WesWorld

Quoted

Teniente Aldea class, US Destroyer laid down 1929 (Engine 1945)

Displacement:
1,450 t light; 1,550 t standard; 1,755 t normal; 1,918 t full load

Dimensions: Length overall / water x beam x draught
338.84 ft / 334.00 ft x 34.50 ft x 13.00 ft (normal load)
103.28 m / 101.80 m x 10.52 m x 3.96 m

Armament:
4 - 5.12" / 130 mm guns in single mounts, 67.03lbs / 30.40kg shells, 1945 Model
Dual purpose guns in deck mounts
on centreline ends, evenly spread, 2 raised mounts - superfiring
2 - 3.00" / 76.2 mm guns (1x2 guns), 13.50lbs / 6.12kg shells, 1945 Model
Dual purpose guns in deck mount
on centreline amidships, all raised guns - superfiring
8 - 1.10" / 27.9 mm guns (1x8 guns), 0.67lbs / 0.30kg shells, 1945 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
Weight of broadside 300 lbs / 136 kg
Shells per gun, main battery: 375
8 - 21.0" / 533.4 mm above water torpedoes

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

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 36,137 shp / 26,958 Kw = 33.50 kts
Range 5,500nm at 15.00 kts
Bunker at max displacement = 368 tons

Complement:
135 - 176

Cost:
£0.771 million / $3.086 million

Distribution of weights at normal displacement:
Armament: 38 tons, 2.1 %
Armour: 17 tons, 0.9 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 17 tons, 0.9 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 790 tons, 45.0 %
Hull, fittings & equipment: 556 tons, 31.7 %
Fuel, ammunition & stores: 305 tons, 17.4 %
Miscellaneous weights: 50 tons, 2.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
620 lbs / 281 Kg = 9.3 x 5.1 " / 130 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.23
Metacentric height 1.5 ft / 0.5 m
Roll period: 11.9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.31
Seaboat quality (Average = 1.00): 1.06

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.410
Length to Beam Ratio: 9.68 : 1
'Natural speed' for length: 21.16 kts
Power going to wave formation at top speed: 69 %
Trim (Max stability = 0, Max steadiness = 100): 66
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.75 ft / 6.93 m
- Forecastle (18 %): 21.00 ft / 6.40 m
- Mid (34 %): 21.00 ft / 6.40 m (13.10 ft / 3.99 m aft of break)
- Quarterdeck (18 %): 13.00 ft / 3.96 m
- Stern: 13.00 ft / 3.96 m
- Average freeboard: 15.87 ft / 4.84 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 167.3 %
- Above water (accommodation/working, high = better): 82.0 %
Waterplane Area: 7,407 Square feet or 688 Square metres
Displacement factor (Displacement / loading): 80 %
Structure weight / hull surface area: 36 lbs/sq ft or 178 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.54
- Longitudinal: 2.89
- Overall: 0.63
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

Breakdown of Miscellaneous Weights:
- 15 tons for Colocolo launchers
- 5 tons for hydrophones
- 5 tons for depth charges (24x420-lb bombs)
- 30 tons for dradis and electronics suite

2900 to rebuilt all eight ships.