Vilnius Union Ships, 1920+: Electric Drive Boogaloo

[The Rock Doctor]

I'll add a couple of tonnes for some machinery to adjust the inclination of the belt as circumstances dictate.

[Jefgte]

I'll add a couple of tonnes for some machinery to adjust the inclination of the belt as circumstances dictate.

Ballasting ?

[Kaiser Kirk]

I'll add a couple of tonnes for some machinery to adjust the inclination of the belt as circumstances dictate.

Ah yes, like venetian blinds, just waterline vents you can open or *glub glub* close

[The Rock Doctor]

I don't think I've posted the T-class torpedo-boats, but if I have, pretend otherwise.

It's not spectacular.  It does the main things the Union wants, which is to shoot four 130mm guns, have a long-range wireless, and keep up with fast capital ships for a while.

Appearance-wise it's a bit of a mash-up between the preceding S-class and the Q-class sloops.

Enter ship name, Enter country Enter ship type laid down 1923

Displacement:
   1,883 t light; 1,971 t standard; 2,250 t normal; 2,473 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (388.70 ft / 377.30 ft) x 36.09 ft x (14.11 / 15.03 ft)
   (118.48 m / 115.00 m) x 11.00 m  x (4.30 / 4.58 m)

Armament:
      4 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1923 Model
     4 x Single mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
      1 - 3.94" / 100 mm 45.0 cal gun - 30.77lbs / 13.96kg shells, 250 per gun
     Anti-air gun in deck mount, 1923 Model
     1 x Single mount on sides, forward deck aft
      1 raised mount
      4 - 0.59" / 15.0 mm 45.0 cal guns - 0.10lbs / 0.05kg shells, 4,000 per gun
     Machine guns in deck mounts, 1923 Model
     4 x Single mounts on sides, evenly spread
      4 double raised mounts
      Weight of broadside 302 lbs / 137 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   2nd:   0.79" / 20 mm   0.12" / 3 mm            -

   - Conning towers: Forward 0.98" / 25 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 40,214 shp / 30,000 Kw = 32.25 kts
   Range 12,000nm at 10.00 kts (13,200 factoring in the geared drive bonus)
   Bunker at max displacement = 502 tons

Complement:
   163 - 212

Cost:
   £0.731 million / $2.924 million

Distribution of weights at normal displacement:
   Armament: 79 tons, 3.5 %
      - Guns: 79 tons, 3.5 %
   Armour: 32 tons, 1.4 %
      - Armament: 28 tons, 1.2 %
      - Conning Tower: 4 tons, 0.2 %
   Machinery: 1,129 tons, 50.2 %
   Hull, fittings & equipment: 534 tons, 23.7 %
   Fuel, ammunition & stores: 367 tons, 16.3 %
   Miscellaneous weights: 110 tons, 4.9 %
      - Hull below water: 15 tons
      - On freeboard deck: 50 tons
      - Above deck: 45 tons

Fittings:
-8 t:  1918 Fire control (AD)
-25 t:  L/R wireless (AD)
-10 t:  Nightfighting doodads (AD)
-24 t:  2x3 21" TT (FD)
-15 t:  ASW munitions (FD)
-13 t:  Weight reserve (mostly FD)
-15 t:  Enhanced hydrophone package (BW) 

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     538 lbs / 244 Kg = 8.0 x 5.1 " / 130 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.18
   Metacentric height 1.5 ft / 0.4 m
   Roll period: 12.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.47
   Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.410 / 0.423
   Length to Beam Ratio: 10.45 : 1
   'Natural speed' for length: 19.42 kts
   Power going to wave formation at top speed: 63 %
   Trim (Max stability = 0, Max steadiness = 100): 60
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  22.31 ft / 6.80 m,  18.37 ft / 5.60 m
      - Forward deck:   26.00 %,  18.37 ft / 5.60 m,  18.37 ft / 5.60 m
      - Aft deck:   39.00 %,  10.50 ft / 3.20 m,  10.50 ft / 3.20 m
      - Quarter deck:   15.00 %,  10.50 ft / 3.20 m,  10.50 ft / 3.20 m
      - Average freeboard:      14.44 ft / 4.40 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 174.8 %
      - Above water (accommodation/working, high = better): 134.5 %
   Waterplane Area: 8,432 Square feet or 783 Square metres
   Displacement factor (Displacement / loading): 73 %
   Structure weight / hull surface area: 36 lbs/sq ft or 176 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.34
      - Overall: 0.55
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room

[The Rock Doctor]

The Union's movin' on up to a newer, larger type of light cruiser.

The class uses a new two-gun 150mm turret and barbette; four are embarked.  Also new are quadruple torpedo carriage for extra keel-breaking opportunities.  A single floatplane is embarked, without permanent hanger - the designers weren't quite sure how to fit one in on a ship this size just yet.

Consideration was given towards building a slightly less expensive ship with ~30 or 31 knots instead of 32, but the accountants were convinced that the incremental cost of building in the additional speed now was actually less than installing new machinery in ten or fifteen years.  Not that the accountants were assured of approving the latter in the first place, mind you.

Enter ship name, Enter country Enter ship type laid down 1923

Displacement:
   7,911 t light; 8,228 t standard; 9,142 t normal; 9,873 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (592.02 ft / 577.43 ft) x 57.74 ft x (21.33 / 22.53 ft)
   (180.45 m / 176.00 m) x 17.60 m  x (6.50 / 6.87 m)

Armament:
      8 - 5.91" / 150 mm 45.0 cal guns - 103.86lbs / 47.11kg shells, 250 per gun
     Breech loading guns in turret on barbette mounts, 1923 Model
     4 x 2-gun mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
      4 - 3.94" / 100 mm 45.0 cal guns - 30.78lbs / 13.96kg shells, 250 per gun
     Anti-air guns in deck mounts, 1923 Model
     4 x Single mounts on sides, evenly spread
      4 - 0.59" / 15.0 mm 45.0 cal guns - 0.11lbs / 0.05kg shells, 4,000 per gun
     Machine guns in deck mounts, 1923 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 954 lbs / 433 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.54" / 90 mm   390.42 ft / 119.00 m   16.37 ft / 4.99 m
   Ends:   Unarmoured
     Main Belt covers 104 % of normal length
     Main Belt inclined 16.00 degrees (positive = in)

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.91" / 150 mm   0.98" / 25 mm      3.54" / 90 mm
   2nd:   0.79" / 20 mm   0.39" / 10 mm            -

   - Armoured deck - multiple decks:
   For and Aft decks: 0.98" / 25 mm
   Forecastle: 0.98" / 25 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 3.54" / 90 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 79,089 shp / 59,000 Kw = 32.03 kts
   Range 16,400nm at 10.00 kts
   Bunker at max displacement = 1,646 tons

Complement:
   466 - 607

Cost:
   £2.128 million / $8.513 million

Distribution of weights at normal displacement:
   Armament: 260 tons, 2.8 %
      - Guns: 260 tons, 2.8 %
   Armour: 1,566 tons, 17.1 %
      - Belts: 918 tons, 10.0 %
      - Armament: 225 tons, 2.5 %
      - Armour Deck: 390 tons, 4.3 %
      - Conning Tower: 33 tons, 0.4 %
   Machinery: 2,643 tons, 28.9 %
   Hull, fittings & equipment: 3,161 tons, 34.6 %
   Fuel, ammunition & stores: 1,231 tons, 13.5 %
   Miscellaneous weights: 280 tons, 3.1 %
      - On freeboard deck: 130 tons
      - Above deck: 150 tons

Fittings:
-26 t:  1918 fire control (AD)
-50 t:  Command facilities (AD)
-25 t:  L/R wireless (AD)
-25 t:  Nightfighting doodads (AD)
-30 t :  Armed floatplane and catapult (no permanent hanger) (FD)
-32 t:  2x4 530mm torpedos (no reloads) (FD)
-92 t:  Weight reserve (mostly FD)

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     9,703 lbs / 4,401 Kg = 94.2 x 5.9 " / 150 mm shells or 1.4 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 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.29
   Seaboat quality  (Average = 1.00): 1.08

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.450 / 0.460
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 24.03 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 55
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 4.92 ft / 1.50 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  26.57 ft / 8.10 m,  21.65 ft / 6.60 m
      - Forward deck:   30.00 %,  21.65 ft / 6.60 m,  21.65 ft / 6.60 m
      - Aft deck:   35.00 %,  13.78 ft / 4.20 m,  13.78 ft / 4.20 m
      - Quarter deck:   15.00 %,  13.78 ft / 4.20 m,  13.78 ft / 4.20 m
      - Average freeboard:      18.11 ft / 5.52 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 103.5 %
      - Above water (accommodation/working, high = better): 151.4 %
   Waterplane Area: 21,268 Square feet or 1,976 Square metres
   Displacement factor (Displacement / loading): 115 %
   Structure weight / hull surface area: 95 lbs/sq ft or 465 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.31
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room

[The Rock Doctor]

Correction to the torpedo-boat posted above.

-AA gun placement fixed.
-Machine gun placement lowered.
-Conning Tower armor deleted
-Misc. Weight increased (MOAR TORPEDOZ)

Enter ship name, Enter country Enter ship type laid down 1923

Displacement:
   1,884 t light; 1,971 t standard; 2,250 t normal; 2,473 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (388.70 ft / 377.30 ft) x 36.09 ft x (14.11 / 15.03 ft)
   (118.48 m / 115.00 m) x 11.00 m  x (4.30 / 4.58 m)

Armament:
      4 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1923 Model
     4 x Single mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
      1 - 3.94" / 100 mm 45.0 cal gun - 30.77lbs / 13.96kg shells, 250 per gun
     Anti-air gun in deck mount, 1923 Model
     1 x Single mount on centreline, forward deck aft
      1 raised mount
      4 - 0.59" / 15.0 mm 45.0 cal guns - 0.10lbs / 0.05kg shells, 4,000 per gun
     Machine guns in deck mounts, 1923 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 302 lbs / 137 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   2nd:   0.79" / 20 mm   0.12" / 3 mm            -

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 40,214 shp / 30,000 Kw = 32.25 kts
   Range 12,000nm at 10.00 kts
   Bunker at max displacement = 502 tons

Complement:
   163 - 212

Cost:
   £0.731 million / $2.924 million

Distribution of weights at normal displacement:
   Armament: 79 tons, 3.5 %
      - Guns: 79 tons, 3.5 %
   Armour: 28 tons, 1.2 %
      - Armament: 28 tons, 1.2 %
   Machinery: 1,129 tons, 50.2 %
   Hull, fittings & equipment: 533 tons, 23.7 %
   Fuel, ammunition & stores: 367 tons, 16.3 %
   Miscellaneous weights: 115 tons, 5.1 %
      - Hull below water: 15 tons
      - On freeboard deck: 55 tons
      - Above deck: 45 tons

Fittings:
-8 t:  1918 Fire control (AD)
-25 t:  L/R wireless (AD)
-10 t:  Nightfighting doodads (AD)
-32 t:  2x4 21" TT (FD)
-15 t:  ASW munitions (FD)
-10 t:  Weight reserve (mostly FD)
-15 t:  Enhanced hydrophone package (BW)

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     538 lbs / 244 Kg = 8.0 x 5.1 " / 130 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.18
   Metacentric height 1.5 ft / 0.4 m
   Roll period: 12.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.47
   Seaboat quality  (Average = 1.00): 1.01

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.410 / 0.423
   Length to Beam Ratio: 10.45 : 1
   'Natural speed' for length: 19.42 kts
   Power going to wave formation at top speed: 63 %
   Trim (Max stability = 0, Max steadiness = 100): 60
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  22.31 ft / 6.80 m,  18.37 ft / 5.60 m
      - Forward deck:   26.00 %,  18.37 ft / 5.60 m,  18.37 ft / 5.60 m
      - Aft deck:   39.00 %,  10.50 ft / 3.20 m,  10.50 ft / 3.20 m
      - Quarter deck:   15.00 %,  10.50 ft / 3.20 m,  10.50 ft / 3.20 m
      - Average freeboard:      14.44 ft / 4.40 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 174.8 %
      - Above water (accommodation/working, high = better): 134.5 %
   Waterplane Area: 8,432 Square feet or 783 Square metres
   Displacement factor (Displacement / loading): 73 %
   Structure weight / hull surface area: 36 lbs/sq ft or 175 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.34
      - Overall: 0.55
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room

[Jefgte]

They are a little larger than those in the Byzantium PLAN.
LD 1923 -1500t / 1973t - 110mx10.8m
4x120 + 1x76.2AA + 4x47 + 8TTx533HW + 32 minen.
32kts - 7500nm/12kts (trials speed 32.5kts)
Broadside: 108 kg
Survivability: 225 Kg
"The ship has a slow and easy roll, a good stable firing platform"

Proportions are related.
;)

[Kaiser Kirk]

Kinda curious as to why you're putting LR radio on your destroyers.
Not a bad thing, just destroyers are tight on weight anyhow.

Also, heavy gun armor on those mounts....except the 'other' part.
I kinda had to make up rules for splinter penetration, and I based them off of what I remembered reading about 5" gun armor thickness on different USN ships being tied to shell splinters for that main gun.
So came up with the 1/6.  But the 'other' armor on the mounts is 20mm, which would shield vs. 120mm...and the Romans field 140mm.

Reading Friedman's destroyers, one of the observations he makes was that since the US lacked scout cruisers, they planned on using their destroyers in that role.
To do that, they had to rig the aerials, which required masts to get them high, and were heavy.
A reasonable analogy for 25t LR Radios...it's not the actual radio set, it's the berthing, the spare parts, the aerials etc.

For me, I'm kinda expecting my DDs to operate near my fleet, so I haven't worried greatly about the lack of LR radio.
I figure there's a cruiser to do it.

[The Rock Doctor]

Destroyers of that size certainly are tight, but I feel they're large enough that I can stick one in there and not have to worry about keeping a cruiser in close proximity for comms purposes.

Good point about the gun protection.  It'll cost me 6 ton to bump the "other" from 20 to 25mm, so I might take that out of the ASW munition inventory.  Or I might not. 

[The Rock Doctor]

The armored cruiser Straznik, as she'll appear when laid down. 

I'm quoting the original springsharp below, but expect the final design (to be posted in the encyclopedia later) will swap out the 10mm MG for 15mm MG and other minor changes, we'll see.

Aviation facilities include a single gunpowder catapult and two single-aircraft hangers flanking the aft funnel.  Two armed floatplanes embarked.

An Aztec-style razee for trade defence and/or battleline scouting.  It might be overkill, of course.

I don't current have a 2-gun 300mm gun, but can change that in time for 1923.


Enter ship name, Enter country Enter ship type laid down 1923

Displacement:
   17,916 t light; 18,878 t standard; 20,395 t normal; 21,609 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (727.61 ft / 711.94 ft) x 75.46 ft x (26.57 / 27.76 ft)
   (221.78 m / 217.00 m) x 23.00 m  x (8.10 / 8.46 m)

Armament:
      6 - 11.81" / 300 mm 45.0 cal guns - 830.84lbs / 376.86kg shells, 150 per gun
     Breech loading guns in turret on barbette mounts, 1923 Model
     3 x 2-gun mounts on centreline ends, majority forward
      1 raised mount - superfiring
      12 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1923 Model
     6 x 2-gun mounts on sides, evenly spread
      6 - 3.94" / 100 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 250 per gun
     Anti-air guns in deck mounts, 1923 Model
     6 x Single mounts on sides, evenly spread
      6 raised mounts
      8 - 0.39" / 10.0 mm 45.0 cal guns - 0.02lbs / 0.01kg shells, 4,000 per gun
     Machine guns in deck mounts, 1923 Model
     8 x Single mounts on sides, evenly spread
      8 double raised mounts
      Weight of broadside 5,981 lbs / 2,713 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   5.91" / 150 mm   462.76 ft / 141.05 m   16.37 ft / 4.99 m
   Ends:   Unarmoured
     Main Belt covers 100 % of normal length
     Main Belt inclined 16.00 degrees (positive = in)

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   11.8" / 300 mm   2.95" / 75 mm      7.87" / 200 mm
   2nd:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   3rd:   0.79" / 20 mm   0.39" / 10 mm            -

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

   - Conning towers: Forward 5.91" / 150 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 120,644 shp / 90,001 Kw = 31.86 kts
   Range 16,400nm at 10.00 kts
   Bunker at max displacement = 2,730 tons

Complement:
   853 - 1,109

Cost:
   £5.071 million / $20.284 million

Distribution of weights at normal displacement:
   Armament: 1,347 tons, 6.6 %
      - Guns: 1,347 tons, 6.6 %
   Armour: 4,817 tons, 23.6 %
      - Belts: 1,846 tons, 9.0 %
      - Armament: 964 tons, 4.7 %
      - Armour Deck: 1,912 tons, 9.4 %
      - Conning Tower: 95 tons, 0.5 %
   Machinery: 4,032 tons, 19.8 %
   Hull, fittings & equipment: 7,280 tons, 35.7 %
   Fuel, ammunition & stores: 2,479 tons, 12.2 %
   Miscellaneous weights: 440 tons, 2.2 %
      - On freeboard deck: 140 tons
      - Above deck: 300 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     23,479 lbs / 10,650 Kg = 28.5 x 11.8 " / 300 mm shells or 2.4 torpedoes
   Stability (Unstable if below 1.00): 1.06
   Metacentric height 3.7 ft / 1.1 m
   Roll period: 16.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.72
   Seaboat quality  (Average = 1.00): 1.14

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.500 / 0.507
   Length to Beam Ratio: 9.43 : 1
   'Natural speed' for length: 26.68 kts
   Power going to wave formation at top speed: 52 %
   Trim (Max stability = 0, Max steadiness = 100): 53
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 4.92 ft / 1.50 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  29.53 ft / 9.00 m,  24.61 ft / 7.50 m
      - Forward deck:   30.00 %,  24.61 ft / 7.50 m,  24.61 ft / 7.50 m
      - Aft deck:   35.00 %,  16.73 ft / 5.10 m,  16.73 ft / 5.10 m
      - Quarter deck:   15.00 %,  16.73 ft / 5.10 m,  16.73 ft / 5.10 m
      - Average freeboard:      21.06 ft / 6.42 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 90.0 %
      - Above water (accommodation/working, high = better): 162.8 %
   Waterplane Area: 35,794 Square feet or 3,325 Square metres
   Displacement factor (Displacement / loading): 110 %
   Structure weight / hull surface area: 143 lbs/sq ft or 698 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.29
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room

[Kaiser Kirk]

Question : The multiple armor decks - do you have a 50mm main deck and 25mm splinter ...or upper

General question : How far outsloped were external belts? 
I was tinkering with a SS and putting a -15 on it and started wondering.
This one is 16...is 20 ok ?
anyone know what the reasonable range was ?

If they are following the contour of the hull, there must be some tradeoffs or limitations.
Which would be in part why they started putting them internally.

General observation : It's interesting to see these ships.
The Parthian Zemaka class wasn't a response to the Aztec, I don't believe the Aztec
was even afloat, they were more intended for Byzantine/Japanese vessels.
Yet similar size range and speed - though I have 8x 255 vs 6x 300.

[The Rock Doctor]

It's supposed to be a single armored deck, which I failed to click on apparently.

My memory says the Iowas were about 18 degrees, but it's a good question and I'll go back to check on historical practice.

[The Rock Doctor]

A coastal defence torpedo-boat in the 500 t range.

Not especially fast or long-legged, but perhaps adequate for the North Erican seaboard and thereabouts.

Miscellaneous weight would include a basic hydrophone, either 2 x 4t 21" or 3 x 3t 21" torpedoes, and a few depth charges.

Enter ship name, Enter country Enter ship type laid down 1923

Displacement:
   497 t light; 513 t standard; 543 t normal; 568 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (233.30 ft / 223.10 ft) x 21.65 ft x (9.84 / 10.13 ft)
   (71.11 m / 68.00 m) x 6.60 m  x (3.00 / 3.09 m)

Armament:
      2 - 2.95" / 75.0 mm 45.0 cal guns - 12.98lbs / 5.89kg shells, 250 per gun
     Quick firing guns in deck mounts, 1923 Model
     2 x Single mounts on centreline, evenly spread
      2 - 0.59" / 15.0 mm 45.0 cal guns - 0.10lbs / 0.05kg shells, 4,000 per gun
     Machine guns in deck mounts, 1923 Model
     2 x Single mounts on sides, forward deck aft
      1 - 1.97" / 50.0 mm 45.0 cal gun - 3.85lbs / 1.74kg shells, 150 per gun
     Anti-air gun in deck mount, 1923 Model
     1 x Single mount on centreline, aft deck centre
      1 raised mount
      Weight of broadside 30 lbs / 14 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.79" / 20 mm   0.12" / 3 mm            -
   3rd:   0.79" / 20 mm   0.12" / 3 mm            -

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 17,426 shp / 13,000 Kw = 30.51 kts
   Range 3,000nm at 10.00 kts
   Bunker at max displacement = 55 tons

Complement:
   56 - 73

Cost:
   £0.173 million / $0.692 million

Distribution of weights at normal displacement:
   Armament: 6 tons, 1.1 %
      - Guns: 6 tons, 1.1 %
   Armour: 3 tons, 0.6 %
      - Armament: 3 tons, 0.6 %
   Machinery: 289 tons, 53.2 %
   Hull, fittings & equipment: 177 tons, 32.6 %
   Fuel, ammunition & stores: 46 tons, 8.5 %
   Miscellaneous weights: 22 tons, 4.0 %
      - Hull below water: 5 tons
      - On freeboard deck: 16 tons
      - Above deck: 1 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     155 lbs / 70 Kg = 12.0 x 3.0 " / 75 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.11
   Metacentric height 0.6 ft / 0.2 m
   Roll period: 11.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.14
   Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.400 / 0.406
   Length to Beam Ratio: 10.30 : 1
   'Natural speed' for length: 14.94 kts
   Power going to wave formation at top speed: 72 %
   Trim (Max stability = 0, Max steadiness = 100): 60
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  19.03 ft / 5.80 m,  16.08 ft / 4.90 m
      - Forward deck:   22.00 %,  16.08 ft / 4.90 m,  16.08 ft / 4.90 m
      - Aft deck:   43.00 %,  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:      11.75 ft / 3.58 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 176.0 %
      - Above water (accommodation/working, high = better): 109.9 %
   Waterplane Area: 2,974 Square feet or 276 Square metres
   Displacement factor (Displacement / loading): 45 %
   Structure weight / hull surface area: 24 lbs/sq ft or 116 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 4.75
      - Overall: 0.62
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room

Trial speed 32.96 (bonus 2.45)

[The Rock Doctor]

And a smaller 250 t-ish boat that could be built and maintained with the Union's 50m drydock suite.  On the upside, it's a good seaboat (not to be confused with Good Seaboat) for its size and it can haul around a few big fish.  On the downside, the type is definitely limited by its top speed and there's no capacity for ASW.

But you do get a sketch.

Enter ship name, Enter country Enter ship type laid down 1923

Displacement:
   248 t light; 255 t standard; 275 t normal; 292 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (163.93 ft / 155.51 ft) x 15.75 ft x (9.84 / 10.23 ft)
   (49.97 m / 47.40 m) x 4.80 m  x (3.00 / 3.12 m)

Armament:
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 250 per gun
     Quick firing guns in deck mounts, 1923 Model
     2 x Single mounts on centreline, evenly spread
      2 - 0.59" / 15.0 mm 45.0 cal guns - 0.10lbs / 0.05kg shells, 4,000 per gun
     Machine guns in deck mounts, 1923 Model
     2 x Single mounts on sides, forward deck aft
      Weight of broadside 8 lbs / 4 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.79" / 20 mm   0.12" / 3 mm            -

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 8,043 shp / 6,000 Kw = 26.67 kts
   Range 3,000nm at 10.00 kts
   Bunker at max displacement = 37 tons

Complement:
   33 - 43

Cost:
   £0.085 million / $0.342 million

Distribution of weights at normal displacement:
   Armament: 2 tons, 0.6 %
      - Guns: 2 tons, 0.6 %
   Armour: 2 tons, 0.9 %
      - Armament: 2 tons, 0.9 %
   Machinery: 145 tons, 52.5 %
   Hull, fittings & equipment: 86 tons, 31.3 %
   Fuel, ammunition & stores: 28 tons, 10.0 %
   Miscellaneous weights: 13 tons, 4.7 %
      - On freeboard deck: 12 tons
      - Above deck: 1 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     77 lbs / 35 Kg = 20.2 x 2.0 " / 50 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.09
   Metacentric height 0.4 ft / 0.1 m
   Roll period: 10.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.08
   Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.400 / 0.408
   Length to Beam Ratio: 9.88 : 1
   'Natural speed' for length: 12.47 kts
   Power going to wave formation at top speed: 74 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  14.11 ft / 4.30 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:   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:      9.47 ft / 2.89 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 171.6 %
      - Above water (accommodation/working, high = better): 77.3 %
   Waterplane Area: 1,508 Square feet or 140 Square metres
   Displacement factor (Displacement / loading): 49 %
   Structure weight / hull surface area: 19 lbs/sq ft or 92 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 8.08
      - Overall: 0.66
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room

Trial speed 31.08 (bonus 4.41)

[The Rock Doctor]

Just fooling around with a river monitor carrying one of the new 2-gun 150/45mm turrets.  It would certainly be overkill against most or all river craft, but potentially useful against fortifications. 

If there happen to be fortifications on that river.

Notionally the ship resembles a much smaller Attakulla, with that weird raised foredeck that works so much better than a double-superfiring turret as a means of matching up shallow draft and sufficient numbers of decks to accommodate the turret.

Forward of the foredeck, technically on the forecastle, would be a couple of 50mm RF guns.

Amidships we'd have a small multi-level bridge structure with fire control, searchlights, and long-range wireless.  Aft we'd have a hanger and deckspace for an armed floatplane to spot targets and shot-fall.

Enter ship name, Enter country Enter ship type laid down 1923

Displacement:
   979 t light; 1,023 t standard; 1,044 t normal; 1,060 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (228.98 ft / 223.10 ft) x 42.65 ft x (5.91 / 5.99 ft)
   (69.79 m / 68.00 m) x 13.00 m  x (1.80 / 1.82 m)

Armament:
      2 - 5.91" / 150 mm 45.0 cal guns - 103.86lbs / 47.11kg shells, 150 per gun
     Breech loading guns in turret on barbette mount, 1923 Model
     1 x 2-gun mount on centreline, forward deck centre
      1 raised mount
      4 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.75kg shells, 250 per gun
     Breech loading guns in deck mounts, 1923 Model
     2 x Single mounts on sides amidships
      2 raised mounts
     2 x Single mounts on sides, forward deck forward
      1 - 3.94" / 100 mm 45.0 cal gun - 30.77lbs / 13.96kg shells, 150 per gun
     Anti-air gun in deck mount, 1923 Model
     1 x Single mount on centreline, aft deck forward
      1 raised mount
      4 - 0.59" / 15.0 mm 45.0 cal guns - 0.10lbs / 0.05kg shells, 4,000 per gun
     Machine guns in deck mounts, 1923 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 254 lbs / 115 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   0.98" / 25 mm   144.36 ft / 44.00 m   11.81 ft / 3.60 m
   Ends:   Unarmoured
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   3.94" / 100 mm   0.98" / 25 mm      2.95" / 75 mm
   2nd:   0.79" / 20 mm   0.12" / 3 mm            -
   3rd:   0.79" / 20 mm   0.12" / 3 mm            -

   - Armoured deck - multiple decks:
   For and Aft decks: 0.79" / 20 mm
   Forecastle: 0.00" / 0 mm  Quarter deck: 0.79" / 20 mm

   - Conning towers: Forward 0.98" / 25 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 435 shp / 325 Kw = 10.06 kts
   Range 1,000nm at 10.00 kts
   Bunker at max displacement = 37 tons

Complement:
   91 - 119

Cost:
   £0.170 million / $0.679 million

Distribution of weights at normal displacement:
   Armament: 68 tons, 6.5 %
      - Guns: 68 tons, 6.5 %
   Armour: 225 tons, 21.6 %
      - Belts: 76 tons, 7.3 %
      - Armament: 57 tons, 5.4 %
      - Armour Deck: 90 tons, 8.6 %
      - Conning Tower: 2 tons, 0.2 %
   Machinery: 15 tons, 1.4 %
   Hull, fittings & equipment: 572 tons, 54.8 %
   Fuel, ammunition & stores: 65 tons, 6.2 %
   Miscellaneous weights: 99 tons, 9.5 %
      - On freeboard deck: 57 tons
      - Above deck: 42 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     7,592 lbs / 3,444 Kg = 73.7 x 5.9 " / 150 mm shells or 4.0 torpedoes
   Stability (Unstable if below 1.00): 1.16
   Metacentric height 1.8 ft / 0.6 m
   Roll period: 13.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.45
   Seaboat quality  (Average = 1.00): 1.62

Hull form characteristics:
   Hull has low forecastle, rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.650 / 0.652
   Length to Beam Ratio: 5.23 : 1
   'Natural speed' for length: 14.94 kts
   Power going to wave formation at top speed: 28 %
   Trim (Max stability = 0, Max steadiness = 100): 62
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   30.00 %,  14.76 ft / 4.50 m,  9.84 ft / 3.00 m
      - Forward deck:   20.00 %,  17.72 ft / 5.40 m,  17.72 ft / 5.40 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:      12.01 ft / 3.66 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 26.1 %
      - Above water (accommodation/working, high = better): 193.9 %
   Waterplane Area: 7,289 Square feet or 677 Square metres
   Displacement factor (Displacement / loading): 185 %
   Structure weight / hull surface area: 65 lbs/sq ft or 319 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.88
      - Longitudinal: 3.09
      - 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