Aztec Ships and Refits, 1914-1915

[The Rock Doctor]

It's cute but there's nowhere to actually stow the balloon when it isn't airborne.

[Desertfox]

Big box on deck? The British stuffed balloons into their TBs in WWI. I don't think a deflated balloon takes up alot of space.

[TacCovert4]

The concerns of wartime have caused the previously discounted 'large cruiser' to be revisited.  The BBx program would have replaced both battlecruisers and battleships and made 'large cruisers' more of a pointless gesture.  However the understanding that the Royal Aztec Navy might not be able to continue its original building plans in a post-war environment due to budget and losses in other classes, the type has been revisted as a 'small battlecruiser' that can provide a measure of capital unit to the fleet while generally being less expensive than proper capital ships.

CB-1, Aztec Large Cruiser laid down 1915

Displacement:
   16,600 t light; 17,274 t standard; 18,446 t normal; 19,383 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (655.88 ft / 646.33 ft) x 65.62 ft x (26.25 / 27.32 ft)
   (199.91 m / 197.00 m) x 20.00 m  x (8.00 / 8.33 m)

Armament:
      6 - 11.02" / 280 mm 50.0 cal guns - 709.07lbs / 321.63kg shells, 110 per gun
     Breech loading guns in turret on barbette mounts, 1915 Model
     3 x Twin mounts on centreline ends, majority aft
      1 raised mount aft - superfiring
      14 - 3.94" / 100 mm 50.0 cal guns - 32.30lbs / 14.65kg shells, 150 per gun
     Quick firing guns in deck and hoist mounts, 1915 Model
     14 x Single mounts on sides, evenly spread
      4 - 2.76" / 70.0 mm 50.0 cal guns - 11.08lbs / 5.03kg shells, 300 per gun
     Anti-air guns in deck mounts, 1915 Model
     4 x Single mounts on centreline, evenly spread
      4 raised mounts
      16 - 0.31" / 8.0 mm 70.0 cal guns - 0.02lbs / 0.01kg shells, 2,000 per gun
     Machine guns in deck mounts, 1915 Model
     8 x Twin mounts on sides, evenly spread
      Weight of broadside 4,751 lbs / 2,155 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   7.87" / 200 mm   590.55 ft / 180.00 m   13.12 ft / 4.00 m
   Ends:   Unarmoured
     Main Belt covers 141 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      0.79" / 20 mm   524.93 ft / 160.00 m   26.25 ft / 8.00 m
   Beam between torpedo bulkheads 49.21 ft / 15.00 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   8.66" / 220 mm   2.36" / 60 mm      8.66" / 220 mm
   2nd:   1.97" / 50 mm         -         1.97" / 50 mm

   - Protected deck - multiple decks:
   For and Aft decks: 2.83" / 72 mm
   Forecastle: 0.00" / 0 mm  Quarter deck: 1.18" / 30 mm

   - Conning towers: Forward 3.54" / 90 mm, Aft 3.54" / 90 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 4 shafts, 94,979 shp / 70,855 Kw = 30.00 kts
   Range 7,500nm at 12.00 kts
   Bunker at max displacement = 2,109 tons

Complement:
   790 - 1,028

Cost:
   £2.295 million / $9.179 million

Distribution of weights at normal displacement:
   Armament: 1,009 tons, 5.5 %
      - Guns: 1,009 tons, 5.5 %
   Armour: 5,104 tons, 27.7 %
      - Belts: 2,384 tons, 12.9 %
      - Torpedo bulkhead: 401 tons, 2.2 %
      - Armament: 838 tons, 4.5 %
      - Armour Deck: 1,375 tons, 7.5 %
      - Conning Towers: 107 tons, 0.6 %
   Machinery: 3,598 tons, 19.5 %
   Hull, fittings & equipment: 5,911 tons, 32.0 %
   Fuel, ammunition & stores: 1,846 tons, 10.0 %
   Miscellaneous weights: 978 tons, 5.3 %
      - Hull below water: 810 tons
      - On freeboard deck: 18 tons
      - Above deck: 150 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     19,488 lbs / 8,839 Kg = 29.1 x 11.0 " / 280 mm shells or 2.5 torpedoes
   Stability (Unstable if below 1.00): 1.05
   Metacentric height 2.9 ft / 0.9 m
   Roll period: 16.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 52 %
         - Recoil effect (Restricted arc if above 1.00): 0.82
   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): 0.580 / 0.585
   Length to Beam Ratio: 9.85 : 1
   'Natural speed' for length: 25.42 kts
   Power going to wave formation at top speed: 54 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   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 %,  26.25 ft / 8.00 m,  22.97 ft / 7.00 m
      - Forward deck:   30.00 %,  22.97 ft / 7.00 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:      20.03 ft / 6.11 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 123.3 %
      - Above water (accommodation/working, high = better): 140.8 %
   Waterplane Area: 30,442 Square feet or 2,828 Square metres
   Displacement factor (Displacement / loading): 103 %
   Structure weight / hull surface area: 129 lbs/sq ft or 631 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.98
      - Longitudinal: 1.21
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room



100t - 1908 FC
25t - LR Radio
25t - Night Fighting Devices
18t - 2 x 3 x 21in TT on sides
810t - Electric Drives

[TacCovert4]

Another 'emergency' design drawn up due to the war is a 'coastal' battleship built for the Caribbean theater and more specifically built to accompany the new Implacable class should the Aztec navy find itself without any battleships.  Again, the design plans are to be as inexpensive and as quick to build as possible.  An alternative design using 280mm guns which would match the Implacable class for firepower gun for gun is also in the works.

Grand Turk, Aztec Coastal Battleship laid down 1914

Displacement:
   16,884 t light; 17,783 t standard; 18,634 t normal; 19,315 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (626.25 ft / 623.36 ft) x 78.74 ft x (22.15 / 22.81 ft)
   (190.88 m / 190.00 m) x 24.00 m  x (6.75 / 6.95 m)

Armament:
      6 - 14.17" / 360 mm 45.0 cal guns - 1,435.70lbs / 651.22kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1914 Model
     2 x 3-gun mounts on centreline, forward evenly spread
      16 - 3.94" / 100 mm 50.0 cal guns - 32.30lbs / 14.65kg shells, 150 per gun
     Quick firing guns in deck and hoist mounts, 1914 Model
     16 x Single mounts on sides, evenly spread
      4 - 2.76" / 70.0 mm 50.0 cal guns - 11.08lbs / 5.03kg shells, 150 per gun
     Breech loading guns in deck mounts, 1914 Model
     4 x Single mounts on centreline, aft evenly spread
      4 raised mounts
      16 - 0.31" / 8.0 mm 70.0 cal guns - 0.02lbs / 0.01kg shells, 2,000 per gun
     Machine guns in deck mounts, 1914 Model
     8 x Twin mounts on sides, evenly spread
      Weight of broadside 9,176 lbs / 4,162 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   9.84" / 250 mm   442.91 ft / 135.00 m   16.40 ft / 5.00 m
   Ends:   Unarmoured
     Main Belt covers 109 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      1.18" / 30 mm   393.70 ft / 120.00 m   22.97 ft / 7.00 m
   Beam between torpedo bulkheads 65.62 ft / 20.00 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   11.8" / 300 mm   3.54" / 90 mm      9.84" / 250 mm
   2nd:   2.36" / 60 mm   0.79" / 20 mm      2.36" / 60 mm

   - Armoured deck - multiple decks:
   For and Aft decks: 2.95" / 75 mm
   Forecastle: 0.79" / 20 mm  Quarter deck: 1.97" / 50 mm

   - Conning towers: Forward 3.94" / 100 mm, Aft 3.94" / 100 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 3 shafts, 42,239 shp / 31,510 Kw = 24.00 kts
   Range 5,000nm at 12.00 kts
   Bunker at max displacement = 1,532 tons

Complement:
   796 - 1,036

Cost:
   £2.139 million / $8.555 million

Distribution of weights at normal displacement:
   Armament: 1,951 tons, 10.5 %
      - Guns: 1,951 tons, 10.5 %
   Armour: 6,166 tons, 33.1 %
      - Belts: 2,983 tons, 16.0 %
      - Torpedo bulkhead: 395 tons, 2.1 %
      - Armament: 885 tons, 4.7 %
      - Armour Deck: 1,784 tons, 9.6 %
      - Conning Towers: 119 tons, 0.6 %
   Machinery: 1,627 tons, 8.7 %
   Hull, fittings & equipment: 6,480 tons, 34.8 %
   Fuel, ammunition & stores: 1,750 tons, 9.4 %
   Miscellaneous weights: 660 tons, 3.5 %
      - Hull below water: 410 tons
      - Above deck: 250 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     25,195 lbs / 11,428 Kg = 17.7 x 14.2 " / 360 mm shells or 4.2 torpedoes
   Stability (Unstable if below 1.00): 1.26
   Metacentric height 5.3 ft / 1.6 m
   Roll period: 14.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 56 %
         - Recoil effect (Restricted arc if above 1.00): 0.50
   Seaboat quality  (Average = 1.00): 1.12

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.600 / 0.604
   Length to Beam Ratio: 7.92 : 1
   'Natural speed' for length: 24.97 kts
   Power going to wave formation at top speed: 45 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   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 %,  16.40 ft / 5.00 m,  15.58 ft / 4.75 m
      - Forward deck:   30.00 %,  15.58 ft / 4.75 m,  13.12 ft / 4.00 m
      - Aft deck:   35.00 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
      - Quarter deck:   15.00 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
      - Average freeboard:      14.05 ft / 4.28 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 87.4 %
      - Above water (accommodation/working, high = better): 117.6 %
   Waterplane Area: 35,899 Square feet or 3,335 Square metres
   Displacement factor (Displacement / loading): 102 %
   Structure weight / hull surface area: 156 lbs/sq ft or 762 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1.02
      - Longitudinal: 1.00
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Adequate accommodation and workspace room

410t - Electric Drives
200t - 1908 FC
25t - LR Radio
25t - NF Devices



And the 280mm variant:


Grand Turk, Aztec Coastal Battleship laid down 1914

Displacement:
   17,776 t light; 18,591 t standard; 19,462 t normal; 20,159 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (626.25 ft / 623.36 ft) x 78.74 ft x (23.13 / 23.81 ft)
   (190.88 m / 190.00 m) x 24.00 m  x (7.05 / 7.26 m)

Armament:
      8 - 11.02" / 280 mm 50.0 cal guns - 709.07lbs / 321.63kg shells, 120 per gun
     Breech loading guns in turret on barbette mounts, 1914 Model
     4 x 2-gun mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
      16 - 3.94" / 100 mm 50.0 cal guns - 32.30lbs / 14.65kg shells, 150 per gun
     Quick firing guns in deck and hoist mounts, 1914 Model
     16 x Single mounts on sides, evenly spread
      4 - 2.76" / 70.0 mm 50.0 cal guns - 11.08lbs / 5.03kg shells, 150 per gun
     Breech loading guns in deck mounts, 1914 Model
     4 x Single mounts on centreline, aft evenly spread
      4 raised mounts
      16 - 0.31" / 8.0 mm 70.0 cal guns - 0.02lbs / 0.01kg shells, 2,000 per gun
     Machine guns in deck mounts, 1914 Model
     8 x Twin mounts on sides, evenly spread
      Weight of broadside 6,234 lbs / 2,828 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   11.8" / 300 mm   426.51 ft / 130.00 m   16.40 ft / 5.00 m
   Ends:   Unarmoured
     Main Belt covers 105 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      1.18" / 30 mm   393.70 ft / 120.00 m   22.97 ft / 7.00 m
   Beam between torpedo bulkheads 65.62 ft / 20.00 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   11.8" / 300 mm   3.54" / 90 mm      11.8" / 300 mm
   2nd:   2.36" / 60 mm   0.79" / 20 mm      2.36" / 60 mm

   - Armoured deck - multiple decks:
   For and Aft decks: 2.95" / 75 mm
   Forecastle: 0.79" / 20 mm  Quarter deck: 1.97" / 50 mm

   - Conning towers: Forward 4.72" / 120 mm, Aft 4.72" / 120 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 3 shafts, 43,257 shp / 32,270 Kw = 24.00 kts
   Range 5,000nm at 12.00 kts
   Bunker at max displacement = 1,569 tons

Complement:
   823 - 1,071

Cost:
   £1.912 million / $7.650 million

Distribution of weights at normal displacement:
   Armament: 1,579 tons, 8.1 %
      - Guns: 1,579 tons, 8.1 %
   Armour: 7,126 tons, 36.6 %
      - Belts: 3,472 tons, 17.8 %
      - Torpedo bulkhead: 395 tons, 2.0 %
      - Armament: 1,328 tons, 6.8 %
      - Armour Deck: 1,784 tons, 9.2 %
      - Conning Towers: 147 tons, 0.8 %
   Machinery: 1,666 tons, 8.6 %
   Hull, fittings & equipment: 6,810 tons, 35.0 %
   Fuel, ammunition & stores: 1,686 tons, 8.7 %
   Miscellaneous weights: 595 tons, 3.1 %
      - Hull below water: 410 tons
      - Above deck: 185 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     29,338 lbs / 13,308 Kg = 43.8 x 11.0 " / 280 mm shells or 5.3 torpedoes
   Stability (Unstable if below 1.00): 1.14
   Metacentric height 4.5 ft / 1.4 m
   Roll period: 15.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 54 %
         - Recoil effect (Restricted arc if above 1.00): 0.46
   Seaboat quality  (Average = 1.00): 1.07

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.600 / 0.604
   Length to Beam Ratio: 7.92 : 1
   'Natural speed' for length: 24.97 kts
   Power going to wave formation at top speed: 45 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   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 %,  16.40 ft / 5.00 m,  15.58 ft / 4.75 m
      - Forward deck:   30.00 %,  15.58 ft / 4.75 m,  13.12 ft / 4.00 m
      - Aft deck:   35.00 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
      - Quarter deck:   15.00 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
      - Average freeboard:      14.05 ft / 4.28 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 73.2 %
      - Above water (accommodation/working, high = better): 113.8 %
   Waterplane Area: 35,899 Square feet or 3,335 Square metres
   Displacement factor (Displacement / loading): 113 %
   Structure weight / hull surface area: 159 lbs/sq ft or 776 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1.14
      - Longitudinal: 0.96
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Adequate accommodation and workspace room

410t - Electric Drives
135t - 1908 FC
25t - LR Radio
25t - NF Devices

[Jefgte]

It is certain that the T3x360 are more serious than the T2x280 vs BBs.

[The Rock Doctor]

The beam for that tripled-14" design might be kind of low.  The stats are otherwise not too bad for an emergency build, if an emergency build is needed urgently.

[TacCovert4]

The beam for that tripled-14" design might be kind of low.  The stats are otherwise not too bad for an emergency build, if an emergency build is needed urgently.

Overall beam or beam between bulkheads? 

[The Rock Doctor]

Both; the lowest beam I can find on a historical 3x14" ship was Nevada, at 95'.

[TacCovert4]

Both; the lowest beam I can find on a historical 3x14" ship was Nevada, at 95'.

Interesting.   I'll have to fiddle it up to 30 or so then.

[Desertfox]

Might be a good ship to test Kirk's and my methods on:
https://www.navalism.org/index.php/topic,7370.0.html

[TacCovert4]

Possibly.

Overall I'll widen the beam to 30m and then reduce length and draft until I get the weight/comp down while not utterly demolishing my seakeeping. 

Should make for a hella maneuverable ship.  The standards were noted for their tight turning circle and they're going to 'leaner' than this ship.

Obviously in a perfect world I'd go with a 3x3x360mm Battleship.  But I'm preparing for the significant possibility that Snip and I turn the Caicos into Ironbottom Sound.  If that were to happen, then in 1916 I would deploy a 3 battleship battle line.  And call it OCD, but I don't consider a 3 ship battle line to be sufficient.  I consider 4-6 ships to be the proper number for a battle squadron, I had been hoping to flesh out all my BBs into a 5 BB Battle Squadron in the Caribbean.  This is prepping for the Veracruz class, which aren't great battleships anyway, to be sunk or sufficiently mauled that it's impractical to rebuild them.  If I lose a lot of battleships in this war, I'll need something that's functional yet cheap to build as a battle line unit.....so that's why the 2x3x360mm 'stubby and slow dunkerque' design is being fiddled with. 

As for secondaries, ultimately they'll be replaced with 130mm twins.  But given the parameters for me to start building this class, I need to anticipate starting it before I get any new guns completed.

[TacCovert4]

Updated version of the Coastal BB.  Points of note:
1)  Beam widened to 30m. 
2)  Tonnage comes up by around 2000t
3)  Armor goes to uniform 260mm, all or nothing.....but with quite a bit of extra room in that citadel.  Shows good floatation and torpedo resistance.
4)  A bit shorter, and the BC dropped slightly....she should turn like no tomorrow.
5)  Accident with non-superfiring B turret fixed.  Now it's a Dunkerque arrangement with triples, all can fire on about that 270 arc which should help with FC solutions.


Grand Turk, Aztec Coastal Battleship laid down 1914

Displacement:
   18,445 t light; 19,376 t standard; 20,258 t normal; 20,965 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (528.41 ft / 524.93 ft) x 98.43 ft x (23.95 / 24.62 ft)
   (161.06 m / 160.00 m) x 30.00 m  x (7.30 / 7.50 m)

Armament:
      6 - 14.17" / 360 mm 45.0 cal guns - 1,435.69lbs / 651.22kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1914 Model
     2 x 3-gun mounts on centreline, forward evenly spread
      1 raised mount
      16 - 3.94" / 100 mm 50.0 cal guns - 32.30lbs / 14.65kg shells, 150 per gun
     Quick firing guns in deck and hoist mounts, 1914 Model
     16 x Single mounts on sides, evenly spread
      4 - 2.76" / 70.0 mm 50.0 cal guns - 11.09lbs / 5.03kg shells, 150 per gun
     Breech loading guns in deck mounts, 1914 Model
     4 x Single mounts on centreline, aft evenly spread
      4 raised mounts
      16 - 0.31" / 8.0 mm 70.0 cal guns - 0.02lbs / 0.01kg shells, 2,000 per gun
     Machine guns in deck mounts, 1914 Model
     8 x Twin mounts on sides, evenly spread
      Weight of broadside 9,176 lbs / 4,162 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   10.2" / 260 mm   393.70 ft / 120.00 m   16.40 ft / 5.00 m
   Ends:   Unarmoured
     Main Belt covers 115 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      0.98" / 25 mm   328.08 ft / 100.00 m   22.97 ft / 7.00 m
   Beam between torpedo bulkheads 85.30 ft / 26.00 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   10.2" / 260 mm   3.54" / 90 mm      10.2" / 260 mm
   2nd:   2.36" / 60 mm   0.79" / 20 mm      2.36" / 60 mm

   - Armoured deck - multiple decks:
   For and Aft decks: 2.95" / 75 mm
   Forecastle: 0.00" / 0 mm  Quarter deck: 1.57" / 40 mm

   - Conning towers: Forward 3.94" / 100 mm, Aft 3.94" / 100 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 3 shafts, 49,023 shp / 36,571 Kw = 24.00 kts
   Range 5,000nm at 12.00 kts
   Bunker at max displacement = 1,589 tons

Complement:
   848 - 1,103

Cost:
   £2.255 million / $9.020 million

Distribution of weights at normal displacement:
   Armament: 1,951 tons, 9.6 %
      - Guns: 1,951 tons, 9.6 %
   Armour: 6,219 tons, 30.7 %
      - Belts: 2,857 tons, 14.1 %
      - Torpedo bulkhead: 274 tons, 1.4 %
      - Armament: 1,204 tons, 5.9 %
      - Armour Deck: 1,757 tons, 8.7 %
      - Conning Towers: 126 tons, 0.6 %
   Machinery: 1,888 tons, 9.3 %
   Hull, fittings & equipment: 7,636 tons, 37.7 %
   Fuel, ammunition & stores: 1,814 tons, 9.0 %
   Miscellaneous weights: 750 tons, 3.7 %
      - Hull below water: 500 tons
      - Above deck: 250 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     31,171 lbs / 14,139 Kg = 21.9 x 14.2 " / 360 mm shells or 5.3 torpedoes
   Stability (Unstable if below 1.00): 1.34
   Metacentric height 8.2 ft / 2.5 m
   Roll period: 14.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 53 %
         - Recoil effect (Restricted arc if above 1.00): 0.36
   Seaboat quality  (Average = 1.00): 1.06

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.573 / 0.577
   Length to Beam Ratio: 5.33 : 1
   'Natural speed' for length: 22.91 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   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 %,  19.69 ft / 6.00 m,  18.86 ft / 5.75 m
      - Forward deck:   30.00 %,  18.86 ft / 5.75 m,  17.22 ft / 5.25 m
      - Aft deck:   35.00 %,  17.22 ft / 5.25 m,  17.22 ft / 5.25 m
      - Quarter deck:   15.00 %,  17.22 ft / 5.25 m,  17.22 ft / 5.25 m
      - Average freeboard:      17.86 ft / 5.45 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 82.8 %
      - Above water (accommodation/working, high = better): 145.7 %
   Waterplane Area: 36,844 Square feet or 3,423 Square metres
   Displacement factor (Displacement / loading): 107 %
   Structure weight / hull surface area: 180 lbs/sq ft or 879 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.92
      - Longitudinal: 1.94
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room

500t - Electric Drives
200t - 1908 FC
25t - LR Radio
25t - NF Devices

Decks are:  60mm w/ 15mm splinter, 40mm single deck

[TacCovert4]

Anticipating the need to rapidly build 'warships' on a severely taxed budget due to anticipated overall losses of small craft and old destroyers.....the whole GrosseTorpedoboot concept is reprised and refined:

TB-X, Aztec Torpedo Boat laid down 1914

Displacement:
   470 t light; 484 t standard; 532 t normal; 570 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (290.24 ft / 287.07 ft) x 22.97 ft x (6.89 / 7.22 ft)
   (88.46 m / 87.50 m) x 7.00 m  x (2.10 / 2.20 m)

Armament:
      3 - 2.76" / 70.0 mm 50.0 cal guns - 11.08lbs / 5.03kg shells, 200 per gun
     Quick firing guns in deck mounts, 1914 Model
     3 x Single mounts on centreline ends, majority aft
      1 raised mount aft - superfiring
      8 - 0.31" / 8.0 mm 70.0 cal guns - 0.02lbs / 0.01kg shells, 2,000 per gun
     Machine guns in deck mounts, 1914 Model
     4 x Twin mounts on sides, evenly spread
      Weight of broadside 33 lbs / 15 kg

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 17,321 shp / 12,922 Kw = 31.89 kts
   Range 2,500nm at 12.00 kts
   Bunker at max displacement = 86 tons

Complement:
   55 - 72

Cost:
   £0.075 million / $0.301 million

Distribution of weights at normal displacement:
   Armament: 7 tons, 1.4 %
      - Guns: 7 tons, 1.4 %
   Machinery: 290 tons, 54.5 %
   Hull, fittings & equipment: 154 tons, 28.9 %
   Fuel, ammunition & stores: 62 tons, 11.7 %
   Miscellaneous weights: 19 tons, 3.6 %
      - On freeboard deck: 18 tons
      - Above deck: 1 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     151 lbs / 68 Kg = 14.4 x 2.8 " / 70 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.38
   Metacentric height 1.0 ft / 0.3 m
   Roll period: 9.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 39 %
         - Recoil effect (Restricted arc if above 1.00): 0.08
   Seaboat quality  (Average = 1.00): 0.60

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.410 / 0.420
   Length to Beam Ratio: 12.50 : 1
   'Natural speed' for length: 16.94 kts
   Power going to wave formation at top speed: 66 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   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 %,  11.81 ft / 3.60 m,  11.15 ft / 3.40 m
      - Forward deck:   30.00 %,  11.15 ft / 3.40 m,  8.20 ft / 2.50 m
      - Aft deck:   41.00 %,  8.20 ft / 2.50 m,  8.20 ft / 2.50 m
      - Quarter deck:   9.00 %,  8.20 ft / 2.50 m,  8.20 ft / 2.50 m
      - Average freeboard:      9.29 ft / 2.83 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 179.8 %
      - Above water (accommodation/working, high = better): 124.8 %
   Waterplane Area: 4,083 Square feet or 379 Square metres
   Displacement factor (Displacement / loading): 39 %
   Structure weight / hull surface area: 21 lbs/sq ft or 104 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.01
      - Overall: 0.53
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Caution: Lacks seaworthiness - very limited seakeeping ability


18t 2 x 3 x 533mm TT Centerline behind bridge

1t - 1908 Fire Control

[TacCovert4]

With the loss of a full third of the fleet's mine warfare ships, a desperate need for a fast minelayer is observed.  The current economic pressures due to ongoing capital ship construction that cannot be slowed after Ironbottom Bay mean that a cruiser-based minelayer is not possible.  Thus planning begins in earnest for high-speed minelayers based on existing Destroyer concepts.  Two designs are brought forward, one that can begin construction immediately and another that can begin construction in January of 1915:

DD-M, Aztec Fast Minelayer laid down 1915

Displacement:
   1,000 t light; 1,031 t standard; 1,191 t normal; 1,319 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (326.83 ft / 322.83 ft) x 27.17 ft x (11.06 / 11.88 ft)
   (99.62 m / 98.40 m) x 8.28 m  x (3.37 / 3.62 m)

Armament:
      3 - 3.94" / 100 mm 50.0 cal guns - 32.30lbs / 14.65kg shells, 130 per gun
     Quick firing guns in deck mounts, 1915 Model
     3 x Single mounts on centreline ends, majority forward
      2 raised mounts - superfiring
      8 - 0.31" / 8.0 mm 60.0 cal guns - 0.02lbs / 0.01kg shells, 1,500 per gun
     Machine guns in deck mounts, 1915 Model
     4 x Single mounts on sides, evenly spread
      Weight of broadside 97 lbs / 44 kg

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 22,927 shp / 17,104 Kw = 30.50 kts
   Range 5,500nm at 12.00 kts
   Bunker at max displacement = 288 tons

Complement:
   100 - 131

Cost:
   £0.182 million / $0.728 million

Distribution of weights at normal displacement:
   Armament: 20 tons, 1.6 %
      - Guns: 20 tons, 1.6 %
   Machinery: 605 tons, 50.8 %
   Hull, fittings & equipment: 249 tons, 20.9 %
   Fuel, ammunition & stores: 191 tons, 16.0 %
   Miscellaneous weights: 127 tons, 10.7 %
      - On freeboard deck: 100 tons
      - Above deck: 27 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     295 lbs / 134 Kg = 9.7 x 3.9 " / 100 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.24
   Metacentric height 1.0 ft / 0.3 m
   Roll period: 11.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 45 %
         - Recoil effect (Restricted arc if above 1.00): 0.17
   Seaboat quality  (Average = 1.00): 0.80

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.430 / 0.443
   Length to Beam Ratio: 11.88 : 1
   'Natural speed' for length: 17.97 kts
   Power going to wave formation at top speed: 63 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   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 %,  14.90 ft / 4.54 m,  13.12 ft / 4.00 m
      - Forward deck:   30.00 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
      - Aft deck:   35.00 %,  8.04 ft / 2.45 m,  8.04 ft / 2.45 m
      - Quarter deck:   15.00 %,  8.04 ft / 2.45 m,  8.04 ft / 2.45 m
      - Average freeboard:      10.72 ft / 3.27 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 168.5 %
      - Above water (accommodation/working, high = better): 108.9 %
   Waterplane Area: 5,507 Square feet or 512 Square metres
   Displacement factor (Displacement / loading): 62 %
   Structure weight / hull surface area: 25 lbs/sq ft or 122 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.00
      - Overall: 0.53
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather


25t - LR Radio
2t - 1908 FC
100t - 100 Mines

[TacCovert4]

And the Variant that can begin construction immediately:

GMB-1, Aztec Fast Mine Boat laid down 1914

Displacement:
   500 t light; 514 t standard; 587 t normal; 646 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (291.57 ft / 288.71 ft) x 22.97 ft x (7.38 / 7.88 ft)
   (88.87 m / 88.00 m) x 7.00 m  x (2.25 / 2.40 m)

Armament:
      2 - 2.76" / 70.0 mm 50.0 cal guns - 11.09lbs / 5.03kg shells, 160 per gun
     Quick firing guns in deck mounts, 1914 Model
     2 x Single mounts on centreline, forward evenly spread
      1 raised mount
      4 - 0.31" / 8.0 mm 70.0 cal guns - 0.02lbs / 0.01kg shells, 2,000 per gun
     Machine guns in deck mounts, 1914 Model
     2 x Twin mounts on sides, forward deck aft
      Weight of broadside 22 lbs / 10 kg

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 13,782 shp / 10,281 Kw = 29.75 kts
   Range 5,500nm at 10.00 kts
   Bunker at max displacement = 133 tons

Complement:
   59 - 77

Cost:
   £0.077 million / $0.309 million

Distribution of weights at normal displacement:
   Armament: 5 tons, 0.8 %
      - Guns: 5 tons, 0.8 %
   Machinery: 300 tons, 51.0 %
   Hull, fittings & equipment: 144 tons, 24.6 %
   Fuel, ammunition & stores: 88 tons, 14.9 %
   Miscellaneous weights: 51 tons, 8.7 %
      - On freeboard deck: 50 tons
      - Above deck: 1 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     163 lbs / 74 Kg = 15.6 x 2.8 " / 70 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.18
   Metacentric height 0.7 ft / 0.2 m
   Roll period: 11.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 56 %
         - Recoil effect (Restricted arc if above 1.00): 0.07
   Seaboat quality  (Average = 1.00): 0.83

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.420 / 0.433
   Length to Beam Ratio: 12.57 : 1
   'Natural speed' for length: 16.99 kts
   Power going to wave formation at top speed: 63 %
   Trim (Max stability = 0, Max steadiness = 100): 68
   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 %,  10.66 ft / 3.25 m,  9.84 ft / 3.00 m
      - Forward deck:   30.00 %,  9.84 ft / 3.00 m,  8.20 ft / 2.50 m
      - Aft deck:   35.00 %,  8.20 ft / 2.50 m,  8.20 ft / 2.50 m
      - Quarter deck:   15.00 %,  8.20 ft / 2.50 m,  8.20 ft / 2.50 m
      - Average freeboard:      8.84 ft / 2.70 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 167.1 %
      - Above water (accommodation/working, high = better): 114.5 %
   Waterplane Area: 4,134 Square feet or 384 Square metres
   Displacement factor (Displacement / loading): 52 %
   Structure weight / hull surface area: 20 lbs/sq ft or 98 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 0.79
      - Overall: 0.52
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather


50t - 50 x Mines

1t - 1908 Fire Control