IJN, Post-1900

[Logi]

Here's a short-range light cruiser I might build in lieu of the Takasago class early on. The role is to supplement the Task Forces in the Yellow Sea, East/South China Seas, and Sea of Japan.
As it is intended to be a semi-flagship for the destroyer/torpedo boat units, it has the same range as them (2,000 nm @ 10 kn).

There's going to be a Naval Expansion Bill for the Northwestern Squadron in H1/1900 to better match the Russian Fleet in Vladivostok. I'm current wavering between building a pair of Takasago-class cruisers to fill the task or three JK2000-class cruisers. Which do you guys think is better?

On the question of the Takasago-class's role: The Takasago is intended to supplement understaffed task forces. As a much (50%) cheaper alternative to the Asama, it still provides plenty of firepower, which make the delaying action of this task forces more feasible. That is, it helps the understaffed fleets delay for the main fleets to arrive.
The understaffed fleets in question would be the:
- Northwestern Squadron (2 old CLs, 8 DDs, 4 TBs)
- Western Squadron (2 old CLs, 8 DDs, 4 TBs)
- Cross-Pacific Squadron (None...)
Another point is that it assists in sea control due to having more ships in the water (with the same long range) with a faster production rate. In particular, the Cross-Pacific Squadron is in terrible need of ships and has to cover a vast territory. It's logistics issue will be much reduced as Port Saipan, Port Honjara, IJN Aikoku Maru, and IJN Miho come online, but for now it needs hulls in the water ASAP.

JK2000, Japan Light Cruiser laid down 1900

Displacement:
   2,500 t light; 2,642 t standard; 2,780 t normal; 2,890 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (295.28 ft / 295.28 ft) x 31.82 ft x (19.69 / 20.29 ft)
   (90.00 m / 90.00 m) x 9.70 m  x (6.00 / 6.18 m)

Armament:
      2 - 7.87" / 200 mm 45.0 cal guns - 242.51lbs / 110.00kg shells, 100 per gun
     Breech loading guns in deck mounts, 1900 Model
     2 x Single mounts on centreline, evenly spread
      6 - 5.98" / 152 mm 45.0 cal guns - 108.07lbs / 49.02kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1900 Model
     6 x Single mounts on sides, evenly spread
      4 - 1.97" / 50.0 mm 45.0 cal guns - 3.86lbs / 1.75kg shells, 300 per gun
     Breech loading guns in deck mounts, 1900 Model
     4 x Single mounts on sides, evenly spread
      16 - 1.00" / 25.4 mm 35.0 cal guns - 0.47lbs / 0.21kg shells, 500 per gun
     Machine guns in deck mounts, 1900 Model
     4 x Quad mounts on sides, evenly spread
      20 - 0.43" / 11.0 mm 35.0 cal guns - 0.04lbs / 0.02kg shells, 1,000 per gun
     Breech loading guns in deck mounts, 1900 Model
     2 x 2 row decuple mounts on sides amidships
      Weight of broadside 1,157 lbs / 525 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.91" / 150 mm         -               -
   2nd:   3.94" / 100 mm         -               -
   3rd:   0.20" / 5 mm         -               -
   4th:   0.20" / 5 mm         -               -
   5th:   0.12" / 3 mm         -               -

   - Protected deck - single deck:
   For and Aft decks: 3.94" / 100 mm
   Forecastle: 3.94" / 100 mm  Quarter deck: 3.94" / 100 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 7,917 ihp / 5,906 Kw = 20.00 kts
   Range 2,000nm at 10.00 kts
   Bunker at max displacement = 249 tons (100% coal)

Complement:
   190 - 248

Cost:
   £0.297 million / $1.190 million

Distribution of weights at normal displacement:
   Armament: 173 tons, 6.2 %
      - Guns: 173 tons, 6.2 %
   Armour: 559 tons, 20.1 %
      - Armament: 88 tons, 3.2 %
      - Armour Deck: 471 tons, 16.9 %
   Machinery: 1,104 tons, 39.7 %
   Hull, fittings & equipment: 634 tons, 22.8 %
   Fuel, ammunition & stores: 280 tons, 10.1 %
   Miscellaneous weights: 31 tons, 1.1 %
      - On freeboard deck: 31 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,255 lbs / 569 Kg = 5.1 x 7.9 " / 200 mm shells or 0.4 torpedoes
   Stability (Unstable if below 1.00): 1.29
   Metacentric height 1.4 ft / 0.4 m
   Roll period: 11.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.83
   Seaboat quality  (Average = 1.00): 1.53

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.526 / 0.531
   Length to Beam Ratio: 9.28 : 1
   'Natural speed' for length: 17.18 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 46
   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 %,  11.48 ft / 3.50 m,  11.48 ft / 3.50 m
      - Forward deck:   30.00 %,  11.48 ft / 3.50 m,  11.48 ft / 3.50 m
      - Aft deck:   30.00 %,  11.48 ft / 3.50 m,  11.48 ft / 3.50 m
      - Quarter deck:   20.00 %,  11.48 ft / 3.50 m,  11.48 ft / 3.50 m
      - Average freeboard:      11.48 ft / 3.50 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 148.3 %
      - Above water (accommodation/working, high = better): 73.8 %
   Waterplane Area: 6,413 Square feet or 596 Square metres
   Displacement factor (Displacement / loading): 77 %
   Structure weight / hull surface area: 58 lbs/sq ft or 283 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.89
      - Longitudinal: 2.68
      - Overall: 1.00
   Cramped 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 Deck: 31 t
- 25t, Long-Range Wireless
-   6t, 2x45cm single TTs with two reloads each

[Logi]

These will probably be built after or concurrent with the JK2000/Takasogo-class cruisers. Intended for blue water fleet work.

TB500, Japan Torpedo Boat laid down 1900

Displacement:
   500 t light; 515 t standard; 621 t normal; 706 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (229.66 ft / 229.66 ft) x 16.40 ft x (9.84 / 10.93 ft)
   (70.00 m / 70.00 m) x 5.00 m  x (3.00 / 3.33 m)

Armament:
      2 - 2.95" / 75.0 mm 45.0 cal guns - 12.98lbs / 5.89kg shells, 200 per gun
     Breech loading guns in deck mounts, 1898 Model
     2 x Single mounts on centreline ends, evenly spread
      Weight of broadside 26 lbs / 12 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.59" / 15 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, 9,866 ihp / 7,360 Kw = 26.00 kts
   Range 4,000nm at 10.00 kts
   Bunker at max displacement = 190 tons (100% coal)
     Caution: Delicate, lightweight machinery

Trial Speed: 29.00 kts

Complement:
   61 - 80

Cost:
   £0.072 million / $0.286 million

Distribution of weights at normal displacement:
   Armament: 4 tons, 0.7 %
      - Guns: 4 tons, 0.7 %
   Armour: 4 tons, 0.6 %
      - Armament: 3 tons, 0.4 %
      - Conning Tower: 1 tons, 0.1 %
   Machinery: 377 tons, 60.6 %
   Hull, fittings & equipment: 110 tons, 17.6 %
   Fuel, ammunition & stores: 121 tons, 19.5 %
   Miscellaneous weights: 6 tons, 1.0 %
      - On freeboard deck: 6 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     99 lbs / 45 Kg = 7.7 x 3.0 " / 75 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.22
   Metacentric height 0.5 ft / 0.1 m
   Roll period: 9.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.17
   Seaboat quality  (Average = 1.00): 1.01

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.586 / 0.600
   Length to Beam Ratio: 14.00 : 1
   'Natural speed' for length: 15.15 kts
   Power going to wave formation at top speed: 66 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   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 %,  11.48 ft / 3.50 m,  10.50 ft / 3.20 m
      - Forward deck:   35.00 %,  8.20 ft / 2.50 m,  8.20 ft / 2.50 m
      - Aft deck:   35.00 %,  8.20 ft / 2.50 m,  8.20 ft / 2.50 m
      - Quarter deck:   15.00 %,  8.20 ft / 2.50 m,  8.20 ft / 2.50 m
      - Average freeboard:      8.61 ft / 2.62 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 197.8 %
      - Above water (accommodation/working, high = better): 69.7 %
   Waterplane Area: 2,720 Square feet or 253 Square metres
   Displacement factor (Displacement / loading): 20 %
   Structure weight / hull surface area: 17 lbs/sq ft or 82 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.59
      - Overall: 0.56
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

3 x 1 45cm TT rotating centerline, with one reload

[Logi]

The 1900-H1 construction report is looking like this:

2x DD500 laid down, 100% funded - Operational in 1900/H2
2x Takasogo laid down, 50% funded
1x Wakamiya laid down, 75% funded
1x Aikoku Maru laid down, 100% funded - Operational in 1901/H1
1x Asama laid down, 10% funded
1x Miho laid down, 5% funded

Port Saipan started construction, Type 0
Port Honjara started construction, Type 0

[Logi]

The JK2000 class will instead be replaced with this variant with a uniform 152mm main battery and twice the steam range (4000nm@10kn).
Arrangement is: -[A]xx[ B]-     -[X] [Y]- [Z]-

CL2500, IJN Light Cruiser laid down 1900

Displacement:
   2,000 t light; 2,094 t standard; 2,319 t normal; 2,499 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (295.27 ft / 291.99 ft) x 32.81 ft x (17.39 / 18.39 ft)
   (90.00 m / 89.00 m) x 10.00 m  x (5.30 / 5.60 m)

Armament:
      5 - 5.98" / 152 mm 45.0 cal guns - 108.07lbs / 49.02kg shells, 150 per gun
     Breech loading guns in deck and hoist mounts, 1900 Model
     5 x Single mounts on centreline ends, majority aft
      1 raised mount aft - superfiring
      4 - 1.97" / 50.0 mm 45.0 cal guns - 3.86lbs / 1.75kg shells, 300 per gun
     Breech loading guns in deck mounts, 1900 Model
     4 x Single mounts on sides, evenly spread
      Weight of broadside 556 lbs / 252 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.98" / 25 mm   0.51" / 13 mm      0.98" / 25 mm
   2nd:   0.20" / 5 mm         -               -

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

   - Conning towers: Forward 0.98" / 25 mm, Aft 0.00" / 0 mm

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 7,011 ihp / 5,230 Kw = 20.00 kts
   Range 4,000nm at 10.00 kts
   Bunker at max displacement = 405 tons (90% coal)

Complement:
   166 - 217

Cost:
   £0.255 million / $1.021 million

Distribution of weights at normal displacement:
   Armament: 146 tons, 6.3 %
      - Guns: 146 tons, 6.3 %
   Armour: 259 tons, 11.2 %
      - Armament: 24 tons, 1.0 %
      - Armour Deck: 232 tons, 10.0 %
      - Conning Tower: 4 tons, 0.2 %
   Machinery: 953 tons, 41.1 %
   Hull, fittings & equipment: 611 tons, 26.3 %
   Fuel, ammunition & stores: 319 tons, 13.7 %
   Miscellaneous weights: 31 tons, 1.3 %
      - On freeboard deck: 6 tons
      - Above deck: 25 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     913 lbs / 414 Kg = 8.5 x 6.0 " / 152 mm shells or 0.4 torpedoes
   Stability (Unstable if below 1.00): 1.12
   Metacentric height 1.2 ft / 0.4 m
   Roll period: 12.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.87
   Seaboat quality  (Average = 1.00): 1.21

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.487 / 0.497
   Length to Beam Ratio: 8.90 : 1
   'Natural speed' for length: 17.09 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 58
   Bow angle (Positive = bow angles forward): 14.00 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 %,  13.12 ft / 4.00 m,  9.84 ft / 3.00 m
      - Forward deck:   30.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Aft deck:   30.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Quarter deck:   20.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Average freeboard:      10.10 ft / 3.08 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 153.6 %
      - Above water (accommodation/working, high = better): 71.3 %
   Waterplane Area: 6,310 Square feet or 586 Square metres
   Displacement factor (Displacement / loading): 78 %
   Structure weight / hull surface area: 61 lbs/sq ft or 298 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.92
      - Longitudinal: 1.97
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

On freeboard deck: 6t
- 6t, 2 x Single 45mm TT with 2 reloads each

Above Deck: 25t
- 25t, Long-Range Wireless Set

[Kaiser Kirk]

I'm a little impressed with the weaponry with such a small displacement,
it's Basically an earlier USS Erie, but with an armored deck.
Actually that makes her an enlarged & more heavily armed & armored Flores-class gunboat.
edit : actually the Yorktown PG-1 is probably a better comparison.
Albeit, she's longer, thinner and deeper than that, to much so in my opinion.


It's curious how one's personal interpretation works.
To me, a protected deck comes a little above the waterline to a point below the waterline in a turtleback.
To make that work, the "Hull below water " should probable be less than 100%, as more would mean critical things sticking up above that deck.

Historically, that led to the Armored deck- a bit above waterline to allow both space for vital stuff, and when/if you list, your hatches have further to go before they start swallowing water.

So, this design has an armored deck. It also has 153.6% of the below decks area in use.
Good reason to have an armored deck.
But...there's no belt armor.
Low hits, shell splinters, etc, can go right into the vitals...and those vitals stick way up out of the water.
So I'd advise an armored belt.

[Logi]

The protect deck not covering everything would be present in the Naniwa-class as well.

I think this will be it. It's better than the Naniwa-class it will be replacing.
- Almost all it's guns can fire broadside, meaning higher effective broadside weight (and fire rate)
- Better future expansion ability (top-weight is probably the most damaging added weight to a ship so it's designed around reserve weight located above deck)
- Speed is overrated, especially since more speed requires a belt to cover what the protected deck can't
- It's more protected (because of protected deck covering everything) and much less cramped in all aspects
- It has better seakeeping

KJ3000, Japan Cruiser laid down 1900

Displacement:
   3,000 t light; 3,238 t standard; 3,926 t normal; 4,476 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (393.70 ft / 393.70 ft) x 39.04 ft x (17.72 / 19.59 ft)
   (120.00 m / 120.00 m) x 11.90 m  x (5.40 / 5.97 m)

Armament:
      2 - 7.87" / 200 mm 45.0 cal guns - 246.18lbs / 111.66kg shells, 300 per gun
     Breech loading guns in deck and hoist mounts, 1900 Model
     2 x Single mounts on centreline ends, evenly spread
      4 - 5.98" / 152 mm 45.0 cal guns - 108.07lbs / 49.02kg shells, 300 per gun
     Quick firing guns in deck and hoist mounts, 1900 Model
     4 x Single mounts on centreline, evenly spread
      2 raised mounts
      4 - 2.24" / 57.0 mm 40.0 cal guns - 5.51lbs / 2.50kg shells, 450 per gun
     Quick firing guns in deck mounts, 1898 Model
     4 x Single mounts on sides, evenly spread
      Weight of broadside 947 lbs / 429 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.98" / 25 mm   0.39" / 10 mm      0.39" / 10 mm
   2nd:   0.98" / 25 mm   0.39" / 10 mm      0.39" / 10 mm
   3rd:   0.59" / 15 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 2.95" / 75 mm
   Forecastle: 1.97" / 50 mm  Quarter deck: 1.97" / 50 mm

   - Conning towers: Forward 1.46" / 37 mm, Aft 0.00" / 0 mm

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 5,376 ihp / 4,010 Kw = 17.50 kts
   Range 9,000nm at 10.00 kts
   Bunker at max displacement = 1,238 tons (90% coal)

Complement:
   247 - 322

Cost:
   £0.310 million / $1.238 million

Distribution of weights at normal displacement:
   Armament: 247 tons, 6.3 %
      - Guns: 247 tons, 6.3 %
   Armour: 568 tons, 14.5 %
      - Armament: 29 tons, 0.7 %
      - Armour Deck: 531 tons, 13.5 %
      - Conning Tower: 8 tons, 0.2 %
   Machinery: 832 tons, 21.2 %
   Hull, fittings & equipment: 1,167 tons, 29.7 %
   Fuel, ammunition & stores: 926 tons, 23.6 %
   Miscellaneous weights: 187 tons, 4.8 %
      - On freeboard deck: 12 tons
      - Above deck: 175 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,274 lbs / 1,939 Kg = 17.5 x 7.9 " / 200 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.09
   Metacentric height 1.4 ft / 0.4 m
   Roll period: 13.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.95
   Seaboat quality  (Average = 1.00): 1.51

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.505 / 0.520
   Length to Beam Ratio: 10.08 : 1
   'Natural speed' for length: 19.84 kts
   Power going to wave formation at top speed: 35 %
   Trim (Max stability = 0, Max steadiness = 100): 47
   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 %,  16.40 ft / 5.00 m,  14.76 ft / 4.50 m
      - Forward deck:   35.00 %,  14.76 ft / 4.50 m,  14.76 ft / 4.50 m
      - Aft deck:   30.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Quarter deck:   15.00 %,  9.84 ft / 3.00 m,  11.15 ft / 3.40 m
      - Average freeboard:      12.78 ft / 3.90 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 92.2 %
      - Above water (accommodation/working, high = better): 99.1 %
   Waterplane Area: 10,284 Square feet or 955 Square metres
   Displacement factor (Displacement / loading): 121 %
   Structure weight / hull surface area: 73 lbs/sq ft or 358 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.58
      - Overall: 1.00
   Adequate 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

Above Deck: 75 t
- 25t, Long-Range Wireless
- 150t, Reserve Weight

On Deck: 6 t
- 6t, 2 x 45cm single TTs with two reloads each
- 6t, Reserve Weight

[Jefgte]

Armament-Speed-Protection;

Very heavy armament => recoil 0.95
Poor speed => 17.5kts
good protection

Speed is very low for a 1900 cruiser.
IMO, this is not a scout cruiser but an escort cruiser or a heavy gunboat.

Jef

[Walter]

Very heavy armament => recoil 0.95

Very heavy armament... but should still work as it is stil 0.05 removed from being restricted. It is most likely a combination of going for such a high seaboat rating and a steady gun platform rating, the narrowness of the hull, big guns and the size of the ship.

Poor speed => 17.5kts

Well, in the comments it is indicated that the thought behind that is that "Speed is overrated".

Speed is overrated, especially since more speed requires a belt to cover what the protected deck can't

... what belt?
Also don't you have a protected deck along the entire length of the ship? Would that protected deck not cover any additional space that is required for more machinery if you want a higher speed?

A few other things. 300 rounds per 200mm gun is way too much. Looking around a bit, around 100 seems to be much more logical and 150 really the max, but that is for the bigger ships. The German PC Victoria Louise had a pair of 21cm guns and is about twice the size of your ship. According to navweaps, she carried only 58 rounds per gun. Probably the same can be said of the 152mm guns. I am not sure what you have planned for the future, but 150t reserve is quite a lot and I wonder whether that will be worth it once you get to the point to use it.

[Logi]

Very heavy armament => recoil 0.95

It's actually mostly due to the 150t reserve top-weight. Dropping that weight drops the recoil to 0.85.
As I mentioned, above-deck is the most damaging (to stability, seakeeping, etc.) place to put reserve weight, hence it is designed around having such a weight up top. In reality, this reserve weight will likely be eaten up by boiler changes, superstructure re-fits, etc. but the designers can be comfortable knowing that it will not alter the ship's stability and recoil negatively.

Speed is very low for a 1900 cruiser.

The IJN is a sea-control navy, not an interception navy. Due to the size of the Japanese-controlled Pacific ocean, it is unfeasible for any IJN ship to attempt to intercept enemy ships. Such marginal speed advantages doesn't really help in pursuing enemy ships from long-range.

Rather than having a larger and much more costly ship with higher speed, it's better to have multiple ships which covers a larger area.

... what belt?
Also don't you have a protected deck along the entire length of the ship? Would that protected deck not cover any additional space that is required for more machinery if you want a higher speed?

I meant that if I go to above 17.6 kn - the amount of ship underwater will go above 100% - hence the need for a belt in addition to the deck. I tested moving the other numbers - by far and large machinery is the only meaningful impact on that percentage.
See:

Space   - Hull below water (magazines/engines, low = better): 92.2 %

A few other things. 300 rounds per 200mm gun is way too much.

The 300 rounds per 200mm gun is an accident, I meant for 150 rounds - I'll use the strength for something else.\


xxxx
1 - Takasogo, 2 - Kasagi

KJ3000, Japan Cruiser laid down 1900

Displacement:
   3,000 t light; 3,132 t standard; 3,806 t normal; 4,345 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (393.70 ft / 393.70 ft) x 39.70 ft x (17.06 / 18.87 ft)
   (120.00 m / 120.00 m) x 12.10 m  x (5.20 / 5.75 m)

Armament:
      2 - 7.87" / 200 mm 45.0 cal guns - 242.51lbs / 110.00kg shells, 60 per gun
     Breech loading guns in deck and hoist mounts, 1900 Model
     2 x Single mounts on centreline ends, evenly spread
      4 - 5.98" / 152 mm 45.0 cal guns - 108.07lbs / 49.02kg shells, 150 per gun
     Quick firing guns in deck and hoist mounts, 1900 Model
     4 x Single mounts on centreline, evenly spread
      2 raised mounts
      4 - 2.24" / 57.0 mm 40.0 cal guns - 5.51lbs / 2.50kg shells, 300 per gun
     Quick firing guns in deck mounts, 1898 Model
     4 x Single mounts on sides, evenly spread
      Weight of broadside 939 lbs / 426 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.50" / 38 mm   0.51" / 13 mm      0.51" / 13 mm
   2nd:   1.50" / 38 mm   0.51" / 13 mm      0.51" / 13 mm
   3rd:   0.51" / 13 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 2.95" / 75 mm
   Forecastle: 1.97" / 50 mm  Quarter deck: 1.97" / 50 mm

   - Conning towers: Forward 1.50" / 38 mm, Aft 0.00" / 0 mm

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 5,269 ihp / 3,931 Kw = 17.50 kts
   Range 9,000nm at 10.00 kts
   Bunker at max displacement = 1,213 tons (90% coal)

Complement:
   241 - 314

Cost:
   £0.307 million / $1.229 million

Distribution of weights at normal displacement:
   Armament: 247 tons, 6.5 %
      - Guns: 247 tons, 6.5 %
   Armour: 582 tons, 15.3 %
      - Armament: 36 tons, 1.0 %
      - Armour Deck: 538 tons, 14.1 %
      - Conning Tower: 8 tons, 0.2 %
   Machinery: 815 tons, 21.4 %
   Hull, fittings & equipment: 1,169 tons, 30.7 %
   Fuel, ammunition & stores: 806 tons, 21.2 %
   Miscellaneous weights: 187 tons, 4.9 %
      - On freeboard deck: 12 tons
      - Above deck: 175 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,299 lbs / 1,950 Kg = 17.6 x 7.9 " / 200 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.09
   Metacentric height 1.5 ft / 0.4 m
   Roll period: 13.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.91
   Seaboat quality  (Average = 1.00): 1.51

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.500 / 0.516
   Length to Beam Ratio: 9.92 : 1
   'Natural speed' for length: 19.84 kts
   Power going to wave formation at top speed: 35 %
   Trim (Max stability = 0, Max steadiness = 100): 47
   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 %,  16.40 ft / 5.00 m,  14.76 ft / 4.50 m
      - Forward deck:   35.00 %,  14.76 ft / 4.50 m,  14.76 ft / 4.50 m
      - Aft deck:   30.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Quarter deck:   15.00 %,  9.84 ft / 3.00 m,  11.48 ft / 3.50 m
      - Average freeboard:      12.80 ft / 3.90 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 90.8 %
      - Above water (accommodation/working, high = better): 102.8 %
   Waterplane Area: 10,409 Square feet or 967 Square metres
   Displacement factor (Displacement / loading): 118 %
   Structure weight / hull surface area: 74 lbs/sq ft or 361 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.55
      - Overall: 1.00
   Adequate 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

Above Deck: 175 t
- 25t, Long-Range Wireless
- 150t, Reserve Weight

On Deck: 12 t
- 6t, 2 x 45cm single TTs with two reloads each
- 6t, Reserve Weight

[Logi]

Here's an example of a 1909 refurbishment - assuming I got the 1905 Engine tech and 1906 Oil-Firing Boilers tech.

I replace the machinery and bunkerage - getting 24.27kn and 13,450nm@10kn. That makes the ship quite comparable to the OTL British Weymouth-class (from the Town-class) from ~1910.
I give the ship a bit of bulge for seakeeping, but most everything else I subtract from the reserve top-weight (50t lost).

The total cost of the refurbishment would be:
Base: $0.6,  3 Months
Machinery: $1.63,  0.815 BP
Bulges: $0,  0 BP - light tonnage unaffected
Bunkerage: $0.6065,  0 BP

For a total of: $2.8365,  0.815 BP
-- $0.1635 and 2.185 BP cheaper or $2.56775 by export market

Expected lifespan of these ships without war destroying them is about 20-30 years, so there is still some reserve space for future refurbishments/refits.

KJ3000, Japan Cruiser laid down 1900 (Engine 1909)

Displacement:
   3,000 t light; 3,132 t standard; 3,806 t normal; 4,345 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (393.70 ft / 393.70 ft) x 39.70 ft (Bulges 43.31 ft) x (17.06 / 18.94 ft)
   (120.00 m / 120.00 m) x 12.10 m (Bulges 13.20 m)  x (5.20 / 5.77 m)

Armament:
      2 - 7.87" / 200 mm 45.0 cal guns - 242.51lbs / 110.00kg shells, 60 per gun
     Breech loading guns in deck and hoist mounts, 1900 Model
     2 x Single mounts on centreline ends, evenly spread
      4 - 5.98" / 152 mm 45.0 cal guns - 108.07lbs / 49.02kg shells, 150 per gun
     Quick firing guns in deck and hoist mounts, 1900 Model
     4 x Single mounts on centreline, evenly spread
      2 raised mounts
      4 - 2.24" / 57.0 mm 40.0 cal guns - 5.51lbs / 2.50kg shells, 300 per gun
     Quick firing guns in deck mounts, 1898 Model
     4 x Single mounts on sides, evenly spread
      Weight of broadside 939 lbs / 426 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.50" / 38 mm   0.51" / 13 mm      0.51" / 13 mm
   2nd:   1.50" / 38 mm   0.51" / 13 mm      0.51" / 13 mm
   3rd:   0.51" / 13 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 2.95" / 75 mm
   Forecastle: 1.97" / 50 mm  Quarter deck: 1.97" / 50 mm

   - Conning towers: Forward 1.50" / 38 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 17,931 shp / 13,377 Kw = 24.27 kts
   Range 13,450nm at 10.00 kts
   Bunker at max displacement = 1,213 tons

Complement:
   241 - 314

Cost:
   £0.307 million / $1.229 million

Distribution of weights at normal displacement:
   Armament: 247 tons, 6.5 %
      - Guns: 247 tons, 6.5 %
   Armour: 562 tons, 14.8 %
      - Armament: 36 tons, 1.0 %
      - Armour Deck: 518 tons, 13.6 %
      - Conning Tower: 8 tons, 0.2 %
   Machinery: 815 tons, 21.4 %
   Hull, fittings & equipment: 1,240 tons, 32.6 %
   Fuel, ammunition & stores: 806 tons, 21.2 %
   Miscellaneous weights: 136 tons, 3.6 %
      - On freeboard deck: 11 tons
      - Above deck: 125 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,247 lbs / 1,926 Kg = 17.4 x 7.9 " / 200 mm shells or 1.1 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 1.5 ft / 0.5 m
   Roll period: 14.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.69
   Seaboat quality  (Average = 1.00): 1.20

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.458 / 0.471
   Length to Beam Ratio: 9.09 : 1
   'Natural speed' for length: 19.84 kts
   Power going to wave formation at top speed: 52 %
   Trim (Max stability = 0, Max steadiness = 100): 58
   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 %,  16.40 ft / 5.00 m,  14.76 ft / 4.50 m
      - Forward deck:   35.00 %,  14.76 ft / 4.50 m,  14.76 ft / 4.50 m
      - Aft deck:   30.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Quarter deck:   15.00 %,  9.84 ft / 3.00 m,  11.48 ft / 3.50 m
      - Average freeboard:      12.80 ft / 3.90 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 90.8 %
      - Above water (accommodation/working, high = better): 99.1 %
   Waterplane Area: 10,035 Square feet or 932 Square metres
   Displacement factor (Displacement / loading): 120 %
   Structure weight / hull surface area: 79 lbs/sq ft or 384 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.64
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

Above Deck: 125 t
- 25t, Long-Range Wireless
- 100t, Reserve Weight

On Deck: 12 t
- 6t, 2 x 45cm single TTs with two reloads each
- 5t, Reserve Weight

[snip]

I am curious what the IJN anticipates using as scouts? Given that the KJ3000 design does not have a margin of speed over possible battlelines (or at least the one Chinese battleship, not to mention ACs) and the current destroyers are rather short-legged, I don't see an effective option for scouting. Would it be possible to see a KJ3000 modified with no 200mm guns and whatever additional engines that buys you? I would think pushing a 4x152mm to about 19.5knts (tho higher would be better given there are ACs that push 21knts in the Chinese inventory and faster ones are nearing completion in other navies) would not be to expensive. Even increasing the size of these ships to make the 18.5knts of the Naniwa class might yield more desirable results. While I understand the goal of these cruisers, I think exploring an additional class or sub-class that has the speed necessary to maneuver around an 18knt battleline is worth it, because right now its down to the anti-TB guns on your Battleships to fend off torpedo attack (if the Naniwa class is being phased out as I recall seeing). That seems like a rather risky idea to me.

With regards to what can be done in the future. I think we are going to have to figure out just how viable replacing VTEs with Turbines really is. I recall reading that due to how the shaft runs work, this is really only possible using electric drives.

[Logi]

This is probably what a IJN scout cruiser would look like. It's not likely to be laid down in 1900 or 1901 regardless.

CS4500, IJN Scout Cruiser laid down 1900

Displacement:
   4,500 t light; 4,665 t standard; 5,528 t normal; 6,219 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (446.77 ft / 442.91 ft) x 36.09 ft x (20.67 / 22.77 ft)
   (136.18 m / 135.00 m) x 11.00 m  x (6.30 / 6.94 m)

Armament:
      6 - 5.98" / 152 mm 45.0 cal guns - 108.07lbs / 49.02kg shells, 150 per gun
     Breech loading guns in deck and hoist mounts, 1900 Model
     6 x Single mounts on centreline ends, evenly spread
      4 raised mounts - superfiring
      Weight of broadside 648 lbs / 294 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.50" / 38 mm   0.51" / 13 mm      0.51" / 13 mm

   - Conning towers: Forward 1.50" / 38 mm, Aft 0.00" / 0 mm

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 17,912 ihp / 13,362 Kw = 23.00 kts
   Range 9,000nm at 10.00 kts
   Bunker at max displacement = 1,554 tons (90% coal)

Complement:
   319 - 416

Cost:
   £0.607 million / $2.427 million

Distribution of weights at normal displacement:
   Armament: 172 tons, 3.1 %
      - Guns: 172 tons, 3.1 %
   Armour: 40 tons, 0.7 %
      - Armament: 30 tons, 0.5 %
      - Conning Tower: 10 tons, 0.2 %
   Machinery: 2,771 tons, 50.1 %
   Hull, fittings & equipment: 1,329 tons, 24.0 %
   Fuel, ammunition & stores: 1,028 tons, 18.6 %
   Miscellaneous weights: 188 tons, 3.4 %
      - On freeboard deck: 13 tons
      - Above deck: 175 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,662 lbs / 754 Kg = 15.5 x 6.0 " / 152 mm shells or 0.4 torpedoes
   Stability (Unstable if below 1.00): 1.11
   Metacentric height 1.3 ft / 0.4 m
   Roll period: 13.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.85
   Seaboat quality  (Average = 1.00): 1.21

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.586 / 0.598
   Length to Beam Ratio: 12.27 : 1
   'Natural speed' for length: 21.05 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 58
   Bow angle (Positive = bow angles forward): 16.00 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 %,  13.45 ft / 4.10 m,  12.47 ft / 3.80 m
      - Forward deck:   30.00 %,  12.47 ft / 3.80 m,  11.48 ft / 3.50 m
      - Aft deck:   30.00 %,  11.48 ft / 3.50 m,  11.48 ft / 3.50 m
      - Quarter deck:   20.00 %,  11.48 ft / 3.50 m,  11.48 ft / 3.50 m
      - Average freeboard:      11.91 ft / 3.63 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 172.1 %
      - Above water (accommodation/working, high = better): 80.8 %
   Waterplane Area: 11,534 Square feet or 1,072 Square metres
   Displacement factor (Displacement / loading): 87 %
   Structure weight / hull surface area: 68 lbs/sq ft or 332 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.99
      - Longitudinal: 1.06
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

On freeboard deck: 13t
- 6t, 2 x Single 45mm TT with 2 reloads each
- 7t, Reserve Weight

Above Deck: 175t
- 25t, Long-Range Wireless Set
- 150t, Reserve Weight

[eltf177]

For some reason I'm seeing the Main Battery layout of that Scout Cruiser looking like Atlanta, which doesn't seem right. What is the layout? My guess would be AB/PQ/XY..,

[Walter]

I meant that if I go to above 17.6 kn - the amount of ship underwater will go above 100% - hence the need for a belt in addition to the deck.

Call me stupid, but I don't see the need for a belt in addition to the deck if it goes above 100%. You may call it a 'cruiser' but it really is just a protected cruiser. So why would a belt be needed on a protected cruiser if the machinery/magazine space goes above 100%? ???



One big problem I have with the 1909 refurbishment idea... Adding bulges... okay... but I don't agree with the "Bulges: $0,  0 BP - light tonnage unaffected" bit. You're adding bulges. That means you are adding materials to make those bulges and those materials cost both money and BP and have to be paid for even if the displacement of the ship does not change.

Speaking of the displacement not changing...

The reason why it does not change... I seriously doubt that adding only those minor bulges would cause the BC of the ship to go from 0.5 to 0.458. I think to achieve that kind of BC would require some major reshaping of the entire hull of the ship to achieve that and you have to pay additionally for altering a large part of the 1,169 tons that makes up the Hull, fittings & equipment. It is not just a matter of removing all the hull plates and then putting new ones on. You will have to reshape everything that is underneath the hull plates as well (including the edges of the protected deck which would have to be paid for as well) to be able to alter the BC of the ship like that and still end up with a streamlined hull.

Speaking of the protected deck...

In the original design it is 538 tons and in the refurbishment design it is 518 tons. Even if we ignore the bit about the reshaping of the hull bit I mentioned above, that is the alteration of a small part of the protected deck (i.e. removal) and should be paid for as well.

Few other things I spotted in the rules before I wanted to post this. The trim is altered from 47 to 58 which is not being paid for. Non-functional miscellaneous weight changes from 175 to 125 tons and is not being paid for either.

... so the things you will have to add to your cost list are:
- cost of adding the bulges.
- cost of reshaping the hull so the displacement will end up back at 3000 tons once the bulges are added.
- cost of reshaping the protected deck.
- cost of altering the ship's trim.
- cost of changing non-functional miscellaneous weight.

Sure with several of those, we are talking about a small amount of $ or a small amount of BP and $ but if one were to do that with every ship, that can add up to quite a bit of BPs and $$$ being 'saved'. Considering the work on the hull itself, it probably should be considered to be a reconstruction and not a refurbishment.

[Logi]

Call me stupid, but I don't see the need for a belt in addition to the deck if it goes above 100%. You may call it a 'cruiser' but it really is just a protected cruiser. So why would a belt be needed on a protected cruiser if the machinery/magazine space goes above 100%? ???

The reason is that as given by Kirk.

It's curious how one's personal interpretation works.
To me, a protected deck comes a little above the waterline to a point below the waterline in a turtleback.
To make that work, the "Hull below water " should probable be less than 100%, as more would mean critical things sticking up above that deck.

... so the things you will have to add to your cost list are:
- cost of adding the bulges.
- cost of reshaping the hull so the displacement will end up back at 3000 tons once the bulges are added.
- cost of reshaping the protected deck.
- cost of altering the ship's trim.
- cost of changing non-functional miscellaneous weight.

The bulge is a mistake - I design by displacement and forgot to switch back to Cb before adding the bulge. The reshaping hull and protected deck all follow from that so, not an issue once I correct it. That was a first estimate in any case - 1909 is a far far time away.

For some reason I'm seeing the Main Battery layout of that Scout Cruiser looking like Atlanta, which doesn't seem right. What is the layout? My guess would be AB/PQ/XY..,

That's a mistake.

CS4500, IJN Scout Cruiser laid down 1900

Displacement:
   4,500 t light; 4,665 t standard; 5,525 t normal; 6,213 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (446.77 ft / 442.91 ft) x 38.39 ft x (20.34 / 22.35 ft)
   (136.18 m / 135.00 m) x 11.70 m  x (6.20 / 6.81 m)

Armament:
      6 - 5.98" / 152 mm 45.0 cal guns - 108.07lbs / 49.02kg shells, 150 per gun
     Breech loading guns in deck and hoist mounts, 1900 Model
     6 x Single mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
      Weight of broadside 648 lbs / 294 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   2.05" / 52 mm   0.59" / 15 mm      0.98" / 25 mm

   - Conning towers: Forward 1.97" / 50 mm, Aft 0.00" / 0 mm

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 17,849 ihp / 13,315 Kw = 23.00 kts
   Range 9,000nm at 10.00 kts
   Bunker at max displacement = 1,548 tons (90% coal)

Complement:
   319 - 416

Cost:
   £0.605 million / $2.421 million

Distribution of weights at normal displacement:
   Armament: 172 tons, 3.1 %
      - Guns: 172 tons, 3.1 %
   Armour: 49 tons, 0.9 %
      - Armament: 36 tons, 0.7 %
      - Conning Tower: 13 tons, 0.2 %
   Machinery: 2,761 tons, 50.0 %
   Hull, fittings & equipment: 1,330 tons, 24.1 %
   Fuel, ammunition & stores: 1,025 tons, 18.5 %
   Miscellaneous weights: 187 tons, 3.4 %
      - On freeboard deck: 12 tons
      - Above deck: 175 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,732 lbs / 786 Kg = 16.2 x 6.0 " / 152 mm shells or 0.4 torpedoes
   Stability (Unstable if below 1.00): 1.20
   Metacentric height 1.7 ft / 0.5 m
   Roll period: 12.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.54
   Seaboat quality  (Average = 1.00): 1.21

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.559 / 0.572
   Length to Beam Ratio: 11.54 : 1
   'Natural speed' for length: 21.05 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 58
   Bow angle (Positive = bow angles forward): 16.00 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 %,  13.45 ft / 4.10 m,  11.48 ft / 3.50 m
      - Forward deck:   30.00 %,  11.48 ft / 3.50 m,  11.15 ft / 3.40 m
      - Aft deck:   30.00 %,  11.15 ft / 3.40 m,  11.15 ft / 3.40 m
      - Quarter deck:   20.00 %,  11.15 ft / 3.40 m,  11.48 ft / 3.50 m
      - Average freeboard:      11.46 ft / 3.49 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 171.7 %
      - Above water (accommodation/working, high = better): 80.3 %
   Waterplane Area: 11,968 Square feet or 1,112 Square metres
   Displacement factor (Displacement / loading): 87 %
   Structure weight / hull surface area: 68 lbs/sq ft or 333 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.99
      - Longitudinal: 1.03
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

On freeboard deck: 12t
- 6t, 2 x Single 45mm TT with 2 reloads each
- 6t, Reserve Weight

Above Deck: 175t
- 25t, Long-Range Wireless Set
- 100t, Reserve Weight