Hi all,
I'm not sure quite how cheeky this is, but I've been thinking about an NSWE-ish solution ... I've yet to commit pen to paper (or mouse to PNG, I guess) but thought I'd get comment on whether that meets with the spirit of the rules, and also, any thoughts on feasibility of the spoiler'd SpringSharp...
This ship is deliberately overbuilt in the Treaty configuration, as a switch to 3x2 203mm (that is, three twin turrets) is planned for. If it's a good design, might well keep it as NSWE's WNT Light Cruiser, although it does sacrifice some machinery space to a longer-than-usual forecastle and stern (note the good seakeeping, always a concern for NSWE)
SchnellKreuzer 1930, New Saxe-Weimar-Eisenach Light Cruiser laid down 1930
Displacement:
8,774 t light; 9,074 t standard; 9,916 t normal; 10,590 t full load
Dimensions: Length overall / water x beam x draught
599.37 ft / 574.15 ft x 59.06 ft x 21.33 ft (normal load)
182.69 m / 175.00 m x 18.00 m x 6.50 m
Armament:
9 - 5.87" / 149 mm guns (3x3 guns), 100.31lbs / 45.50kg shells, 1930 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority aft, 1 raised mount aft - superfiring
10 - 3.46" / 88.0 mm guns in single mounts, 22.05lbs / 10.00kg shells, 1930 Model
Quick firing guns in deck mounts with hoists
on side, all amidships, 4 raised mounts - superfiring
12 - 1.46" / 37.0 mm guns (6x2 guns), 1.64lbs / 0.74kg shells, 1930 Model
Quick firing guns in deck mounts
on side, evenly spread
Weight of broadside 1,143 lbs / 518 kg
Shells per gun, main battery: 150
12 - 21.0" / 533 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.94" / 100 mm 315.78 ft / 96.25 m 9.22 ft / 2.81 m
Ends: 0.79" / 20 mm 258.33 ft / 78.74 m 9.22 ft / 2.81 m
Main Belt covers 85 % of normal length
Main belt does not fully cover magazines and engineering spaces
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.94" / 100 mm 1.97" / 50 mm 3.94" / 100 mm
2nd: 1.97" / 50 mm 0.98" / 25 mm 1.97" / 50 mm
3rd: 1.57" / 40 mm 0.79" / 20 mm -
- Armour deck: 1.57" / 40 mm, Conning tower: 1.97" / 50 mm
Machinery:
Oil fired boilers, steam turbines plus diesel motors,
Electric motors, 2 shafts, 82,470 shp / 61,522 Kw = 33.00 kts
Range 4,000nm at 19.00 kts
Bunker at max displacement = 1,515 tons
Complement:
496 - 645
Cost:
£3.246 million / $12.986 million
Distribution of weights at normal displacement:
Armament: 142 tons, 1.4 %
Armour: 1,545 tons, 15.6 %
- Belts: 560 tons, 5.7 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 294 tons, 3.0 %
- Armour Deck: 672 tons, 6.8 %
- Conning Tower: 20 tons, 0.2 %
Machinery: 2,499 tons, 25.2 %
Hull, fittings & equipment: 4,438 tons, 44.8 %
Fuel, ammunition & stores: 1,142 tons, 11.5 %
Miscellaneous weights: 150 tons, 1.5 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
13,914 lbs / 6,311 Kg = 137.6 x 5.9 " / 149 mm shells or 1.7 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 2.8 ft / 0.9 m
Roll period: 14.8 seconds
Steadiness - As gun platform (Average = 50 %): 64 %
- Recoil effect (Restricted arc if above 1.00): 0.40
Seaboat quality (Average = 1.00): 1.28
Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.480
Length to Beam Ratio: 9.72 : 1
'Natural speed' for length: 27.47 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 32.50 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 34.45 ft / 10.50 m
- Forecastle (25 %): 24.61 ft / 7.50 m
- Mid (60 %): 24.61 ft / 7.50 m
- Quarterdeck (20 %): 14.76 ft / 4.50 m
- Stern: 14.76 ft / 4.50 m
- Average freeboard: 22.64 ft / 6.90 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 95.0 %
- Above water (accommodation/working, high = better): 152.9 %
Waterplane Area: 23,064 Square feet or 2,143 Square metres
Displacement factor (Displacement / loading): 127 %
Structure weight / hull surface area: 110 lbs/sq ft or 539 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.03
- Longitudinal: 2.31
- Overall: 1.12
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily
Regards,
Adam
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