Agincourt Class Cruiser

[snip]

Two Ships
--IRS Agincourt
--IRS Dertona

UHDL-15B, Imperial Roman Republic Heavy Destroyer Leader laid down 1915

Displacement:
   6,000 t light; 6,270 t standard; 7,107 t normal; 7,776 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (501.98 ft / 492.13 ft) x 50.85 ft x (17.22 / 18.53 ft)
   (153.00 m / 150.00 m) x 15.50 m  x (5.25 / 5.65 m)

Armament:
      10 - 5.51" / 140 mm 55.0 cal guns - 85.98lbs / 39.00kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1909 Model
     5 x Twin mounts on centreline, evenly spread
      2 raised mounts
      1 - 3.94" / 100 mm 45.0 cal gun - 30.86lbs / 14.00kg shells, 175 per gun
     Anti-air gun in deck mount, 1915 Model
     1 x Single mount on centreline, aft deck forward
      1 raised mount
      8 - 1.77" / 45.0 mm 50.0 cal guns - 3.31lbs / 1.50kg shells, 350 per gun
     Quick firing guns in deck mounts, 1905 Model
     8 x Single mounts on sides, evenly spread
      4 raised mounts
      8 - 0.26" / 6.5 mm 110.0 cal guns - 0.01lbs / 0.00kg shells, 10,000 per gun
     Machine guns in deck mounts, 1911 Model
     4 x Twin mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 917 lbs / 416 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.18" / 30 mm   0.39" / 10 mm      1.38" / 35 mm
   2nd:   0.20" / 5 mm         -               -
   3rd:   0.20" / 5 mm         -               -
   4th:   0.20" / 5 mm         -               -

   - Box over machinery & magazines:
   1.38" / 35 mm

   - Conning towers: Forward 2.95" / 75 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 70,000 shp / 52,220 Kw = 31.22 kts
   Range 7,000nm at 14.00 kts
   Bunker at max displacement = 1,506 tons

Complement:
   386 - 503

Cost:
   £1.002 million / $4.010 million

Distribution of weights at normal displacement:
   Armament: 249 tons, 3.5 %
      - Guns: 249 tons, 3.5 %
   Armour: 731 tons, 10.3 %
      - Armament: 27 tons, 0.4 %
      - Armour Deck: 680 tons, 9.6 %
      - Conning Tower: 24 tons, 0.3 %
   Machinery: 2,652 tons, 37.3 %
   Hull, fittings & equipment: 2,188 tons, 30.8 %
   Fuel, ammunition & stores: 1,107 tons, 15.6 %
   Miscellaneous weights: 180 tons, 2.5 %
      - Hull above water: 50 tons
      - On freeboard deck: 100 tons
      - Above deck: 30 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,503 lbs / 2,043 Kg = 53.8 x 5.5 " / 140 mm shells or 0.8 torpedoes
   Stability (Unstable if below 1.00): 1.22
   Metacentric height 2.6 ft / 0.8 m
   Roll period: 13.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.43
   Seaboat quality  (Average = 1.00): 1.08

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.577 / 0.587
   Length to Beam Ratio: 9.68 : 1
   'Natural speed' for length: 22.18 kts
   Power going to wave formation at top speed: 62 %
   Trim (Max stability = 0, Max steadiness = 100): 56
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 2.40 ft / 0.73 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  20.51 ft / 6.25 m,  19.69 ft / 6.00 m
      - Forward deck:   30.00 %,  19.69 ft / 6.00 m,  18.86 ft / 5.75 m
      - Aft deck:   35.00 %,  18.86 ft / 5.75 m,  18.86 ft / 5.75 m
      - Quarter deck:   15.00 %,  18.86 ft / 5.75 m,  18.86 ft / 5.75 m
      - Average freeboard:      19.22 ft / 5.86 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 136.2 %
      - Above water (accommodation/working, high = better): 168.4 %
   Waterplane Area: 17,914 Square feet or 1,664 Square metres
   Displacement factor (Displacement / loading): 98 %
   Structure weight / hull surface area: 76 lbs/sq ft or 370 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.84
      - Longitudinal: 1.61
      - Overall: 0.90
   Caution: Hull subject to strain in open-sea
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room

Misc Weight Distribution
-Below Water (0t)
-Above Water (50t)
--20t Short-Range Wireless (x2)
--20t Additional Damage Control Equipment
--10t Enhanced Ventilation and Crew Comfort
-On Deck (100t)
--25t 1912 Fire Control
--24t 6x530mm Torpedo Tubes (1913)
--25t Long-Range Wireless
--15t Night Fighting Equipment
--10t Improved Leader Facilities
--1t Construction Reserve
-Above Deck (30t)
--10t Additional Optical Spotting Equipment
--10t Night Fighting Equipment
--10t Improved Signaling Equipment

Main Battery arranged A-B-(C)[SS](X)-Y with C superfiring B and X superfiring Y.
Torpedo Battery arranged in two triple mounts, one on each side forward of X mount

Cruise Speeds/SpringSharp Range
10knts/14650nm
14knts/7000nm
20knts/2885nm
25knts/1551mn
31knts/805nm

Time at Top Speed: 25.96 Hours
Fastest Speed From Brest to Havana (3943nm):17.73knts for 222.39h transit

[snip]

In 1923H1, both ships were updated to 1918 Fire Control.