Iberian Destroyer Design Thread

[Kaiser Kirk]

In 1918 the Iberians will need a new fleet destroyer.

They will need it to be 1000-1500 tons,
Smaller is an asset as they need to replace a lot of ships.
It is possible that a "Med / Island" and a "Fleet" design could be chosen.
The fleet design will need to cross up to 4400+nm across the open sea

This is where the French style 2 big gun design could work.
Main guns can be 155L50 deck M&H, 140L45 - deck, M&H
Those both are heavy shells and so M&H is preferred.

Alternately, a 120L50 M&H, Deck, and 105L50 M&H, Deck are available.

The only AA gun is the 90L50 AA in both M&H and D.

It will need the following Misc Wt :
15tons Enchanced Hydrophones, 6+ tons DC
4t Paravanes
0t SR radio - LR optional.

[TacCovert4]

Ok, I just want a tiny bit of clarification on 2 points. 

1)  you said 1000 to 1500t, smaller preference.   1000t is the floor then, not a 900 tonner?

2)  what's the torpedo size available?  21in, 21in HW, 24in?

[Desertfox]

G-class, Iberia Destroyer laid down 1918

Displacement:
   1,197 t light; 1,249 t standard; 1,364 t normal; 1,456 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (328.00 ft / 328.00 ft) x 31.50 ft x (10.50 / 10.99 ft)
   (99.97 m / 99.97 m) x 9.60 m  x (3.20 / 3.35 m)

Armament:
      2 - 6.10" / 155 mm 50.0 cal guns - 120.29lbs / 54.56kg shells, 100 per gun
     Quick firing guns in deck and hoist mounts, 1918 Model
     2 x Single mounts on centreline ends, evenly spread
      4 - 4.13" / 105 mm 45.0 cal guns - 35.62lbs / 16.16kg shells, 150 per gun
     Breech loading guns in deck mounts, 1918 Model
     2 x Single mounts on centreline, evenly spread
      1 raised mount
     2 x Single mounts on sides forward
      Weight of broadside 383 lbs / 174 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.60" / 15 mm         -         0.60" / 15 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 29,152 shp / 21,747 Kw = 31.50 kts
   Range 6,000nm at 10.00 kts
   Bunker at max displacement = 207 tons

Complement:
   111 - 145

Cost:
   £0.339 million / $1.358 million

Distribution of weights at normal displacement:
   Armament: 93 tons, 6.8 %
      - Guns: 93 tons, 6.8 %
   Armour: 4 tons, 0.3 %
      - Armament: 4 tons, 0.3 %
   Machinery: 684 tons, 50.1 %
   Hull, fittings & equipment: 363 tons, 26.6 %
   Fuel, ammunition & stores: 167 tons, 12.3 %
   Miscellaneous weights: 53 tons, 3.9 %
      - Hull above water: 15 tons
      - On freeboard deck: 28 tons
      - Above deck: 10 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     336 lbs / 152 Kg = 3.0 x 6.1 " / 155 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.22
   Metacentric height 1.3 ft / 0.4 m
   Roll period: 11.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.65
   Seaboat quality  (Average = 1.00): 0.91

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.440 / 0.449
   Length to Beam Ratio: 10.41 : 1
   'Natural speed' for length: 18.11 kts
   Power going to wave formation at top speed: 66 %
   Trim (Max stability = 0, Max steadiness = 100): 55
   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 %,  20.00 ft / 6.10 m,  17.00 ft / 5.18 m
      - Forward deck:   18.00 %,  17.00 ft / 5.18 m,  17.00 ft / 5.18 m
      - Aft deck:   52.00 %,  11.00 ft / 3.35 m,  11.00 ft / 3.35 m
      - Quarter deck:   15.00 %,  11.00 ft / 3.35 m,  11.00 ft / 3.35 m
      - Average freeboard:      13.16 ft / 4.01 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 184.3 %
      - Above water (accommodation/working, high = better): 140.7 %
   Waterplane Area: 6,538 Square feet or 607 Square metres
   Displacement factor (Displacement / loading): 55 %
   Structure weight / hull surface area: 34 lbs/sq ft or 165 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.62
      - Overall: 0.56
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

10t - FC
15t - Hydrophones
6t - DC
4t - Paravanes

[The Rock Doctor]

Fletcherano, laid down 1918

Displacement:
   1,452 t light; 1,516 t standard; 1,675 t normal; 1,803 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (340.01 ft / 334.65 ft) x 32.81 ft x (12.14 / 12.78 ft)
   (103.63 m / 102.00 m) x 10.00 m  x (3.70 / 3.90 m)

Armament:
      5 - 4.13" / 105 mm 50.0 cal guns - 37.39lbs / 16.96kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1918 Model
     5 x Single mounts on centreline ends, majority aft
      3 raised mounts - superfiring
      2 - 3.54" / 90.0 mm 50.0 cal guns - 23.55lbs / 10.68kg shells, 150 per gun
     Anti-air guns in deck mounts, 1918 Model
     2 x Single mounts on sides, forward deck aft
      2 raised mounts
      Weight of broadside 234 lbs / 106 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.79" / 20 mm   0.79" / 20 mm      0.79" / 20 mm
   2nd:   0.79" / 20 mm   0.79" / 20 mm            -

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 30,793 shp / 22,971 Kw = 31.00 kts
   Range 5,000nm at 12.00 kts
   Bunker at max displacement = 288 tons

Complement:
   130 - 170

Cost:
   £0.381 million / $1.526 million

Distribution of weights at normal displacement:
   Armament: 67 tons, 4.0 %
      - Guns: 67 tons, 4.0 %
   Armour: 33 tons, 2.0 %
      - Armament: 33 tons, 2.0 %
   Machinery: 838 tons, 50.0 %
   Hull, fittings & equipment: 423 tons, 25.3 %
   Fuel, ammunition & stores: 223 tons, 13.3 %
   Miscellaneous weights: 91 tons, 5.4 %
      - Hull below water: 15 tons - enhanced hydrophones
      - On freeboard deck: 43 tons - 24 t torpedoes, 10+ t of ASW, weight reserve
      - Above deck: 33 tons - FC + L/R wireless plus an extra tonne for growth margins.

[TacCovert4]

Nina, using the 140 M&H available via the battleship programs.

Enter ship name, Enter country Enter ship type laid down 1918

Displacement:
   1,499 t light; 1,577 t standard; 1,788 t normal; 1,957 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (370.52 ft / 367.45 ft) x 34.45 ft x (11.50 / 12.24 ft)
   (112.93 m / 112.00 m) x 10.50 m  x (3.51 / 3.73 m)

Armament:
      4 - 5.51" / 140 mm 45.0 cal guns - 84.44lbs / 38.30kg shells, 200 per gun
     Quick firing guns in deck and hoist mounts, 1918 Model
     2 x 2-gun mounts on centreline ends, evenly spread
      1 - 3.54" / 90.0 mm 50.0 cal gun - 23.55lbs / 10.68kg shells, 300 per gun
     Anti-air gun in deck mount, 1918 Model
     1 x Single mount on centreline, aft deck forward
      1 raised mount
      8 - 0.51" / 13.0 mm 70.0 cal guns - 0.08lbs / 0.03kg shells, 2,000 per gun
     Machine guns in deck mounts, 1918 Model
     8 x Single mounts on sides, evenly spread
      Weight of broadside 362 lbs / 164 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.94" / 24 mm         -         0.79" / 20 mm

   - Conning towers: Forward 0.79" / 20 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 32,712 shp / 24,403 Kw = 31.62 kts
   Range 4,500nm at 14.00 kts
   Bunker at max displacement = 380 tons

Complement:
   136 - 178

Cost:
   £0.424 million / $1.694 million

Distribution of weights at normal displacement:
   Armament: 96 tons, 5.4 %
      - Guns: 96 tons, 5.4 %
   Armour: 9 tons, 0.5 %
      - Armament: 6 tons, 0.3 %
      - Conning Tower: 2 tons, 0.1 %
   Machinery: 898 tons, 50.2 %
   Hull, fittings & equipment: 451 tons, 25.2 %
   Fuel, ammunition & stores: 289 tons, 16.2 %
   Miscellaneous weights: 46 tons, 2.6 %
      - Hull below water: 15 tons
      - On freeboard deck: 21 tons
      - Above deck: 10 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     434 lbs / 197 Kg = 5.2 x 5.5 " / 140 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.19
   Metacentric height 1.4 ft / 0.4 m
   Roll period: 12.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.59
   Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.430 / 0.442
   Length to Beam Ratio: 10.67 : 1
   'Natural speed' for length: 19.17 kts
   Power going to wave formation at top speed: 63 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   Bow angle (Positive = bow angles forward): 10.00 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 %,  17.39 ft / 5.30 m,  17.39 ft / 5.30 m
      - Forward deck:   30.00 %,  17.39 ft / 5.30 m,  17.39 ft / 5.30 m
      - Aft deck:   35.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Quarter deck:   15.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Average freeboard:      13.62 ft / 4.15 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 181.1 %
      - Above water (accommodation/working, high = better): 148.3 %
   Waterplane Area: 7,949 Square feet or 738 Square metres
   Displacement factor (Displacement / loading): 65 %
   Structure weight / hull surface area: 35 lbs/sq ft or 171 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.25
      - Overall: 0.54
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

9t - 1x3x21in TT
15t - Enhanced Hydrophones
8t - Depth Charges
4t - Paravanes
10t - 1912 FC

[eltf177]

Fletcherano, laid down 1918

Displacement:
   1,452 t light; 1,516 t standard; 1,675 t normal; 1,803 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (340.01 ft / 334.65 ft) x 32.81 ft x (12.14 / 12.78 ft)
   (103.63 m / 102.00 m) x 10.00 m  x (3.70 / 3.90 m)

Armament:
      5 - 4.13" / 105 mm 50.0 cal guns - 37.39lbs / 16.96kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1918 Model
     5 x Single mounts on centreline ends, majority aft
      3 raised mounts - superfiring
      2 - 3.54" / 90.0 mm 50.0 cal guns - 23.55lbs / 10.68kg shells, 150 per gun
     Anti-air guns in deck mounts, 1918 Model
     2 x Single mounts on sides, forward deck aft
      2 raised mounts
      Weight of broadside 234 lbs / 106 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.79" / 20 mm   0.79" / 20 mm      0.79" / 20 mm
   2nd:   0.79" / 20 mm   0.79" / 20 mm            -

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 30,793 shp / 22,971 Kw = 31.00 kts
   Range 5,000nm at 12.00 kts
   Bunker at max displacement = 288 tons

Complement:
   130 - 170

Cost:
   £0.381 million / $1.526 million

Distribution of weights at normal displacement:
   Armament: 67 tons, 4.0 %
      - Guns: 67 tons, 4.0 %
   Armour: 33 tons, 2.0 %
      - Armament: 33 tons, 2.0 %
   Machinery: 838 tons, 50.0 %
   Hull, fittings & equipment: 423 tons, 25.3 %
   Fuel, ammunition & stores: 223 tons, 13.3 %
   Miscellaneous weights: 91 tons, 5.4 %
      - Hull below water: 15 tons - enhanced hydrophones
      - On freeboard deck: 43 tons - 24 t torpedoes, 10+ t of ASW, weight reserve
      - Above deck: 33 tons - FC + L/R wireless plus an extra tonne for growth margins.

Seem to be missing data here...

[The Rock Doctor]

Weird.  Thanks for pointing that out.

[The Rock Doctor]

Let's post the whole thing this time, then.

Enter ship name, Enter country Enter ship type laid down 1918

Displacement:
   1,452 t light; 1,516 t standard; 1,675 t normal; 1,803 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (340.01 ft / 334.65 ft) x 32.81 ft x (12.14 / 12.78 ft)
   (103.63 m / 102.00 m) x 10.00 m  x (3.70 / 3.90 m)

Armament:
      5 - 4.13" / 105 mm 50.0 cal guns - 37.39lbs / 16.96kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1918 Model
     5 x Single mounts on centreline ends, majority aft
      3 raised mounts - superfiring
      2 - 3.54" / 90.0 mm 50.0 cal guns - 23.55lbs / 10.68kg shells, 150 per gun
     Anti-air guns in deck mounts, 1918 Model
     2 x Single mounts on sides, forward deck aft
      2 raised mounts
      Weight of broadside 234 lbs / 106 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.79" / 20 mm   0.79" / 20 mm      0.79" / 20 mm
   2nd:   0.79" / 20 mm   0.79" / 20 mm            -

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 30,793 shp / 22,971 Kw = 31.00 kts
   Range 5,000nm at 12.00 kts
   Bunker at max displacement = 288 tons

Complement:
   130 - 170

Cost:
   £0.381 million / $1.526 million

Distribution of weights at normal displacement:
   Armament: 67 tons, 4.0 %
      - Guns: 67 tons, 4.0 %
   Armour: 33 tons, 2.0 %
      - Armament: 33 tons, 2.0 %
   Machinery: 838 tons, 50.0 %
   Hull, fittings & equipment: 423 tons, 25.3 %
   Fuel, ammunition & stores: 223 tons, 13.3 %
   Miscellaneous weights: 91 tons, 5.4 %
      - Hull below water: 15 tons
      - On freeboard deck: 43 tons
      - Above deck: 33 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     435 lbs / 197 Kg = 12.3 x 4.1 " / 105 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.19
   Metacentric height 1.3 ft / 0.4 m
   Roll period: 12.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.49
   Seaboat quality  (Average = 1.00): 1.01

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.440 / 0.450
   Length to Beam Ratio: 10.20 : 1
   'Natural speed' for length: 18.29 kts
   Power going to wave formation at top speed: 66 %
   Trim (Max stability = 0, Max steadiness = 100): 49
   Bow angle (Positive = bow angles forward): 15.00 degrees
   Stern overhang: -3.28 ft / -1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  20.01 ft / 6.10 m,  16.40 ft / 5.00 m
      - Forward deck:   30.00 %,  16.40 ft / 5.00 m,  12.80 ft / 3.90 m
      - Aft deck:   35.00 %,  12.80 ft / 3.90 m,  12.80 ft / 3.90 m
      - Quarter deck:   15.00 %,  12.80 ft / 3.90 m,  12.80 ft / 3.90 m
      - Average freeboard:      14.35 ft / 4.37 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 175.5 %
      - Above water (accommodation/working, high = better): 138.7 %
   Waterplane Area: 6,947 Square feet or 645 Square metres
   Displacement factor (Displacement / loading): 65 %
   Structure weight / hull surface area: 33 lbs/sq ft or 162 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.71
      - Overall: 0.56
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room

[Jefgte]

After classes :
E - 850t - 4x105 - 3TT2x460 - 30kts
F - 1000t - 4x105 - 3TTT2x460 - 30kts
The G class, more powerful.
G - 1500t - 4x120 - 4TT2x533 - 32kts

G class, Iberian Empire DD1500t laid down 1918

Displacement:
   1 500 t light; 1 561 t standard; 1 771 t normal; 1 940 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (403,47 ft / 400,26 ft) x 36,09 ft x (10,73 / 11,39 ft)
   (122,98 m / 122,00 m) x 11,00 m  x (3,27 / 3,47 m)

Armament:
      4 - 4,72" / 120 mm 50,0 cal guns - 55,82lbs / 25,32kg shells, 180 per gun
     Quick firing guns in deck and hoist mounts, 1918 Model
     2 x Twin mounts on centreline ends, evenly spread
      1 - 3,54" / 90,0 mm 50,0 cal gun - 23,55lbs / 10,68kg shells, 200 per gun
     Anti-air gun in deck mount, 1918 Model
     1 x Single mount on centreline, forward deck aft
      2 - 0,51" / 13,0 mm 70,0 cal guns - 0,09lbs / 0,04kg shells, 2 000 per gun
     Machine guns in deck mounts, 1918 Model
     2 x Single mounts on sides, forward deck forward
      Weight of broadside 247 lbs / 112 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,39" / 10 mm         -               -
   2nd:   0,39" / 10 mm         -               -
   4th:   0,39" / 10 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 32 000 shp / 23 872 Kw = 32,01 kts
   Range 4 500nm at 14,00 kts
   Bunker at max displacement = 379 tons

Complement:
   136 - 177

Cost:
   £0,405 million / $1,619 million

Distribution of weights at normal displacement:
   Armament: 59 tons, 3,3 %
      - Guns: 59 tons, 3,3 %
   Armour: 4 tons, 0,2 %
      - Armament: 4 tons, 0,2 %
   Machinery: 891 tons, 50,3 %
   Hull, fittings & equipment: 453 tons, 25,6 %
   Fuel, ammunition & stores: 271 tons, 15,3 %
   Miscellaneous weights: 93 tons, 5,3 %
      - On freeboard deck: 63 tons
      - Above deck: 30 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     463 lbs / 210 Kg = 8,8 x 4,7 " / 120 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,21
   Metacentric height 1,5 ft / 0,5 m
   Roll period: 12,2 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,32
   Seaboat quality  (Average = 1.00): 1,02

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0,400 / 0,413
   Length to Beam Ratio: 11,09 : 1
   'Natural speed' for length: 20,01 kts
   Power going to wave formation at top speed: 60 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   Bow angle (Positive = bow angles forward): 10,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   17,50 %,  18,21 ft / 5,55 m,  14,60 ft / 4,45 m
      - Forward deck:   32,50 %,  14,60 ft / 4,45 m,  12,30 ft / 3,75 m
      - Aft deck:   32,50 %,  12,30 ft / 3,75 m,  11,32 ft / 3,45 m
      - Quarter deck:   17,50 %,  11,32 ft / 3,45 m,  11,65 ft / 3,55 m
      - Average freeboard:      13,03 ft / 3,97 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 175,7 %
      - Above water (accommodation/working, high = better): 157,3 %
   Waterplane Area: 8 892 Square feet or 826 Square metres
   Displacement factor (Displacement / loading): 67 %
   Structure weight / hull surface area: 32 lbs/sq ft or 159 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 0,84
      - Overall: 0,52
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

25t for long range Marconi
5t for Top mast rangefinder
32t for 4x2TT x 533 HW
3t for forced ventilation
4t paravanes
15t for improveded hydrophone
6t for DC
24t reserved for new materials & armament or minen

Trial speed 32.5kts
Bonus: 0.49