Austro-Hungarian ships

[KWorld]

Possible ships of the Austro-Hungarian Navy.

[KWorld]

The Austro-Hungarian flagship at Lissa, with 4 110 pound Armstrong deck guns added since the battle.

Erherzog Ferdinand Max, Austria-Hungary Armored frigate laid down 1870

Displacement:
   2,865 t light; 3,016 t standard; 3,235 t normal; 3,411 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (251.97 ft / 237.20 ft) x 41.99 ft x (20.67 / 21.58 ft)
   (76.80 m / 72.30 m) x 12.80 m  x (6.30 / 6.58 m)

Armament:
      16 - 7.00" / 178 mm 12.0 cal guns - 56.00lbs / 25.40kg shells, 100 per gun
     Muzzle loading guns in broadside mounts, 1870 Model
     16 x Single mounts on sides, evenly spread
      16 hull mounts on upper deck- Limited use in all but light seas
      4 - 7.00" / 178 mm 14.0 cal guns - 110.00lbs / 49.90kg shells, 150 per gun
     Breech loading guns in deck mounts, 1870 Model
     4 x Single mounts on side ends, evenly spread
      Weight of broadside 1,336 lbs / 606 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   4.84" / 123 mm   154.20 ft / 47.00 m   9.84 ft / 3.00 m
   Ends:   4.84" / 123 mm     50.52 ft / 15.40 m   14.76 ft / 4.50 m
     32.48 ft / 9.90 m Unarmoured ends
   Upper:   4.84" / 123 mm   154.20 ft / 47.00 m   9.84 ft / 3.00 m
     Main Belt covers 100 % of normal length

   - Armoured deck - single deck:
   For and Aft decks: 1.18" / 30 mm
   Forecastle: 1.18" / 30 mm  Quarter deck: 1.18" / 30 mm

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

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 1 shaft, 1,914 ihp / 1,428 Kw = 12.50 kts
   Range 2,500nm at 7.50 kts
   Bunker at max displacement = 395 tons (100% coal)

Complement:
   213 - 278

Cost:
   £0.199 million / $0.795 million

Distribution of weights at normal displacement:
   Armament: 92 tons, 2.9 %
      - Guns: 92 tons, 2.9 %
   Armour: 959 tons, 29.7 %
      - Belts: 783 tons, 24.2 %
      - Armour Deck: 149 tons, 4.6 %
      - Conning Tower: 28 tons, 0.9 %
   Machinery: 469 tons, 14.5 %
   Hull, fittings & equipment: 1,021 tons, 31.6 %
   Fuel, ammunition & stores: 371 tons, 11.5 %
   Miscellaneous weights: 323 tons, 10.0 %
      - Above deck: 323 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,660 lbs / 1,660 Kg = 30.5 x 7.0 " / 178 mm shells or 1.5 torpedoes
   Stability (Unstable if below 1.00): 1.15
   Metacentric height 1.8 ft / 0.5 m
   Roll period: 13.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.29
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has a flush deck,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.550 / 0.555
   Length to Beam Ratio: 5.65 : 1
   'Natural speed' for length: 15.40 kts
   Power going to wave formation at top speed: 40 %
   Trim (Max stability = 0, Max steadiness = 100): 35
   Bow angle (Positive = bow angles forward): -5.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  14.76 ft / 4.50 m,  13.12 ft / 4.00 m
      - Forward deck:   30.00 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
      - Aft deck:   35.00 %,  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:      13.25 ft / 4.04 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 59.4 %
      - Above water (accommodation/working, high = better): 79.1 %
   Waterplane Area: 6,742 Square feet or 626 Square metres
   Displacement factor (Displacement / loading): 128 %
   Structure weight / hull surface area: 90 lbs/sq ft or 438 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.89
      - Longitudinal: 3.62
      - Overall: 1.03
   Excellent machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Warning: Shell weight too lightMain Battery

Above-decks miscellaneous weight is sails and rigging sufficient to drive the ship at 12.5 knots (10%).

Broadside guns are smoothbore shell guns, deck guns are Armstrong 110-pounder rifled breech loaders.

End armor is only on the bow of the ship, stern is unarmored.

[Jefgte]

Not a bad ship.


SS historical ship is interresting but SS a better ship is more interresting.
More knots, 14kts for example could be better.
Add a ram bow could be useful too...

Jef

[KWorld]

A 4.5m ram is already fitted (needed to perform as historical at Lissa).  14 knots would require a larger ship, I fear.

[KWorld]

An armored ram, laid down after the Battle of Lissa.

Wespe, Austria-Hungary Armored ram laid down 1870

Displacement:
   1,389 t light; 1,429 t standard; 1,505 t normal; 1,566 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (213.25 ft / 196.85 ft) x 26.25 ft x (18.04 / 18.63 ft)
   (65.00 m / 60.00 m) x 8.00 m  x (5.50 / 5.68 m)

Armament:
      2 - 7.00" / 178 mm 14.0 cal guns - 110.00lbs / 49.90kg shells, 80 per gun
     Breech loading guns in casemate mounts, 1870 Model
     2 x Single mounts on centreline ends, evenly spread
      Weight of broadside 220 lbs / 100 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.94" / 100 mm   127.95 ft / 39.00 m   6.56 ft / 2.00 m
   Ends:   3.94" / 100 mm     39.37 ft / 12.00 m   9.84 ft / 3.00 m
     29.53 ft / 9.00 m Unarmoured ends
   Upper:   3.94" / 100 mm   127.95 ft / 39.00 m   3.28 ft / 1.00 m
     Main Belt covers 100 % of normal length
     Main belt does not fully cover magazines and engineering spaces

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   2nd:   15.7" / 400 mm   8.66" / 220 mm            -

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

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 2,521 ihp / 1,881 Kw = 15.00 kts
   Range 1,500nm at 7.00 kts
   Bunker at max displacement = 136 tons (100% coal)

Complement:
   120 - 157

Cost:
   £0.133 million / $0.532 million

Distribution of weights at normal displacement:
   Armament: 12 tons, 0.8 %
      - Guns: 12 tons, 0.8 %
   Armour: 391 tons, 26.0 %
      - Belts: 268 tons, 17.8 %
      - Armament: 107 tons, 7.1 %
      - Conning Tower: 17 tons, 1.1 %
   Machinery: 576 tons, 38.3 %
   Hull, fittings & equipment: 410 tons, 27.3 %
   Fuel, ammunition & stores: 116 tons, 7.7 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     501 lbs / 227 Kg = 6.6 x 6 " / 152 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.12
   Metacentric height 0.8 ft / 0.3 m
   Roll period: 12.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 55 %
         - Recoil effect (Restricted arc if above 1.00): 0.20
   Seaboat quality  (Average = 1.00): 1.01

Hull form characteristics:
   Hull has a flush deck,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.565 / 0.569
   Length to Beam Ratio: 7.50 : 1
   'Natural speed' for length: 14.03 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 55
   Bow angle (Positive = bow angles forward): -10.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  7.38 ft / 2.25 m,  6.56 ft / 2.00 m
      - Forward deck:   30.00 %,  6.56 ft / 2.00 m,  6.56 ft / 2.00 m
      - Aft deck:   35.00 %,  6.56 ft / 2.00 m,  6.56 ft / 2.00 m
      - Quarter deck:   15.00 %,  6.56 ft / 2.00 m,  6.56 ft / 2.00 m
      - Average freeboard:      6.63 ft / 2.02 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 127.1 %
      - Above water (accommodation/working, high = better): 38.1 %
   Waterplane Area: 3,657 Square feet or 340 Square metres
   Displacement factor (Displacement / loading): 91 %
   Structure weight / hull surface area: 61 lbs/sq ft or 300 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.91
      - Longitudinal: 2.33
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Extremely poor accommodation and workspace room

Casemate guns are Armstrong 110-pounder rifled breech loaders.

End armor is only on the bow of the ship, stern is unarmored.

[KWorld]

A spar-torpedo boat, intended to defend harbors against the dastardly Pasta Navy.

T-1, Austria-Hungary Spar torpedo boat laid down 1870

Displacement:
   188 t light; 192 t standard; 196 t normal; 200 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (98.43 ft / 98.43 ft) x 13.12 ft x (9.84 / 9.99 ft)
   (30.00 m / 30.00 m) x 4.00 m  x (3.00 / 3.04 m)

Armament:
      6 - 0.45" / 11.4 mm 45.0 cal guns - 0.04lbs / 0.02kg shells, 400 per gun
     Breech loading guns in deck mount, 1870 Model
     1 x Single mount on centreline forward
      Weight of broadside 0 lbs / 0 kg

Armour:
   - Conning towers: Forward 2.95" / 75 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 1 shaft, 2,143 ihp / 1,599 Kw = 18.00 kts
   Range 100nm at 10.00 kts
   Bunker at max displacement = 8 tons (100% coal)
     Caution: Delicate, lightweight machinery

Complement:
   26 - 34

Cost:
   £0.023 million / $0.093 million

Distribution of weights at normal displacement:
   Armament: 0 tons, 0.1 %
      - Guns: 0 tons, 0.1 %
   Armour: 2 tons, 1.1 %
      - Conning Tower: 2 tons, 1.1 %
   Machinery: 119 tons, 60.9 %
   Hull, fittings & equipment: 63 tons, 32.1 %
   Fuel, ammunition & stores: 8 tons, 4.3 %
   Miscellaneous weights: 3 tons, 1.5 %
      - On freeboard deck: 3 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     31 lbs / 14 Kg = 971.8 x 0.5 " / 11 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 0.3 ft / 0.1 m
   Roll period: 10.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 23 %
         - Recoil effect (Restricted arc if above 1.00): 0.00
   Seaboat quality  (Average = 1.00): 0.24

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.540 / 0.542
   Length to Beam Ratio: 7.50 : 1
   'Natural speed' for length: 9.92 kts
   Power going to wave formation at top speed: 75 %
   Trim (Max stability = 0, Max steadiness = 100): 45
   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:   20.00 %,  6.56 ft / 2.00 m,  6.56 ft / 2.00 m
      - Forward deck:   30.00 %,  6.56 ft / 2.00 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:      5.50 ft / 1.68 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 196.7 %
      - Above water (accommodation/working, high = better): 33.6 %
   Waterplane Area: 865 Square feet or 80 Square metres
   Displacement factor (Displacement / loading): 19 %
   Structure weight / hull surface area: 31 lbs/sq ft or 151 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.83
      - Longitudinal: 5.54
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Extremely poor accommodation and workspace room
   Ship has quick, lively roll, not a steady gun platform
   Caution: Lacks seaworthiness - very limited seakeeping ability

The miscellaneous weight supports a 5m spar torpedo carrying a 100kg charge.

The .45" gun is a 6-barrel Gatling, mounted forward.

[Jefgte]

IMO, add a ram could be interresting...

Jef

[KWorld]

This one's really too small to be a good ramming vessel, IMO.  Besides, it likely wouldn't survive the impact, and the spar torpedo will do more damage than it's ram would (and the boat has a chance to run away afterwards).

[miketr]

CHANCE to run away, but yes too small to be a ram vessel.

Michael

[KWorld]

CHANCE to run away, but yes too small to be a ram vessel.

It's certainly possible that the explosion of the spar torpedo will stave in her bows and leave her sinking, or that a shot will burst her boiler and leave her aflame, yes. 

[Jefgte]

...it likely wouldn't survive the impact...

An early Kamikaze

;D  ;D  ;D

[KWorld]

SMS Lissa, Austria-Hungary Central-battery Ironclad laid down 1870

Displacement:
   7,357 t light; 7,699 t standard; 8,066 t normal; 8,360 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (328.08 ft / 311.68 ft) x 42.65 ft (Bulges 49.21 ft) x (27.89 / 28.90 ft)
   (100.00 m / 95.00 m) x 13.00 m (Bulges 15.00 m)  x (8.50 / 8.81 m)

Armament:
      6 - 9.45" / 240 mm 25.0 cal guns - 330.69lbs / 150.00kg shells, 80 per gun
     Breech loading guns in casemate mounts, 1870 Model
     4 x Single mounts on sides, forward deck aft
      4 hull mounts in casemates- Limited use in all but light seas
     2 x Single mounts on sides, aft deck forward
      2 hull mounts in casemates- Limited use in all but light seas
      2 - 9.45" / 240 mm 25.0 cal guns - 330.69lbs / 150.00kg shells, 120 per gun
     Breech loading guns in deck mounts, 1870 Model
     2 x Single mounts on centreline ends, evenly spread
      8 - 7.00" / 178 mm 14.0 cal guns - 110.00lbs / 49.90kg shells, 100 per gun
     Breech loading guns in deck mounts, 1870 Model
     8 x Single mounts on sides, evenly spread
      24 - 0.45" / 11.4 mm 45.0 cal guns - 0.04lbs / 0.02kg shells, 400 per gun
     Breech loading guns in deck mounts, 1870 Model
     4 x 2 row sextuple mounts on side ends, evenly spread
      4 raised mounts
      Weight of broadside 3,526 lbs / 1,600 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   9.45" / 240 mm   202.59 ft / 61.75 m   18.04 ft / 5.50 m
   Ends:   9.45" / 240 mm     62.34 ft / 19.00 m   18.04 ft / 5.50 m
     46.75 ft / 14.25 m Unarmoured ends
   Upper:   7.09" / 180 mm   202.59 ft / 61.75 m   7.38 ft / 2.25 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   12.6" / 320 mm   5.91" / 150 mm      5.91" / 150 mm

   - Armoured deck - multiple decks:
   For and Aft decks: 2.56" / 65 mm
   Forecastle: 1.18" / 30 mm  Quarter deck: 1.77" / 45 mm

   - Conning towers: Forward 9.45" / 240 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 1 shaft, 6,281 ihp / 4,686 Kw = 15.00 kts
   Range 2,000nm at 8.00 kts
   Bunker at max displacement = 660 tons (100% coal)

Complement:
   425 - 553

Cost:
   £0.555 million / $2.219 million

Distribution of weights at normal displacement:
   Armament: 251 tons, 3.1 %
      - Guns: 251 tons, 3.1 %
   Armour: 3,193 tons, 39.6 %
      - Belts: 2,338 tons, 29.0 %
      - Armament: 327 tons, 4.0 %
      - Armour Deck: 447 tons, 5.5 %
      - Conning Tower: 82 tons, 1.0 %
   Machinery: 1,540 tons, 19.1 %
   Hull, fittings & equipment: 1,970 tons, 24.4 %
   Fuel, ammunition & stores: 710 tons, 8.8 %
   Miscellaneous weights: 403 tons, 5.0 %
      - Above deck: 403 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     6,274 lbs / 2,846 Kg = 21.3 x 9.4 " / 240 mm shells or 1.5 torpedoes
   Stability (Unstable if below 1.00): 1.22
   Metacentric height 2.0 ft / 0.6 m
   Roll period: 14.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.33
   Seaboat quality  (Average = 1.00): 1.74

Hull form characteristics:
   Hull has rise forward of midbreak,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.660 / 0.660
   Length to Beam Ratio: 6.33 : 1
   'Natural speed' for length: 17.65 kts
   Power going to wave formation at top speed: 45 %
   Trim (Max stability = 0, Max steadiness = 100): 40
   Bow angle (Positive = bow angles forward): -15.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
      - Forward deck:   40.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
      - Aft deck:   25.00 %,  9.02 ft / 2.75 m,  9.02 ft / 2.75 m
      - Quarter deck:   15.00 %,  9.02 ft / 2.75 m,  9.02 ft / 2.75 m
      - Average freeboard:      13.45 ft / 4.10 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 73.7 %
      - Above water (accommodation/working, high = better): 61.7 %
   Waterplane Area: 10,149 Square feet or 943 Square metres
   Displacement factor (Displacement / loading): 108 %
   Structure weight / hull surface area: 110 lbs/sq ft or 535 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.90
      - Longitudinal: 2.48
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Cramped 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

Above-decks miscellaneous weight is masts & rigging sufficient to drive the ship at half-hull speed (8.5 knots) under normal conditions (5% normal displacement).

24cm guns are Krupp breechloaders, 7" guns are Armstrong 110-pounders, .45" guns are 6-barrel Gatlings.

End armor is only on the bow, stern is unarmored.

[KWorld]

SMS Franz Joseph, Austria-Hungary Ironclad Frigate laid down 1870

Displacement:
   3,219 t light; 3,416 t standard; 3,689 t normal; 3,908 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (262.47 ft / 246.06 ft) x 32.81 ft (Bulges 39.37 ft) x (21.33 / 22.61 ft)
   (80.00 m / 75.00 m) x 10.00 m (Bulges 12.00 m)  x (6.50 / 6.89 m)

Armament:
      4 - 9.45" / 240 mm 25.0 cal guns - 330.69lbs / 150.00kg shells, 100 per gun
     Breech loading guns in deck mounts, 1870 Model
     2 x Single mounts on sides, forward deck aft
      8 - 7.00" / 178 mm 14.0 cal guns - 110.00lbs / 49.90kg shells, 100 per gun
     Breech loading guns in deck mounts, 1870 Model
     8 x Single mounts on sides, evenly spread
      24 - 0.45" / 11.4 mm 45.0 cal guns - 0.04lbs / 0.02kg shells, 400 per gun
     Breech loading guns in deck mounts, 1870 Model
     4 x 2 row sextuple mounts on side ends, evenly spread
      4 raised mounts
      Weight of broadside 2,204 lbs / 1,000 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   4.72" / 120 mm   167.32 ft / 51.00 m   9.84 ft / 3.00 m
   Ends:   4.72" / 120 mm     44.29 ft / 13.50 m   9.84 ft / 3.00 m
     34.45 ft / 10.50 m Unarmoured ends
   Upper:   4.72" / 120 mm   167.32 ft / 51.00 m   4.92 ft / 1.50 m
     Main Belt covers 105 % of normal length

   - Armoured deck - multiple decks:
   For and Aft decks: 1.97" / 50 mm
   Forecastle: 1.18" / 30 mm  Quarter deck: 1.97" / 50 mm

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

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 1 shaft, 4,155 ihp / 3,100 Kw = 15.00 kts
   Range 2,500nm at 8.00 kts
   Bunker at max displacement = 492 tons (100% coal)

Complement:
   236 - 307

Cost:
   £0.304 million / $1.215 million

Distribution of weights at normal displacement:
   Armament: 149 tons, 4.0 %
      - Guns: 149 tons, 4.0 %
   Armour: 812 tons, 22.0 %
      - Belts: 571 tons, 15.5 %
      - Armour Deck: 211 tons, 5.7 %
      - Conning Tower: 30 tons, 0.8 %
   Machinery: 1,018 tons, 27.6 %
   Hull, fittings & equipment: 981 tons, 26.6 %
   Fuel, ammunition & stores: 470 tons, 12.7 %
   Miscellaneous weights: 258 tons, 7.0 %
      - Above deck: 258 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,739 lbs / 789 Kg = 5.9 x 6 " / 152 mm shells or 0.7 torpedoes
   Stability (Unstable if below 1.00): 1.12
   Metacentric height 1.2 ft / 0.4 m
   Roll period: 15.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.60
   Seaboat quality  (Average = 1.00): 1.20

Hull form characteristics:
   Hull has a flush deck,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.625 / 0.624
   Length to Beam Ratio: 6.25 : 1
   'Natural speed' for length: 15.69 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -15.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   18.00 %,  11.48 ft / 3.50 m,  9.84 ft / 3.00 m
      - Forward deck:   22.00 %,  9.84 ft / 3.00 m,  8.20 ft / 2.50 m
      - Aft deck:   46.00 %,  8.20 ft / 2.50 m,  8.20 ft / 2.50 m
      - Quarter deck:   14.00 %,  8.20 ft / 2.50 m,  8.20 ft / 2.50 m
      - Average freeboard:      8.80 ft / 2.68 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 104.4 %
      - Above water (accommodation/working, high = better): 40.6 %
   Waterplane Area: 5,935 Square feet or 551 Square metres
   Displacement factor (Displacement / loading): 103 %
   Structure weight / hull surface area: 95 lbs/sq ft or 465 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.90
      - Longitudinal: 2.44
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Extremely poor accommodation and workspace room
   Good seaboat, rides out heavy weather easily

Above-decks miscellaneous weight is masts & rigging sufficient to drive the ship at half-hull speed (7.8 knots) + 3 knots (10.8 knots) under normal conditions (8% normal displacement).

24cm guns are Krupp breechloaders, 7" guns are Armstrong 110-pounders, .45" guns are 6-barrel Gatlings.

End armor is only on the bow, stern is unarmored.

[KWorld]

A revised version of the T-1 class spar torpedo harbor defense vessels.


T-1, Austria-Hungary Spar torpedo boat laid down 1870

Displacement:
   141 t light; 144 t standard; 147 t normal; 150 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (98.43 ft / 98.43 ft) x 13.12 ft x (7.38 / 7.50 ft)
   (30.00 m / 30.00 m) x 4.00 m  x (2.25 / 2.29 m)

Armament:
      6 - 0.45" / 11.4 mm 45.0 cal guns - 0.04lbs / 0.02kg shells, 400 per gun
     Breech loading guns in deck mount, 1870 Model
     1 x Single mount on centreline forward
      Weight of broadside 0 lbs / 0 kg

Armour:
   - Conning towers: Forward 2.95" / 75 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 1 shaft, 1,768 ihp / 1,319 Kw = 18.00 kts
   Range 100nm at 10.00 kts
   Bunker at max displacement = 6 tons (100% coal)
     Caution: Delicate, lightweight machinery

Complement:
   20 - 27

Cost:
   £0.018 million / $0.071 million

Distribution of weights at normal displacement:
   Armament: 0 tons, 0.1 %
      - Guns: 0 tons, 0.1 %
   Armour: 2 tons, 1.2 %
      - Conning Tower: 2 tons, 1.2 %
   Machinery: 90 tons, 61.5 %
   Hull, fittings & equipment: 45 tons, 30.6 %
   Fuel, ammunition & stores: 7 tons, 4.5 %
   Miscellaneous weights: 3 tons, 2.0 %
      - On freeboard deck: 3 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     21 lbs / 9 Kg = 655.8 x 0.5 " / 11 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.18
   Metacentric height 0.3 ft / 0.1 m
   Roll period: 9.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 52 %
         - Recoil effect (Restricted arc if above 1.00): 0.00
   Seaboat quality  (Average = 1.00): 1.04

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.540 / 0.542
   Length to Beam Ratio: 7.50 : 1
   'Natural speed' for length: 9.92 kts
   Power going to wave formation at top speed: 75 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   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:   20.00 %,  9.02 ft / 2.75 m,  8.20 ft / 2.50 m
      - Forward deck:   30.00 %,  7.38 ft / 2.25 m,  7.38 ft / 2.25 m
      - Aft deck:   35.00 %,  7.38 ft / 2.25 m,  7.38 ft / 2.25 m
      - Quarter deck:   15.00 %,  7.38 ft / 2.25 m,  7.38 ft / 2.25 m
      - Average freeboard:      7.61 ft / 2.32 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 198.9 %
      - Above water (accommodation/working, high = better): 60.8 %
   Waterplane Area: 865 Square feet or 80 Square metres
   Displacement factor (Displacement / loading): 17 %
   Structure weight / hull surface area: 19 lbs/sq ft or 91 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 8.02
      - Overall: 0.66
   Caution: Hull subject to strain in open-sea
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room

The miscellaneous weight supports a 5m spar torpedo carrying a 100kg charge.

The .45" gun is a 6-barrel Gatling, mounted forward.

[Jefgte]

Tonnage are economised (141 was 188)

I note overall: 0.66
& the classic 100nm@10kts & 18kts

Jef  ;)