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1

Thursday, January 24th 2019, 3:19am

Destroyers

Admiralty Island class Heavy Destroyer
- DD Admiralty Isl (1929)

Keeling Island class Heavy Destroyer
- DD Keeling Isl (1934)
- DD Wessel Isl (1934)
- DD Norfolk Isl (1935)

Charon class Heavy Destroyer
- DD Charon (1)
- DD Charon (2)
- DD Charon (3)
- DD Charon (4)

Aclarity class Destroyer (1928)
- DD Aclarity
- DD Audacity
- DD Adventure
- DD Advantage
- DD Ambush (1931)

Dauntless class Destroyer (1933)
- DD Dauntless
- DD Devastor
- DD Defence
- DD Defiance
- DD Desperate

Firefly class Destroyer (1935)
- DD Firefly
- DD Falcon
- DD Flanker
- DD Firefox
- DD Flamingo

2

Thursday, January 24th 2019, 3:22am

DD Alacrity class
HMAS Alacrity
HMAS Audacity
HMAS Adventure
HMAS Advantage
HMAS Ambush

DD Dauntless class
HMAS Dauntless
HMAS Devastator
HMAS Defense
HMAS Defiance
HMAS Desperate

DD Firefly class
HMAS Firefly
HMAS Falcon
HMAS Flanker
HMAS Firefox
HMAS Flamingo

HMAS Alacrity, Australia Destroyer laid down 1928


Displacement:
1,547 t light; 1,625 t standard; 1,895 t normal; 2,111 t full load

Dimensions: Length overall / water x beam x draught
371.92 ft / 370.00 ft x 35.00 ft x 12.90 ft (normal load)
113.36 m / 112.78 m x 10.67 m x 3.93 m

Armament:
4 - 4.72" / 120 mm guns in single mounts, 52.58lbs / 23.85kg shells, 1928 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
1 - 4.72" / 120 mm guns in single mounts, 52.58lbs / 23.85kg shells, 1928 Model
Dual purpose gun in a deck mount with hoist
on centreline amidships
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.89kg shells, 1928 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
10 - 0.79" / 20.0 mm guns (5x2 guns), 0.24lbs / 0.11kg shells, 1928 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 273 lbs / 124 kg
Shells per gun, main battery: 250
8 - 21.0" / 533.4 mm above water torpedoes

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

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 33,454 shp / 24,957 Kw = 33.00 kts
Range 5,900nm at 15.00 kts
Bunker at max displacement = 485 tons

Complement:
143 - 186

Cost:
£0.798 million / $3.193 million

Distribution of weights at normal displacement:
Armament: 34 tons, 1.8 %
Armour: 13 tons, 0.7 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 13 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 902 tons, 47.6 %
Hull, fittings & equipment: 578 tons, 30.5 %
Fuel, ammunition & stores: 348 tons, 18.4 %
Miscellaneous weights: 20 tons, 1.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
586 lbs / 266 Kg = 11.1 x 4.7 " / 120 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.32
Metacentric height 1.7 ft / 0.5 m
Roll period: 11.3 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.44
Seaboat quality (Average = 1.00): 1.25

Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0.397
Length to Beam Ratio: 10.57 : 1
'Natural speed' for length: 22.16 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 56
Bow angle (Positive = bow angles forward): 5.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.90 ft / 6.68 m
- Forecastle (30 %): 19.00 ft / 5.79 m (14.00 ft / 4.27 m aft of break)
- Mid (50 %): 14.00 ft / 4.27 m
- Quarterdeck (15 %): 14.00 ft / 4.27 m
- Stern: 14.00 ft / 4.27 m
- Average freeboard: 15.85 ft / 4.83 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 169.7 %
- Above water (accommodation/working, high = better): 88.4 %
Waterplane Area: 8,259 Square feet or 767 Square metres
Displacement factor (Displacement / loading): 79 %
Structure weight / hull surface area: 35 lbs/sq ft or 169 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.49
- Longitudinal: 2.04
- Overall: 0.57
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

3

Thursday, January 24th 2019, 3:23am

HMAS Admirality Isl, Australia Destroyer Leader laid down 1929


Displacement:
1,953 t light; 2,061 t standard; 2,477 t normal; 2,810 t full load

Dimensions: Length overall / water x beam x draught
401.92 ft / 400.00 ft x 39.00 ft x 14.00 ft (normal load)
122.50 m / 121.92 m x 11.89 m x 4.27 m

Armament:
5 - 4.72" / 120 mm guns in single mounts, 52.58lbs / 23.85kg shells, 1929 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority aft, 2 raised mounts - superfiring
2 - 4.72" / 120 mm guns in single mounts, 52.58lbs / 23.85kg shells, 1929 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships
8 - 1.57" / 40.0 mm guns (2x4 guns), 1.95lbs / 0.88kg shells, 1929 Model
Anti-aircraft guns in deck mounts
on centreline, evenly spread
10 - 0.79" / 20.0 mm guns (5x2 guns), 0.24lbs / 0.11kg shells, 1929 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 386 lbs / 175 kg
Shells per gun, main battery: 250
8 - 21.0" / 533.4 mm above water torpedoes

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

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 38,241 shp / 28,528 Kw = 33.00 kts
Range 7,900nm at 15.00 kts
Bunker at max displacement = 749 tons

Complement:
175 - 228

Cost:
£1.055 million / $4.220 million

Distribution of weights at normal displacement:
Armament: 48 tons, 1.9 %
Armour: 16 tons, 0.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 16 tons, 0.6 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,106 tons, 44.6 %
Hull, fittings & equipment: 743 tons, 30.0 %
Fuel, ammunition & stores: 524 tons, 21.2 %
Miscellaneous weights: 40 tons, 1.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
874 lbs / 396 Kg = 16.6 x 4.7 " / 120 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.36
Metacentric height 2.1 ft / 0.6 m
Roll period: 11.3 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.42
Seaboat quality (Average = 1.00): 1.25

Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0.397
Length to Beam Ratio: 10.26 : 1
'Natural speed' for length: 23.10 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 56
Bow angle (Positive = bow angles forward): 5.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.90 ft / 6.68 m
- Forecastle (30 %): 19.00 ft / 5.79 m (15.00 ft / 4.57 m aft of break)
- Mid (50 %): 15.00 ft / 4.57 m
- Quarterdeck (15 %): 15.00 ft / 4.57 m
- Stern: 15.00 ft / 4.57 m
- Average freeboard: 16.55 ft / 5.04 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 162.1 %
- Above water (accommodation/working, high = better): 105.0 %
Waterplane Area: 9,949 Square feet or 924 Square metres
Displacement factor (Displacement / loading): 89 %
Structure weight / hull surface area: 39 lbs/sq ft or 191 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.52
- Longitudinal: 1.79
- Overall: 0.59
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
Good seaboat, rides out heavy weather easily

4

Thursday, January 24th 2019, 3:24am

Keeling Isl class, Australia Destroyer Leader laid down 1933

Displacement:
2,458 t light; 2,604 t standard; 3,321 t normal; 3,895 t full load

Dimensions: Length overall / water x beam x draught
426.26 ft / 420.00 ft x 41.00 ft x 15.00 ft (normal load)
129.92 m / 128.02 m x 12.50 m x 4.57 m

Armament:
10 - 4.70" / 119 mm guns (5x2 guns), 51.91lbs / 23.55kg shells, 1933 Model
Dual purpose guns in deck mounts with hoists
on centreline, evenly spread, 2 raised mounts
12 - 1.57" / 40.0 mm guns (3x4 guns), 1.95lbs / 0.88kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on centreline, evenly spread
20 - 0.79" / 20.0 mm guns (10x2 guns), 0.24lbs / 0.11kg shells, 1933 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 547 lbs / 248 kg
Shells per gun, main battery: 250
8 - 21.0" / 533.4 mm above water torpedoes

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

- Conning tower: 1.20" / 30 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 46,572 shp / 34,743 Kw = 33.00 kts
Range 12,000nm at 15.00 kts
Bunker at max displacement = 1,291 tons

Complement:
218 - 284

Cost:
£1.572 million / $6.289 million

Distribution of weights at normal displacement:
Armament: 68 tons, 2.1 %
Armour: 33 tons, 1.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 27 tons, 0.8 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 6 tons, 0.2 %
Machinery: 1,350 tons, 40.7 %
Hull, fittings & equipment: 932 tons, 28.1 %
Fuel, ammunition & stores: 863 tons, 26.0 %
Miscellaneous weights: 75 tons, 2.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,321 lbs / 599 Kg = 25.5 x 4.7 " / 119 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.32
Metacentric height 2.2 ft / 0.7 m
Roll period: 11.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.55
Seaboat quality (Average = 1.00): 1.22

Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0.450
Length to Beam Ratio: 10.24 : 1
'Natural speed' for length: 23.49 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 57
Bow angle (Positive = bow angles forward): 9.00 degrees
Stern overhang: 2.46 ft / 0.75 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.00 ft / 7.32 m
- Forecastle (17 %): 20.00 ft / 6.10 m (17.00 ft / 5.18 m aft of break)
- Mid (50 %): 17.00 ft / 5.18 m
- Quarterdeck (19 %): 17.00 ft / 5.18 m
- Stern: 17.00 ft / 5.18 m
- Average freeboard: 17.78 ft / 5.42 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 150.9 %
- Above water (accommodation/working, high = better): 115.2 %
Waterplane Area: 11,410 Square feet or 1,060 Square metres
Displacement factor (Displacement / loading): 99 %
Structure weight / hull surface area: 42 lbs/sq ft or 207 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.52
- Longitudinal: 1.78
- Overall: 0.59
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
Good seaboat, rides out heavy weather easily

5

Thursday, January 24th 2019, 3:28am

HMAS Charon, Australia Oceanic Destroyer laid down 1943

Displacement:
2,702 t light; 2,873 t standard; 3,436 t normal; 3,886 t full load

Dimensions: Length overall / water x beam x draught
425.94 ft / 420.00 ft x 42.00 ft x 17.00 ft (normal load)
129.83 m / 128.02 m x 12.80 m x 5.18 m

Armament:
10 - 4.72" / 120 mm guns (5x2 guns), 52.58lbs / 23.85kg shells, 1943 Model
Dual purpose guns in deck mounts with hoists
on centreline, evenly spread, 2 raised mounts
12 - 1.57" / 40.0 mm guns (3x4 guns), 1.95lbs / 0.89kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on centreline, evenly spread
20 - 0.79" / 20.0 mm guns (10x2 guns), 0.24lbs / 0.11kg shells, 1943 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 554 lbs / 251 kg
Shells per gun, main battery: 320
8 - 21.0" / 533.4 mm above water torpedoes

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

- Conning tower: 1.20" / 30 mm

Machinery:
Oil fired boilers, steam turbines,
Electric motors, 4 shafts, 46,207 shp / 34,470 Kw = 33.00 kts
Range 10,000nm at 15.00 kts
Bunker at max displacement = 1,012 tons

Complement:
223 - 291

Cost:
£2.093 million / $8.374 million

Distribution of weights at normal displacement:
Armament: 69 tons, 2.0 %
Armour: 33 tons, 1.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 27 tons, 0.8 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 6 tons, 0.2 %
Machinery: 1,193 tons, 34.7 %
Hull, fittings & equipment: 987 tons, 28.7 %
Fuel, ammunition & stores: 733 tons, 21.3 %
Miscellaneous weights: 420 tons, 12.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,402 lbs / 636 Kg = 26.7 x 4.7 " / 120 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 1.6 ft / 0.5 m
Roll period: 14.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.64
Seaboat quality (Average = 1.00): 1.23

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.401
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 23.70 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 57
Bow angle (Positive = bow angles forward): 9.00 degrees
Stern overhang: 2.46 ft / 0.75 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.00 ft / 6.71 m
- Forecastle (15 %): 20.00 ft / 6.10 m
- Mid (50 %): 20.00 ft / 6.10 m (15.00 ft / 4.57 m aft of break)
- Quarterdeck (15 %): 15.00 ft / 4.57 m
- Stern: 15.00 ft / 4.57 m
- Average freeboard: 17.62 ft / 5.37 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 142.9 %
- Above water (accommodation/working, high = better): 115.9 %
Waterplane Area: 11,275 Square feet or 1,048 Square metres
Displacement factor (Displacement / loading): 101 %
Structure weight / hull surface area: 45 lbs/sq ft or 220 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.53
- Longitudinal: 1.94
- Overall: 0.61
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
Good seaboat, rides out heavy weather easily