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1

Sunday, April 30th 2006, 12:11am

Destroyers:Type (A)

List of ships

16xIsland class
Aruba, Barlavento, Bonaire, Curacao, El Hierro, Fuerteventura, Gran Canaria, Grenada, La Gomera, Lanzarote, La Palmas, Margarita, Sotavento, Tenerife, Trinidad, Tobago

16xH class
Hatchet, Hero, Harangue, Hazard, Hasty, Hammer, Harpoon, Hawk, Hind, Havock, Hostile, Hardy, Hornet, Hunter, Harbinger, Harrier

2

Sunday, April 30th 2006, 12:13am

Following the completion of the H class DDL's the next class of Type A destroyers were planned to be slightly larger versions of the H class. Building of this class was orriginally projected for 1932/33 but was delayed till 1936, by which time the design grew considerably larger than first envisioned and ultimately changed to large flush decked design. This class is the first class of flush decked destroyers in the Atlantean navy. Originally to be named under "I" class, their names were changed to "Islands".

Island class, names:
Aruba, Barlavento, Bonaire, Curacao, El Hierro, Fuerteventura, Gran Canaria, Grenada, La Gomera, Lanzarote, La Palmas, Margarita, Sotavento, Tenerife, Trinidad, Tobago

Island class, Atlantean destroyer leader laid down 1936

Displacement:
2,563 t light; 2,747 t standard; 3,029 t normal; 3,256 t full load

Dimensions: Length overall / water x beam x draught
436.65 ft / 425.00 ft x 44.00 ft x 14.00 ft (normal load)
133.09 m / 129.54 m x 13.41 m x 4.27 m

Armament:
8 - 5.10" / 130 mm guns (4x2 guns), 65.00lbs / 29.48kg shells, 1936 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 1.58" / 40.0 mm guns (4x2 guns), 1.95lbs / 0.88kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
12 - 0.79" / 20.0 mm guns (3x4 guns), 0.25lbs / 0.11kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
8 - 0.50" / 12.7 mm guns (4x2 guns), 0.06lbs / 0.03kg shells, 1936 Model
Breech loading guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 539 lbs / 245 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: 2.00" / 51 mm 1.00" / 25 mm 1.58" / 40 mm
2nd: 1.00" / 25 mm - -
3rd: 0.50" / 13 mm - -
4th: 0.30" / 8 mm - -

- Conning tower: 2.95" / 75 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 50,000 shp / 37,300 Kw = 34.35 kts
Range 5,000nm at 15.00 kts
Bunker at max displacement = 509 tons

Complement:
203 - 265

Cost:
£1.757 million / $7.027 million

Distribution of weights at normal displacement:
Armament: 69 tons, 2.3 %
Armour: 55 tons, 1.8 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 42 tons, 1.4 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 13 tons, 0.4 %
Machinery: 1,327 tons, 43.8 %
Hull, fittings & equipment: 1,033 tons, 34.1 %
Fuel, ammunition & stores: 466 tons, 15.4 %
Miscellaneous weights: 80 tons, 2.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,090 lbs / 494 Kg = 16.4 x 5.1 " / 130 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 1.9 ft / 0.6 m
Roll period: 13.5 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.52
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.405
Length to Beam Ratio: 9.66 : 1
'Natural speed' for length: 23.90 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 69
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26.50 ft / 8.08 m
- Forecastle (20 %): 16.50 ft / 5.03 m
- Mid (50 %): 16.50 ft / 5.03 m
- Quarterdeck (15 %): 16.50 ft / 5.03 m
- Stern: 16.50 ft / 5.03 m
- Average freeboard: 17.30 ft / 5.27 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 164.5 %
- Above water (accommodation/working, high = better): 117.1 %
Waterplane Area: 11,982 Square feet or 1,113 Square metres
Displacement factor (Displacement / loading): 87 %
Structure weight / hull surface area: 49 lbs/sq ft or 240 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.57
- Longitudinal: 1.65
- Overall: 0.64
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

20 tons for 10x21" reload torpedo's
15 tons for DC's and equipment
9 tons for sonar
8 tons for surface search radar
5 tons for diesel electric generator
3 tons for RDF equipment
2 tons for gunnery computer
18 tons for future growth

3

Saturday, May 3rd 2008, 9:48pm

H-class , Atlantis Destroyer leader laid down 1928


Hatchet, Hero, Harangue, Hazard
Hasty, Hammer, Harpoon, Hawk
Hind, Havock, Hostile, Hardy
Hornet, Hunter, Harbinger, Harrier

H-class , Atlantis Destroyer laid down 1928

Displacement:
1,768 t light; 1,866 t standard; 2,074 t normal; 2,241 t full load

Dimensions: Length overall / water x beam x draught
386.42 ft / 375.00 ft x 36.00 ft x 12.25 ft (normal load)
117.78 m / 114.30 m x 10.97 m x 3.73 m

Armament:
6 - 5.10" / 130 mm guns (3x2 guns), 66.33lbs / 30.09kg shells, 1928 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward, 1 raised mount - superfiring
2 - 1.57" / 40 mm guns in single mounts, 1.93lbs / 0.88kg shells, 1928 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
4 - 0.788" / 20 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1928 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 403 lbs / 183 kg
Shells per gun, main battery: 250
6 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm 0.79" / 20 mm -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 42,976 shp / 32,060 Kw = 33.00 kts
Range 4,000nm at 15.00 kts
Bunker at max displacement = 374 tons

Complement:
153 - 199

Cost:
£0.961 million / $3.843 million

Distribution of weights at normal displacement:
Armament: 50 tons, 2.4 %
Armour: 18 tons, 0.9 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 18 tons, 0.9 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,053 tons, 50.8 %
Hull, fittings & equipment: 622 tons, 30.0 %
Fuel, ammunition & stores: 306 tons, 14.7 %
Miscellaneous weights: 25 tons, 1.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
518 lbs / 235 Kg = 7.8 x 5.1 " / 130 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.31
Metacentric height 1.8 ft / 0.5 m
Roll period: 11.4 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.54
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.439
Length to Beam Ratio: 10.42 : 1
'Natural speed' for length: 19.36 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 59
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.50 ft / 7.47 m
- Forecastle (20 %): 20.50 ft / 6.25 m
- Mid (45 %): 20.50 ft / 6.25 m (10.50 ft / 3.20 m aft of break)
- Quarterdeck (12 %): 10.50 ft / 3.20 m
- Stern: 10.50 ft / 3.20 m
- Average freeboard: 15.32 ft / 4.67 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 184.9 %
- Above water (accommodation/working, high = better): 104.5 %
Waterplane Area: 8,536 Square feet or 793 Square metres
Displacement factor (Displacement / loading): 66 %
Structure weight / hull surface area: 38 lbs/sq ft or 184 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.60
- Overall: 0.56
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate

12 tons for DC's and equipment
9 tons for sonar
2 tons for gunnery computer
2 tons for future growth