French destroyer

Started by maddox, December 18, 2008, 06:57:14 AM

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maddox

Working on the aquisition of 1.5Ktons DD tech

QuoteLion, French Heavy TB laid down 1916 (Engine 1912)

Displacement:
   1.497 t light; 1.552 t standard; 1.730 t normal; 1.872 t full load

Dimensions: Length overall / water x beam x draught
   388,45 ft / 387,14 ft x 34,12 ft x 11,81 ft (normal load)
   118,40 m / 118,00 m x 10,40 m  x 3,60 m

Armament:
      2 - 5,51" / 140 mm guns in single mounts, 92,59lbs / 42,00kg shells, 1916 Model
     Quick firing guns in deck mounts
     on centreline, all forward, 1 raised mount
      4 - 2,76" / 70,0 mm guns in single mounts, 11,02lbs / 5,00kg shells, 1916 Model
     Quick firing guns in deck mounts
     on side, evenly spread, 2 raised mounts
   Weight of broadside 229 lbs / 104 kg
   Shells per gun, main battery: 150
   9 - 20,0" / 508 mm above water torpedoes

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 35.989 shp / 26.848 Kw = 33,00 kts
   Range 3.000nm at 14,00 kts
   Bunker at max displacement = 320 tons

Complement:
   133 - 174

Cost:
   £0,345 million / $1,381 million

Distribution of weights at normal displacement:
   Armament: 26 tons, 1,5%
   Machinery: 976 tons, 56,4%
   Hull, fittings & equipment: 455 tons, 26,3%
   Fuel, ammunition & stores: 233 tons, 13,5%
   Miscellaneous weights: 40 tons, 2,3%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     403 lbs / 183 Kg = 4,8 x 5,5 " / 140 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,46
   Metacentric height 1,9 ft / 0,6 m
   Roll period: 10,4 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,18
   Seaboat quality  (Average = 1.00): 1,04

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,388
   Length to Beam Ratio: 11,35 : 1
   'Natural speed' for length: 19,68 kts
   Power going to wave formation at top speed: 61 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   Bow angle (Positive = bow angles forward): -5,00 degrees
   Stern overhang: 1,31 ft / 0,40 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      15,09 ft / 4,60 m
      - Forecastle (15%):   15,09 ft / 4,60 m
      - Mid (27%):      15,09 ft / 4,60 m
      - Quarterdeck (15%):   10,17 ft / 3,10 m
      - Stern:      9,84 ft / 3,00 m
      - Average freeboard:   12,90 ft / 3,93 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 196,2%
      - Above water (accommodation/working, high = better): 86,7%
   Waterplane Area: 8.081 Square feet or 751 Square metres
   Displacement factor (Displacement / loading): 55%
   Structure weight / hull surface area: 32 lbs/sq ft or 154 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,51
      - Longitudinal: 1,01
      - 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

the misc weight is divided:
-crew comfort messures
-marconi instalation
-18 tons of torpedo's in the tubes

2 depth charge racks with 10  charges each 

Jefgte

2x140 = big guns for a DD

Why use 4 x small 70mm?
1 is perhaps enough
& then, 3x140

If you want 1500t, adjust the draught in mm (3.6072m)
2 turbines x18.000shp give 33.01kts


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

maddox

I'll give it a go Jef.

Why 140mm.  Simple, it the bread and butter gun in the Nverse Marine Nationale.  And yes, 3 140mm's are better than 2.

The 4 70mm guns. It sounded better than 2  :)


QuoteLion, French Destroyer laid down 1916 (Engine 1912)

Displacement:
   1.499 t light; 1.559 t standard; 1.737 t normal; 1.879 t full load

Dimensions: Length overall / water x beam x draught
   388,45 ft / 387,14 ft x 34,12 ft x 11,86 ft (normal load)
   118,40 m / 118,00 m x 10,40 m  x 3,62 m

Armament:
      3 - 5,51" / 140 mm guns (2 mounts), 92,59lbs / 42,00kg shells, 1916 Model
     Quick firing guns in deck mounts
     on centreline ends, evenly spread, 1 raised mount
      1 - 2,76" / 70,0 mm guns in single mounts, 11,02lbs / 5,00kg shells, 1916 Model
     Quick firing gun in deck mount
     on centreline aft, 1 raised gun
   Weight of broadside 289 lbs / 131 kg
   Shells per gun, main battery: 150
   9 - 20,0" / 508 mm above water torpedoes

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 36.085 shp / 26.920 Kw = 33,00 kts
   Range 3.000nm at 14,00 kts
   Bunker at max displacement = 321 tons

Complement:
   133 - 174

Cost:
   £0,353 million / $1,412 million

Distribution of weights at normal displacement:
   Armament: 33 tons, 1,9%
   Machinery: 970 tons, 55,8%
   Hull, fittings & equipment: 457 tons, 26,3%
   Fuel, ammunition & stores: 237 tons, 13,7%
   Miscellaneous weights: 40 tons, 2,3%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     398 lbs / 181 Kg = 4,8 x 5,5 " / 140 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,46
   Metacentric height 1,9 ft / 0,6 m
   Roll period: 10,4 seconds
   Steadiness   - As gun platform (Average = 50 %): 72 %
         - Recoil effect (Restricted arc if above 1.00): 0,22
   Seaboat quality  (Average = 1.00): 1,04

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,388
   Length to Beam Ratio: 11,35 : 1
   'Natural speed' for length: 19,68 kts
   Power going to wave formation at top speed: 61 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   Bow angle (Positive = bow angles forward): -5,00 degrees
   Stern overhang: 1,31 ft / 0,40 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      15,09 ft / 4,60 m
      - Forecastle (15%):   15,09 ft / 4,60 m
      - Mid (27%):      15,09 ft / 4,60 m
      - Quarterdeck (15%):   10,17 ft / 3,10 m
      - Stern:      9,84 ft / 3,00 m
      - Average freeboard:   12,90 ft / 3,93 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 197,1%
      - Above water (accommodation/working, high = better): 86,7%
   Waterplane Area: 8.081 Square feet or 751 Square metres
   Displacement factor (Displacement / loading): 55%
   Structure weight / hull surface area: 32 lbs/sq ft or 155 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 1,04
      - 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

the misc weight is divided:
-crew comfort messures
-marconi instalation
-18 tons of torpedo's in the tubes

2 depth charge racks with 10  charges each

Guinness

Don't 20" torpedoes only cost 1t a piece?

The Rock Doctor

I'm not sure that anybody's up to machining their parts to a tenth of a millimetre right now.  I never go to more than two decimal places in my dimensions.

I've contemplated 140mm guns on such ships as well, bearing in mind that I don't have operational experience to suggest it's a bad idea.

The design is otherwise very solid and capable.

maddox

@ Guinnes.  Anticipating on this technology.

Quote1913: (+5) 15000@26, 10000@30,7000@35, 200kg warhead (+1), 2t, 21"
Will adapt the tube diameter.

Rocky, the increased draught can be attributed to a sleightly heavier load.  :), not an issue in drawings, but just  a result of "real life" situations.
And machining to 0.05mm was not impossible "this" that day and age, just not don on rivetted ship hulls.

But why is the use of 140mm guns on large DD's unsuitable? France used 130 and 138mm guns on their larger DD's, and in much greater number.

But I changed a few small things.
Weathershielded guns. Crew comfort and a bit safer to handle the heavy shells.
21" tubes and not 20"

QuoteLion, French Destroyer laid down 1916 (Engine 1912)

Displacement:
   1.499 t light; 1.559 t standard; 1.737 t normal; 1.879 t full load

Dimensions: Length overall / water x beam x draught
   388,45 ft / 387,14 ft x 34,12 ft x 11,86 ft (normal load)
   118,40 m / 118,00 m x 10,40 m  x 3,62 m

Armament:
      3 - 5,51" / 140 mm guns (2 mounts), 92,59lbs / 42,00kg shells, 1916 Model
     Quick firing guns in deck mounts
     on centreline ends, evenly spread, 1 raised mount
      1 - 2,76" / 70,0 mm guns in single mounts, 11,02lbs / 5,00kg shells, 1916 Model
     Quick firing gun in deck mount
     on centreline aft, 1 raised gun
   Weight of broadside 289 lbs / 131 kg
   Shells per gun, main battery: 150
   9 - 21,0" / 533,4 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,31" / 8 mm   0,31" / 8 mm            -
   2nd:   0,31" / 8 mm   0,31" / 8 mm            -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 36.085 shp / 26.920 Kw = 33,00 kts
   Range 3.000nm at 14,00 kts
   Bunker at max displacement = 321 tons

Complement:
   133 - 174

Cost:
   £0,353 million / $1,411 million

Distribution of weights at normal displacement:
   Armament: 33 tons, 1,9%
   Armour: 5 tons, 0,3%
      - Belts: 0 tons, 0,0%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 5 tons, 0,3%
      - Armour Deck: 0 tons, 0,0%
      - Conning Tower: 0 tons, 0,0%
   Machinery: 969 tons, 55,8%
   Hull, fittings & equipment: 453 tons, 26,1%
   Fuel, ammunition & stores: 237 tons, 13,7%
   Miscellaneous weights: 40 tons, 2,3%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     394 lbs / 179 Kg = 4,7 x 5,5 " / 140 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,45
   Metacentric height 1,9 ft / 0,6 m
   Roll period: 10,4 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,22
   Seaboat quality  (Average = 1.00): 1,04

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,388
   Length to Beam Ratio: 11,35 : 1
   'Natural speed' for length: 19,68 kts
   Power going to wave formation at top speed: 61 %
   Trim (Max stability = 0, Max steadiness = 100): 68
   Bow angle (Positive = bow angles forward): -5,00 degrees
   Stern overhang: 1,31 ft / 0,40 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      15,09 ft / 4,60 m
      - Forecastle (15%):   15,09 ft / 4,60 m
      - Mid (27%):      15,09 ft / 4,60 m
      - Quarterdeck (15%):   10,17 ft / 3,10 m
      - Stern:      9,84 ft / 3,00 m
      - Average freeboard:   12,90 ft / 3,93 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 196,9%
      - Above water (accommodation/working, high = better): 80,1%
   Waterplane Area: 8.081 Square feet or 751 Square metres
   Displacement factor (Displacement / loading): 55%
   Structure weight / hull surface area: 31 lbs/sq ft or 153 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 1,03
      - Overall: 0,53
   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

the misc weight is divided:
-crew comfort messures
-marconi instalation
-18 tons of torpedo's in the tubes

2 depth charge racks with 10  charges each

Jefgte

QuoteI'm not sure that anybody's up to machining their parts to a tenth of a millimetre right now.  I never go to more than two decimal places in my dimensions.

Round numbers are just made to have a better reading.

I prefer to read 1500t than 1497t & 36 000shp than 35972shp

& I imagine the command to the factory:
- 2x18 000shp turbines
not, 2x17 986 shp turbines

So, I wrote " If you want..."
That is not an obligation.

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

Borys

My car has a 1997cm engine, but everybody calls it "2 litres" anyway ...
Borys
NEDS - Not Enough Deck Space for all those guns and torpedos;
Bambi must DIE!

maddox

Hey, I didn't get a NEDS from you Borys.

Jefgte

QuoteMy car has a 1997cm engine, but everybody calls it "2 litres" anyway ...

more taxes for 2 litres not for 1999.9cm

or

because engineers do not count just. That's not the first time...& not the last

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

The Rock Doctor

Is the 2x1 and 1x1 layout of the three-gunned ship intentional or an oversight?

No hoists?

maddox

2 mounts -3 guns is an oversight oversight. 
Mount and hoists are too heavy for the 33kts ship.

On the other hand. 32 kts is still bloody fast with a reasonbable seakeeping.

Lion, French Destroyer laid down 1916 (Engine 1912)

QuoteDisplacement:
   1.499 t light; 1.559 t standard; 1.737 t normal; 1.879 t full load

Dimensions: Length overall / water x beam x draught
   388,45 ft / 387,14 ft x 34,12 ft x 11,86 ft (normal load)
   118,40 m / 118,00 m x 10,40 m  x 3,62 m

Armament:
      3 - 5,51" / 140 mm guns in single mounts, 92,59lbs / 42,00kg shells, 1916 Model
     Quick firing guns in deck mounts with hoists
     on centreline ends, majority forward, 1 raised mount
      1 - 2,76" / 70,0 mm guns in single mounts, 11,02lbs / 5,00kg shells, 1916 Model
     Quick firing gun in deck mount
     on centreline aft, 1 raised gun
   Weight of broadside 289 lbs / 131 kg
   Shells per gun, main battery: 150
   9 - 21,0" / 533,4 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,31" / 8 mm   0,31" / 8 mm            -
   2nd:   0,31" / 8 mm   0,31" / 8 mm            -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 31.764 shp / 23.696 Kw = 32,00 kts
   Range 3.000nm at 14,00 kts
   Bunker at max displacement = 321 tons

Complement:
   133 - 174

Cost:
   £0,341 million / $1,365 million

Distribution of weights at normal displacement:
   Armament: 33 tons, 1,9%
   Armour: 5 tons, 0,3%
      - Belts: 0 tons, 0,0%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 5 tons, 0,3%
      - Armour Deck: 0 tons, 0,0%
      - Conning Tower: 0 tons, 0,0%
   Machinery: 919 tons, 52,9%
   Hull, fittings & equipment: 503 tons, 29,0%
   Fuel, ammunition & stores: 237 tons, 13,7%
   Miscellaneous weights: 40 tons, 2,3%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     421 lbs / 191 Kg = 5,0 x 5,5 " / 140 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,29
   Metacentric height 1,6 ft / 0,5 m
   Roll period: 11,4 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,48
   Seaboat quality  (Average = 1.00): 1,03

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,388
   Length to Beam Ratio: 11,35 : 1
   'Natural speed' for length: 19,68 kts
   Power going to wave formation at top speed: 60 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   Bow angle (Positive = bow angles forward): -5,00 degrees
   Stern overhang: 1,31 ft / 0,40 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      15,09 ft / 4,60 m
      - Forecastle (15%):   14,76 ft / 4,50 m
      - Mid (27%):      14,76 ft / 4,50 m
      - Quarterdeck (15%):   10,17 ft / 3,10 m
      - Stern:      9,84 ft / 3,00 m
      - Average freeboard:   12,73 ft / 3,88 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 187,7%
      - Above water (accommodation/working, high = better): 78,9%
   Waterplane Area: 8.081 Square feet or 751 Square metres
   Displacement factor (Displacement / loading): 61%
   Structure weight / hull surface area: 35 lbs/sq ft or 172 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,52
      - Longitudinal: 1,02
      - Overall: 0,56
   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

the misc weight is divided:
-crew comfort messures
-marconi instalation
-18 tons of torpedo's in the tubes

2 depth charge racks with 10  charges each

maddox

After realising that France first has to digest the 1Kton technology before working on the 1.5Ktons destroyers, I started playing around in Springsharp.

Except for the smaller gunsize, and the lower survivability, these ships do the same as the much more expensive Lions.

QuoteTigre, French Destroyer laid down 1915 (Engine 1912)

Displacement:
   998 t light; 1.035 t standard; 1.181 t normal; 1.297 t full load

Dimensions: Length overall / water x beam x draught
   364,17 ft / 360,89 ft x 29,53 ft x 9,84 ft (normal load)
   111,00 m / 110,00 m x 9,00 m  x 3,00 m

Armament:
      4 - 4,13" / 105 mm guns in single mounts, 39,68lbs / 18,00kg shells, 1915 Model
     Quick firing guns in deck mounts
     on centreline ends, evenly spread, 2 raised mounts - superfiring
   Weight of broadside 159 lbs / 72 kg
   Shells per gun, main battery: 150
   9 - 20,0" / 508 mm above water torpedoes

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

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 25.595 shp / 19.094 Kw = 32,00 kts
   Range 3.100nm at 14,00 kts
   Bunker at max displacement = 262 tons

Complement:
   99 - 130

Cost:
   £0,201 million / $0,804 million

Distribution of weights at normal displacement:
   Armament: 18 tons, 1,5%
   Armour: 6 tons, 0,5%
      - Belts: 0 tons, 0,0%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 6 tons, 0,5%
      - Armour Deck: 0 tons, 0,0%
      - Conning Tower: 0 tons, 0,0%
   Machinery: 631 tons, 53,5%
   Hull, fittings & equipment: 318 tons, 26,9%
   Fuel, ammunition & stores: 182 tons, 15,4%
   Miscellaneous weights: 25 tons, 2,1%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     299 lbs / 136 Kg = 8,5 x 4,1 " / 105 mm shells or 0,2 torpedoes
   Stability (Unstable if below 1.00): 1,40
   Metacentric height 1,4 ft / 0,4 m
   Roll period: 10,3 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,20
   Seaboat quality  (Average = 1.00): 1,05

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,394
   Length to Beam Ratio: 12,22 : 1
   'Natural speed' for length: 19,00 kts
   Power going to wave formation at top speed: 61 %
   Trim (Max stability = 0, Max steadiness = 100): 67
   Bow angle (Positive = bow angles forward): -5,00 degrees
   Stern overhang: 3,28 ft / 1,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      15,09 ft / 4,60 m
      - Forecastle (15%):   13,12 ft / 4,00 m
      - Mid (26%):      13,12 ft / 4,00 m
      - Quarterdeck (15%):   9,19 ft / 2,80 m
      - Stern:      9,19 ft / 2,80 m
      - Average freeboard:   11,49 ft / 3,50 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 186,4%
      - Above water (accommodation/working, high = better): 68,1%
   Waterplane Area: 6.538 Square feet or 607 Square metres
   Displacement factor (Displacement / loading): 53%
   Structure weight / hull surface area: 27 lbs/sq ft or 131 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 0,94
      - Overall: 0,53
   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

the misc weight is divided:
9 tons torpedo's in the tubes
16 tons crew comfort messures

The weather/splintershields on the guns should be welcomed by the guncrews, especialy the forward ones

P3D

A bit higher than L:B=12:1 on the 1000t one.
The first purpose of a warship is to remain afloat. Anon.
Below 40 degrees, there is no law. Below 50 degrees, there is no God. sailor's maxim on weather in the Southern seas

maddox

Oh, poor me, just because I used standard sizes, I fell outside the concretized rules.
Just with some playing around I got this one.  Just the same combat power, but the captain has lost his 50 bottle winecellar.

QuoteTigre, French Destroyer laid down 1915 (Engine 1912)

Displacement:
   999 t light; 1.036 t standard; 1.182 t normal; 1.298 t full load

Dimensions: Length overall / water x beam x draught
   364,17 ft / 360,89 ft x 30,09 ft x 9,84 ft (normal load)
   111,00 m / 110,00 m x 9,17 m  x 3,00 m

Armament:
      4 - 4,13" / 105 mm guns in single mounts, 39,68lbs / 18,00kg shells, 1915 Model
     Quick firing guns in deck mounts
     on centreline ends, evenly spread, 2 raised mounts - superfiring
   Weight of broadside 159 lbs / 72 kg
   Shells per gun, main battery: 150
   9 - 20,0" / 508 mm above water torpedoes

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

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 25.565 shp / 19.071 Kw = 32,00 kts
   Range 3.100nm at 14,00 kts
   Bunker at max displacement = 262 tons

Complement:
   100 - 131

Cost:
   £0,201 million / $0,805 million

Distribution of weights at normal displacement:
   Armament: 18 tons, 1,5%
   Armour: 6 tons, 0,5%
      - Belts: 0 tons, 0,0%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 6 tons, 0,5%
      - Armour Deck: 0 tons, 0,0%
      - Conning Tower: 0 tons, 0,0%
   Machinery: 633 tons, 53,5%
   Hull, fittings & equipment: 323 tons, 27,3%
   Fuel, ammunition & stores: 182 tons, 15,4%
   Miscellaneous weights: 20 tons, 1,7%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     308 lbs / 140 Kg = 8,7 x 4,1 " / 105 mm shells or 0,2 torpedoes
   Stability (Unstable if below 1.00): 1,43
   Metacentric height 1,5 ft / 0,5 m
   Roll period: 10,2 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,18
   Seaboat quality  (Average = 1.00): 1,04

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,387
   Length to Beam Ratio: 12,00 : 1
   'Natural speed' for length: 19,00 kts
   Power going to wave formation at top speed: 60 %
   Trim (Max stability = 0, Max steadiness = 100): 67
   Bow angle (Positive = bow angles forward): -5,00 degrees
   Stern overhang: 3,28 ft / 1,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      15,09 ft / 4,60 m
      - Forecastle (15%):   13,12 ft / 4,00 m
      - Mid (26%):      13,12 ft / 4,00 m
      - Quarterdeck (15%):   9,19 ft / 2,80 m
      - Stern:      9,19 ft / 2,80 m
      - Average freeboard:   11,49 ft / 3,50 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 186,2%
      - Above water (accommodation/working, high = better): 69,9%
   Waterplane Area: 6.639 Square feet or 617 Square metres
   Displacement factor (Displacement / loading): 54%
   Structure weight / hull surface area: 27 lbs/sq ft or 134 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 0,93
      - Overall: 0,53
   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

the misc weight is divided:
9 tons torpedo's in the tubes
6 tons crew comfort messures

Can it sail the seven seas now P3D?