Irish Frigate 1920

[TexanCowboy]

But those were 14 knots and gunboats, not 26 knots....that makes a big difference.

[Kaiser Kirk]

14 vs 26kts is a matter of how we implement the game mechanics.

I was simply providing an example of a small combatant in that size range with that type of arms and armor.

[snip]

Ok reworked a few things. And guess I should explain some of my choices.
First of the ship is designed to fit in a Type 0 slipway or drydock. I dont have many bigger ones, so the number of larger ships dimension wise would be limited. Second, due to the limited number of total slips, I need a ship that can fill a large number of roles. Currently, my best gunboat is primarily a minelayer. Third, since the number of total ships in any given theater of operations will most likely be small, communication between individual ships operating alone is a high priority, hence the long range wireless.

Changes for this one: I eliminated the armor belt, it seemed sort of unpopular and infective. I also got rid of the deck armor and thined out the coning tower. I also lowered the normal displacement from 750t to 550t

Garrison Ahern Class, Irish Frigate laid down 1920 (Engine 1912)

Displacement:
   456 t light; 482 t standard; 550 t normal; 604 t full load

Dimensions: Length overall / water x beam x draught
   229.09 ft / 225.00 ft x 20.00 ft x 10.00 ft (normal load)
   69.83 m / 68.58 m x 6.10 m  x 3.05 m

Armament:
      4 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1920 Model
     Quick firing guns in deck mounts
     on centreline ends, evenly spread, 1 raised mount aft
      4 - 0.98" / 25.0 mm guns (2x2 guns), 0.48lbs / 0.22kg shells, 1920 Model
     Machine guns in deck mounts
     on centreline, all amidships
      4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1920 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 130 lbs / 59 kg
   Shells per gun, main battery: 200
   2 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm   0.75" / 19 mm            -
   2nd:   0.50" / 13 mm         -               -

   - Conning tower: 1.00" / 25 mm

Machinery:
   Coal fired boilers, steam turbines,
   Geared drive, 2 shafts, 7,477 shp / 5,578 Kw = 25.00 kts
   Range 3,500nm at 10.00 kts
   Bunker at max displacement = 123 tons (100% coal)

Complement:
   56 - 73

Cost:
   £0.144 million / $0.577 million

Distribution of weights at normal displacement:
   Armament: 16 tons, 3.0 %
   Armour: 12 tons, 2.2 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 10 tons, 1.9 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 1 tons, 0.3 %
   Machinery: 224 tons, 40.7 %
   Hull, fittings & equipment: 154 tons, 28.0 %
   Fuel, ammunition & stores: 94 tons, 17.1 %
   Miscellaneous weights: 50 tons, 9.1 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     164 lbs / 74 Kg = 5.1 x 4.0 " / 102 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.13
   Metacentric height 0.6 ft / 0.2 m
   Roll period: 11.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 77 %
         - Recoil effect (Restricted arc if above 1.00): 0.75
   Seaboat quality  (Average = 1.00): 1.54

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.428
   Length to Beam Ratio: 11.25 : 1
   'Natural speed' for length: 15.00 kts
   Power going to wave formation at top speed: 62 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 15.25 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      15.00 ft / 4.57 m
      - Forecastle (10 %):   14.00 ft / 4.27 m
      - Mid (30 %):      14.00 ft / 4.27 m (9.00 ft / 2.74 m aft of break)
      - Quarterdeck (15 %):   9.00 ft / 2.74 m
      - Stern:      9.00 ft / 2.74 m
      - Average freeboard:   10.54 ft / 3.21 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 164.8 %
      - Above water (accommodation/working, high = better): 68.8 %
   Waterplane Area: 2,821 Square feet or 262 Square metres
   Displacement factor (Displacement / loading): 65 %
   Structure weight / hull surface area: 21 lbs/sq ft or 105 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 3.30
      - Overall: 0.60
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

25 tons long range wireless
10 tons for mines (or depth charges once I have the tech)
10 tons unasigned (DC's maybe as well)
5 tons construction reserve
Trial speed: 28 knts

On the subject of reworking the required speed for DD/TB standers: How about tieing it to engine year? (ie 1912 engines: 25 knts for DD standards, 1920 engines 30 knts for DD standards) And would it be possible to move that discussion to a new thread?

[TexanCowboy]

Heh....we judge purchase prices on light displacement, so you have an extra 68 tons to work with....although stuff gets built a lot faster when it is under 500 tons.

[snip]

I know, just pointing out what I changed as SS has no input for light displacement

[Logi]

You simply adjust until it tells you the right Light Displacement. If example if you did a sim and it says 499 tons and you want 500 tons. Just adjust the tonnage to jump the light tonnage by 1. You do so with adjusting the dimensions and the cB.

[snip]

ok here is the same one but with the light DP at 450

Garrison Ahern Class, Irish Frigate laid down 1920 (Engine 1912)

Displacement:
   450 t light; 475 t standard; 543 t normal; 597 t full load

Dimensions: Length overall / water x beam x draught
   229.09 ft / 225.00 ft x 20.00 ft x 10.00 ft (normal load)
   69.83 m / 68.58 m x 6.10 m  x 3.05 m

Armament:
      4 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1920 Model
     Quick firing guns in deck mounts
     on centreline ends, evenly spread, 1 raised mount aft
      4 - 0.98" / 25.0 mm guns (2x2 guns), 0.48lbs / 0.22kg shells, 1920 Model
     Machine guns in deck mounts
     on centreline, all amidships
      4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1920 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 130 lbs / 59 kg
   Shells per gun, main battery: 200
   2 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm   0.50" / 13 mm            -
   2nd:   0.50" / 13 mm         -               -

   - Conning tower: 1.00" / 25 mm

Machinery:
   Coal fired boilers, steam turbines,
   Geared drive, 2 shafts, 7,392 shp / 5,514 Kw = 25.00 kts
   Range 3,500nm at 10.00 kts
   Bunker at max displacement = 122 tons (100% coal)

Complement:
   56 - 73

Cost:
   £0.143 million / $0.571 million

Distribution of weights at normal displacement:
   Armament: 16 tons, 3.0 %
   Armour: 10 tons, 1.8 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 8 tons, 1.5 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 1 tons, 0.3 %
   Machinery: 221 tons, 40.7 %
   Hull, fittings & equipment: 153 tons, 28.1 %
   Fuel, ammunition & stores: 93 tons, 17.2 %
   Miscellaneous weights: 50 tons, 9.2 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     160 lbs / 73 Kg = 5.0 x 4.0 " / 102 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.13
   Metacentric height 0.6 ft / 0.2 m
   Roll period: 11.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 78 %
         - Recoil effect (Restricted arc if above 1.00): 0.76
   Seaboat quality  (Average = 1.00): 1.57

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.422
   Length to Beam Ratio: 11.25 : 1
   'Natural speed' for length: 15.00 kts
   Power going to wave formation at top speed: 62 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 15.25 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      15.00 ft / 4.57 m
      - Forecastle (10 %):   14.00 ft / 4.27 m
      - Mid (30 %):      14.00 ft / 4.27 m (9.00 ft / 2.74 m aft of break)
      - Quarterdeck (15 %):   9.00 ft / 2.74 m
      - Stern:      9.00 ft / 2.74 m
      - Average freeboard:   10.54 ft / 3.21 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 165.2 %
      - Above water (accommodation/working, high = better): 68.5 %
   Waterplane Area: 2,810 Square feet or 261 Square metres
   Displacement factor (Displacement / loading): 65 %
   Structure weight / hull surface area: 21 lbs/sq ft or 104 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 3.32
      - Overall: 0.60
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

25 tons long range wireless
10 tons for mines (or depth charges once I have the tech)
10 tons unasigned (DC's maybe as well)
5 tons construction reserve
Trial speed: 28 knts

I had to sacrifice .25" of the gunhouse armor from the sides and roof. Main plate is still 1"

[maddox]

The 2 21" torpedo's need 4 ton of misc weight, and adding another set of tubes won't hurt. (upping the needed weight to 8 ton)
Even if it would cost a main gun. It would be a fair deal, the torps of that size are a real deterrent to heavier ships.
And if 4 4" guns are needed to bring a merchant to bay, when 3 can't , it's a strange merchant.
But, it's your vessel.

[snip]

Garrison Ahern Class, Irish Frigate laid down 1920 (Engine 1912)

Displacement:
   449 t light; 475 t standard; 543 t normal; 597 t full load

Dimensions: Length overall / water x beam x draught
   229.09 ft / 225.00 ft x 20.00 ft x 10.00 ft (normal load)
   69.83 m / 68.58 m x 6.10 m  x 3.05 m

Armament:
      4 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1920 Model
     Quick firing guns in deck mounts
     on centreline ends, evenly spread, 1 raised mount aft
      4 - 0.98" / 25.0 mm guns (2x2 guns), 0.48lbs / 0.22kg shells, 1920 Model
     Machine guns in deck mounts
     on centreline, all amidships
      4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1920 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 130 lbs / 59 kg
   Shells per gun, main battery: 200
   2 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm   0.50" / 13 mm            -
   2nd:   0.50" / 13 mm         -               -

   - Conning tower: 1.00" / 25 mm

Machinery:
   Coal fired boilers, steam turbines,
   Geared drive, 2 shafts, 7,391 shp / 5,514 Kw = 25.00 kts
   Range 3,500nm at 10.00 kts
   Bunker at max displacement = 122 tons (100% coal)

Complement:
   56 - 73

Cost:
   £0.143 million / $0.571 million

Distribution of weights at normal displacement:
   Armament: 16 tons, 3.0 %
   Armour: 10 tons, 1.8 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 8 tons, 1.5 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 1 tons, 0.3 %
   Machinery: 221 tons, 40.7 %
   Hull, fittings & equipment: 152 tons, 28.1 %
   Fuel, ammunition & stores: 93 tons, 17.2 %
   Miscellaneous weights: 50 tons, 9.2 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     160 lbs / 73 Kg = 5.0 x 4.0 " / 102 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.13
   Metacentric height 0.6 ft / 0.2 m
   Roll period: 11.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 78 %
         - Recoil effect (Restricted arc if above 1.00): 0.76
   Seaboat quality  (Average = 1.00): 1.57

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.422
   Length to Beam Ratio: 11.25 : 1
   'Natural speed' for length: 15.00 kts
   Power going to wave formation at top speed: 62 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 15.25 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      15.00 ft / 4.57 m
      - Forecastle (10 %):   14.00 ft / 4.27 m
      - Mid (30 %):      14.00 ft / 4.27 m (9.00 ft / 2.74 m aft of break)
      - Quarterdeck (15 %):   9.00 ft / 2.74 m
      - Stern:      9.00 ft / 2.74 m
      - Average freeboard:   10.54 ft / 3.21 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 165.3 %
      - Above water (accommodation/working, high = better): 68.5 %
   Waterplane Area: 2,809 Square feet or 261 Square metres
   Displacement factor (Displacement / loading): 65 %
   Structure weight / hull surface area: 21 lbs/sq ft or 104 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 3.31
      - Overall: 0.60
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

25 tons long range wireless
10 tons for mines (or depth charges once I have the tech)
8 tons 21inch torpedos (1 set reloads)
7 tons construction reserve
Trial speed: 28 knts

I tried adding more tubes but I dont have any deckspace left, so 2 is were it stays for now. There are always bigger types but read my post a few above this, trying for best allround in a type 0 slip/dock that I can. Any other comments?

[Logi]

I repeat, drop the third gun, get one more twin tube. Or get them all superfiring. Right now you only have one gun superfiring, which means one gun is not and most take up more space than necessary.

I think there's no point in having both 25mm guns and 12.7mm guns on the ship. Stick with one.

[Sachmle]

I think the 2 on the bow are side by side like older German CLs. I'd ditch the 1" mgs and put a triple TT launcher amidships on a turntable if it was me.

[snip]

Garrison Ahern Class, Irish Frigate laid down 1920 (Engine 1912)

Displacement:
   450 t light; 476 t standard; 544 t normal; 598 t full load

Dimensions: Length overall / water x beam x draught
   229.09 ft / 225.00 ft x 20.00 ft x 10.00 ft (normal load)
   69.83 m / 68.58 m x 6.10 m  x 3.05 m

Armament:
      4 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1920 Model
     Quick firing guns in deck mounts
     on centreline ends, evenly spread, 1 raised mount aft
      6 - 0.98" / 25.0 mm guns (3x2 guns), 0.48lbs / 0.22kg shells, 1920 Model
     Machine guns in deck mounts
     on centreline, all amidships
      4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1920 Model
     Machine guns in deck mounts
     on side ends, evenly spread
   Weight of broadside 131 lbs / 59 kg
   Shells per gun, main battery: 200
   3 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm   0.50" / 13 mm            -
   2nd:   0.50" / 13 mm         -               -

   - Conning tower: 1.00" / 25 mm

Machinery:
   Coal fired boilers, steam turbines,
   Geared drive, 2 shafts, 7,408 shp / 5,526 Kw = 25.00 kts
   Range 3,500nm at 10.00 kts
   Bunker at max displacement = 122 tons (100% coal)

Complement:
   56 - 73

Cost:
   £0.143 million / $0.572 million

Distribution of weights at normal displacement:
   Armament: 16 tons, 3.0 %
   Armour: 10 tons, 1.8 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 8 tons, 1.6 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 1 tons, 0.3 %
   Machinery: 221 tons, 40.7 %
   Hull, fittings & equipment: 153 tons, 28.1 %
   Fuel, ammunition & stores: 94 tons, 17.2 %
   Miscellaneous weights: 50 tons, 9.2 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     158 lbs / 72 Kg = 4.9 x 4.0 " / 102 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.09
   Metacentric height 0.5 ft / 0.2 m
   Roll period: 11.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 78 %
         - Recoil effect (Restricted arc if above 1.00): 0.78
   Seaboat quality  (Average = 1.00): 1.55

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.423
   Length to Beam Ratio: 11.25 : 1
   'Natural speed' for length: 15.00 kts
   Power going to wave formation at top speed: 62 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 15.25 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      15.00 ft / 4.57 m
      - Forecastle (10 %):   14.00 ft / 4.27 m
      - Mid (30 %):      14.00 ft / 4.27 m (9.00 ft / 2.74 m aft of break)
      - Quarterdeck (15 %):   9.00 ft / 2.74 m
      - Stern:      9.00 ft / 2.74 m
      - Average freeboard:   10.54 ft / 3.21 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 165.3 %
      - Above water (accommodation/working, high = better): 53.4 %
   Waterplane Area: 2,812 Square feet or 261 Square metres
   Displacement factor (Displacement / loading): 65 %
   Structure weight / hull surface area: 21 lbs/sq ft or 104 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 3.31
      - Overall: 0.60
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

25 tons long range wireless
10 tons for mines (or depth charges once I have the tech)
12 tons 21inch torpedos (1 set reloads)
3 tons construction reserve and expantion room
Trial speed: 27 knts

I got a triple TT launcher on her with out having to sacrifice a gun. Aside from being a bit cramped, I like her.

[mentat]

Dropping the armour belt does the trick - is now very seaworthy and packs a useful punch for it's size - handy little ship   :)

but would suggest one further tweak - stability is bit low whilst steadiness is bit higher than needed - you can trade-off a bit by adjusting the trim

  also - i'm not sure you need 12 tons for just 3 reload Torps?? - can someone more expert comment on that ...

  maybe you can have 2x2 TT with a reload for the tonnage you have assigned?

[maddox]

I learned that a small ship and reloading torpedo tube's isn't a task that goes well together.
Better is to have a tender that goes in and brings the reloads, and the equipment to do so ,after the fish are expended. 

For Ireland the tender can be replaced by a trip to port.

A 1913 21" torpedo weights 2 tons according to the rules, so 3 in the tubes and 3 reloads together are 12 tons.

[snip]

Ok here is the newest version. I removed one of the guns after trying to draw it in the configuration that I wanted. It would not fit. The torpedo reloads have been dropped, the weight reassigned to construction reserve (gives me more wiggle room on mines and such)

Cathryn Class, Irish Frigate laid down 1920 (Engine 1912)

Displacement:
   452 t light; 479 t standard; 544 t normal; 596 t full load

Dimensions: Length overall / water x beam x draught
   230.00 ft / 225.00 ft x 20.00 ft x 10.00 ft (normal load)
   70.11 m / 68.58 m x 6.10 m  x 3.05 m

Armament:
      3 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1920 Model
     Quick firing guns in deck mounts
     on centreline ends, majority aft, 1 raised mount aft
      6 - 0.98" / 25.0 mm guns (3x2 guns), 0.48lbs / 0.22kg shells, 1920 Model
     Machine guns in deck mounts
     on centreline, all amidships
      4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1920 Model
     Machine guns in deck mounts
     on side ends, evenly spread
   Weight of broadside 99 lbs / 45 kg
   Shells per gun, main battery: 275
   3 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm         -               -
   2nd:   0.50" / 13 mm         -               -

   - Conning tower: 1.00" / 25 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 7,406 shp / 5,525 Kw = 25.00 kts
   Range 3,500nm at 10.00 kts
   Bunker at max displacement = 117 tons (90% coal)

Complement:
   56 - 73

Cost:
   £0.137 million / $0.549 million

Distribution of weights at normal displacement:
   Armament: 12 tons, 2.3 %
   Armour: 8 tons, 1.5 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 7 tons, 1.3 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 1 tons, 0.3 %
   Machinery: 228 tons, 41.8 %
   Hull, fittings & equipment: 149 tons, 27.4 %
   Fuel, ammunition & stores: 92 tons, 16.9 %
   Miscellaneous weights: 55 tons, 10.1 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     160 lbs / 72 Kg = 5.0 x 4.0 " / 102 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.12
   Metacentric height 0.6 ft / 0.2 m
   Roll period: 11.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.56
   Seaboat quality  (Average = 1.00): 1.55

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.423
   Length to Beam Ratio: 11.25 : 1
   'Natural speed' for length: 15.00 kts
   Power going to wave formation at top speed: 62 %
   Trim (Max stability = 0, Max steadiness = 100): 45
   Bow angle (Positive = bow angles forward): 18.45 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      15.00 ft / 4.57 m
      - Forecastle (10 %):   14.00 ft / 4.27 m
      - Mid (30 %):      14.00 ft / 4.27 m (9.00 ft / 2.74 m aft of break)
      - Quarterdeck (15 %):   9.00 ft / 2.74 m
      - Stern:      9.00 ft / 2.74 m
      - Average freeboard:   10.54 ft / 3.21 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 165.0 %
      - Above water (accommodation/working, high = better): 53.4 %
   Waterplane Area: 2,811 Square feet or 261 Square metres
   Displacement factor (Displacement / loading): 68 %
   Structure weight / hull surface area: 21 lbs/sq ft or 101 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 3.23
      - Overall: 0.60
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

25 tons long range wireless
10 tons for mines (or depth charges once I have the tech)
6 tons 21inch torpedoes
14 tons construction reserve and expantion room
Trial speed: 27 knts