Vilnius Union Ships, 1911 - 1919

Started by The Rock Doctor, October 30, 2018, 11:26:59 AM

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Kaiser Kirk

Quote from: maddox on May 27, 2020, 04:46:50 AM
Proof of the pudding is in eating it.

Somebody should sim out the fight between one of the sailing frigates and an escort of these sloops (same size the A class destroyers) protecting the convoy.

I don't seem to have much enthusiasm for extra sims.

Currently the Parthian Frigates have not had their fire control updated. It's 1905.
Looking at the 130mm, to my surprise it can probably start penetrating at about 7000m.

Which would give the sloop the advantage...if it had fire control.
Without fire control it's just not going to hit much at 3000-6000m, but the Parthian will.

Let's assume Vilnus decides to give it modern fire control, and in 1913 Parthia updates the Frigate's FC.
Ok...now the Frigate can hit from well beyond 7000m, and the 180mm guns can punch holes in the sloop's belt...and the sloop can't hit the vitals of the Frigate.

There is always a chance of a random crit in the 'soft' sections.
Currently the 3x 90mm of the Frigate have just as much chance of that as the 3x 130mm, but a higher ROF.
That's something I'd like to change a little, but currently how it is.

So... to win, the sloop needs a lot of luck, the frigate just needs not to have horrible luck.
Did they beat the drum slowly,
Did they play the fife lowly,
Did they sound the death march, as they lowered you down,
Did the band play the last post and chorus,
Did the pipes play the flowers of the forest

The Rock Doctor

And while we all fret about MTBs and convoy defence, the Union has picked up territory on big rivers and Daddy wants more river gunboats.

The muzzle-loading 75mm is a howitzer.  Protection against small arms fire.  Some space to stow a few passengers and cargo.

Enter ship name, Enter country Enter ship type laid down 1913

Displacement:
   127 t light; 132 t standard; 138 t normal; 142 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (118.98 ft / 114.83 ft) x 19.69 ft x (3.28 / 3.37 ft)
   (36.26 m / 35.00 m) x 6.00 m  x (1.00 / 1.03 m)

Armament:
      1 - 2.95" / 75.0 mm 45.0 cal gun - 12.98lbs / 5.89kg shells, 100 per gun
     Muzzle loading gun in deck mount, 1913 Model
     1 x Single mount on centreline, aft deck centre
      1 - 1.97" / 50.0 mm 45.0 cal gun - 3.85lbs / 1.74kg shells, 250 per gun
     Quick firing gun in deck mount, 1913 Model
     1 x Single mount on centreline, forward deck centre
      2 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1913 Model
     2 x Single mounts on sides, forward deck aft
      2 raised mounts
      Weight of broadside 17 lbs / 8 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   0.59" / 15 mm     74.64 ft / 22.75 m   6.56 ft / 2.00 m
   Ends:   0.39" / 10 mm     40.16 ft / 12.24 m   5.31 ft / 1.62 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.39" / 10 mm   0.39" / 10 mm            -
   2nd:   0.39" / 10 mm   0.39" / 10 mm            -
   3rd:   0.20" / 5 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 0.39" / 10 mm
   Forecastle: 0.00" / 0 mm  Quarter deck: 0.39" / 10 mm

   - Conning towers: Forward 0.39" / 10 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 134 ihp / 100 Kw = 10.00 kts
   Range 500nm at 10.00 kts
   Bunker at max displacement = 10 tons (100% coal)

Complement:
   19 - 26

Cost:
   £0.007 million / $0.029 million

Distribution of weights at normal displacement:
   Armament: 3 tons, 2.2 %
      - Guns: 3 tons, 2.2 %
   Armour: 33 tons, 24.1 %
      - Belts: 16 tons, 11.6 %
      - Armament: 5 tons, 3.9 %
      - Armour Deck: 12 tons, 8.4 %
      - Conning Tower: 0 tons, 0.2 %
   Machinery: 9 tons, 6.4 %
   Hull, fittings & equipment: 48 tons, 35.1 %
   Fuel, ammunition & stores: 10 tons, 7.5 %
   Miscellaneous weights: 34 tons, 24.7 %
      - On freeboard deck: 34 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     760 lbs / 345 Kg = 59.1 x 3.0 " / 75 mm shells or 1.4 torpedoes
   Stability (Unstable if below 1.00): 1.37
   Metacentric height 0.8 ft / 0.2 m
   Roll period: 9.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.07
   Seaboat quality  (Average = 1.00): 1.27

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.650 / 0.653
   Length to Beam Ratio: 5.83 : 1
   'Natural speed' for length: 10.72 kts
   Power going to wave formation at top speed: 42 %
   Trim (Max stability = 0, Max steadiness = 100): 55
   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:   20.00 %,  4.92 ft / 1.50 m,  4.92 ft / 1.50 m
      - Forward deck:   30.00 %,  4.92 ft / 1.50 m,  4.92 ft / 1.50 m
      - Aft deck:   35.00 %,  4.92 ft / 1.50 m,  4.92 ft / 1.50 m
      - Quarter deck:   15.00 %,  4.92 ft / 1.50 m,  4.92 ft / 1.50 m
      - Average freeboard:      4.92 ft / 1.50 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 29.3 %
      - Above water (accommodation/working, high = better): 85.4 %
   Waterplane Area: 1,732 Square feet or 161 Square metres
   Displacement factor (Displacement / loading): 147 %
   Structure weight / hull surface area: 23 lbs/sq ft or 111 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.47
      - Overall: 1.01
   Excellent machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily



The Rock Doctor

Also minesweepers, because your mines are bad.

Their range is high for transit purposes, but they're expected to be largely coastal critters and probably wouldn't have nearly as much coal aboard in normal operating circumstances.

Enter ship name, Enter country Enter ship type laid down 1913

Displacement:
   429 t light; 443 t standard; 526 t normal; 592 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (170.29 ft / 163.71 ft) x 31.17 ft x (6.56 / 7.21 ft)
   (51.91 m / 49.90 m) x 9.50 m  x (2.00 / 2.20 m)

Armament:
      1 - 3.94" / 100 mm 45.0 cal gun - 30.77lbs / 13.96kg shells, 150 per gun
     Breech loading gun in deck mount, 1913 Model
     1 x Single mount on centreline, forward deck centre
      1 raised mount
      1 - 1.97" / 50.0 mm 45.0 cal gun - 3.85lbs / 1.74kg shells, 250 per gun
     Quick firing gun in deck mount, 1913 Model
     1 x Single mount on centreline, aft deck forward
      1 raised mount
      2 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1913 Model
     2 x Single mounts on sides, forward deck aft
      2 raised mounts
      Weight of broadside 35 lbs / 16 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.79" / 20 mm   0.79" / 20 mm            -
   2nd:   0.39" / 10 mm   0.39" / 10 mm            -
   3rd:   0.20" / 5 mm         -               -

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 1,005 ihp / 750 Kw = 14.23 kts
   Range 4,000nm at 10.00 kts
   Bunker at max displacement = 149 tons (100% coal)

Complement:
   54 - 71

Cost:
   £0.028 million / $0.114 million

Distribution of weights at normal displacement:
   Armament: 6 tons, 1.1 %
      - Guns: 6 tons, 1.1 %
   Armour: 8 tons, 1.5 %
      - Armament: 8 tons, 1.5 %
   Machinery: 66 tons, 12.6 %
   Hull, fittings & equipment: 199 tons, 37.9 %
   Fuel, ammunition & stores: 97 tons, 18.4 %
   Miscellaneous weights: 150 tons, 28.5 %
      - On freeboard deck: 140 tons
      - Above deck: 10 tons

Fittings:
-100 t:  Minesweeping gear
-40 t:  Fitted for but not necessarily within 40 mines for laying

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     2,164 lbs / 982 Kg = 70.9 x 3.9 " / 100 mm shells or 1.4 torpedoes
   Stability (Unstable if below 1.00): 1.36
   Metacentric height 1.5 ft / 0.5 m
   Roll period: 10.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.07
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.550 / 0.563
   Length to Beam Ratio: 5.25 : 1
   'Natural speed' for length: 12.80 kts
   Power going to wave formation at top speed: 54 %
   Trim (Max stability = 0, Max steadiness = 100): 35
   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:   20.00 %,  18.70 ft / 5.70 m,  15.75 ft / 4.80 m
      - Forward deck:   30.00 %,  15.75 ft / 4.80 m,  15.75 ft / 4.80 m
      - Aft deck:   35.00 %,  7.87 ft / 2.40 m,  7.87 ft / 2.40 m
      - Quarter deck:   15.00 %,  7.87 ft / 2.40 m,  7.87 ft / 2.40 m
      - Average freeboard:      12.05 ft / 3.67 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 45.8 %
      - Above water (accommodation/working, high = better): 144.6 %
   Waterplane Area: 3,561 Square feet or 331 Square metres
   Displacement factor (Displacement / loading): 171 %
   Structure weight / hull surface area: 36 lbs/sq ft or 174 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.83
      - Longitudinal: 5.10
      - 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



The Rock Doctor

So this is where the Union's at for capital ship designs.

It's important to note that the government imposed a hard displacement cap on the navy:  27,000 t light.  None of this "40,000 t, builds for five years" nonsense that the navy was TOTALLY NOT THINKING ABOUT.  The government wants the lead unit, at least, laid down, launched and completed while the government is still in power to reap the political benefits of this.

The Navy then had to come to terms with the reality that the resulting ship would not be a world-beater, trend-setter, or otherwise match everybody else's capital ships.  On the other hand, a 27,000 t ship, being less expensive than a 40,000 t ship, is the kind of ship that might see more action, wider deployments, and a wide array of situations simply because it's more expendable.  The navy is also hoping it'll be able to afford a number of the type though that remains to be borne out by government decision-making.  At the moment, they have names for six but authorization for two.

It was then, that the ship should be reasonably fast.  25.84 kts is, for a modern battleship, reasonably fast.  Not quite BC fast, but certainly competitive with early BCs.  The seakeeping and freeboard are sufficient to allow another ~2 knots or so when the ships receive new turbines during midlife refits.

The class was also to be reasonably armored against its own battery and against torpedo/mine attacks, which is considered to be the case here.  This was more or less locked in before the Sino-Japanese conflict due to the Navy's awareness of submarines and the risk of such in confined operating areas such as the not-English Channel.  The end belt might seem like a anachronism but this is intended to protect against ice in the Baltic and North Atlantic and will reduce splinter-related flooding.

The armament is a bit of a compromise.  The main battery is the most powerful gun in the Union inventory and satisfactory for now.  The mountings are a weight-saving consideration, while the layout is both also a weight-saving factor as well as a preference for firepower while being chased over firepower while chasing.  The 10cm battery is a late, Sino-Japanese-inspired panic-addition and tapped the ship's calculated construction reserve; at the time of lay-down, the exact location of these deck mounts is likely still be sorted out.

Anders Angstrom, Ship of the Line, laid down 1913

Displacement:
   26,989 t light; 28,453 t standard; 30,005 t normal; 31,247 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (662.78 ft / 651.25 ft) x 95.14 ft x (28.25 / 29.21 ft)
   (202.02 m / 198.50 m) x 29.00 m  x (8.61 / 8.90 m)

Armament:
      9 - 13.78" / 350 mm 45.0 cal guns - 1,319.36lbs / 598.45kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1913 Model
     1 x Triple mount on centreline, forward deck forward
     2 x Triple mounts on centreline, aft evenly spread
      1 raised mount aft
      16 - 5.12" / 130 mm 45.0 cal guns - 67.62lbs / 30.67kg shells, 250 per gun
     Breech loading guns in casemate mounts, 1913 Model
     16 x Single mounts on sides, forward deck aft
      12 - 3.94" / 100 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 250 per gun
     Quick firing guns in deck mounts, 1913 Model
     12 x Single mounts on sides, evenly spread
      12 raised mounts
      4 - 1.97" / 50.0 mm 45.0 cal guns - 3.86lbs / 1.75kg shells, 150 per gun
     Anti-air guns in deck mounts, 1913 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      8 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1913 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
      Weight of broadside 13,341 lbs / 6,051 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13.8" / 350 mm   423.10 ft / 128.96 m   12.47 ft / 3.80 m
   Ends:   0.98" / 25 mm   227.79 ft / 69.43 m   12.47 ft / 3.80 m
     Main Belt covers 100 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      2.95" / 75 mm   423.10 ft / 128.96 m   26.64 ft / 8.12 m
   Beam between torpedo bulkheads 75.46 ft / 23.00 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   15.7" / 400 mm   9.84" / 250 mm      13.8" / 350 mm
   2nd:   0.98" / 25 mm   0.98" / 25 mm      3.94" / 100 mm
   3rd:   0.39" / 10 mm   0.39" / 10 mm            -
   4th:   0.39" / 10 mm   0.39" / 10 mm            -
   5th:   0.20" / 5 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 3.54" / 90 mm
   Forecastle: 2.95" / 75 mm  Quarter deck: 2.95" / 75 mm

   - Conning towers: Forward 13.78" / 350 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 75,068 shp / 56,000 Kw = 25.84 kts
   Range 10,000nm at 10.00 kts
   Bunker at max displacement = 2,794 tons

Complement:
   1,139 - 1,481

Cost:
   £2.765 million / $11.058 million

Distribution of weights at normal displacement:
   Armament: 2,261 tons, 7.5 %
      - Guns: 2,261 tons, 7.5 %
   Armour: 10,167 tons, 33.9 %
      - Belts: 3,249 tons, 10.8 %
      - Torpedo bulkhead: 1,231 tons, 4.1 %
      - Armament: 2,498 tons, 8.3 %
      - Armour Deck: 2,902 tons, 9.7 %
      - Conning Tower: 287 tons, 1.0 %
   Machinery: 2,942 tons, 9.8 %
   Hull, fittings & equipment: 10,794 tons, 36.0 %
   Fuel, ammunition & stores: 3,017 tons, 10.1 %
   Miscellaneous weights: 826 tons, 2.8 %
      - Hull above water: 276 tons
      - On freeboard deck: 400 tons
      - Above deck: 150 tons

Fittings:
-452 t:  1908 Fire Control (Redundant)
-200 t:  Flag facilities
-25 t:  Night-fighting doodads
-149 t:  Weight reserve

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     43,774 lbs / 19,856 Kg = 33.5 x 13.8 " / 350 mm shells or 7.4 torpedoes
   Stability (Unstable if below 1.00): 1.12
   Metacentric height 5.8 ft / 1.8 m
   Roll period: 16.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.76
   Seaboat quality  (Average = 1.00): 1.30

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.600 / 0.604
   Length to Beam Ratio: 6.84 : 1
   'Natural speed' for length: 25.52 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 54
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: 6.56 ft / 2.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  28.22 ft / 8.60 m,  24.28 ft / 7.40 m
      - Forward deck:   40.00 %,  24.28 ft / 7.40 m,  24.28 ft / 7.40 m
      - Aft deck:   25.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
      - Quarter deck:   15.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
      - Average freeboard:      21.44 ft / 6.54 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 87.3 %
      - Above water (accommodation/working, high = better): 161.0 %
   Waterplane Area: 45,318 Square feet or 4,210 Square metres
   Displacement factor (Displacement / loading): 107 %
   Structure weight / hull surface area: 184 lbs/sq ft or 899 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.59
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily





TacCovert4

Interesting design choice, putting your superfiring turret in the aft arc.  Primarily concerning yourself with fending off an assailant rather than being on the offensive?
His Most Honorable Majesty,  Ali the 8th, Sultan of All Aztecs,  Eagle of the Sun, Jaguar of the Sun, Snake of the Sun, Seal of the Sun, Whale of the Sun, Defender of the Faith, Keeper of the Teachings of Allah most gracious and merciful.

The Rock Doctor

The perception would be that being chased by somebody is a more dire situation than chasing somebody.

I suppose the ship might also find it useful to have a large number of guns aft if it is faster than its opponent and looking to cross in front of it or maintain/increase distance between them.

Desertfox

QuoteIt's important to note that the government imposed a hard displacement cap on the navy:  27,000 t light.  None of this "40,000 t, builds for five years" nonsense that the navy was TOTALLY NOT THINKING ABOUT.  The government wants the lead unit, at least, laid down, launched and completed while the government is still in power to reap the political benefits of this.
Hehe, the new Maya class BCs can be built in just two years.

At 26kts, this is basically a battlecruiser, the next fastest battleships are the Japanese Kawachis at 24kts and they were already fast. There might even be some 25kts battlecruisers running around.

QuoteThe 10cm battery is a late, Sino-Japanese-inspired panic-addition and tapped the ship's calculated construction reserve; at the time of lay-down, the exact location of these deck mounts is likely still be sorted out.
They must be reading Chinese news reports, according to the Japanese every torpedo attack was a complete failure.
"We don't run from the end of the world. We CHARGE!" Schlock

http://www.schlockmercenary.com/d/20090102.html

The Rock Doctor

Quote from: Desertfox on June 04, 2020, 11:24:53 AMThey must be reading Chinese news reports, according to the Japanese every torpedo attack was a complete failure.
Ok Fox News.

Desertfox

I was thinking more RT (Russia Today)...

To be fair, there where 7 torpedo attacks during the war, 4 were failures, 1 was against ships at anchor without screening ships, and the other 2 were against ships not in proper battle formation. Only the last attack was there any sort of screening force and it was quite light.
"We don't run from the end of the world. We CHARGE!" Schlock

http://www.schlockmercenary.com/d/20090102.html

The Rock Doctor

Quote from: Desertfox on June 04, 2020, 11:48:40 AM
I was thinking more RT (Russia Today)...

To be fair, there where 7 torpedo attacks during the war, 4 were failures, 1 was against ships at anchor without screening ships, and the other 2 were against ships not in proper battle formation. Only the last attack was there any sort of screening force and it was quite light.
Well sure, but the thought of Fox News and Chinese Naval News amused me.

Desertfox

"We don't run from the end of the world. We CHARGE!" Schlock

http://www.schlockmercenary.com/d/20090102.html

snip

I like it, solid design. Makes a few tradeoffs relative to the Audax class, which will be in service a little sooner being a year older, and I think a fight between them would be interesting. A good intermediary ship between 21knts and a higher speed for later ships.
You smug-faced crowds with kindling eye
Who cheer when solider lads march by
Sneak home and pray that you'll never know
The hell where youth and laughter go.
-Siegfried Sassoon

Kaiser Kirk

Quote from: Desertfox on June 04, 2020, 11:24:53 AM
They must be reading Chinese news reports, according to the Japanese every torpedo attack was a complete failure.

Since the Chinese were being run by the Mod as an NPC, they were not engaging in a lot of propaganda, and were trying to ensure the large foreign powers knew what was happening, and why. They also hoped this would buy them some support for the distant blockade, and avoid unwanted intervention. As a result, the Chinese version of the war reports were assumed to be made available.
Did they beat the drum slowly,
Did they play the fife lowly,
Did they sound the death march, as they lowered you down,
Did the band play the last post and chorus,
Did the pipes play the flowers of the forest

The Rock Doctor

Captain Hans Liedtke and his crew fought hard, but in the end - as reported in the 2H12 news - they were unable to prevent the loss of their ship and their lives in a gale in the Dragon's Tail (OTL Strait of Magellan).

Recognizing that its existing inventory of patrol craft were often incapable of patrol and search and rescue in the treacherous waters at the very southern tip of the Ericas, the Union Navy has proposed the construction of three so-called Armored Patrol Sloops to be based at Hiekka Niemeke (OTL Punta Arenas).  As the designation suggests, the class is extensively armored to protect against floating ice and collisions with other vessels, such as when coming alongside for inspections and rescues.  Even the underwater hull is protected against possible groundings in the relatively poorly charted waters.

Above water, the ship is kitted out with a towing rig, extra boats and cranes for rescue operations, and water cannons for fire-fighting.  Internally, the ship has additional medical facilities to treat casualties and an area of crowded, emergency bunking for survivors or other short-duration passengers.   A long-range wireless is fitted for communications purposes.

The ship is not heavily armed, and the main battery is mounted high on the centerline, to reduce wetness in bad seas and to avoid being destroyed in collisions and boarding operations.  That being said, the primary enemy of this type is the weather - not other ships.

Hans Liedtke, Armored Patrol Sloop laid down 1913

Displacement:
   1,588 t light; 1,633 t standard; 1,767 t normal; 1,875 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (237.10 ft / 229.66 ft) x 42.65 ft x (11.48 / 12.03 ft)
   (72.27 m / 70.00 m) x 13.00 m  x (3.50 / 3.67 m)

Armament:
      2 - 3.94" / 100 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 250 per gun
     Breech loading guns in deck mounts, 1913 Model
     2 x Single mounts on centreline, evenly spread
      2 raised mounts
      4 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1913 Model
     4 x Single mounts on sides, evenly spread
      Weight of broadside 62 lbs / 28 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   0.98" / 25 mm   182.09 ft / 55.50 m   15.75 ft / 4.80 m
   Ends:   0.98" / 25 mm     47.54 ft / 14.49 m   7.87 ft / 2.40 m
   Upper:   0.98" / 25 mm   114.83 ft / 35.00 m   7.87 ft / 2.40 m
     Main Belt covers 122 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      1.97" / 50 mm   149.28 ft / 45.50 m   10.83 ft / 3.30 m
   Beam between torpedo bulkheads 29.53 ft / 9.00 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.79" / 20 mm   0.79" / 20 mm            -
   3rd:   0.39" / 10 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 8,043 shp / 6,000 Kw = 20.47 kts
   Range 5,000nm at 10.00 kts
   Bunker at max displacement = 242 tons

Complement:
   136 - 177

Cost:
   £0.112 million / $0.448 million

Distribution of weights at normal displacement:
   Armament: 10 tons, 0.6 %
      - Guns: 10 tons, 0.6 %
   Armour: 312 tons, 17.6 %
      - Belts: 176 tons, 10.0 %
      - Torpedo bulkhead: 118 tons, 6.7 %
      - Armament: 18 tons, 1.0 %
   Machinery: 315 tons, 17.8 %
   Hull, fittings & equipment: 566 tons, 32.0 %
   Fuel, ammunition & stores: 179 tons, 10.2 %
   Miscellaneous weights: 386 tons, 21.8 %
      - Hull above water: 100 tons
      - On freeboard deck: 236 tons
      - Above deck: 50 tons

Fittings:
-150 t:  Towing rig
-50 t:  Extra boats, fire-fighting stuff
-100 t:  Extra short-term accommodation, enhanced sick bay
-50 t:  L/R Wireless (redundant)
-36 t:  Weight reserve

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,083 lbs / 1,852 Kg = 133.8 x 3.9 " / 100 mm shells or 1.5 torpedoes
   Stability (Unstable if below 1.00): 1.32
   Metacentric height 2.3 ft / 0.7 m
   Roll period: 11.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.03
   Seaboat quality  (Average = 1.00): 1.32

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.550 / 0.557
   Length to Beam Ratio: 5.38 : 1
   'Natural speed' for length: 15.15 kts
   Power going to wave formation at top speed: 66 %
   Trim (Max stability = 0, Max steadiness = 100): 45
   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:   20.00 %,  23.62 ft / 7.20 m,  19.69 ft / 6.00 m
      - Forward deck:   30.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Aft deck:   35.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Quarter deck:   15.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Average freeboard:      16.06 ft / 4.90 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 96.8 %
      - Above water (accommodation/working, high = better): 147.9 %
   Waterplane Area: 6,836 Square feet or 635 Square metres
   Displacement factor (Displacement / loading): 130 %
   Structure weight / hull surface area: 51 lbs/sq ft or 250 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.84
      - Longitudinal: 4.44
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Good seaboat, rides out heavy weather easily



The Rock Doctor

Trade defence options incoming.

1)  An Exeter clone/early CA.  Can chase around protected cruisers, evade modern capital ships.

2)  A slow armored cruiser.  Slower than modern cruisers, nuisance value for modern capital ships, but not something for typical raiders or protected cruisers to get in range of.  Armament dictated by available 25cm mount options.

3)  An armored ship.  Slower than modern cruisers, more expensive than the other options, but probably a headache for anything short of a modern capital ship.  The beam's a little wider than Graf Spee, I checked.