Archer Class (build4), Denmark DD (aa) laid down 1932
Displacement:
1,956 t light; 2,041 t standard; 2,348 t normal; 2,594 t full load
Dimensions: Length overall / water x beam x draught
405.97 ft / 390.00 ft x 39.00 ft x 14.00 ft (normal load)
123.74 m / 118.87 m x 11.89 m x 4.27 m
Armament:
8 - 4.72" / 120 mm guns (4x2 guns), 52.72lbs / 23.91kg shells, 1930 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
10 - 1.46" / 37.0 mm guns (5x2 guns), 1.55lbs / 0.70kg shells, 1928 Model
Anti-aircraft guns in deck mounts
on side, all amidships, 4 raised mounts - superfiring
12 - 0.79" / 20.0 mm guns (6x2 guns), 0.24lbs / 0.11kg shells, 1925 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised mounts
Weight of broadside 440 lbs / 200 kg
Shells per gun, main battery: 150
8 - 21.0" / 533 mm above water torpedoes
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.59" / 15 mm -
2nd: 0.59" / 15 mm 0.59" / 15 mm -
3rd: 0.59" / 15 mm 0.59" / 15 mm -
- Conning tower: 0.79" / 20 mm
Machinery:
Oil fired boilers, steam turbines,
Electric motors, 2 shafts, 41,921 shp / 31,273 Kw = 34.00 kts
Range 10,000nm at 12.00 kts
Bunker at max displacement = 553 tons
Complement:
168 - 219
Cost:
£1.210 million / $4.839 million
Distribution of weights at normal displacement:
Armament: 55 tons, 2.3 %
Armour: 29 tons, 1.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 26 tons, 1.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 3 tons, 0.1 %
Machinery: 1,082 tons, 46.1 %
Hull, fittings & equipment: 710 tons, 30.2 %
Fuel, ammunition & stores: 392 tons, 16.7 %
Miscellaneous weights: 80 tons, 3.4 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
691 lbs / 313 Kg = 13.1 x 4.7 " / 120 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.17
Metacentric height 1.6 ft / 0.5 m
Roll period: 12.9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.59
Seaboat quality (Average = 1.00): 1.02
Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.386
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 22.90 kts
Power going to wave formation at top speed: 65 %
Trim (Max stability = 0, Max steadiness = 100): 69
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 5.00 ft / 1.52 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.00 ft / 5.79 m
- Forecastle (20 %): 17.00 ft / 5.18 m
- Mid (50 %): 15.50 ft / 4.72 m
- Quarterdeck (15 %): 14.50 ft / 4.42 m
- Stern: 14.00 ft / 4.27 m
- Average freeboard: 15.82 ft / 4.82 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 170.5 %
- Above water (accommodation/working, high = better): 108.7 %
Waterplane Area: 9,646 Square feet or 896 Square metres
Displacement factor (Displacement / loading): 78 %
Structure weight / hull surface area: 40 lbs/sq ft or 195 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.64
- Overall: 0.56
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