Aztec Ship Designs 1925-1928

TacCovert4 · March 07, 2023, 01:52:23 PM

I can swap the twin 100s for single 130s.

TacCovert4 · April 27, 2023, 02:01:09 PM

With the Lake Class Frigates finishing up in the first half of 1926, eyes turn once more to Destroyers, Razees, Submarines, and now to the first indigenous aircraft carrier.

First, a reprise of the Uhlan-class, as experience in the Mayan War showed the preference for hard hitting guns at long ranges, and the torpedoes have been removed in favor of aircraft.

Popocateptl, Aztec Razee laid down 1926

Displacement:
   17,207 t light; 18,003 t standard; 19,761 t normal; 21,168 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (655.84 ft / 650.92 ft) x 85.30 ft x (22.24 / 23.50 ft)
   (199.90 m / 198.40 m) x 26.00 m x (6.78 / 7.16 m)

Armament:
9 - 9.45" / 240 mm 50.0 cal guns - 446.53lbs / 202.54kg shells, 120 per gun
     Breech loading guns in turret on barbette mounts, 1926 Model
     3 x 3-gun mounts on centreline ends, majority forward
      1 raised mount - superfiring
14 - 5.12" / 130 mm 50.0 cal guns - 70.97lbs / 32.19kg shells, 200 per gun
     Quick firing guns in deck and hoist mounts, 1926 Model
     6 x Twin mounts on sides, evenly spread
     1 x Twin mount on centreline, aft deck centre
      1 raised mount
6 - 2.76" / 70.0 mm 50.0 cal guns - 11.08lbs / 5.03kg shells, 300 per gun
     Anti-air guns in deck mounts, 1926 Model
     6 x Single mounts on centreline, evenly spread
      6 raised mounts
16 - 1.18" / 30.0 mm 50.0 cal guns - 0.87lbs / 0.40kg shells, 1,500 per gun
     Anti-air guns in deck and hoist mounts, 1926 Model
     8 x Twin mounts on sides, evenly spread
Weight of broadside 5,093 lbs / 2,310 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   6.89" / 175 mm   423.10 ft / 128.96 m   13.12 ft / 4.00 m
   Ends:   2.99" / 76 mm   227.79 ft / 69.43 m   11.09 ft / 3.38 m
     Main Belt covers 100 % of normal length

- Torpedo Bulkhead - Additional damage containing bulkheads:
      1.57" / 40 mm   423.10 ft / 128.96 m   20.54 ft / 6.26 m
   Beam between torpedo bulkheads 72.18 ft / 22.00 m

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   7.09" / 180 mm   4.33" / 110 mm      6.69" / 170 mm
   2nd:   1.97" / 50 mm   1.18" / 30 mm      1.97" / 50 mm
   4th:     -        -         0.79" / 20 mm

- Armoured deck - multiple decks:
   For and Aft decks: 2.76" / 70 mm
   Forecastle: 1.38" / 35 mm Quarter deck: 1.57" / 40 mm

- Conning towers: Forward 4.33" / 110 mm, Aft 4.33" / 110 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 102,577 shp / 76,522 Kw = 30.00 kts
   Range 10,000nm at 14.00 kts
   Bunker at max displacement = 3,164 tons

Complement:
   833 - 1,083

Cost:
   £5.496 million / $21.983 million

Distribution of weights at normal displacement:
   Armament: 1,501 tons, 7.6 %
     - Guns: 1,501 tons, 7.6 %
   Armour: 5,271 tons, 26.7 %
     - Belts: 1,904 tons, 9.6 %
     - Torpedo bulkhead: 506 tons, 2.6 %
     - Armament: 886 tons, 4.5 %
     - Armour Deck: 1,837 tons, 9.3 %
     - Conning Towers: 136 tons, 0.7 %
   Machinery: 3,284 tons, 16.6 %
   Hull, fittings & equipment: 6,894 tons, 34.9 %
   Fuel, ammunition & stores: 2,554 tons, 12.9 %
   Miscellaneous weights: 258 tons, 1.3 %
     - Hull above water: 73 tons
     - On freeboard deck: 60 tons
     - Above deck: 125 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     28,679 lbs / 13,009 Kg = 68.0 x 9.4 " / 240 mm shells or 4.4 torpedoes
   Stability (Unstable if below 1.00): 1.13
   Metacentric height 4.9 ft / 1.5 m
   Roll period: 16.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.45
   Seaboat quality (Average = 1.00): 1.04

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.560 / 0.568
   Length to Beam Ratio: 7.63 : 1
   'Natural speed' for length: 25.51 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 67
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   20.00 %, 27.89 ft / 8.50 m, 24.61 ft / 7.50 m
     - Forward deck:   30.00 %, 24.61 ft / 7.50 m, 19.69 ft / 6.00 m
     - Aft deck:   35.00 %, 19.69 ft / 6.00 m, 19.69 ft / 6.00 m
     - Quarter deck:   15.00 %, 19.69 ft / 6.00 m, 19.69 ft / 6.00 m
     - Average freeboard:      21.67 ft / 6.60 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 93.8 %
      - Above water (accommodation/working, high = better): 186.2 %
   Waterplane Area: 39,115 Square feet or 3,634 Square metres
   Displacement factor (Displacement / loading): 115 %
   Structure weight / hull surface area: 141 lbs/sq ft or 690 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.25
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

25t - LR Radio
25t - NF Devices (1918)
150t - 1918 FC
60t - 2 x Armed Floatplane w/ Catapults

TacCovert4 · April 27, 2023, 02:03:55 PM

And an alternate design. Sacrifices 1kt in speed, gains some armor, and is actually 300t lighter. Also picks up an additional 2 floatplanes aboard.

Uhlan, Aztec Razee laid down 1926

Displacement:
   16,915 t light; 17,700 t standard; 19,439 t normal; 20,829 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (654.97 ft / 650.92 ft) x 83.66 ft x (22.31 / 23.58 ft)
   (199.63 m / 198.40 m) x 25.50 m x (6.80 / 7.19 m)

Armament:
9 - 9.45" / 240 mm 50.0 cal guns - 446.52lbs / 202.54kg shells, 120 per gun
     Breech loading guns in turret on barbette mounts, 1926 Model
     3 x 3-gun mounts on centreline ends, majority forward
      1 raised mount - superfiring
14 - 5.12" / 130 mm 50.0 cal guns - 70.97lbs / 32.19kg shells, 200 per gun
     Quick firing guns in deck and hoist mounts, 1926 Model
     6 x Twin mounts on sides, evenly spread
     1 x Twin mount on centreline, aft deck centre
      1 raised mount
4 - 2.76" / 70.0 mm 50.0 cal guns - 11.09lbs / 5.03kg shells, 400 per gun
     Anti-air guns in deck mounts, 1926 Model
     4 x Single mounts on centreline, evenly spread
      4 raised mounts
12 - 1.18" / 30.0 mm 50.0 cal guns - 0.86lbs / 0.39kg shells, 1,500 per gun
     Anti-air guns in deck and hoist mounts, 1926 Model
     6 x Twin mounts on sides, evenly spread
Weight of broadside 5,067 lbs / 2,298 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   7.87" / 200 mm   423.10 ft / 128.96 m   13.12 ft / 4.00 m
   Ends:   3.15" / 80 mm   227.79 ft / 69.43 m   11.48 ft / 3.50 m
     Main Belt covers 100 % of normal length

- Torpedo Bulkhead - Additional damage containing bulkheads:
      1.57" / 40 mm   423.10 ft / 128.96 m   20.47 ft / 6.24 m
   Beam between torpedo bulkheads 65.62 ft / 20.00 m

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   9.45" / 240 mm   5.51" / 140 mm      7.87" / 200 mm
   2nd:   3.15" / 80 mm   1.97" / 50 mm      1.97" / 50 mm
   3rd:   0.79" / 20 mm     -           -
   4th:   0.79" / 20 mm     -         0.79" / 20 mm

- Armoured deck - single deck:
   For and Aft decks: 2.76" / 70 mm
   Forecastle: 1.38" / 35 mm Quarter deck: 1.57" / 40 mm

- Conning towers: Forward 5.51" / 140 mm, Aft 5.51" / 140 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 88,314 shp / 65,882 Kw = 29.00 kts
   Range 10,000nm at 14.00 kts
   Bunker at max displacement = 3,129 tons

Complement:
   823 - 1,070

Cost:
   £5.233 million / $20.933 million

Distribution of weights at normal displacement:
   Armament: 1,495 tons, 7.7 %
     - Guns: 1,495 tons, 7.7 %
   Armour: 5,662 tons, 29.1 %
     - Belts: 2,152 tons, 11.1 %
     - Torpedo bulkhead: 505 tons, 2.6 %
     - Armament: 1,031 tons, 5.3 %
     - Armour Deck: 1,802 tons, 9.3 %
     - Conning Towers: 172 tons, 0.9 %
   Machinery: 2,827 tons, 14.5 %
   Hull, fittings & equipment: 6,575 tons, 33.8 %
   Fuel, ammunition & stores: 2,524 tons, 13.0 %
   Miscellaneous weights: 356 tons, 1.8 %
     - Hull below water: 50 tons
     - Hull above water: 71 tons
     - On freeboard deck: 110 tons
     - Above deck: 125 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     28,327 lbs / 12,849 Kg = 67.2 x 9.4 " / 240 mm shells or 4.7 torpedoes
   Stability (Unstable if below 1.00): 1.08
   Metacentric height 4.5 ft / 1.4 m
   Roll period: 16.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.45
   Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.560 / 0.568
   Length to Beam Ratio: 7.78 : 1
   'Natural speed' for length: 25.51 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   20.00 %, 22.97 ft / 7.00 m, 21.33 ft / 6.50 m
     - Forward deck:   30.00 %, 21.33 ft / 6.50 m, 18.04 ft / 5.50 m
     - Aft deck:   35.00 %, 18.04 ft / 5.50 m, 18.04 ft / 5.50 m
     - Quarter deck:   15.00 %, 18.04 ft / 5.50 m, 18.04 ft / 5.50 m
     - Average freeboard:      19.32 ft / 5.89 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 93.5 %
      - Above water (accommodation/working, high = better): 166.9 %
   Waterplane Area: 38,363 Square feet or 3,564 Square metres
   Displacement factor (Displacement / loading): 116 %
   Structure weight / hull surface area: 140 lbs/sq ft or 686 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.99
      - Longitudinal: 1.07
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

25t - LR Radio
25t - NF Devices (1918)
146t - 1918 FC

50t - Additional DC Equipment
10t - 2 x Catapult Aft
100t - 4 x Armed Floatplane Aft

TacCovert4 · April 27, 2023, 02:22:27 PM

And two designs for a new Aircraft carrier. The first with a fully enclosed and armored hangar, flying off deck at forecastle hangar end, and 40 aircraft.

Martinique, Aztec Aircraft Carrier laid down 1926

Displacement:
   16,370 t light; 16,835 t standard; 18,484 t normal; 19,802 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (594.44 ft / 587.27 ft) x 70.54 ft x (27.89 / 29.51 ft)
   (181.18 m / 179.00 m) x 21.50 m x (8.50 / 8.99 m)

Armament:
8 - 5.12" / 130 mm 50.0 cal guns - 70.97lbs / 32.19kg shells, 200 per gun
     Quick firing guns in deck mounts, 1926 Model
     8 x Single mounts on sides, evenly spread
12 - 2.76" / 70.0 mm 50.0 cal guns - 11.09lbs / 5.03kg shells, 300 per gun
     Anti-air guns in deck mounts, 1926 Model
     12 x Single mounts on sides, evenly spread
20 - 1.18" / 30.0 mm 50.0 cal guns - 0.86lbs / 0.39kg shells, 1,000 per gun
     Anti-air guns in deck and hoist mounts, 1926 Model
     10 x Twin mounts on sides, evenly spread
      16 raised mounts
Weight of broadside 718 lbs / 326 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.15" / 80 mm   381.73 ft / 116.35 m   9.84 ft / 3.00 m
   Ends:   1.97" / 50 mm   205.51 ft / 62.64 m   9.84 ft / 3.00 m
   Upper:   2.36" / 60 mm   381.73 ft / 116.35 m   18.04 ft / 5.50 m
     Main Belt covers 100 % of normal length

- Torpedo Bulkhead - Additional damage containing bulkheads:
      1.18" / 30 mm   381.73 ft / 116.35 m   25.92 ft / 7.90 m
   Beam between torpedo bulkheads 70.54 ft / 21.50 m

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm     -           -
   2nd:   0.79" / 20 mm     -           -
   3rd:   0.79" / 20 mm   0.79" / 20 mm      0.79" / 20 mm

- Armoured deck - single deck:
   For and Aft decks: 3.54" / 90 mm
   Forecastle: 1.57" / 40 mm Quarter deck: 1.57" / 40 mm

- Conning towers: Forward 1.97" / 50 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 87,471 shp / 65,253 Kw = 29.00 kts
   Range 10,000nm at 14.00 kts
   Bunker at max displacement = 2,968 tons

Complement:
   792 - 1,030

Cost:
   £3.474 million / $13.894 million

Distribution of weights at normal displacement:
   Armament: 146 tons, 0.8 %
     - Guns: 146 tons, 0.8 %
   Armour: 3,622 tons, 19.6 %
     - Belts: 1,328 tons, 7.2 %
     - Torpedo bulkhead: 432 tons, 2.3 %
     - Armament: 97 tons, 0.5 %
     - Armour Deck: 1,734 tons, 9.4 %
     - Conning Tower: 30 tons, 0.2 %
   Machinery: 2,800 tons, 15.1 %
   Hull, fittings & equipment: 6,328 tons, 34.2 %
   Fuel, ammunition & stores: 2,113 tons, 11.4 %
   Miscellaneous weights: 3,475 tons, 18.8 %
     - Hull below water: 1,700 tons
     - Hull above water: 1,700 tons
     - Above deck: 75 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     38,959 lbs / 17,671 Kg = 581.2 x 5.1 " / 130 mm shells or 4.6 torpedoes
   Stability (Unstable if below 1.00): 1.21
   Metacentric height 4.2 ft / 1.3 m
   Roll period: 14.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.13
   Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
   Hull has low forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.560 / 0.567
   Length to Beam Ratio: 8.33 : 1
   'Natural speed' for length: 24.23 kts
   Power going to wave formation at top speed: 56 %
   Trim (Max stability = 0, Max steadiness = 100): 35
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   25.00 %, 19.69 ft / 6.00 m, 19.69 ft / 6.00 m
     - Forward deck:   30.00 %, 39.37 ft / 12.00 m, 39.37 ft / 12.00 m
     - Aft deck:   35.00 %, 39.37 ft / 12.00 m, 39.37 ft / 12.00 m
     - Quarter deck:   10.00 %, 39.37 ft / 12.00 m, 39.37 ft / 12.00 m
     - Average freeboard:      34.45 ft / 10.50 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 72.4 %
      - Above water (accommodation/working, high = better): 276.3 %
   Waterplane Area: 29,182 Square feet or 2,711 Square metres
   Displacement factor (Displacement / loading): 141 %
   Structure weight / hull surface area: 103 lbs/sq ft or 504 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.83
      - Longitudinal: 5.12
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Warning: Too many mounts in specific locations - 3rd Battery

3400t - 40 Aircraft
25t - LR Radio
10t - Additional SR Radio (for air group control)
15t - 1918 FC
25t - NF Devices

Armored Box Carrier:
Flight Deck: 50mm
Hangar Floor: 40mm

Fo'cstle deck is take-off deck leading into Hangar.

And the second, a double unarmored hangar, with 18 more aircraft

Martinique, Aztec Aircraft Carrier laid down 1926

Displacement:
   17,704 t light; 18,227 t standard; 20,020 t normal; 21,454 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (630.52 ft / 623.36 ft) x 78.74 ft x (25.49 / 26.94 ft)
   (192.18 m / 190.00 m) x 24.00 m x (7.77 / 8.21 m)

Armament:
8 - 5.12" / 130 mm 50.0 cal guns - 70.97lbs / 32.19kg shells, 250 per gun
     Quick firing guns in deck mounts, 1926 Model
     8 x Twin mounts on sides, evenly spread
12 - 2.76" / 70.0 mm 50.0 cal guns - 11.09lbs / 5.03kg shells, 400 per gun
     Anti-air guns in deck mounts, 1926 Model
     12 x Single mounts on sides, evenly spread
20 - 1.18" / 30.0 mm 50.0 cal guns - 0.86lbs / 0.39kg shells, 1,500 per gun
     Anti-air guns in deck and hoist mounts, 1926 Model
     20 x Twin mounts on sides, evenly spread
      16 raised mounts
Weight of broadside 718 lbs / 326 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.15" / 80 mm   405.18 ft / 123.50 m   13.12 ft / 4.00 m
   Ends:   1.97" / 50 mm   218.14 ft / 66.49 m   10.66 ft / 3.25 m
     Main Belt covers 100 % of normal length
     Main belt does not fully cover magazines and engineering spaces

- Torpedo Bulkhead - Additional damage containing bulkheads:
      1.18" / 30 mm   405.18 ft / 123.50 m   21.98 ft / 6.70 m
   Beam between torpedo bulkheads 59.06 ft / 18.00 m

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm     -           -
   2nd:   0.79" / 20 mm     -           -
   3rd:   0.79" / 20 mm   0.79" / 20 mm      0.79" / 20 mm

- Armoured deck - single deck:
   For and Aft decks: 2.36" / 60 mm
   Forecastle: 1.57" / 40 mm Quarter deck: 1.57" / 40 mm

- Conning towers: Forward 1.97" / 50 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 90,572 shp / 67,567 Kw = 29.00 kts
   Range 10,300nm at 14.00 kts
   Bunker at max displacement = 3,226 tons

Complement:
   840 - 1,093

Cost:
   £3.683 million / $14.732 million

Distribution of weights at normal displacement:
   Armament: 128 tons, 0.6 %
     - Guns: 128 tons, 0.6 %
   Armour: 2,876 tons, 14.4 %
     - Belts: 877 tons, 4.4 %
     - Torpedo bulkhead: 389 tons, 1.9 %
     - Armament: 147 tons, 0.7 %
     - Armour Deck: 1,431 tons, 7.1 %
     - Conning Tower: 31 tons, 0.2 %
   Machinery: 2,899 tons, 14.5 %
   Hull, fittings & equipment: 7,087 tons, 35.4 %
   Fuel, ammunition & stores: 2,316 tons, 11.6 %
   Miscellaneous weights: 4,715 tons, 23.6 %
     - Hull below water: 2,320 tons
     - Hull above water: 2,320 tons
     - Above deck: 75 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     44,748 lbs / 20,298 Kg = 667.5 x 5.1 " / 130 mm shells or 5.1 torpedoes
   Stability (Unstable if below 1.00): 1.32
   Metacentric height 5.7 ft / 1.7 m
   Roll period: 13.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.10
   Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
   Hull has low forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.560 / 0.568
   Length to Beam Ratio: 7.92 : 1
   'Natural speed' for length: 24.97 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 35
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   25.00 %, 19.69 ft / 6.00 m, 19.69 ft / 6.00 m
     - Forward deck:   30.00 %, 39.37 ft / 12.00 m, 39.37 ft / 12.00 m
     - Aft deck:   35.00 %, 39.37 ft / 12.00 m, 39.37 ft / 12.00 m
     - Quarter deck:   10.00 %, 39.37 ft / 12.00 m, 39.37 ft / 12.00 m
     - Average freeboard:      34.45 ft / 10.50 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 100.4 %
      - Above water (accommodation/working, high = better): 308.7 %
   Waterplane Area: 34,578 Square feet or 3,212 Square metres
   Displacement factor (Displacement / loading): 145 %
   Structure weight / hull surface area: 110 lbs/sq ft or 539 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.86
      - Longitudinal: 3.77
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

4640t - 58 Aircraft
25t - LR Radio
10t - Additional SR Radio (for air group control)
15t - 1918 FC
25t - NF Devices

Fo'cstle deck is take-off deck leading into Hangar.
Double Unarmored Hangar

The Rock Doctor · April 27, 2023, 07:08:33 PM

I'd prefer the faster razee for cruiser-killing reasons.

Some of the carrier battery needs a bit of tweaking. Are you able to build box carriers at this point?

TacCovert4 · April 28, 2023, 04:22:02 PM

I have to have separate takeoff and landing decks right now. Which is being accomplished by having the takeoff deck down at hangar level and the bridge at the fore end of the landing deck. So on the armored box design, the front of the box has an opening.

What problems with the batteries?

The Rock Doctor · April 28, 2023, 06:43:42 PM

Twenty guns in twenty twin mounts, in one case. Not major stuff, but it might save you a few tonnes somewhere.

TacCovert4 · April 28, 2023, 06:58:35 PM

Quote from: The Rock Doctor on April 28, 2023, 06:43:42 PM
Twenty guns in twenty twin mounts, in one case. Not major stuff, but it might save you a few tonnes somewhere.

Ahh. Yes, a small problem. Probably when I swapped from the simpler single mounts to the twin mount and hoist on the 30mm pom pom, the latter having better sustained fire.

TacCovert4 · April 30, 2023, 01:30:15 PM

Looking to DDs, I have spent some time reconfiguring the I-Class. An AA Suite for self defense of 12 x 30mm AA guns, a strong main battery of 3x2x130mm guns, and a general purpose mix of Hydrophones/Depth Charges/Torpedoes. All on a ship pushing better than 32kts sustained, with splinter protection to protect against the ship or its main battery getting popped by a lucky hit or near miss by DD or cruiser-grade weapons.

I-Class, Aztec Destroyer laid down 1926

Displacement:
   2,000 t light; 2,100 t standard; 2,346 t normal; 2,543 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (400.87 ft / 393.70 ft) x 36.09 ft x (10.51 / 11.20 ft)
   (122.18 m / 120.00 m) x 11.00 m x (3.20 / 3.42 m)

Armament:
6 - 5.12" / 130 mm 50.0 cal guns - 70.97lbs / 32.19kg shells, 200 per gun
     Quick firing guns in deck and hoist mounts, 1926 Model
     3 x Twin mounts on centreline ends, majority forward
      1 raised mount - superfiring
12 - 1.18" / 30.0 mm 50.0 cal guns - 0.87lbs / 0.40kg shells, 1,000 per gun
     Quick firing guns in deck mounts, 1926 Model
     12 x Single mounts on sides, evenly spread
Weight of broadside 436 lbs / 198 kg

Armour:
- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.06" / 27 mm   0.94" / 24 mm      1.06" / 27 mm

- Box over magazines:
   1.06" / 27 mm

- Conning towers: Forward 1.06" / 27 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 44,429 shp / 33,144 Kw = 32.39 kts
   Range 5,000nm at 14.00 kts
   Bunker at max displacement = 443 tons

Complement:
   168 - 219

Cost:
   £0.968 million / $3.872 million

Distribution of weights at normal displacement:
   Armament: 106 tons, 4.5 %
     - Guns: 106 tons, 4.5 %
   Armour: 43 tons, 1.8 %
     - Armament: 21 tons, 0.9 %
     - Armour Deck: 18 tons, 0.8 %
     - Conning Tower: 4 tons, 0.2 %
   Machinery: 1,174 tons, 50.0 %
   Hull, fittings & equipment: 633 tons, 27.0 %
   Fuel, ammunition & stores: 346 tons, 14.8 %
   Miscellaneous weights: 44 tons, 1.9 %
     - Hull below water: 5 tons
     - Hull above water: 6 tons
     - On freeboard deck: 26 tons
     - Above deck: 7 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     623 lbs / 283 Kg = 9.3 x 5.1 " / 130 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.20
   Metacentric height 1.5 ft / 0.5 m
   Roll period: 12.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.69
   Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.550 / 0.559
   Length to Beam Ratio: 10.91 : 1
   'Natural speed' for length: 19.84 kts
   Power going to wave formation at top speed: 66 %
   Trim (Max stability = 0, Max steadiness = 100): 59
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   20.00 %, 19.69 ft / 6.00 m, 18.04 ft / 5.50 m
     - Forward deck:   30.00 %, 18.04 ft / 5.50 m, 14.76 ft / 4.50 m
     - Aft deck:   35.00 %, 14.76 ft / 4.50 m, 14.76 ft / 4.50 m
     - Quarter deck:   15.00 %, 14.76 ft / 4.50 m, 14.76 ft / 4.50 m
     - Average freeboard:      16.04 ft / 4.89 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 180.6 %
      - Above water (accommodation/working, high = better): 174.5 %
   Waterplane Area: 9,916 Square feet or 921 Square metres
   Displacement factor (Displacement / loading): 70 %
   Structure weight / hull surface area: 37 lbs/sq ft or 180 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.42
      - Overall: 0.55
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room

13t - 1918 FC
16t - 1x4x21in HW TT Centerline

5t - Basic Hydrophones
10t - 50 x DC

The Rock Doctor · April 30, 2023, 04:32:07 PM

It's pretty capable.

TacCovert4 · April 30, 2023, 05:16:50 PM

Quote from: The Rock Doctor on April 30, 2023, 04:32:07 PM
It's pretty capable.

I had been looking at a pure gun platform, but couldn't get it right. I tried pulling most of the splinter protection off, but it didn't really make for room to put anything useful. I'll probably look at night fighting devices aboard moving forward as we get towards radar.

Jefgte · April 30, 2023, 05:40:59 PM

It is a gun combat destroyer because it only has 4TT.
Its weight reserve is low.

TacCovert4 · April 30, 2023, 05:54:47 PM

Quote from: Jefgte on April 30, 2023, 05:40:59 PM
It is a gun combat destroyer because it only has 4TT.
Its weight reserve is low.

The torpedoes falling off are a natural result of the Mayan war and the complete ineffectiveness of torpedoes in battle, even in near ideal circumstances.

And yes, she doesn't have a whole lot of weight to spare, of course she is a dd. Refit options for this class would most likely be a 110 or 115mm dual purpose gun, which would be weight neutral and actually free up a little.

TacCovert4 · May 02, 2023, 07:10:01 PM

And a lighter design of DD. Something more 'escort oriented'.

DD-K, Aztec Destroyer laid down 1927

Displacement:
   1,466 t light; 1,539 t standard; 1,741 t normal; 1,902 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (382.13 ft / 377.30 ft) x 32.81 ft x (9.84 / 10.53 ft)
   (116.47 m / 115.00 m) x 10.00 m x (3.00 / 3.21 m)

Armament:
4 - 5.12" / 130 mm 50.0 cal guns - 70.97lbs / 32.19kg shells, 200 per gun
     Quick firing guns in deck mounts, 1927 Model
     4 x Single mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
12 - 1.18" / 30.0 mm 50.0 cal guns - 0.87lbs / 0.40kg shells, 1,000 per gun
     Anti-air guns in deck mounts, 1927 Model
     12 x Single mounts on sides, evenly spread
Weight of broadside 294 lbs / 134 kg

Armour:
- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.06" / 27 mm   1.06" / 27 mm        -

- Conning towers: Forward 1.06" / 27 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 35,554 shp / 26,524 Kw = 32.25 kts
   Range 5,000nm at 14.00 kts
   Bunker at max displacement = 363 tons

Complement:
   134 - 175

Cost:
   £0.696 million / $2.785 million

Distribution of weights at normal displacement:
   Armament: 58 tons, 3.4 %
     - Guns: 58 tons, 3.4 %
   Armour: 32 tons, 1.9 %
     - Armament: 29 tons, 1.7 %
     - Conning Tower: 3 tons, 0.2 %
   Machinery: 887 tons, 51.0 %
   Hull, fittings & equipment: 421 tons, 24.2 %
   Fuel, ammunition & stores: 274 tons, 15.7 %
   Miscellaneous weights: 67 tons, 3.8 %
     - Hull below water: 15 tons
     - On freeboard deck: 44 tons
     - Above deck: 8 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     502 lbs / 228 Kg = 7.5 x 5.1 " / 130 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.33
   Metacentric height 1.6 ft / 0.5 m
   Roll period: 11.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 59 %
         - Recoil effect (Restricted arc if above 1.00): 0.30
   Seaboat quality (Average = 1.00): 1.04

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.500 / 0.511
   Length to Beam Ratio: 11.50 : 1
   'Natural speed' for length: 19.42 kts
   Power going to wave formation at top speed: 65 %
   Trim (Max stability = 0, Max steadiness = 100): 57
   Bow angle (Positive = bow angles forward): 15.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   20.00 %, 18.04 ft / 5.50 m, 18.04 ft / 5.50 m
     - Forward deck:   30.00 %, 18.04 ft / 5.50 m, 18.04 ft / 5.50 m
     - Aft deck:   35.00 %, 9.84 ft / 3.00 m, 9.84 ft / 3.00 m
     - Quarter deck:   15.00 %, 9.84 ft / 3.00 m, 9.84 ft / 3.00 m
     - Average freeboard:      13.94 ft / 4.25 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 175.4 %
      - Above water (accommodation/working, high = better): 159.8 %
   Waterplane Area: 8,247 Square feet or 766 Square metres
   Displacement factor (Displacement / loading): 70 %
   Structure weight / hull surface area: 30 lbs/sq ft or 147 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.18
      - Overall: 0.54
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room

15t -Advanced Hydrophones
24t - Depth Charges
4t - 4 x DC Thrower
16t - 1 x 4 x 21in HW TT Centerline
8t - 1918 FC

TacCovert4 · May 07, 2023, 11:42:59 AM

The I-Class DD is considered suitable as a large DD or Leader for the Caribbean and Atlantic forces, as its range issues are made moot by the availability of ports to refuel. For the Pacific, a larger radius of action is required simply to operate with a fleet.

J-Class, Aztec Destroyer laid down 1926

Displacement:
   2,000 t light; 2,084 t standard; 2,485 t normal; 2,805 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (400.27 ft / 393.70 ft) x 38.06 ft x (10.75 / 11.83 ft)
   (122.00 m / 120.00 m) x 11.60 m x (3.28 / 3.61 m)

Armament:
8 - 3.94" / 100 mm 50.0 cal guns - 32.30lbs / 14.65kg shells, 200 per gun
     Quick firing guns in deck mounts, 1926 Model
     4 x Twin mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
12 - 1.18" / 30.0 mm 50.0 cal guns - 0.87lbs / 0.40kg shells, 1,000 per gun
     Quick firing guns in deck and hoist mounts, 1926 Model
     6 x Twin mounts on sides, evenly spread
Weight of broadside 269 lbs / 122 kg

Armour:
- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.06" / 27 mm   0.87" / 22 mm        -
   2nd:     -        -         0.79" / 20 mm

- Conning towers: Forward 1.06" / 27 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 43,946 shp / 32,784 Kw = 32.00 kts
   Range 8,000nm at 14.00 kts
   Bunker at max displacement = 721 tons

Complement:
   175 - 228

Cost:
   £0.908 million / $3.632 million

Distribution of weights at normal displacement:
   Armament: 47 tons, 1.9 %
     - Guns: 47 tons, 1.9 %
   Armour: 26 tons, 1.0 %
     - Armament: 22 tons, 0.9 %
     - Conning Tower: 4 tons, 0.2 %
   Machinery: 1,265 tons, 50.9 %
   Hull, fittings & equipment: 582 tons, 23.4 %
   Fuel, ammunition & stores: 485 tons, 19.5 %
   Miscellaneous weights: 80 tons, 3.2 %
     - Hull below water: 15 tons
     - Hull above water: 6 tons
     - On freeboard deck: 54 tons
     - Above deck: 5 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     774 lbs / 351 Kg = 25.4 x 3.9 " / 100 mm shells or 0.4 torpedoes
   Stability (Unstable if below 1.00): 1.39
   Metacentric height 2.1 ft / 0.6 m
   Roll period: 11.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.19
   Seaboat quality (Average = 1.00): 1.05

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.540 / 0.554
   Length to Beam Ratio: 10.34 : 1
   'Natural speed' for length: 19.84 kts
   Power going to wave formation at top speed: 66 %
   Trim (Max stability = 0, Max steadiness = 100): 66
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   20.00 %, 18.04 ft / 5.50 m, 18.04 ft / 5.50 m
     - Forward deck:   30.00 %, 18.04 ft / 5.50 m, 14.76 ft / 4.50 m
     - Aft deck:   35.00 %, 14.76 ft / 4.50 m, 14.76 ft / 4.50 m
     - Quarter deck:   15.00 %, 14.76 ft / 4.50 m, 14.76 ft / 4.50 m
     - Average freeboard:      15.91 ft / 4.85 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 172.1 %
      - Above water (accommodation/working, high = better): 175.0 %
   Waterplane Area: 10,359 Square feet or 962 Square metres
   Displacement factor (Displacement / loading): 81 %
   Structure weight / hull surface area: 33 lbs/sq ft or 161 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.25
      - Overall: 0.55
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

11t - 1918 FC
32t - 2x4x21in HW TT Centerline
15t - Enhanced Hydrophones 1915
2t - 2 x DC Thrower
20t - 100 x 195kg DC