WesWorld

Chosen’s Naval Developments – Q3/1925

A. Industrial Allocation

1/4 factories producing warship material = 1,000 t. 303t stockpiled materials available. 1,303 t are used, 0 tons materials stockpiled.

3/4 factories are dedicated to producing infrastructure material, = 0.3 pts.

B. Infrastructure Development

D0 at Dairen, 0.9 points

C. Naval Construction

Ryojun
D0: idle
D1: Tatsuta reconstruction: completed

Dairen
D0: under costruction
D1: C-D-1 laid down 7/1/25. Receives 651 tons.
D2: C-D-2 laid down 7/1/25. Receives 652 tons.

D. Transactions

None.

E. Other Notes

New units laid down this quarter:
C-D-1 and C-D-2 laid down (no names available yet). Requires 1,593 tons and 11 months.

F. Updated Order of Battle, 30/9/25

Note: Y)+Z = completed (under repair/refit) + under construction

Battle Cruiser: 0(0)+1(*)
Carrier: 0(0)+1(*)
Heavy Cruiser: 0(0)+1(*)
Armored Cruiser: 2(0)+0
1st class Cruiser: 2(0)+0
Light Cruiser: 0(0)+2(*)
2nd class Cruiser: 2(1)+0
Protected Cruiser: 4(0)+0
Gunboats: 2(1)+0
River Gunboats: 2(0)+0
Destroyers 2nd class: 2(0)+2
Destroyers 3rd class: 6(0)+0
TPB 1st class: 6(0)+0
TPB 2nd class: 7(0)+0

(*) under construction in Japan

No-name (need to look at the books and seach the net for suitable names for all those ships), Chosen/Formosa (Japanese design) Destroyer laid down 1925

Displacement:
1,593 t light; 1,652 t standard; 1,891 t normal; 2,082 t full load

Dimensions: Length overall / water x beam x draught
390.00 ft / 390.00 ft x 33.40 ft x 12.70 ft (normal load)
118.87 m / 118.87 m x 10.18 m x 3.87 m

Armament:
4 - 4.13" / 105 mm guns in single mounts, 36.00lbs / 16.33kg shells, 1921 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 1.57" / 40.0 mm guns (2x4 guns), 2.00lbs / 0.91kg shells, 1923 Model
Anti-aircraft guns in deck mounts
on side, all amidships
12 - 0.98" / 25.0 mm guns (4x3 guns), 0.57lbs / 0.26kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 167 lbs / 76 kg
Shells per gun, main battery: 200
8 - 24.0" / 610 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm - 1.00" / 25 mm
2nd: 1.00" / 25 mm - -
3rd: 1.00" / 25 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 39,054 shp / 29,134 Kw = 34.50 kts
Range 5,000nm at 15.00 kts
Bunker at max displacement = 430 tons

Complement:
143 - 186

Cost:
£0.697 million / $2.790 million

Distribution of weights at normal displacement:
Armament: 20 tons, 1.1 %
Armour: 12 tons, 0.7 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 12 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,002 tons, 53.0 %
Hull, fittings & equipment: 509 tons, 26.9 %
Fuel, ammunition & stores: 297 tons, 15.7 %
Miscellaneous weights: 50 tons, 2.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
458 lbs / 208 Kg = 13.0 x 4.1 " / 105 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.23
Metacentric height 1.4 ft / 0.4 m
Roll period: 11.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.29
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.400
Length to Beam Ratio: 11.68 : 1
'Natural speed' for length: 22.56 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 69
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.00 ft / 6.71 m
- Forecastle (20 %): 13.20 ft / 4.02 m
- Mid (50 %): 13.20 ft / 4.02 m
- Quarterdeck (15 %): 13.20 ft / 4.02 m
- Stern: 13.20 ft / 4.02 m
- Average freeboard: 13.90 ft / 4.24 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 182.5 %
- Above water (accommodation/working, high = better): 65.3 %
Waterplane Area: 8,321 Square feet or 773 Square metres
Displacement factor (Displacement / loading): 68 %
Structure weight / hull surface area: 32 lbs/sq ft or 157 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.27
- Overall: 0.55
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