Kingdom tiny ships

[Desertfox]

Finally got started on the Ship Designed Forum.


Small ships sure are fun. New Zion has done a few studies into them:
http://www.navalism.org/index.php?topic=2305.0

Looks like Borys just took my crown for smallest warship yet designed (in N-verse), thought I still hold the record for the smallest warship actuallly built (the 15 ton MAS boats).

Korpen, I might be stealing your pics (modified a bit of course). I especially like the first 2.

[Korpen]

No new picture, as it is identical to the 100ton already posted.
Final design of the 100ton TB that goes into production.

KTB-1, Netherlands Costal TB laid down 1912

Displacement:
   100 t light; 103 t standard; 117 t normal; 129 t full load

Dimensions: Length overall / water x beam x draught
   147,64 ft / 147,64 ft x 12,58 ft x 5,52 ft (normal load)
   45,00 m / 45,00 m x 3,83 m  x 1,68 m

Armament:
      1 - 2,56" / 65,0 mm guns in single mounts, 8,82lbs / 4,00kg shells, 1912 Model
     Quick firing gun in deck mount
     on centreline aft
      4 - 0,31" / 8,0 mm guns (3 mounts), 0,02lbs / 0,01kg shells, 1912 Model
     Machine guns in deck mounts
     on side, all amidships
   Weight of broadside 9 lbs / 4 kg
   Shells per gun, main battery: 140
   2 - 17,7" / 450 mm above water torpedoes

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 3 500 shp / 2 611 Kw = 25,07 kts
   Range 1 700nm at 12,00 kts
   Bunker at max displacement = 26 tons

Complement:
   17 - 23

Cost:
   £0,013 million / $0,053 million

Distribution of weights at normal displacement:
   Armament: 1 tons, 0,9 %
   Machinery: 63 tons, 53,7 %
   Hull, fittings & equipment: 33 tons, 28,6 %
   Fuel, ammunition & stores: 18 tons, 15,1 %
   Miscellaneous weights: 2 tons, 1,7 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     25 lbs / 11 Kg = 3,0 x 2,6 " / 65 mm shells or 0,1 torpedoes
   Stability (Unstable if below 1.00): 1,08
   Metacentric height 0,3 ft / 0,1 m
   Roll period: 10,4 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0,13
   Seaboat quality  (Average = 1.00): 0,76

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0,400
   Length to Beam Ratio: 11,74 : 1
   'Natural speed' for length: 12,15 kts
   Power going to wave formation at top speed: 70 %
   Trim (Max stability = 0, Max steadiness = 100): 65
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      9,84 ft / 3,00 m
      - Forecastle (27 %):   9,19 ft / 2,80 m (4,92 ft / 1,50 m aft of break)
      - Mid (50 %):      4,92 ft / 1,50 m
      - Quarterdeck (15 %):   4,92 ft / 1,50 m
      - Stern:      4,92 ft / 1,50 m
      - Average freeboard:   6,14 ft / 1,87 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 182,2 %
      - Above water (accommodation/working, high = better): 29,7 %
   Waterplane Area: 1 143 Square feet or 106 Square metres
   Displacement factor (Displacement / loading): 40 %
   Structure weight / hull surface area: 13 lbs/sq ft or 62 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 2,32
      - Overall: 0,58
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is extremely poor
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Korpen, I might be stealing your pics (modified a bit of course). I especially like the first 2.

Feel free, but if you wanted to I could send you my template file (that is messy, but works for me).

[Desertfox]

That would be great. What scale are you using?

[Korpen]

That would be great. What scale are you using?

For all of the later drawings, 1 pixel = ~25cm.
Found it to be a useful scale, large enogh so that it is quick and and easy to get a drawing, but fine enogh to get some details.

Well here is my "template" chaotic is the word. :)

[Korpen]

A TB for the far east. A smaller version of the KTB-2, it loses 0,7kts of speed in return for one torpedo and 20% smaller size.

1914 Mini IV, Netherlands Torpedoboot laid down 1914 (Engine 1912)

Displacement:
   200 t light; 207 t standard; 243 t normal; 271 t full load

Dimensions: Length overall / water x beam x draught
   204,30 ft / 196,85 ft x 16,40 ft x 6,66 ft (normal load)
   62,27 m / 60,00 m x 5,00 m  x 2,03 m

Armament:
      2 - 3,46" / 88,0 mm guns in single mounts, 19,84lbs / 9,00kg shells, 1914 Model
     Quick firing guns in deck mounts
     on centreline ends, evenly spread
      2 - 0,31" / 8,0 mm guns in single mounts, 0,02lbs / 0,01kg shells, 1914 Model
     Machine guns in deck mounts
     on side, all amidships
   Weight of broadside 40 lbs / 18 kg
   Shells per gun, main battery: 100
   3 - 17,7" / 450 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,20" / 5 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 6 710 shp / 5 006 Kw = 27,30 kts.
   Range 2 750nm at 12,00 kts, 275nm at 27,30 kts
   Bunker at max displacement = 64 tons

Complement:
   29 - 39

Cost:
   £0,037 million / $0,147 million

Distribution of weights at normal displacement:
   Armament: 5 tons, 2,1 %
   Armour: 1 tons, 0,3 %
      - Belts: 0 tons, 0,0 %
      - Torpedo bulkhead: 0 tons, 0,0 %
      - Armament: 1 tons, 0,3 %
      - Armour Deck: 0 tons, 0,0 %
      - Conning Tower: 0 tons, 0,0 %
   Machinery: 124 tons, 51,2 %
   Hull, fittings & equipment: 68 tons, 27,8 %
   Fuel, ammunition & stores: 42 tons, 17,5 %
   Miscellaneous weights: 3 tons, 1,0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     55 lbs / 25 Kg = 2,6 x 3,5 " / 88 mm shells or 0,1 torpedoes
   Stability (Unstable if below 1.00): 1,20
   Metacentric height 0,5 ft / 0,1 m
   Roll period: 10,1 seconds
   Steadiness   - As gun platform (Average = 50 %): 56 %
         - Recoil effect (Restricted arc if above 1.00): 0,25
   Seaboat quality  (Average = 1.00): 0,80

Hull form characteristics:
   Hull has raised forecastle, rise forward of midbreak
   Block coefficient: 0,395
   Length to Beam Ratio: 12,00 : 1
   'Natural speed' for length: 14,03 kts
   Power going to wave formation at top speed: 67 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   Bow angle (Positive = bow angles forward): 30,00 degrees
   Stern overhang: 0,82 ft / 0,25 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      11,48 ft / 3,50 m
      - Forecastle (18 %):   10,66 ft / 3,25 m (6,56 ft / 2,00 m aft of break)
      - Mid (30 %):      6,56 ft / 2,00 m (6,23 ft / 1,90 m aft of break)
      - Quarterdeck (15 %):   6,23 ft / 1,90 m
      - Stern:      7,38 ft / 2,25 m
      - Average freeboard:   7,22 ft / 2,20 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 182,2 %
      - Above water (accommodation/working, high = better): 44,6 %
   Waterplane Area: 1 982 Square feet or 184 Square metres
   Displacement factor (Displacement / loading): 42 %
   Structure weight / hull surface area: 16 lbs/sq ft or 80 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 1,60
      - Overall: 0,56
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is extremely poor
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

[The Rock Doctor]

Looks reasonably capable for its size. 

Why two 3" guns with limited shell numbers, rather than one gun with more or two smaller guns with more shells?

[Korpen]

Looks reasonably capable for its size. 

Why two 3" guns with limited shell numbers, rather than one gun with more or two smaller guns with more shells?

It allows for more shells in the air in a shorter time, and the ammo load is still enough for a 10 minutes engagement. Longer or repeated engagements is not really expected, as the ship will operate in close proximity of own bases (or supply ships).
Smaller guns require almost the same manpower to operate as a 88, but have much less punch, something I think is important against opposing light vessels, or if raiding merchantmen.

[Jefgte]

Good TB for coastal defense & economical too.

With the 1916 engine techno, increase the speed.


Jef

[Korpen]

Good TB for coastal defense & economical too.

With the 1916 engine techno, increase the speed.


Jef

1916 engines would allow for 28kts, and some more shells for the guns.

For some reason i have really fallen for the singe torpedo tube in the bow, I just think it is so cute.

[P3D]

I was thinking if Orange could use such a small ships effectively, but not really. Too long coastline, too few anchorages to speak of, and minimal number of coastal islands.

[The Rock Doctor]

Orange's friends in the Persian Gulf might find a few to be useful, though.

[Korpen]

I was thinking if Orange could use such a small ships effectively, but not really. Too long coastline, too few anchorages to speak of, and minimal number of coastal islands.

True, you really do not have a lot of coastline to defend in practice; your fleet are by nature a high sea fleet. But I have by now built 40+ 100ton and 250ton TB for Europe to oppose the aggressive build up of the UNK, and this boat got longer range then the TBJs I got deployed in Asia atm. So I think ships like this will be a usefull addition to the NOI defence forces, and god knows there are plenty of islands, river mouths and other places to operate from. Especially combined with the "guerrilla" tankers.

Add to this I also think it is quite fun to try and design this kind of small ships. :)

[Korpen]

Orange's friends in the Persian Gulf might find a few to be useful, though.

KM De Shelde, or the nice men at Brugge might have something for sale... ;)

[Korpen]

A bit too slow, but not that bad for costal defence work. The main selling point of this ship is her size, or lack of.

STB-X7, Netherlands Costal TB laid down 1912 (Engine 1916)

Displacement:
   75 t light; 77 t standard; 86 t normal; 93 t full load

Dimensions: Length overall / water x beam x draught
   137,80 ft / 137,80 ft x 11,48 ft x 4,92 ft (normal load)
   42,00 m / 42,00 m x 3,50 m  x 1,50 m

Armament:
      1 - 1,97" / 50,0 mm guns in single mounts, 3,81lbs / 1,73kg shells, 1912 Model
     Quick firing gun in deck mount
     on centreline aft
      2 - 0,31" / 8,0 mm guns in single mounts, 0,02lbs / 0,01kg shells, 1912 Model
     Machine guns in deck mounts
     on side, all amidships
   Weight of broadside 4 lbs / 2 kg
   Shells per gun, main battery: 100
   2 - 17,7" / 450 mm above water torpedoes

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 2 745 shp / 2 048 Kw = 24,65 kts
   Range 1 500nm at 12,00 kts, 180nm at 24,65 kts
   Bunker at max displacement = 17 tons

Complement:
   13 - 18

Cost:
   £0,010 million / $0,038 million

Distribution of weights at normal displacement:
   Armament: 0 tons, 0,6 %
   Machinery: 47 tons, 54,1 %
   Hull, fittings & equipment: 26 tons, 30,0 %
   Fuel, ammunition & stores: 11 tons, 12,9 %
   Miscellaneous weights: 2 tons, 2,3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     19 lbs / 9 Kg = 5,1 x 2,0 " / 50 mm shells or 0,1 torpedoes
   Stability (Unstable if below 1.00): 1,02
   Metacentric height 0,2 ft / 0,1 m
   Roll period: 10,7 seconds
   Steadiness   - As gun platform (Average = 50 %): 49 %
         - Recoil effect (Restricted arc if above 1.00): 0,08
   Seaboat quality  (Average = 1.00): 0,70

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0,387
   Length to Beam Ratio: 12,00 : 1
   'Natural speed' for length: 11,74 kts
   Power going to wave formation at top speed: 70 %
   Trim (Max stability = 0, Max steadiness = 100): 67
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      8,20 ft / 2,50 m
      - Forecastle (27 %):   6,56 ft / 2,00 m (4,92 ft / 1,50 m aft of break)
      - Mid (50 %):      4,92 ft / 1,50 m
      - Quarterdeck (15 %):   4,59 ft / 1,40 m
      - Stern:      5,91 ft / 1,80 m
      - Average freeboard:   5,53 ft / 1,69 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 181,4 %
      - Above water (accommodation/working, high = better): 26,0 %
   Waterplane Area: 967 Square feet or 90 Square metres
   Displacement factor (Displacement / loading): 41 %
   Structure weight / hull surface area: 12 lbs/sq ft or 57 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 2,23
      - Overall: 0,58
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is extremely poor
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

[Korpen]

Ok, she is not tiny, but an uncompromising speedboat:

Enough misc weight for the torpedoes and radio set.

I-Class, Netherlands Torpedoboot laid down 1916, and she fits into a type 1 dry dock.

Displacement:
   1 500 t light; 1 543 t standard; 1 641 t normal; 1 720 t full load

Dimensions: Length overall / water x beam x draught
   393,70 ft / 393,70 ft x 32,81 ft x 11,15 ft (normal load)
   120,00 m / 120,00 m x 10,00 m  x 3,40 m

Armament:
      4 - 3,94" / 100 mm guns in single mounts, 30,51lbs / 13,84kg shells, 1916 Model
     Breech loading guns in deck mounts
     on centreline ends, evenly spread, 2 raised mounts - superfiring
   Weight of broadside 122 lbs / 55 kg
   Shells per gun, main battery: 150
   9 - 17,7" / 450 mm above water torpedoes

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 49 629 shp / 37 023 Kw = 36,00 kts
   Range 150nm at 36,00 kts
   Bunker at max displacement = 177 tons

Complement:
   128 - 167

Cost:
   £0,346 million / $1,385 million

Distribution of weights at normal displacement:
   Armament: 15 tons, 0,9 %
   Machinery: 1 044 tons, 63,6 %
   Hull, fittings & equipment: 420 tons, 25,6 %
   Fuel, ammunition & stores: 141 tons, 8,6 %
   Miscellaneous weights: 20 tons, 1,2 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     290 lbs / 131 Kg = 9,5 x 3,9 " / 100 mm shells or 0,2 torpedoes
   Stability (Unstable if below 1.00): 1,45
   Metacentric height 1,8 ft / 0,5 m
   Roll period: 10,3 seconds
   Steadiness   - As gun platform (Average = 50 %): 61 %
         - Recoil effect (Restricted arc if above 1.00): 0,09
   Seaboat quality  (Average = 1.00): 0,80

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0,399
   Length to Beam Ratio: 12,00 : 1
   'Natural speed' for length: 19,84 kts
   Power going to wave formation at top speed: 65 %
   Trim (Max stability = 0, Max steadiness = 100): 77
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      22,31 ft / 6,80 m
      - Forecastle (15 %):   16,40 ft / 5,00 m
      - Mid (41 %):      16,40 ft / 5,00 m (8,20 ft / 2,50 m aft of break)
      - Quarterdeck (15 %):   8,20 ft / 2,50 m
      - Stern:      11,48 ft / 3,50 m
      - Average freeboard:   12,17 ft / 3,71 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 213,5 %
      - Above water (accommodation/working, high = better): 87,5 %
   Waterplane Area: 7 945 Square feet or 738 Square metres
   Displacement factor (Displacement / loading): 43 %
   Structure weight / hull surface area: 30 lbs/sq ft or 147 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 0,85
      - Overall: 0,52
   Hull space for machinery, storage, compartmentation is extremely poor
   Room for accommodation and workspaces is cramped
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather