new Orange ships and projects

Started by Nobody, September 21, 2009, 03:53:01 AM

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Nobody

First a ship that entered Orange Service November 1916.
Design is P3D's, I only made minor modification to the hull, entered the misc weight distribution and the description.
What do you think? (especially about the misc weight)

Raider 1916, Orange long range destroyer laid down 1916

Displacement:
   1.500 t light; 1.618 t standard; 1.999 t normal; 2.304 t full load

Dimensions: Length overall / water x beam x draught
   393,71 ft / 393,00 ft x 33,00 ft x 13,00 ft (normal load)
   120,00 m / 119,79 m x 10,06 m  x 3,96 m

Armament:
      4 - 6,00" / 152 mm guns in single mounts, 108,00lbs / 48,99kg shells, 1916 Model
     Quick firing guns in deck mounts with hoists
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      8 - 0,40" / 10,2 mm guns (4x2 guns), 0,03lbs / 0,01kg shells, 1916 Model
     Machine guns in deck mounts
     on centreline, all amidships
      2 - 3,00" / 76,2 mm guns in single mounts, 13,50lbs / 6,12kg shells, 1916 Model
     Anti-aircraft guns in deck mounts
     on centreline, evenly spread
   Weight of broadside 459 lbs / 208 kg
   Shells per gun, main battery: 300
   6 - 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      0,50" / 13 mm
   3rd:   0,50" / 13 mm         -               -

Machinery:
   Oil fired boilers, steam turbines plus diesel motors,
   Direct drive, 1 shaft, 23.297 shp / 17.380 Kw = 29,00 kts
      Trial Speed: 29.5Trial Speed: 29.5
   Range 10.000nm at 12,00 kts
      6100 @ 15 kn
   Bunker at max displacement = 685 tons

Complement:
   149 - 194

Cost:
   £0,347 million / $1,389 million

Distribution of weights at normal displacement:
   Armament: 57 tons, 2,9%
   Armour: 14 tons, 0,7%
      - Belts: 0 tons, 0,0%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 14 tons, 0,7%
      - Armour Deck: 0 tons, 0,0%
      - Conning Tower: 0 tons, 0,0%
   Machinery: 796 tons, 39,8%
   Hull, fittings & equipment: 533 tons, 26,6%
   Fuel, ammunition & stores: 499 tons, 25,0%
   Miscellaneous weights: 100 tons, 5,0%
      25 t DD FC
      25 t Radio
      27 t Torpedos (=18)
      10 t depth charges (~30) or mines (~10)
      13 t crew comfort

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     592 lbs / 269 Kg = 5,5 x 6,0 " / 152 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,28
   Metacentric height 1,5 ft / 0,5 m
   Roll period: 11,4 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,81
   Seaboat quality  (Average = 1.00): 1,34

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0,415
   Length to Beam Ratio: 11,91 : 1
   'Natural speed' for length: 19,82 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 53
   Bow angle (Positive = bow angles forward): 1,00 degrees
   Stern overhang: 0,33 ft / 0,10 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      21,80 ft / 6,64 m
      - Forecastle (12%):   17,50 ft / 5,33 m
      - Mid (30%):      17,50 ft / 5,33 m (11,00 ft / 3,35 m aft of break)
      - Quarterdeck (15%):   11,00 ft / 3,35 m
      - Stern:      11,00 ft / 3,35 m
      - Average freeboard:   13,16 ft / 4,01 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 158,2%
      - Above water (accommodation/working, high = better): 83,8%
   Waterplane Area: 7.635 Square feet or 709 Square metres
   Displacement factor (Displacement / loading): 87%
   Structure weight / hull surface area: 35 lbs/sq ft or 171 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,51
      - Longitudinal: 1,06
      - Overall: 0,55
   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
   Good seaboat, rides out heavy weather easily

The Rock Doctor

If one likes surface raiders, it's alright. 

It might be good to have more than one shaft, so you can switch between them when cruising in order to do maintenance.  Won't affect the sim at all, though.


Blooded

To take full advantage of the 6" guns you may need to upgrade to crusier level Fire Control. It will be a bit crowded on deck, something to think about. Doing a rough drawing may help with determining what could fit. You still have a point of strength left as well.
"The black earth was sown with bones and watered with blood... for a harvest of sorrow on the land of Rus'. "
   -The Armament of Igor

Nobody

But a cruiser fire control weights what 100 tons? That 6.7% of the displacement! Anyway I see no way to find that amount of weight without major reconstruction. I won't change that much since these ship were pretty much ready when I came. The single screw is odd though, maybe I should go to 2.

Updated Raider 1916, Orange long range destroyer laid down 1916

Displacement:
   1.500 t light; 1.618 t standard; 1.999 t normal; 2.304 t full load

Dimensions: Length overall / water x beam x draught
   393,71 ft / 393,00 ft x 33,00 ft x 13,00 ft (normal load)
   120,00 m / 119,79 m x 10,06 m  x 3,96 m

Armament:
      4 - 6,00" / 152 mm guns in single mounts, 108,00lbs / 48,99kg shells, 1916 Model
     Quick firing guns in deck mounts with hoists
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      8 - 0,40" / 10,2 mm guns (4x2 guns), 0,03lbs / 0,01kg shells, 1916 Model
     Machine guns in deck mounts
     on centreline, all amidships
      2 - 3,00" / 76,2 mm guns in single mounts, 13,50lbs / 6,12kg shells, 1916 Model
     Anti-aircraft guns in deck mounts
     on centreline, evenly spread
   Weight of broadside 459 lbs / 208 kg
   Shells per gun, main battery: 300
   6 - 21,0" / 533,4 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1,00" / 25 mm   0,40" / 10 mm      0,75" / 19 mm
   3rd:   0,50" / 13 mm         -               -

   - Conning tower: 0,50" / 13 mm

Machinery:
   Oil fired boilers, steam turbines plus diesel motors,
   Direct drive, 2 shafts, 23.297 shp / 17.380 Kw = 29,00 kts
   Range 10.000nm at 12,00 kts
   Bunker at max displacement = 685 tons

Complement:
   149 - 194

Cost:
   £0,347 million / $1,389 million

Distribution of weights at normal displacement:
   Armament: 57 tons, 2,9%
   Armour: 15 tons, 0,7%
      - Belts: 0 tons, 0,0%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 13 tons, 0,6%
      - Armour Deck: 0 tons, 0,0%
      - Conning Tower: 2 tons, 0,1%
   Machinery: 796 tons, 39,8%
   Hull, fittings & equipment: 532 tons, 26,6%
   Fuel, ammunition & stores: 499 tons, 25,0%
   Miscellaneous weights: 100 tons, 5,0%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     605 lbs / 274 Kg = 5,6 x 6,0 " / 152 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,29
   Metacentric height 1,5 ft / 0,5 m
   Roll period: 11,3 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,81
   Seaboat quality  (Average = 1.00): 1,34

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0,415
   Length to Beam Ratio: 11,91 : 1
   'Natural speed' for length: 19,82 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 53
   Bow angle (Positive = bow angles forward): 1,00 degrees
   Stern overhang: 0,33 ft / 0,10 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      21,80 ft / 6,64 m
      - Forecastle (12%):   17,50 ft / 5,33 m
      - Mid (30%):      17,50 ft / 5,33 m (11,00 ft / 3,35 m aft of break)
      - Quarterdeck (15%):   11,00 ft / 3,35 m
      - Stern:      11,00 ft / 3,35 m
      - Average freeboard:   13,16 ft / 4,01 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 158,2%
      - Above water (accommodation/working, high = better): 88,4%
   Waterplane Area: 8.058 Square feet or 749 Square metres
   Displacement factor (Displacement / loading): 87%
   Structure weight / hull surface area: 35 lbs/sq ft or 169 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,51
      - Longitudinal: 1,06
      - Overall: 0,54
   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
   Good seaboat, rides out heavy weather easily

Trial Speed: 29.5

6100 @ 15 kn

Misc 100 t
25 t DD FC
25 t Radio
27 t Torpedos (=18)
10 t depth charges (~30) or mines (~10)
13 t crew comfort

Jefgte

QuoteSeaboat quality  (Average = 1.00): 1,34
...

- Stem:      21,80 ft / 6,64 m
     - Forecastle (12%):   17,50 ft / 5,33 m
     - Mid (30%):      17,50 ft / 5,33 m (11,00 ft / 3,35 m aft of break)
     - Quarterdeck (15%):   11,00 ft / 3,35 m
     - Stern:      11,00 ft / 3,35 m


You could perhaps economise weight if you reduce freeboard - 1.34 for seaboat quality could be reduce.


;)
"You French are fighting for money, while we English are fighting for honor!"
"Everyone is fighting for what they miss. "
Surcouf

Nobody

Quote from: Jefgte on September 21, 2009, 08:59:31 AM
You could perhaps economise weight if you reduce freeboard - 1.34 for seaboat quality could be reduced.

But that reduces steadiness as well (below 70).
That might be a advice for my next (own) destroyer design, but not for this one.

Nobody

Next up is a little pet project of mine which I hope to build to civil/mercantile standard.

Its an exploration/science ship for rough water usage. It carries 2 "Barkassen" which can act independently from their mothership for limited periods (a few days) in oder to investigate a river further upstream or just to get ashore without a suitable harbor.
They use piston-steam-engines for better maneuverability and are mostly coal fired to allow the use of firewood if necessary.

Explorer, Orange Sience vessel laid down 1917 (Engine 1916)

Displacement:
   2.560 t light; 2.640 t standard; 3.697 t normal; 4.544 t full load

Dimensions: Length overall / water x beam x draught
   393,79 ft / 383,86 ft x 59,06 ft x 9,84 ft (normal load)
   120,03 m / 117,00 m x 18,00 m  x 3,00 m

Armament:
      2 - 3,46" / 88,0 mm guns in single mounts, 20,79lbs / 9,43kg shells, 1917 Model
     Breech loading guns in deck mounts
     on centreline ends, evenly spread
      4 - 0,31" / 8,0 mm guns in single mounts, 0,02lbs / 0,01kg shells, 1917 Model
     Machine guns in deck mounts
     on side, all amidships, all raised mounts - superfiring
   Weight of broadside 42 lbs / 19 kg
   Shells per gun, main battery: 250

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   0,20" / 5 mm   383,86 ft / 117,00 m   13,12 ft / 4,00 m
   Ends:   0,16" / 4 mm     0,00 ft / 0,00 m   9,84 ft / 3,00 m
   Upper:   0,08" / 2 mm   383,86 ft / 117,00 m   9,84 ft / 3,00 m
     Main Belt covers 154% of normal length

   - Torpedo Bulkhead:
      0,31" / 8 mm   295,28 ft / 90,00 m   11,48 ft / 3,50 m

   - Armour deck: 0,39" / 10 mm

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 6.800 ihp / 5.073 Kw = 18,28 kts
   Range 11.890nm at 12,00 kts
   Bunker at max displacement = 1.904 tons (80% coal)

Complement:
   236 - 308

Cost:
   £0,282 million / $1,127 million

Distribution of weights at normal displacement:
   Armament: 5 tons, 0,1%
   Armour: 206 tons, 5,6%
      - Belts: 48 tons, 1,3%
      - Torpedo bulkhead: 40 tons, 1,1%
      - Armament: 0 tons, 0,0%
      - Armour Deck: 119 tons, 3,2%
      - Conning Tower: 0 tons, 0,0%
   Machinery: 436 tons, 11,8%
   Hull, fittings & equipment: 1.313 tons, 35,5%
   Fuel, ammunition & stores: 1.138 tons, 30,8%
   Miscellaneous weights: 600 tons, 16,2%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     10.828 lbs / 4.912 Kg = 520,8 x 3,5 " / 88 mm shells or 2,8 torpedoes
   Stability (Unstable if below 1.00): 1,54
   Metacentric height 4,7 ft / 1,4 m
   Roll period: 11,4 seconds
   Steadiness   - As gun platform (Average = 50 %): 72 %
         - Recoil effect (Restricted arc if above 1.00): 0,00
   Seaboat quality  (Average = 1.00): 1,64

Hull form characteristics:
   Hull has raised forecastle, raised quarterdeck
   Block coefficient: 0,580
   Length to Beam Ratio: 6,50 : 1
   'Natural speed' for length: 19,59 kts
   Power going to wave formation at top speed: 42 %
   Trim (Max stability = 0, Max steadiness = 100): 44
   Bow angle (Positive = bow angles forward): 15,00 degrees
   Stern overhang: 4,13 ft / 1,26 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      21,65 ft / 6,60 m
      - Forecastle (20%):   18,04 ft / 5,50 m (14,44 ft / 4,40 m aft of break)
      - Mid (50%):      13,78 ft / 4,20 m
      - Quarterdeck (15%):   14,11 ft / 4,30 m (13,78 ft / 4,20 m before break)
      - Stern:      16,40 ft / 5,00 m
      - Average freeboard:   15,24 ft / 4,65 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 87,9%
      - Above water (accommodation/working, high = better): 183,0%
   Waterplane Area: 16.272 Square feet or 1.512 Square metres
   Displacement factor (Displacement / loading): 215%
   Structure weight / hull surface area: 62 lbs/sq ft or 302 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,97
      - Longitudinal: 1,29
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Armor represents reinforced hull and bottom, to allow usage in treacherous waters (artic, coral reefs etc.)

misc. includes
   2 long range radio sets (=50 t)
   labs
   workshops
   expedition equipment
   medical facilities
   leisure room
   library
   2 Barkassen (40 t each, total of 160 t including derricks)


Barkasse, Orange Barkasse laid down 1917 (Engine 1916)

Displacement:
   40 t light; 41 t standard; 45 t normal; 49 t full load

Dimensions: Length overall / water x beam x draught
   85,31 ft / 78,74 ft x 13,12 ft x 2,72 ft (normal load)
   26,00 m / 24,00 m x 4,00 m  x 0,83 m

Armament:
      1 - 0,31" / 8,0 mm guns in single mounts, 0,02lbs / 0,01kg shells, 1917 Model
     Machine gun in deck mount
     on centreline forward
   Weight of broadside 0 lbs / 0 kg
   Shells per gun, main battery: 1.500

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 1 shaft, 300 ihp / 224 Kw = 14,14 kts
   Range 640nm at 11,00 kts
   Bunker at max displacement = 8 tons (100% coal)

Complement:
   8 - 11

Cost:
   £0,008 million / $0,030 million

Distribution of weights at normal displacement:
   Armament: 0 tons, 0,0%
   Machinery: 20 tons, 43,1%
   Hull, fittings & equipment: 20 tons, 44,5%
   Fuel, ammunition & stores: 6 tons, 12,3%
   Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     45 lbs / 20 Kg = 2.880,6 x 0,3 " / 8 mm shells or 0,1 torpedoes
   Stability (Unstable if below 1.00): 1,24
   Metacentric height 0,4 ft / 0,1 m
   Roll period: 9,3 seconds
   Steadiness   - As gun platform (Average = 50 %): 58 %
         - Recoil effect (Restricted arc if above 1.00): 0,00
   Seaboat quality  (Average = 1.00): 1,16

Hull form characteristics:
   Hull has raised forecastle, raised quarterdeck
   Block coefficient: 0,565
   Length to Beam Ratio: 6,00 : 1
   'Natural speed' for length: 8,87 kts
   Power going to wave formation at top speed: 69 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 20,00 degrees
   Stern overhang: 2,99 ft / 0,91 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      9,84 ft / 3,00 m
      - Forecastle (20%):   7,87 ft / 2,40 m (5,91 ft / 1,80 m aft of break)
      - Mid (50%):      5,25 ft / 1,60 m
      - Quarterdeck (15%):   6,56 ft / 2,00 m (5,91 ft / 1,80 m before break)
      - Stern:      7,22 ft / 2,20 m
      - Average freeboard:   6,39 ft / 1,95 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 139,8%
      - Above water (accommodation/working, high = better): 94,4%
   Waterplane Area: 711 Square feet or 66 Square metres
   Displacement factor (Displacement / loading): 116%
   Structure weight / hull surface area: 14 lbs/sq ft or 71 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,78
      - Longitudinal: 8,88
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate

What do you think, any suggestions on how to distribute the misc?

Walter

Not sure how far south you're planning to go but I don't think that the tinfoil armor is going to be of any use. Maybe you should go for something like the Kainan Maru which I built to military standards as it really isn't that much to set aside (unless you plan to build a dozen of them).

http://www.navalism.org/index.php?topic=1801.msg18973#msg18973

(come to think of it, I still need to dump this design into the encyclopedia)

Nobody

Well, it's not really supposed to be an Icebreaker and even if - an additional 10 to 20 mm should be enough (approx twice as thick).
I admit it became a bit thin but I had to shave it of to free some tonnage for the launches. Besides I coated my entire hull (from bottom to rail) with armor, assuming they distribute it a bit more adequately, I think it should be sufficient.

Walter

QuoteWell, it's not really supposed to be an Icebreaker and even if - an additional 10 to 20 mm should be enough
Neither is the Kainan Maru (would have used a higher HS then), but she can nudge the ice a bit without ruining the hull. :)
QuoteBesides I coated my entire hull (from bottom to rail) with armor
QuoteEnds:   0,16" / 4 mm     0,00 ft / 0,00 m   9,84 ft / 3,00 m
Yes, I can see that. ;D

Nobody

#10
The main and upper belt are 117 m long - same as waterline length and together they are 7 m heigh with 3 m draft and an midship freebord of 4.2 m. That's indeed the entire hull for me.

Anyway this does not help with the misc weight distribution and the question whether I can build it to civil standards. Should there misc tonnage remain unused then I would be happy to reinvest it to a little more armor.

The Rock Doctor

The usual rule of thumb for civilian vessels, is that armament + armor is less than 2%.

While I can see the logic of using belt armor to sim the reinforced hull - I've done it with my salvage tugs - I'm not sure why deck armor is necessary.  Delete that and I think I'd be okay with her being built to merchie standards.

Nobody

The deck armor is supposed to represent the reinforced double bottom of the ship, so that (light) ground contact is not a serious problem.

Alternatively I could try to get higher composite hull strength - and no armor.

maddox

For ground contact you need only longitudal strenght, for a large ship like this to be "beachable" you need a stronger than normal hull. No rules are set on it, but with an increased Composite Strength, it's an option of course. 
It also gives the option to load more stuff on it in certain circumstances ;)

QuoteExplorateur, French Science vessel laid down 1919 (Engine 1912)

Displacement:
   2.538 t light; 2.616 t standard; 3.610 t normal; 4.405 t full load

Dimensions: Length overall / water x beam x draught
   393,70 ft / 390,42 ft x 59,06 ft x 9,84 ft (normal load)
   120,00 m / 119,00 m x 18,00 m  x 3,00 m

Armament:
      2 - 2,76" / 70,0 mm guns in single mounts, 11,02lbs / 5,00kg shells, 1912 Model
     Breech loading guns in deck mounts
     on side, all amidships
      4 - 0,98" / 25,0 mm guns in single mounts, 0,48lbs / 0,22kg shells, 1910 Model
     Machine guns in deck mounts
     on side ends, evenly spread, all raised mounts - superfiring
   Weight of broadside 24 lbs / 11 kg
   Shells per gun, main battery: 400

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Ends:   1,50" / 38 mm     70,26 ft / 21,42 m   16,25 ft / 4,95 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,50" / 13 mm   0,50" / 13 mm            -
   2nd:   0,50" / 13 mm         -               -

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 6.231 ihp / 4.648 Kw = 18,00 kts
   Range 12.000nm at 12,00 kts
   Bunker at max displacement = 1.789 tons (50% coal)

Complement:
   232 - 302

Cost:
   £0,319 million / $1,276 million

Distribution of weights at normal displacement:
   Armament: 3 tons, 0,1%
   Armour: 66 tons, 1,8%
      - Belts: 63 tons, 1,8%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 2 tons, 0,1%
      - Armour Deck: 0 tons, 0,0%
      - Conning Tower: 0 tons, 0,0%
   Machinery: 393 tons, 10,9%
   Hull, fittings & equipment: 1.347 tons, 37,3%
   Fuel, ammunition & stores: 1.072 tons, 29,7%
   Miscellaneous weights: 730 tons, 20,2%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     9.989 lbs / 4.531 Kg = 954,4 x 2,8 " / 70 mm shells or 2,4 torpedoes
   Stability (Unstable if below 1.00): 1,28
   Metacentric height 3,5 ft / 1,1 m
   Roll period: 13,2 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0,00
   Seaboat quality  (Average = 1.00): 1,59

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,557
   Length to Beam Ratio: 6,61 : 1
   'Natural speed' for length: 19,76 kts
   Power going to wave formation at top speed: 40 %
   Trim (Max stability = 0, Max steadiness = 100): 63
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 3,28 ft / 1,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      22,97 ft / 7,00 m
      - Forecastle (18%):   19,69 ft / 6,00 m
      - Mid (60%):      13,12 ft / 4,00 m
      - Quarterdeck (0%):   13,12 ft / 4,00 m
      - Stern:      13,12 ft / 4,00 m
      - Average freeboard:   15,92 ft / 4,85 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 59,1%
      - Above water (accommodation/working, high = better): 196,8%
   Waterplane Area: 16.193 Square feet or 1.504 Square metres
   Displacement factor (Displacement / loading): 225%
   Structure weight / hull surface area: 63 lbs/sq ft or 307 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,97
      - Longitudinal: 1,31
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

The 70mm guns got weathershields,

The armored bow can double for icebreaker duty.

The mixed firing gives the option to use any solid or liquid fuel.

The very high steadiness, stability and weatherly hull makes for a better observation platform.

Nobody

Since my "mini BB" became quite big I thought about a smaller monitor with the same armament.
I ended up with a nice 12kt "destroyer" (0.5 overall & cross-section) which needed a 170 m armor belt to cover its magazines (on a 120 m hull!). After switching to a single 16" quad turret, I came up with a more reasonable design. Even if this ship has little chance of being built, it was a good practice.
What do you think?

Monitor 1917, Orange Monitor laid down 1917 (Engine 1916)

Displacement:
   13.000 t light; 13.915 t standard; 14.869 t normal; 15.633 t full load

Dimensions: Length overall / water x beam x draught
   393,70 ft / 393,70 ft x 68,90 ft (Bulges 78,74 ft) x 27,89 ft (normal load)
   120,00 m / 120,00 m x 21,00 m (Bulges 24,00 m)  x 8,50 m

Armament:
      4 - 16,00" / 406 mm guns (1x4 guns), 2.116,44lbs / 960,00kg shells, 1916 Model
     Breech loading guns in a turret (on a barbette)
     on centreline forward
      6 - 6,00" / 152 mm guns (3x2 guns), 105,82lbs / 48,00kg shells, 1912 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, majority aft, 2 raised mounts - superfiring
      12 - 4,00" / 102 mm guns (6x2 guns), 30,86lbs / 14,00kg shells, 1912 Model
     Breech loading guns in deck mounts with hoists
     on side, all amidships
      8 - 1,00" / 25,4 mm guns in single mounts, 0,50lbs / 0,23kg shells, 1917 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
      4 - 0,50" / 12,7 mm guns in single mounts, 0,06lbs / 0,03kg shells, 1917 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 9.475 lbs / 4.298 kg
   Shells per gun, main battery: 115

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   15,0" / 380 mm   262,47 ft / 80,00 m   10,50 ft / 3,20 m
   Ends:   5,91" / 150 mm   131,23 ft / 40,00 m   8,20 ft / 2,50 m
   Upper:   5,91" / 150 mm   262,47 ft / 80,00 m   4,92 ft / 1,50 m
     Main Belt covers 103% of normal length

   - Torpedo Bulkhead and Bulges:
      1,57" / 40 mm   262,47 ft / 80,00 m   29,53 ft / 9,00 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   15,7" / 400 mm   8,66" / 220 mm      15,0" / 380 mm
   2nd:   5,91" / 150 mm   3,15" / 80 mm      5,91" / 150 mm
   3rd:   1,97" / 50 mm   1,18" / 30 mm      1,97" / 50 mm

   - Armour deck: 4,72" / 120 mm, Conning tower: 15,75" / 400 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 2 shafts, 12.938 shp / 9.651 Kw = 17,50 kts
   Range 4.195nm at 15,00 kts
   Bunker at max displacement = 1.717 tons

Complement:
   673 - 875

Cost:
   £2,712 million / $10,847 million

Distribution of weights at normal displacement:
   Armament: 1.154 tons, 7,8%
   Armour: 5.791 tons, 38,9%
      - Belts: 2.387 tons, 16,1%
      - Torpedo bulkhead: 452 tons, 3,0%
      - Armament: 1.009 tons, 6,8%
      - Armour Deck: 1.737 tons, 11,7%
      - Conning Tower: 205 tons, 1,4%
   Machinery: 482 tons, 3,2%
   Hull, fittings & equipment: 5.239 tons, 35,2%
   Fuel, ammunition & stores: 1.870 tons, 12,6%
   Miscellaneous weights: 335 tons, 2,3%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     14.704 lbs / 6.669 Kg = 7,2 x 16,0 " / 406 mm shells or 3,3 torpedoes
   Stability (Unstable if below 1.00): 1,06
   Metacentric height 3,2 ft / 1,0 m
   Roll period: 18,6 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0,50
   Seaboat quality  (Average = 1.00): 1,01

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,602
   Length to Beam Ratio: 5,00 : 1
   'Natural speed' for length: 19,84 kts
   Power going to wave formation at top speed: 48 %
   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 (% = measuring location as a percentage of overall length):
      - Stem:      17,06 ft / 5,20 m
      - Forecastle (20%):   11,81 ft / 3,60 m
      - Mid (52%):      9,84 ft / 3,00 m
      - Quarterdeck (15%):   9,84 ft / 3,00 m
      - Stern:      11,48 ft / 3,50 m
      - Average freeboard:   11,09 ft / 3,38 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 101,6%
      - Above water (accommodation/working, high = better): 58,1%
   Waterplane Area: 19.876 Square feet or 1.847 Square metres
   Displacement factor (Displacement / loading): 91%
   Structure weight / hull surface area: 178 lbs/sq ft or 869 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,91
      - Longitudinal: 2,16
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is cramped