guns in deck mounts with hoists
on side, all amidships, all raised mounts - superfiring
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1945 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 207 lbs / 94 kg
Shells per gun, main battery: 250
4 - 21.0" / 533.4 mm above water torpedoes

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 20,342 shp / 15,175 Kw = 30.00 kts
Range 4,000nm at 15.00 kts
Bunker at max displacement = 215 tons

Complement:
99 - 130

Cost:
£0.859 million / $3.437 million

Distribution of weights at normal displacement:
Armament: 31 tons, 2.6 %
Machinery: 452 tons, 38.6 %
Hull, fittings & equipment: 407 tons, 34.6 %
Fuel, ammunition & stores: 173 tons, 14.8 %
Miscellaneous weights: 110 tons, 9.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
442 lbs / 200 Kg = 9.7 x 4.5 " / 114 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 0.9 ft / 0.3 m
Roll period: 12.4 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.73
Seaboat quality (Average = 1.00): 1.24

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.451
Length to Beam Ratio: 9.68 : 1
'Natural speed' for length: 18.95 kts
Power going to wave formation at top speed: 70 %
Trim (Max stability = 0, Max steadiness = 100): 40
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: 20.00 ft / 6.10 m
- Forecastle (35 %): 18.00 ft / 5.49 m
- Mid (35 %): 18.00 ft / 5.49 m (14.00 ft / 4.27 m aft of break)
- Quarterdeck (15 %): 14.00 ft / 4.27 m
- Stern: 14.00 ft / 4.27 m
- Average freeboard: 15.68 ft / 4.78 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 155.9 %
- Above water (accommodation/working, high = better): 86.3 %
Waterplane Area: 5,032 Square feet or 467 Square metres
Displacement factor (Displacement / loading): 85 %
Structure weight / hull surface area: 32 lbs/sq ft or 157 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 5.42
- Overall: 0.64
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Good seaboat, rides out heavy weather easily

10 tons - additional weight of DP mounts (5 tons per)
40 tons - ASW and Radar




River class, Canadian Sloop Leader laid down 1945

Displacement:
1,000 t light; 1,051 t standard; 1,171 t normal; 1,266 t full load

Dimensions: Length overall / water x beam x draught
274.53 ft / 271.00 ft x 28.00 ft x 12.00 ft (normal load)
83.68 m / 82.60 m x 8.53 m x 3.66 m

Armament:
2 - 5.50" / 140 mm guns in single mounts, 83.19lbs / 37.73kg shells, 1945 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, evenly spread
4 - 2.24" / 57.0 mm guns (2x2 guns), 5.65lbs / 2.56kg shells, 1945 Model
Automatic rapid fire guns in deck mounts with hoists
on side, all amidships, all raised mounts - superfiring
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1945 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 191 lbs / 87 kg
Shells per gun, main battery: 250
4 - 21.0" / 533.4 mm above water torpedoes

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 20,298 shp / 15,143 Kw = 30.00 kts
Range 4,000nm at 15.00 kts
Bunker at max displacement = 215 tons

Complement:
99 - 130

Cost:
£0.846 million / $3.385 million

Distribution of weights at normal displacement:
Armament: 29 tons, 2.4 %
Machinery: 453 tons, 38.7 %
Hull, fittings & equipment: 398 tons, 34.0 %
Fuel, ammunition & stores: 171 tons, 14.6 %
Miscellaneous weights: 120 tons, 10.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
437 lbs / 198 Kg = 5.2 x 5.5 " / 140 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 0.9 ft / 0.3 m
Roll period: 12.4 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.68
Seaboat quality (Average = 1.00): 1.26

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.450
Length to Beam Ratio: 9.68 : 1
'Natural speed' for length: 18.95 kts
Power going to wave formation at top speed: 70 %
Trim (Max stability = 0, Max steadiness = 100): 40
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: 20.00 ft / 6.10 m
- Forecastle (35 %): 18.00 ft / 5.49 m
- Mid (35 %): 18.00 ft / 5.49 m (14.00 ft / 4.27 m aft of break)
- Quarterdeck (15 %): 14.00 ft / 4.27 m
- Stern: 14.00 ft / 4.27 m
- Average freeboard: 15.68 ft / 4.78 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 155.8 %
- Above water (accommodation/working, high = better): 86.2 %
Waterplane Area: 5,028 Square feet or 467 Square metres
Displacement factor (Displacement / loading): 85 %
Structure weight / hull surface area: 32 lbs/sq ft or 154 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 5.35
- Overall: 0.63
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Good seaboat, rides out heavy weather easily

10 tons - additional weight of DP mounts (5 tons per)
40 tons - ASW and Radar