D-180 Class
This is a "special", since the Iberians have not laid down a destroyer for a few years now.
The main battery is located in A, B(s) and
s), with the two 57mm mountings staggered amidships in about the Q location.
A new Squid-like ahead-throwing ASW weapon is being trialed. I've allocated 30 t for it, pending further information, but there is enough miscellaneous weight to support a larger mount weight. The reasons for Iberia adopting such are:
1) No shortage of submarine action in the China War, so there is cause for concern.
2) Its installation on the quarterdeck doesn't take away from the type's main gun battery. This is an issue for Iberian destroyermen who want a strong broadside available for mass combat with Mexican hordes.
3) From the out-of-character perspective, I've already got Bharat dealing in ASW rockets, so Iberia can do mortars.
One unit will be laid down, with (notionally) five others following in 1946. Subsequently, Iberia would dedicate resources for consistent construction of six destroyers per year.
D-180, laid down 1945
Special D, laid down 1945
Displacement:
2,115 t light; 2,266 t standard; 2,644 t normal; 2,947 t full load
Dimensions: Length overall / water x beam x draught
430.99 ft / 419.95 ft x 42.65 ft x 12.30 ft (normal load)
131.37 m / 128.00 m x 13.00 m x 3.75 m
Armament:
6 - 5.12" / 130 mm guns (3x2 guns), 67.03lbs / 30.40kg shells, 1945 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward, 2 raised mounts - superfiring
4 - 2.24" / 57.0 mm guns (2x2 guns), 5.65lbs / 2.56kg shells, 1945 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
8 - 0.98" / 25.0 mm guns (4x2 guns), 0.48lbs / 0.22kg shells, 1945 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 429 lbs / 194 kg
Shells per gun, main battery: 400
4 - 23.6" / 600 mm above water torpedoes
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.79" / 20 mm 0.39" / 10 mm 0.39" / 10 mm
3rd: 0.39" / 10 mm - -
4th: 0.39" / 10 mm - -
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 45,000 shp / 33,570 Kw = 34.04 kts
Range 8,000nm at 15.00 kts
Bunker at max displacement = 681 tons
Complement:
183 - 239
Cost:
£1.881 million / $7.525 million
Distribution of weights at normal displacement:
Armament: 54 tons, 2.0 %
Armour: 12 tons, 0.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 12 tons, 0.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,095 tons, 41.4 %
Hull, fittings & equipment: 805 tons, 30.4 %
Fuel, ammunition & stores: 530 tons, 20.0 %
Miscellaneous weights: 149 tons, 5.6 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
974 lbs / 442 Kg = 14.5 x 5.1 " / 130 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.20
Metacentric height 2.0 ft / 0.6 m
Roll period: 12.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.46
Seaboat quality (Average = 1.00): 1.03
Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.420
Length to Beam Ratio: 9.85 : 1
'Natural speed' for length: 23.66 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 68
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.33 ft / 6.50 m
- Forecastle (20 %): 16.40 ft / 5.00 m
- Mid (50 %): 16.40 ft / 5.00 m
- Quarterdeck (15 %): 16.40 ft / 5.00 m
- Stern: 16.40 ft / 5.00 m
- Average freeboard: 16.80 ft / 5.12 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 158.0 %
- Above water (accommodation/working, high = better): 159.4 %
Waterplane Area: 11,592 Square feet or 1,077 Square metres
Displacement factor (Displacement / loading): 92 %
Structure weight / hull surface area: 40 lbs/sq ft or 198 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.37
- Overall: 0.55
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform