Ottomania runs wild...

[Guinness]

Lots of small coast defense ships please.

Yeah, I think we need to role play a bit for the era between 1890 or so and 1900.

[The Rock Doctor]

Lots of small coast defense ships please.

Should I arm them or leave them as "fitted for but not with"?

Yeah, I think we need to role play a bit for the era between 1890 or so and 1900.

Indeed.  I will have to reign myself in a bit.

[The Rock Doctor]

A generic river gunboat for service on the Danube/Sava, Euphrates/Tigris, and Nile river systems.  It's primarily intended to keep locals in line, so the armament is not super crazy.  The armor protection is basically intended to keep bullets out of the important bits.

Seakeeping is not great, but ought to be just fine for rivers. 

The main gun is a howitzer, to facilitate shelling forts or elevated positions as might be found on river banks.

The miscellaneous weight was originally for deck cargo or a small detachment of troops.


Enter ship name, Enter country Enter ship type laid down 1890

Displacement:
   250 t light; 260 t standard; 278 t normal; 293 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (191.60 ft / 188.32 ft) x 26.25 ft x (3.28 / 3.42 ft)
   (58.40 m / 57.40 m) x 8.00 m  x (1.00 / 1.04 m)

Armament:
      1 - 4.13" / 105 mm 15.0 cal gun - 31.29lbs / 14.19kg shells, 100 per gun
     Breech loading gun in deck mount, 1890 Model
     1 x Single mount on centreline, aft deck centre
      2 - 1.97" / 50.0 mm 40.0 cal guns - 3.66lbs / 1.66kg shells, 400 per gun
     Quick firing guns in deck mounts, 1890 Model
     2 x Single mounts on centreline, evenly spread
      4 - 0.31" / 8.0 mm 45.0 cal guns - 0.02lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1890 Model
     4 x Single mounts on sides, aft deck forward
      Weight of broadside 39 lbs / 18 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   0.59" / 15 mm   126.31 ft / 38.50 m   6.14 ft / 1.87 m
   Ends:   Unarmoured
     Main Belt covers 103 % of normal length

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

   - Box over machinery & magazines:
   0.39" / 10 mm

   - Conning towers: Forward 0.59" / 15 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 135 ihp / 101 Kw = 8.93 kts
   Range 1,300nm at 8.00 kts
   Bunker at max displacement = 33 tons (100% coal)

Complement:
   33 - 44

Cost:
   £0.013 million / $0.053 million

Distribution of weights at normal displacement:
   Armament: 3 tons, 1.1 %
      - Guns: 3 tons, 1.1 %
   Armour: 37 tons, 13.4 %
      - Belts: 20 tons, 7.0 %
      - Armament: 3 tons, 1.0 %
      - Armour Deck: 14 tons, 5.2 %
      - Conning Tower: 1 tons, 0.2 %
   Machinery: 25 tons, 9.0 %
   Hull, fittings & equipment: 150 tons, 53.8 %
   Fuel, ammunition & stores: 28 tons, 10.0 %
   Miscellaneous weights: 35 tons, 12.6 %
      - On freeboard deck: 35 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,295 lbs / 587 Kg = 36.7 x 4.1 " / 105 mm shells or 1.6 torpedoes
   Stability (Unstable if below 1.00): 1.24
   Metacentric height 1.0 ft / 0.3 m
   Roll period: 11.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.05
   Seaboat quality  (Average = 1.00): 0.91

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.600 / 0.605
   Length to Beam Ratio: 7.18 : 1
   'Natural speed' for length: 13.72 kts
   Power going to wave formation at top speed: 21 %
   Trim (Max stability = 0, Max steadiness = 100): 77
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   15.00 %,  8.20 ft / 2.50 m,  8.20 ft / 2.50 m
      - Forward deck:   20.00 %,  5.25 ft / 1.60 m,  5.25 ft / 1.60 m
      - Aft deck:   50.00 %,  5.25 ft / 1.60 m,  5.25 ft / 1.60 m
      - Quarter deck:   15.00 %,  5.25 ft / 1.60 m,  5.25 ft / 1.60 m
      - Average freeboard:      5.69 ft / 1.74 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 35.0 %
      - Above water (accommodation/working, high = better): 109.5 %
   Waterplane Area: 3,615 Square feet or 336 Square metres
   Displacement factor (Displacement / loading): 212 %
   Structure weight / hull surface area: 35 lbs/sq ft or 170 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1.17
      - Longitudinal: 0.94
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

[The Rock Doctor]

These larger riverboat are unarmored, but their primary role is to move cargo or troops along a watershed. 

Enter ship name, Enter country Enter ship type laid down 1898

Displacement:
   506 t light; 519 t standard; 539 t normal; 556 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (216.54 ft / 213.25 ft) x 36.09 ft x (3.77 / 3.87 ft)
   (66.00 m / 65.00 m) x 11.00 m  x (1.15 / 1.18 m)

Armament:
      2 - 1.97" / 50.0 mm 40.0 cal guns - 3.66lbs / 1.66kg shells, 400 per gun
     Quick firing guns in deck mounts, 1898 Model
     2 x Single mounts on centreline, evenly spread
      4 - 0.31" / 8.0 mm 45.0 cal guns - 0.02lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1898 Model
     4 x Single mounts on sides, aft deck forward
      Weight of broadside 7 lbs / 3 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   2nd:   0.39" / 10 mm         -               -

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 161 ihp / 120 Kw = 8.20 kts
   Range 1,000nm at 8.00 kts
   Bunker at max displacement = 37 tons (100% coal)

Complement:
   55 - 72

Cost:
   £0.022 million / $0.087 million

Distribution of weights at normal displacement:
   Armament: 2 tons, 0.3 %
      - Guns: 2 tons, 0.3 %
   Armour: 2 tons, 0.3 %
      - Armament: 2 tons, 0.3 %
   Machinery: 26 tons, 4.8 %
   Hull, fittings & equipment: 276 tons, 51.3 %
   Fuel, ammunition & stores: 33 tons, 6.2 %
   Miscellaneous weights: 200 tons, 37.1 %
      - On freeboard deck: 200 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     7,773 lbs / 3,526 Kg = 220.1 x 6 " / 152 mm shells or 5.3 torpedoes
   Stability (Unstable if below 1.00): 1.31
   Metacentric height 1.8 ft / 0.5 m
   Roll period: 11.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.01
   Seaboat quality  (Average = 1.00): 1.12

Hull form characteristics:
   Hull has low forecastle, low quarterdeck ,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.650 / 0.653
   Length to Beam Ratio: 5.91 : 1
   'Natural speed' for length: 14.60 kts
   Power going to wave formation at top speed: 17 %
   Trim (Max stability = 0, Max steadiness = 100): 63
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   15.00 %,  5.91 ft / 1.80 m,  3.94 ft / 1.20 m
      - Forward deck:   20.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Aft deck:   35.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Quarter deck:   30.00 %,  3.94 ft / 1.20 m,  3.94 ft / 1.20 m
      - Average freeboard:      8.39 ft / 2.56 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 18.6 %
      - Above water (accommodation/working, high = better): 241.2 %
   Waterplane Area: 5,896 Square feet or 548 Square metres
   Displacement factor (Displacement / loading): 209 %
   Structure weight / hull surface area: 39 lbs/sq ft or 192 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.39
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

[Guinness]

On the small riverboat, I'd mount a smaller gun. I think rate of fire would matter more, and with something like a 75mm you can carry a lot more ammunition. It'd still be plenty to scare the locals.

[The Rock Doctor]

The generic Ottoman patrol boat, used for harbour inspections, local security near ports, and such.  No provision for cargo or passengers - a portion of the crew would serve as a boarding party where required.

Enter ship name, Enter country Enter ship type laid down 1893 (Engine 1890)

Displacement:
   47 t light; 49 t standard; 50 t normal; 52 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (85.30 ft / 82.02 ft) x 16.40 ft x (2.62 / 2.68 ft)
   (26.00 m / 25.00 m) x 5.00 m  x (0.80 / 0.82 m)

Armament:
      1 - 1.97" / 50.0 mm 40.0 cal gun - 3.66lbs / 1.66kg shells, 400 per gun
     Quick firing gun in deck mount, 1893 Model
     1 x Single mount on centreline, forward deck centre
      3 - 0.31" / 8.0 mm 45.0 cal guns - 0.02lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1893 Model
     2 x Single mounts on sides, aft deck forward
     1 x Single mount on centreline, aft deck centre
      Weight of broadside 4 lbs / 2 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   2nd:   0.39" / 10 mm         -               -

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 111 ihp / 83 Kw = 11.00 kts
   Range 300nm at 8.00 kts
   Bunker at max displacement = 3 tons (100% coal)

Complement:
   9 - 12

Cost:
   £0.005 million / $0.019 million

Distribution of weights at normal displacement:
   Armament: 1 tons, 1.6 %
      - Guns: 1 tons, 1.6 %
   Armour: 1 tons, 1.8 %
      - Armament: 1 tons, 1.8 %
   Machinery: 21 tons, 42.6 %
   Hull, fittings & equipment: 23 tons, 46.5 %
   Fuel, ammunition & stores: 4 tons, 7.6 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     58 lbs / 26 Kg = 1.7 x 6 " / 152 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.72
   Metacentric height 0.8 ft / 0.2 m
   Roll period: 7.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.02
   Seaboat quality  (Average = 1.00): 1.28

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.500 / 0.503
   Length to Beam Ratio: 5.00 : 1
   'Natural speed' for length: 9.06 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 47
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   15.00 %,  5.25 ft / 1.60 m,  5.25 ft / 1.60 m
      - Forward deck:   20.00 %,  5.25 ft / 1.60 m,  5.25 ft / 1.60 m
      - Aft deck:   35.00 %,  5.25 ft / 1.60 m,  5.25 ft / 1.60 m
      - Quarter deck:   30.00 %,  5.25 ft / 1.60 m,  5.25 ft / 1.60 m
      - Average freeboard:      5.25 ft / 1.60 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 144.0 %
      - Above water (accommodation/working, high = better): 99.6 %
   Waterplane Area: 896 Square feet or 83 Square metres
   Displacement factor (Displacement / loading): 110 %
   Structure weight / hull surface area: 19 lbs/sq ft or 94 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.89
      - Longitudinal: 3.38
      - Overall: 1.01
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Good seaboat, rides out heavy weather easily

[The Rock Doctor]

On the small riverboat, I'd mount a smaller gun. I think rate of fire would matter more, and with something like a 75mm you can carry a lot more ammunition. It'd still be plenty to scare the locals.

True - switching to a 77mm does seem to have benefits...

Enter ship name, Enter country Enter ship type laid down 1890

Displacement:
   250 t light; 260 t standard; 278 t normal; 293 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (191.60 ft / 188.32 ft) x 26.25 ft x (3.28 / 3.42 ft)
   (58.40 m / 57.40 m) x 8.00 m  x (1.00 / 1.04 m)

Armament:
      1 - 3.03" / 77.0 mm 15.0 cal gun - 12.34lbs / 5.60kg shells, 250 per gun
     Breech loading gun in deck mount, 1890 Model
     1 x Single mount on centreline, aft deck centre
      2 - 1.97" / 50.0 mm 40.0 cal guns - 3.66lbs / 1.66kg shells, 400 per gun
     Quick firing guns in deck mounts, 1890 Model
     2 x Single mounts on centreline, evenly spread
      4 - 0.31" / 8.0 mm 45.0 cal guns - 0.02lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1890 Model
     4 x Single mounts on sides, aft deck forward
      Weight of broadside 20 lbs / 9 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   0.59" / 15 mm   126.31 ft / 38.50 m   6.14 ft / 1.87 m
   Ends:   Unarmoured
     Main Belt covers 103 % of normal length

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

   - Box over machinery & magazines:
   0.39" / 10 mm

   - Conning towers: Forward 0.59" / 15 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 134 ihp / 100 Kw = 8.90 kts
   Range 1,300nm at 8.00 kts
   Bunker at max displacement = 33 tons (100% coal)

Complement:
   33 - 44

Cost:
   £0.013 million / $0.052 million

Distribution of weights at normal displacement:
   Armament: 2 tons, 0.8 %
      - Guns: 2 tons, 0.8 %
   Armour: 26 tons, 9.5 %
      - Belts: 19 tons, 7.0 %
      - Armament: 3 tons, 0.9 %
      - Armour Deck: 4 tons, 1.3 %
      - Conning Tower: 1 tons, 0.2 %
   Machinery: 26 tons, 9.3 %
   Hull, fittings & equipment: 149 tons, 53.8 %
   Fuel, ammunition & stores: 28 tons, 10.1 %
   Miscellaneous weights: 46 tons, 16.5 %
      - On freeboard deck: 46 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,279 lbs / 580 Kg = 91.8 x 3.0 " / 77 mm shells or 1.6 torpedoes
   Stability (Unstable if below 1.00): 1.21
   Metacentric height 1.0 ft / 0.3 m
   Roll period: 11.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.03
   Seaboat quality  (Average = 1.00): 0.91

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.600 / 0.605
   Length to Beam Ratio: 7.18 : 1
   'Natural speed' for length: 13.72 kts
   Power going to wave formation at top speed: 21 %
   Trim (Max stability = 0, Max steadiness = 100): 77
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   15.00 %,  8.20 ft / 2.50 m,  8.20 ft / 2.50 m
      - Forward deck:   20.00 %,  5.25 ft / 1.60 m,  5.25 ft / 1.60 m
      - Aft deck:   50.00 %,  5.25 ft / 1.60 m,  5.25 ft / 1.60 m
      - Quarter deck:   15.00 %,  5.25 ft / 1.60 m,  5.25 ft / 1.60 m
      - Average freeboard:      5.69 ft / 1.74 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 35.3 %
      - Above water (accommodation/working, high = better): 109.5 %
   Waterplane Area: 3,615 Square feet or 336 Square metres
   Displacement factor (Displacement / loading): 214 %
   Structure weight / hull surface area: 35 lbs/sq ft or 169 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1.20
      - Longitudinal: 0.94
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

[The Rock Doctor]

It occurred to me that I'm trying to pack too much into the 1898-99 period for the new engine year, so I will be tinkering with smaller stuff designs once I figure out sequencing for everything.

[The Rock Doctor]

Okay, I'm sorted out.  Major changes to my previous OrBat will be:

-Two of the three newest battleships are still under construction as the sim begins.

-I am counting a blown-up PD in my BP totals.

-There are only 2 (no longer 3) ACs from the mid '90s.

-But I'm adding 2 smaller ~5,000 t AC from the early '90s.

-My larger class of CLs will be remodelled with the 1890 engine tech.

-Half of the new, big TB will be remodelled with the 1890 engine tech.

[The Rock Doctor]

Let's revisit armored cruisers.

The older pair are, indeed, older.  I was eyeballng the historial Austrian Kaiserin und Konigin Maria Theresia class as I built this.  The outcome was less sucky than I expected.

Enter ship name, Enter country Enter ship type laid down 1888 (Engine 1890)

Displacement:
   5,292 t light; 5,541 t standard; 6,034 t normal; 6,428 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (383.86 ft / 377.30 ft) x 52.49 ft x (21.33 / 22.37 ft)
   (117.00 m / 115.00 m) x 16.00 m  x (6.50 / 6.82 m)

Armament:
      2 - 9.45" / 240 mm 35.0 cal guns - 396.83lbs / 180.00kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1888 Model
     2 x Twin mounts on centreline, evenly spread
      8 - 5.91" / 150 mm 35.0 cal guns - 88.18lbs / 40.00kg shells, 200 per gun
     Breech loading guns in casemate mounts, 1888 Model
     8 x Twin mounts on sides, evenly spread
      8 - 1.97" / 50.0 mm 35.0 cal guns - 3.52lbs / 1.60kg shells, 300 per gun
     Quick firing guns in deck mounts, 1888 Model
     8 x Single mounts on sides, forward deck aft
      4 raised mounts - superfiring
      4 - 0.31" / 8.0 mm 30.0 cal guns - 0.01lbs / 0.00kg shells, 15,000 per gun
     Machine guns in deck mounts, 1888 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 1,527 lbs / 693 kg
      Main Torpedoes
      2 - 17.7" / 450 mm, 16.40 ft / 5.00 m torpedoes - 0.384 t each, 0.769 t total
   In 2 sets of deck mounted side rotating tubes
      2nd Torpedoes
      2 - 17.7" / 450 mm, 16.40 ft / 5.00 m torpedoes - 0.384 t each, 0.769 t total
   submerged bow tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.94" / 100 mm   300.20 ft / 91.50 m   8.69 ft / 2.65 m
   Ends:   Unarmoured
     Main Belt covers 122 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   3.94" / 100 mm   3.94" / 100 mm      3.94" / 100 mm
   2nd:   0.98" / 25 mm         -         1.97" / 50 mm
   3rd:   0.39" / 10 mm         -               -

   - Protected deck - single deck:
   For and Aft decks: 2.36" / 60 mm
   Forecastle: 1.18" / 30 mm  Quarter deck: 1.18" / 30 mm

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

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 3 shafts, 10,054 ihp / 7,500 Kw = 19.19 kts
   Range 4,000nm at 10.00 kts
   Bunker at max displacement = 888 tons (100% coal)

Complement:
   341 - 444

Cost:
   £0.544 million / $2.178 million

Distribution of weights at normal displacement:
   Armament: 217 tons, 3.6 %
      - Guns: 214 tons, 3.6 %
      - Weapons: 3 tons, 0.1 %
   Armour: 1,117 tons, 18.5 %
      - Belts: 419 tons, 6.9 %
      - Armament: 166 tons, 2.7 %
      - Armour Deck: 504 tons, 8.4 %
      - Conning Towers: 28 tons, 0.5 %
   Machinery: 1,952 tons, 32.4 %
   Hull, fittings & equipment: 1,901 tons, 31.5 %
   Fuel, ammunition & stores: 741 tons, 12.3 %
   Miscellaneous weights: 105 tons, 1.7 %
      - Hull above water: 105 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,222 lbs / 1,915 Kg = 10.3 x 9.4 " / 240 mm shells or 3.0 torpedoes
   Stability (Unstable if below 1.00): 1.40
   Metacentric height 3.4 ft / 1.0 m
   Roll period: 11.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 90 %
         - Recoil effect (Restricted arc if above 1.00): 0.41
   Seaboat quality  (Average = 1.00): 1.73

Hull form characteristics:
   Hull has a flush deck,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.500 / 0.508
   Length to Beam Ratio: 7.19 : 1
   'Natural speed' for length: 19.42 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 52
   Bow angle (Positive = bow angles forward): -15.00 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 %,  16.40 ft / 5.00 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:   25.00 %,  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:      13.52 ft / 4.12 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 121.8 %
      - Above water (accommodation/working, high = better): 95.1 %
   Waterplane Area: 13,196 Square feet or 1,226 Square metres
   Displacement factor (Displacement / loading): 101 %
   Structure weight / hull surface area: 96 lbs/sq ft or 469 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.92
      - Longitudinal: 1.97
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Adequate 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]

The newer AC class suffers from the older machinery, but has some general similarities to the historical German designs of the period.


Enter ship name, Enter country Enter ship type laid down 1895 (Engine 1890)

Displacement:
   8,259 t light; 8,577 t standard; 9,304 t normal; 9,886 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (387.14 ft / 387.14 ft) x 65.94 ft x (23.62 / 24.78 ft)
   (118.00 m / 118.00 m) x 20.10 m  x (7.20 / 7.55 m)

Armament:
      4 - 8.27" / 210 mm 40.0 cal guns - 238.10lbs / 108.00kg shells, 85 per gun
     Breech loading guns in turret on barbette mounts, 1895 Model
     2 x Twin mounts on centreline, evenly spread
      4 - 5.91" / 150 mm 40.0 cal guns - 88.18lbs / 40.00kg shells, 150 per gun
     Breech loading guns in turret on barbette mounts, 1895 Model
     4 x Single mounts on sides, forward deck aft
      6 - 5.91" / 150 mm 40.0 cal guns - 88.18lbs / 40.00kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1895 Model
     6 x Single mounts on sides, forward deck aft
      6 hull mounts in casemates- Limited use in heavy seas
      10 - 3.46" / 88.0 mm 40.0 cal guns - 15.43lbs / 7.00kg shells, 150 per gun
     Quick firing guns in deck mounts, 1895 Model
     10 x Single mounts on sides, evenly spread
      4 - 0.31" / 8.0 mm 45.0 cal guns - 0.02lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1895 Model
     4 x Single mounts on sides, evenly spread
      Weight of broadside 1,989 lbs / 902 kg
      Main Torpedoes
      2 - 17.7" / 450 mm, 16.40 ft / 5.00 m torpedoes - 0.487 t each, 0.973 t total
   submerged side tubes
      2nd Torpedoes
      2 - 17.7" / 450 mm, 16.40 ft / 5.00 m torpedoes - 0.487 t each, 0.973 t total
   submerged bow & stern tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.94" / 100 mm   318.24 ft / 97.00 m   9.71 ft / 2.96 m
   Ends:   1.97" / 50 mm     68.86 ft / 20.99 m   9.71 ft / 2.96 m
   Upper:   3.94" / 100 mm   131.23 ft / 40.00 m   16.01 ft / 4.88 m
     Main Belt covers 126 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.91" / 150 mm   1.97" / 50 mm      3.94" / 100 mm
   2nd:   3.94" / 100 mm   1.18" / 30 mm      3.94" / 100 mm
   3rd:   2.76" / 70 mm         -               -
   4th:   0.79" / 20 mm         -               -

   - Protected deck - single deck:
   For and Aft decks: 1.97" / 50 mm
   Forecastle: 0.98" / 25 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 5.91" / 150 mm, Aft 1.18" / 30 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 16,086 ihp / 12,000 Kw = 20.09 kts
   Range 4,600nm at 10.00 kts
   Bunker at max displacement = 1,309 tons (100% coal)

Complement:
   473 - 615

Cost:
   £0.883 million / $3.534 million

Distribution of weights at normal displacement:
   Armament: 431 tons, 4.6 %
      - Guns: 427 tons, 4.6 %
      - Weapons: 4 tons, 0.0 %
   Armour: 2,003 tons, 21.5 %
      - Belts: 995 tons, 10.7 %
      - Armament: 352 tons, 3.8 %
      - Armour Deck: 588 tons, 6.3 %
      - Conning Towers: 68 tons, 0.7 %
   Machinery: 3,123 tons, 33.6 %
   Hull, fittings & equipment: 2,612 tons, 28.1 %
   Fuel, ammunition & stores: 1,045 tons, 11.2 %
   Miscellaneous weights: 90 tons, 1.0 %
      - On freeboard deck: 90 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     7,036 lbs / 3,192 Kg = 24.9 x 8.3 " / 210 mm shells or 3.0 torpedoes
   Stability (Unstable if below 1.00): 1.47
   Metacentric height 5.2 ft / 1.6 m
   Roll period: 12.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 80 %
         - Recoil effect (Restricted arc if above 1.00): 0.28
   Seaboat quality  (Average = 1.00): 1.73

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.540 / 0.547
   Length to Beam Ratio: 5.87 : 1
   'Natural speed' for length: 19.68 kts
   Power going to wave formation at top speed: 52 %
   Trim (Max stability = 0, Max steadiness = 100): 46
   Bow angle (Positive = bow angles forward): 0.00 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 %,  21.00 ft / 6.40 m,  21.00 ft / 6.40 m
      - Forward deck:   40.00 %,  21.00 ft / 6.40 m,  21.00 ft / 6.40 m
      - Aft deck:   25.00 %,  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:      17.85 ft / 5.44 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 125.5 %
      - Above water (accommodation/working, high = better): 127.7 %
   Waterplane Area: 17,651 Square feet or 1,640 Square metres
   Displacement factor (Displacement / loading): 95 %
   Structure weight / hull surface area: 105 lbs/sq ft or 513 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.90
      - Longitudinal: 2.53
      - Overall: 1.00
   Cramped 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]

The Sultan's royal yacht, which is rigged for sailing whenever the Sultan isn't in the mood for coal smoke.

The remaining miscellaneous weight above water and on deck would be assigned to accommodation/recreation/working space for the Sultan's immediate retinue, while the below-water cargo would be stuff like the sultan's baggage train and maybe his private motorcade or something.

The four guns are saluting mounts rather than combat pieces.

Enter ship name, Enter country Enter ship type laid down 1885

Displacement:
   1,914 t light; 1,961 t standard; 2,278 t normal; 2,532 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (296.12 ft / 282.15 ft) x 49.21 ft x (11.48 / 12.44 ft)
   (90.26 m / 86.00 m) x 15.00 m  x (3.50 / 3.79 m)

Armament:
      4 - 1.97" / 50.0 mm 40.0 cal guns - 3.52lbs / 1.59kg shells, 100 per gun
     Quick firing guns in deck mounts, 1885 Model
     4 x Single mounts on sides, forward deck aft
      Weight of broadside 14 lbs / 6 kg

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 1,526 ihp / 1,138 Kw = 13.00 kts
   Range 4,000nm at 10.00 kts
   Bunker at max displacement = 571 tons (100% coal)

Complement:
   164 - 214

Cost:
   £0.109 million / $0.437 million

Distribution of weights at normal displacement:
   Armament: 3 tons, 0.1 %
      - Guns: 3 tons, 0.1 %
   Machinery: 297 tons, 13.0 %
   Hull, fittings & equipment: 902 tons, 39.6 %
   Fuel, ammunition & stores: 364 tons, 16.0 %
   Miscellaneous weights: 713 tons, 31.3 %
      - Hull below water: 100 tons
      - Hull above water: 300 tons
      - On freeboard deck: 199 tons
      - Above deck: 114 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5,486 lbs / 2,489 Kg = 1,555.1 x 2.0 " / 50 mm shells or 1.7 torpedoes
   Stability (Unstable if below 1.00): 1.27
   Metacentric height 2.7 ft / 0.8 m
   Roll period: 12.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.01
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a round stern
   Block coefficient (normal/deep): 0.500 / 0.513
   Length to Beam Ratio: 5.73 : 1
   'Natural speed' for length: 16.80 kts
   Power going to wave formation at top speed: 34 %
   Trim (Max stability = 0, Max steadiness = 100): 52
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 6.56 ft / 2.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   15.00 %,  20.34 ft / 6.20 m,  16.40 ft / 5.00 m
      - Forward deck:   20.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
      - Aft deck:   50.00 %,  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:      16.64 ft / 5.07 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 62.6 %
      - Above water (accommodation/working, high = better): 176.3 %
   Waterplane Area: 9,252 Square feet or 859 Square metres
   Displacement factor (Displacement / loading): 174 %
   Structure weight / hull surface area: 65 lbs/sq ft or 317 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.88
      - Longitudinal: 2.90
      - 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]

The generic Ottoman tugboat.  Minimal defensive armament in case patrol work is required, and high hull strength for bumping into battleships.  The miscellaneous weight is for towing kit.

Enter ship name, Enter country Enter ship type laid down 1885 (Engine 1890)

Displacement:
   363 t light; 371 t standard; 426 t normal; 470 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (144.36 ft / 144.36 ft) x 26.25 ft x (6.56 / 7.11 ft)
   (44.00 m / 44.00 m) x 8.00 m  x (2.00 / 2.17 m)

Armament:
      1 - 1.97" / 50.0 mm 40.0 cal gun - 3.52lbs / 1.59kg shells, 100 per gun
     Quick firing gun in deck mount, 1885 Model
     1 x Single mount on centreline, aft deck centre
      2 - 0.31" / 8.0 mm 40.0 cal guns - 0.01lbs / 0.01kg shells, 5,000 per gun
     Quick firing guns in deck mounts, 1885 Model
     2 x Single mounts on sides, forward deck aft
      Weight of broadside 4 lbs / 2 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.39" / 10 mm         -               -

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 338 ihp / 252 Kw = 11.00 kts
   Range 2,000nm at 10.00 kts
   Bunker at max displacement = 99 tons (100% coal)

Complement:
   46 - 60

Cost:
   £0.022 million / $0.088 million

Distribution of weights at normal displacement:
   Armament: 1 tons, 0.2 %
      - Guns: 1 tons, 0.2 %
   Armour: 1 tons, 0.2 %
      - Armament: 1 tons, 0.2 %
   Machinery: 66 tons, 15.4 %
   Hull, fittings & equipment: 245 tons, 57.6 %
   Fuel, ammunition & stores: 64 tons, 14.9 %
   Miscellaneous weights: 50 tons, 11.7 %
      - Hull above water: 50 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,039 lbs / 471 Kg = 294.6 x 2.0 " / 50 mm shells or 0.8 torpedoes
   Stability (Unstable if below 1.00): 1.35
   Metacentric height 1.1 ft / 0.3 m
   Roll period: 10.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.01
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a round stern
   Block coefficient (normal/deep): 0.600 / 0.610
   Length to Beam Ratio: 5.50 : 1
   'Natural speed' for length: 12.01 kts
   Power going to wave formation at top speed: 45 %
   Trim (Max stability = 0, Max steadiness = 100): 35
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   15.00 %,  17.06 ft / 5.20 m,  13.12 ft / 4.00 m
      - Forward deck:   20.00 %,  13.12 ft / 4.00 m,  9.84 ft / 3.00 m
      - Aft deck:   50.00 %,  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:      10.90 ft / 3.32 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 64.3 %
      - Above water (accommodation/working, high = better): 118.3 %
   Waterplane Area: 2,771 Square feet or 257 Square metres
   Displacement factor (Displacement / loading): 231 %
   Structure weight / hull surface area: 52 lbs/sq ft or 254 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1.25
      - Longitudinal: 8.10
      - Overall: 1.50
   Excellent machinery, storage, compartmentation space
   Adequate 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

[Guinness]

The tug seems big, at least for harbor use.

For instance: http://www.steelnavy.com/Tug%20Brooklyn.htm

[The Rock Doctor]

Hmm.  Maybe I'll leave that design as an oceanic-ish design and add a smaller class for harbour work.