The GB/CA/1921 design

This is the "heavy cruiser" version of my basic design. This ship has a 4in belt with a 2in deck. The main armament consists of 8-9.2in/50 BLR. The secondary armament is 6-4.7in AA guns. There are also 16-21in TT. The maximum speed is 33 knots. The range is still 8500nm. This is the sort of cruiser killer that Frank Fox told me that he liked. He didn't care for some of my more extreme, super-fast ships with a few heavy guns. I must admit that he is correct in his assessment. I have this near-fatal attraction for really extreme ships that would never be built. This is the Springsharp report:

GB/CL/1921, Great Britain Heavy Cruiser laid down 1921 (Engine 1935)

Displacement:
 14,012 t light; 14,613 t standard; 16,243 t normal; 17,548 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
 (668.56 ft / 665.00 ft) x 67.00 ft x (22.00 / 23.43 ft)
 (203.78 m / 202.69 m) x 20.42 m  x (6.71 / 7.14 m)

Armament:
      8 - 9.20" / 234 mm 50.0 cal guns - 380.00lbs / 172.37kg shells, 150 per gun
   Breech loading guns in turret on barbette mounts, 1921 Model
   4 x Twin mounts on centreline ends, evenly spread
  2 raised mounts - superfiring
      6 - 4.70" / 119 mm 45.0 cal guns - 52.35lbs / 23.75kg shells, 0 per gun
   Anti-air guns in deck and hoist mounts, 1921 Model
   6 x Single mounts on sides, aft deck forward
  6 raised mounts
      Weight of broadside 3,354 lbs / 1,521 kg
      16 - 21.0" / 533 mm, 22.00 ft / 6.71 m torpedoes - 1.425 t each, 22.803 t total
 In 4 sets of deck mounted side rotating tubes

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 4.00" / 102 mm 440.00 ft / 134.11 m 8.00 ft / 2.44 m
 Ends: Unarmoured
 Upper: 4.00" / 102 mm 380.00 ft / 115.82 m 8.00 ft / 2.44 m
   Main Belt covers 102 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  0.80" / 20 mm 440.00 ft / 134.11 m 22.00 ft / 6.71 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 5.00" / 127 mm 4.00" / 102 mm  5.00" / 127 mm

   - Protected deck - single deck: 2.00" / 51 mm For and Aft decks
 Forecastle: 2.00" / 51 mm  Quarter deck: 2.00" / 51 mm

   - Conning towers: Forward 5.00" / 127 mm,  Aft 0.00" / 0 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 127,823 shp / 95,356 Kw = 33.00 kts
 Range 8,500nm at 16.00 kts
 Bunker at max displacement = 2,935 tons

Complement:
 719 - 935

Cost:
 £3.492 million / $13.967 million

Distribution of weights at normal displacement:
 Armament: 924 tons, 5.7 %
    - Guns: 901 tons, 5.5 %
    - Torpedoes: 23 tons, 0.1 %
 Armour: 3,353 tons, 20.6 %
    - Belts: 1,092 tons, 6.7 %
    - Torpedo bulkhead: 287 tons, 1.8 %
    - Armament: 714 tons, 4.4 %
    - Armour Deck: 1,191 tons, 7.3 %
    - Conning Tower: 69 tons, 0.4 %
 Machinery: 3,631 tons, 22.4 %
 Hull, fittings & equipment: 6,104 tons, 37.6 %
 Fuel, ammunition & stores: 2,231 tons, 13.7 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   21,662 lbs / 9,826 Kg = 55.6 x 9.2 " / 234 mm shells or 2.6 torpedoes
 Stability (Unstable if below 1.00): 1.07
 Metacentric height 3.1 ft / 0.9 m
 Roll period: 16.0 seconds
 Steadiness - As gun platform (Average = 50 %): 54 %
   - Recoil effect (Restricted arc if above 1.00): 0.78
 Seaboat quality  (Average = 1.00): 1.07

Hull form characteristics:
 Hull has low quarterdeck ,
   a normal bow and a cruiser stern
 Block coefficient (normal/deep): 0.580 / 0.588
 Length to Beam Ratio: 9.93 : 1
 'Natural speed' for length: 25.79 kts
 Power going to wave formation at top speed: 57 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 7.00 degrees
 Stern overhang: -2.00 ft / -0.61 m
 Freeboard (% = length of deck as a percentage of waterline length):
    Fore end,  Aft end
    - Forecastle: 25.00 %,  29.00 ft / 8.84 m,  26.00 ft / 7.92 m
    - Forward deck: 25.00 %,  26.00 ft / 7.92 m,  25.00 ft / 7.62 m
    - Aft deck: 21.00 %,  25.00 ft / 7.62 m,  25.00 ft / 7.62 m
    - Quarter deck: 29.00 %,  17.00 ft / 5.18 m,  18.00 ft / 5.49 m
    - Average freeboard:  23.50 ft / 7.16 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 133.6 %
  - Above water (accommodation/working, high = better): 210.6 %
 Waterplane Area: 31,982 Square feet or 2,971 Square metres
 Displacement factor (Displacement / loading): 115 %
 Structure weight / hull surface area: 127 lbs/sq ft or 621 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.97
  - Longitudinal: 1.36
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent

A 7.5in gunned ship from the same design family

This is the GB/CL/1918 design with 8-7.5in guns. The ship is from the same design family as the others in this series, but has 7.5in guns in turrets, which is one major departure. This is the Springsharp report:

GB/CL/1918, Great Britain Light Cruiser laid down 1918 (Engine 1927)

Displacement:
 10,881 t light; 11,287 t standard; 12,812 t normal; 14,031 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
 (618.44 ft / 615.00 ft) x 62.00 ft x (20.00 / 21.55 ft)
 (188.50 m / 187.45 m) x 18.90 m  x (6.10 / 6.57 m)

Armament:
      8 - 7.50" / 191 mm 50.0 cal guns - 200.00lbs / 90.72kg shells, 150 per gun
   Breech loading guns in turret on barbette mounts, 1918 Model
   4 x Twin mounts on centreline ends, evenly spread
  2 raised mounts - superfiring
      8 - 4.00" / 102 mm 45.0 cal guns - 32.00lbs / 14.51kg shells, 0 per gun
   Quick firing guns in deck and hoist mounts, 1918 Model
   8 x Single mounts on sides, aft deck forward
  8 raised mounts
      Weight of broadside 1,856 lbs / 842 kg
      12 - 21.0" / 533 mm, 22.00 ft / 6.71 m torpedoes - 1.413 t each, 16.958 t total
 In 4 sets of deck mounted side rotating tubes

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 3.00" / 76 mm 410.00 ft / 124.97 m 8.00 ft / 2.44 m
 Ends: Unarmoured
 Upper: 2.00" / 51 mm 360.00 ft / 109.73 m 8.00 ft / 2.44 m
   Main Belt covers 103 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  0.70" / 18 mm 410.00 ft / 124.97 m 20.00 ft / 6.10 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 4.00" / 102 mm 3.00" / 76 mm  4.00" / 102 mm
 2nd: 2.00" / 51 mm 1.00" / 25 mm  2.00" / 51 mm

   - Protected deck - single deck: 2.00" / 51 mm For and Aft decks
 Forecastle: 2.00" / 51 mm  Quarter deck: 2.00" / 51 mm

   - Conning towers: Forward 4.00" / 102 mm,  Aft 0.00" / 0 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 101,121 shp / 75,436 Kw = 32.00 kts
 Range 8,500nm at 16.00 kts
 Bunker at max displacement = 2,744 tons

Complement:
 601 - 782

Cost:
 £2.078 million / $8.313 million

Distribution of weights at normal displacement:
 Armament: 535 tons, 4.2 %
    - Guns: 518 tons, 4.0 %
    - Torpedoes: 17 tons, 0.1 %
 Armour: 2,426 tons, 18.9 %
    - Belts: 646 tons, 5.0 %
    - Torpedo bulkhead: 212 tons, 1.7 %
    - Armament: 494 tons, 3.9 %
    - Armour Deck: 1,027 tons, 8.0 %
    - Conning Tower: 47 tons, 0.4 %
 Machinery: 3,192 tons, 24.9 %
 Hull, fittings & equipment: 4,728 tons, 36.9 %
 Fuel, ammunition & stores: 1,931 tons, 15.1 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   17,533 lbs / 7,953 Kg = 83.1 x 7.5 " / 191 mm shells or 2.2 torpedoes
 Stability (Unstable if below 1.00): 1.11
 Metacentric height 3.0 ft / 0.9 m
 Roll period: 15.0 seconds
 Steadiness - As gun platform (Average = 50 %): 57 %
   - Recoil effect (Restricted arc if above 1.00): 0.56
 Seaboat quality  (Average = 1.00): 1.14

Hull form characteristics:
 Hull has low quarterdeck ,
   a normal bow and a cruiser stern
 Block coefficient (normal/deep): 0.588 / 0.598
 Length to Beam Ratio: 9.92 : 1
 'Natural speed' for length: 24.80 kts
 Power going to wave formation at top speed: 58 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 7.00 degrees
 Stern overhang: -2.00 ft / -0.61 m
 Freeboard (% = length of deck as a percentage of waterline length):
    Fore end,  Aft end
    - Forecastle: 25.00 %,  28.00 ft / 8.53 m,  25.00 ft / 7.62 m
    - Forward deck: 25.00 %,  25.00 ft / 7.62 m,  24.00 ft / 7.32 m
    - Aft deck: 21.00 %,  24.00 ft / 7.32 m,  24.00 ft / 7.32 m
    - Quarter deck: 29.00 %,  16.00 ft / 4.88 m,  17.00 ft / 5.18 m
    - Average freeboard:  22.50 ft / 6.86 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 141.9 %
  - Above water (accommodation/working, high = better): 208.4 %
 Waterplane Area: 27,576 Square feet or 2,562 Square metres
 Displacement factor (Displacement / loading): 118 %
 Structure weight / hull surface area: 111 lbs/sq ft or 541 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.96
  - Longitudinal: 1.42
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent

The GB/CL/1918 design

My GB/CL/1918 design has 12-6in guns in twin mounts. Four mounts are on the centerline, with two superfiring twin mounts. The other two mounts are on the side, so that there is a ten gun broadside. There is now an 8-4in QF gun secondary battery that could be converted to AA guns. The torpedo armament is 12-21in TT in four triple mounts. The speed is 32 knots, which requires fairly lightweight machinery. This is the Springsharp report:

GB/CL/1918, Great Britain Light Cruiser laid down 1918 (Engine 1927)

Displacement:
 9,280 t light; 9,624 t standard; 10,678 t normal; 11,522 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
 (598.32 ft / 595.00 ft) x 58.00 ft x (19.00 / 20.20 ft)
 (182.37 m / 181.36 m) x 17.68 m  x (5.79 / 6.16 m)

Armament:
      12 - 6.00" / 152 mm 50.0 cal guns - 114.33lbs / 51.86kg shells, 150 per gun
   Quick firing guns in deck and hoist mounts, 1918 Model
   4 x Twin mounts on centreline ends, evenly spread
  4 raised mounts - superfiring
   2 x Twin mounts on sides, forward deck aft
      8 - 4.00" / 102 mm 45.0 cal guns - 32.00lbs / 14.51kg shells, 0 per gun
   Quick firing guns in deck and hoist mounts, 1918 Model
   8 x Single mounts on sides, aft deck forward
  8 raised mounts
      Weight of broadside 1,628 lbs / 738 kg
      12 - 21.0" / 533 mm, 22.00 ft / 6.71 m torpedoes - 1.413 t each, 16.958 t total
 In 4 sets of deck mounted side rotating tubes

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 3.00" / 76 mm 390.00 ft / 118.87 m 8.00 ft / 2.44 m
 Ends: Unarmoured
 Upper: 2.00" / 51 mm 340.00 ft / 103.63 m 8.00 ft / 2.44 m
   Main Belt covers 101 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  0.70" / 18 mm 390.00 ft / 118.87 m 19.00 ft / 5.79 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 4.00" / 102 mm 3.00" / 76 mm  4.00" / 102 mm
 2nd: 2.00" / 51 mm 1.00" / 25 mm  2.00" / 51 mm

   - Protected deck - single deck: 2.00" / 51 mm For and Aft decks
 Forecastle: 2.00" / 51 mm  Quarter deck: 2.00" / 51 mm

   - Conning towers: Forward 4.00" / 102 mm,  Aft 0.00" / 0 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 90,392 shp / 67,433 Kw = 32.00 kts
 Range 6,500nm at 16.00 kts
 Bunker at max displacement = 1,897 tons

Complement:
 524 - 682

Cost:
 £1.787 million / $7.146 million

Distribution of weights at normal displacement:
 Armament: 413 tons, 3.9 %
    - Guns: 396 tons, 3.7 %
    - Torpedoes: 17 tons, 0.2 %
 Armour: 1,980 tons, 18.5 %
    - Belts: 612 tons, 5.7 %
    - Torpedo bulkhead: 192 tons, 1.8 %
    - Armament: 220 tons, 2.1 %
    - Armour Deck: 914 tons, 8.6 %
    - Conning Tower: 42 tons, 0.4 %
 Machinery: 2,853 tons, 26.7 %
 Hull, fittings & equipment: 4,033 tons, 37.8 %
 Fuel, ammunition & stores: 1,399 tons, 13.1 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   13,915 lbs / 6,312 Kg = 128.8 x 6.0 " / 152 mm shells or 1.8 torpedoes
 Stability (Unstable if below 1.00): 1.12
 Metacentric height 2.7 ft / 0.8 m
 Roll period: 14.7 seconds
 Steadiness - As gun platform (Average = 50 %): 59 %
   - Recoil effect (Restricted arc if above 1.00): 0.65
 Seaboat quality  (Average = 1.00): 1.17

Hull form characteristics:
 Hull has low quarterdeck ,
   a normal bow and a cruiser stern
 Block coefficient (normal/deep): 0.570 / 0.578
 Length to Beam Ratio: 10.26 : 1
 'Natural speed' for length: 24.39 kts
 Power going to wave formation at top speed: 58 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 7.00 degrees
 Stern overhang: -2.00 ft / -0.61 m
 Freeboard (% = length of deck as a percentage of waterline length):
    Fore end,  Aft end
    - Forecastle: 25.00 %,  27.00 ft / 8.23 m,  24.00 ft / 7.32 m
    - Forward deck: 25.00 %,  24.00 ft / 7.32 m,  23.00 ft / 7.01 m
    - Aft deck: 21.00 %,  23.00 ft / 7.01 m,  23.00 ft / 7.01 m
    - Quarter deck: 29.00 %,  15.00 ft / 4.57 m,  16.00 ft / 4.88 m
    - Average freeboard:  21.50 ft / 6.55 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 154.7 %
  - Above water (accommodation/working, high = better): 203.5 %
 Waterplane Area: 24,540 Square feet or 2,280 Square metres
 Displacement factor (Displacement / loading): 115 %
 Structure weight / hull surface area: 103 lbs/sq ft or 503 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.96
  - Longitudinal: 1.48
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent

More about the GB/CL/1916 design

I looked again at the GB/CL/1916 design. The armament includes 10-6in/50 QF guns. They are in two twin 6in mounts, one at the bow and one at the stern. There are also six single guns, three on each side, amidships ("fore deck, aft" in Springsharp parlance). That gives a seven gun broadside. Realistic fire ahead and astern is just two guns, but for targets that are off center, perhaps as many as five guns could be fired.

The GB/CL/1916 design

This is my GB/CL/1916 design for a cruiser designed for overseas service and convoying. This type is intended to replace ships such as the cruisers Challenger and Highflyer. Good seakeeping is therefore a priority with a sufficient gun armament to fight German raiding light cruisers, if any were to be dispatched. This is the Springsharp report:

GB/CL/1916, Great Britain Light Cruiser laid down 1916 (Engine 1919)

Displacement:
 6,391 t light; 6,640 t standard; 7,436 t normal; 8,072 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
 (528.07 ft / 525.00 ft) x 51.00 ft x (18.00 / 19.20 ft)
 (160.96 m / 160.02 m) x 15.54 m  x (5.49 / 5.85 m)

Armament:
      10 - 6.00" / 152 mm 50.0 cal guns - 114.33lbs / 51.86kg shells, 150 per gun
   Quick firing guns in deck and hoist mounts, 1916 Model
   2 x Twin mounts on centreline aft
   6 x Single mounts on sides, forward deck aft
      Weight of broadside 1,143 lbs / 519 kg
      4 - 21.0" / 533 mm, 20.00 ft / 6.10 m torpedoes - 1.287 t each, 5.148 t total
 In 2 sets of deck mounted side rotating tubes

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 3.00" / 76 mm 410.00 ft / 124.97 m 8.00 ft / 2.44 m
 Ends: Unarmoured
 Upper: 3.00" / 76 mm 300.00 ft / 91.44 m 8.00 ft / 2.44 m
   Main Belt covers 120 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  0.70" / 18 mm 410.00 ft / 124.97 m 17.00 ft / 5.18 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 4.00" / 102 mm 3.00" / 76 mm  4.00" / 102 mm

   - Protected deck - single deck: 2.00" / 51 mm For and Aft decks
 Forecastle: 2.00" / 51 mm  Quarter deck: 2.00" / 51 mm

   - Conning towers: Forward 4.00" / 102 mm,  Aft 0.00" / 0 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 2 shafts, 43,738 shp / 32,628 Kw = 28.00 kts
 Range 5,500nm at 16.00 kts
 Bunker at max displacement = 1,432 tons

Complement:
 399 - 520

Cost:
 £0.918 million / $3.673 million

Distribution of weights at normal displacement:
 Armament: 326 tons, 4.4 %
    - Guns: 321 tons, 4.3 %
    - Torpedoes: 5 tons, 0.1 %
 Armour: 1,799 tons, 24.2 %
    - Belts: 694 tons, 9.3 %
    - Torpedo bulkhead: 181 tons, 2.4 %
    - Armament: 203 tons, 2.7 %
    - Armour Deck: 689 tons, 9.3 %
    - Conning Tower: 33 tons, 0.4 %
 Machinery: 1,553 tons, 20.9 %
 Hull, fittings & equipment: 2,713 tons, 36.5 %
 Fuel, ammunition & stores: 1,045 tons, 14.1 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   11,955 lbs / 5,423 Kg = 110.7 x 6.0 " / 152 mm shells or 1.9 torpedoes
 Stability (Unstable if below 1.00): 1.07
 Metacentric height 2.1 ft / 0.6 m
 Roll period: 14.8 seconds
 Steadiness - As gun platform (Average = 50 %): 83 %
   - Recoil effect (Restricted arc if above 1.00): 0.74
 Seaboat quality  (Average = 1.00): 1.66

Hull form characteristics:
 Hull has low quarterdeck ,
   a normal bow and a cruiser stern
 Block coefficient (normal/deep): 0.540 / 0.549
 Length to Beam Ratio: 10.29 : 1
 'Natural speed' for length: 22.91 kts
 Power going to wave formation at top speed: 53 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 7.00 degrees
 Stern overhang: -3.00 ft / -0.91 m
 Freeboard (% = length of deck as a percentage of waterline length):
    Fore end,  Aft end
    - Forecastle: 25.00 %,  25.00 ft / 7.62 m,  23.00 ft / 7.01 m
    - Forward deck: 25.00 %,  23.00 ft / 7.01 m,  22.00 ft / 6.71 m
    - Aft deck: 21.00 %,  22.00 ft / 6.71 m,  22.00 ft / 6.71 m
    - Quarter deck: 29.00 %,  14.00 ft / 4.27 m,  15.00 ft / 4.57 m
    - Average freeboard:  20.40 ft / 6.22 m
 Ship tends to be wet forward

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 136.9 %
  - Above water (accommodation/working, high = better): 192.9 %
 Waterplane Area: 18,512 Square feet or 1,720 Square metres
 Displacement factor (Displacement / loading): 123 %
 Structure weight / hull surface area: 87 lbs/sq ft or 423 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.93
  - Longitudinal: 1.92
  - Overall: 1.00
 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
 Excellent seaboat, comfortable, can fire her guns in the heaviest weather

A British super destroyer for 1908

One of my ongoing interest, since the late 1960's has been super destroyers from the period starting in 1905 and beyond. I think that I had been inspired by what I had found out about the big German destroyers from late in the Great War. My 1908 design is for a British ship with 6-4in QF guns and 4-18in TT. The designed speed is 35 knots. This is the Springsharp report:

GB/DL/1908, Great Britain Destroyer Leader laid down 1908 (Engine 1943)

Displacement:
 1,859 t light; 1,922 t standard; 2,149 t normal; 2,330 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
 (374.63 ft / 372.00 ft) x 36.00 ft x (12.00 / 12.73 ft)
 (114.19 m / 113.39 m) x 10.97 m  x (3.66 / 3.88 m)

Armament:
      6 - 4.00" / 102 mm 45.0 cal guns - 32.27lbs / 14.64kg shells, 150 per gun
   Quick firing guns in deck and hoist mounts, 1908 Model
   2 x Single mounts on centreline ends, evenly spread
   4 x Single mounts on sides, evenly spread
      Weight of broadside 194 lbs / 88 kg
      4 - 18.0" / 457 mm, 21.00 ft / 6.40 m torpedoes - 0.985 t each, 3.938 t total
 In 4 sets of deck mounted side rotating tubes

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

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 2 shafts, 58,041 shp / 43,298 Kw = 35.00 kts
 Range 4,200nm at 16.00 kts
 Bunker at max displacement = 408 tons

Complement:
 157 - 205

Cost:
 £0.251 million / $1.003 million

Distribution of weights at normal displacement:
 Armament: 57 tons, 2.7 %
    - Guns: 53 tons, 2.5 %
    - Torpedoes: 4 tons, 0.2 %
 Armour: 37 tons, 1.7 %
    - Armament: 37 tons, 1.7 %
 Machinery: 1,192 tons, 55.5 %
 Hull, fittings & equipment: 573 tons, 26.7 %
 Fuel, ammunition & stores: 290 tons, 13.5 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   537 lbs / 244 Kg = 16.8 x 4.0 " / 102 mm shells or 0.3 torpedoes
 Stability (Unstable if below 1.00): 1.34
 Metacentric height 1.8 ft / 0.6 m
 Roll period: 11.2 seconds
 Steadiness - As gun platform (Average = 50 %): 54 %
   - Recoil effect (Restricted arc if above 1.00): 0.26
 Seaboat quality  (Average = 1.00): 1.07

Hull form characteristics:
 Hull has rise forward of midbreak,
   a normal bow and a round stern
 Block coefficient (normal/deep): 0.468 / 0.478
 Length to Beam Ratio: 10.33 : 1
 'Natural speed' for length: 19.29 kts
 Power going to wave formation at top speed: 70 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 6.00 degrees
 Stern overhang: 0.00 ft / 0.00 m
 Freeboard (% = length of deck as a percentage of waterline length):
    Fore end,  Aft end
    - Forecastle: 18.00 %,  25.00 ft / 7.62 m,  23.00 ft / 7.01 m
    - Forward deck: 14.00 %,  23.00 ft / 7.01 m,  23.00 ft / 7.01 m
    - Aft deck: 53.00 %,  15.00 ft / 4.57 m,  15.00 ft / 4.57 m
    - Quarter deck: 15.00 %,  15.00 ft / 4.57 m,  15.00 ft / 4.57 m
    - Average freeboard:  17.70 ft / 5.40 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 187.0 %
  - Above water (accommodation/working, high = better): 168.1 %
 Waterplane Area: 8,673 Square feet or 806 Square metres
 Displacement factor (Displacement / loading): 67 %
 Structure weight / hull surface area: 32 lbs/sq ft or 157 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.44
  - Longitudinal: 2.27
  - Overall: 0.52
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent

A 1914 versioni of my British light cruiser

This type wants greater size, but for 1914, all I was willing to do was to go up to 475ft and raise the speed to 28 knots. The second gun aft is in the superfiring position. The armament is still just 7-6in guns and 4-21in TT. The belt is 3in and the deck is 2in. They have decent range with a maximum range of 5500nm at 16 knots. This is the Springsharp report:

GB/CL/1914, Great Britain Light Cruiser laid down 1914 (Engine 1918)

Displacement:
 5,290 t light; 5,483 t standard; 6,223 t normal; 6,815 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
 (480.00 ft / 475.00 ft) x 47.00 ft x (18.00 / 19.34 ft)
 (146.30 m / 144.78 m) x 14.33 m  x (5.49 / 5.89 m)

Armament:
      7 - 6.00" / 152 mm 45.0 cal guns - 108.92lbs / 49.41kg shells, 150 per gun
   Quick firing guns in deck and hoist mounts, 1914 Model
   3 x Single mounts on centreline ends, evenly spread
  1 raised mount aft - superfiring
   4 x Single mounts on sides, forward deck aft
      Weight of broadside 762 lbs / 346 kg
      4 - 21.0" / 533 mm, 20.00 ft / 6.10 m torpedoes - 1.279 t each, 5.116 t total
 In 2 sets of deck mounted side rotating tubes

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 3.00" / 76 mm 410.00 ft / 124.97 m 8.00 ft / 2.44 m
 Ends: Unarmoured
 Upper: 3.00" / 76 mm 300.00 ft / 91.44 m 8.00 ft / 2.44 m
   Main Belt covers 133 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  0.70" / 18 mm 410.00 ft / 124.97 m 17.00 ft / 5.18 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 4.00" / 102 mm 3.00" / 76 mm  4.00" / 102 mm

   - Protected deck - single deck: 2.00" / 51 mm For and Aft decks
 Forecastle: 2.00" / 51 mm  Quarter deck: 2.00" / 51 mm

   - Conning towers: Forward 4.00" / 102 mm,  Aft 0.00" / 0 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 2 shafts, 40,863 shp / 30,484 Kw = 28.00 kts
 Range 5,500nm at 16.00 kts
 Bunker at max displacement = 1,331 tons

Complement:
 349 - 455

Cost:
 £0.590 million / $2.360 million

Distribution of weights at normal displacement:
 Armament: 208 tons, 3.3 %
    - Guns: 202 tons, 3.3 %
    - Torpedoes: 5 tons, 0.1 %
 Armour: 1,645 tons, 26.4 %
    - Belts: 684 tons, 11.0 %
    - Torpedo bulkhead: 181 tons, 2.9 %
    - Armament: 174 tons, 2.8 %
    - Armour Deck: 577 tons, 9.3 %
    - Conning Tower: 29 tons, 0.5 %
 Machinery: 1,474 tons, 23.7 %
 Hull, fittings & equipment: 1,964 tons, 31.6 %
 Fuel, ammunition & stores: 933 tons, 15.0 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   8,018 lbs / 3,637 Kg = 74.2 x 6.0 " / 152 mm shells or 1.5 torpedoes
 Stability (Unstable if below 1.00): 1.13
 Metacentric height 2.0 ft / 0.6 m
 Roll period: 13.9 seconds
 Steadiness - As gun platform (Average = 50 %): 60 %
   - Recoil effect (Restricted arc if above 1.00): 0.41
 Seaboat quality  (Average = 1.00): 1.20

Hull form characteristics:
 Hull has rise forward of midbreak,
   a ram bow and a cruiser stern
 Block coefficient (normal/deep): 0.542 / 0.552
 Length to Beam Ratio: 10.11 : 1
 'Natural speed' for length: 21.79 kts
 Power going to wave formation at top speed: 56 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 9.00 degrees
 Stern overhang: -3.00 ft / -0.91 m
 Freeboard (% = length of deck as a percentage of waterline length):
    Fore end,  Aft end
    - Forecastle: 20.00 %,  23.00 ft / 7.01 m,  22.00 ft / 6.71 m
    - Forward deck: 17.00 %,  22.00 ft / 6.71 m,  22.00 ft / 6.71 m
    - Aft deck: 48.00 %,  14.00 ft / 4.27 m,  14.00 ft / 4.27 m
    - Quarter deck: 15.00 %,  14.00 ft / 4.27 m,  14.00 ft / 4.27 m
    - Average freeboard:  17.04 ft / 5.19 m
 Ship tends to be wet forward

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 153.5 %
  - Above water (accommodation/working, high = better): 132.6 %
 Waterplane Area: 15,464 Square feet or 1,437 Square metres
 Displacement factor (Displacement / loading): 118 %
 Structure weight / hull surface area: 78 lbs/sq ft or 381 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.96
  - Longitudinal: 1.47
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent