Byzantine Empire 1925...

snip · June 13, 2023, 06:13:14 PM

Its an interesting comparison between this and the Roman 2000t Destroyers. I'm not sure the tradeoffs are worth the additional 300 tons, but that could very well be my biases.

Jefgte · June 14, 2023, 02:44:48 AM

QuoteIts an interesting comparison between this and the Roman 2000t Destroyers. I'm not sure the tradeoffs are worth the additional 300 tons, but that could very well be my biases.

I use 3000t cruiser rule with 0.75 overall, not 2000t destroyer rule.
It is a more robust, more enduring ship with oceanic performance.

Survivability 556kg for 2330t vs 263kg for 2000t.

Jefgte · June 15, 2023, 04:00:09 PM

1800t is more economical version than 2330t

SD13, Byzantine Empire Super Destroyer laid down 1927

Displacement:
   1 800 t light; 1 895 t standard; 2 218 t normal; 2 477 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (383,93 ft / 380,58 ft) x 36,09 ft x (13,33 / 14,39 ft)
   (117,02 m / 116,00 m) x 11,00 m x (4,06 / 4,39 m)

Armament:
4 - 5,51" / 140 mm 45,0 cal guns - 81,99lbs / 37,19kg shells, 210 per gun
     Quick firing guns in deck mounts, 1927 Model
     4 x Single mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
1 - 3,00" / 76,2 mm 45,0 cal gun - 12,50lbs / 5,67kg shells, 260 per gun
     Anti-air gun in deck mount, 1927 Model
     1 x Single mount on centreline, forward deck aft
      1 raised mount
4 - 1,85" / 47,0 mm 50,0 cal guns - 3,00lbs / 1,36kg shells, 1 000 per gun
     Quick firing guns in deck mounts, 1927 Model
     4 x Single mounts on sides, forward deck aft
      4 raised mounts
12 - 0,50" / 12,7 mm 62,0 cal guns - 0,07lbs / 0,03kg shells, 8 000 per gun
     Machine guns in deck mounts, 1927 Model
     6 x 2-gun mounts on side ends, majority forward
      6 raised mounts
Weight of broadside 353 lbs / 160 kg

Armour:
- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,79" / 20 mm     -           -
   2nd:   0,39" / 10 mm     -           -
   3rd:   0,39" / 10 mm     -           -
   4th:   0,39" / 10 mm     -           -

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 40 600 shp / 30 288 Kw = 32,38 kts
   Range 10 000nm at 12,00 kts
   Bunker at max displacement = 582 tons

Complement:
   161 - 210

Cost:
   £0,860 million / $3,439 million

Distribution of weights at normal displacement:
   Armament: 65 tons, 2,9 %
     - Guns: 65 tons, 2,9 %
   Armour: 17 tons, 0,7 %
     - Armament: 17 tons, 0,7 %
   Machinery: 1 111 tons, 50,1 %
   Hull, fittings & equipment: 490 tons, 22,1 %
   Fuel, ammunition & stores: 418 tons, 18,9 %
   Miscellaneous weights: 118 tons, 5,3 %
     - Hull above water: 28 tons
     - On freeboard deck: 58 tons
     - Above deck: 32 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     574 lbs / 260 Kg = 6,9 x 5,5 " / 140 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,25
   Metacentric height 1,6 ft / 0,5 m
   Roll period: 11,9 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,31
   Seaboat quality (Average = 1.00): 1,03

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0,424 / 0,439
   Length to Beam Ratio: 10,55 : 1
   'Natural speed' for length: 19,51 kts
   Power going to wave formation at top speed: 64 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   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:   18,00 %, 19,03 ft / 5,80 m, 15,75 ft / 4,80 m
     - Forward deck:   33,00 %, 15,75 ft / 4,80 m, 13,12 ft / 4,00 m
     - Aft deck:   33,00 %, 13,12 ft / 4,00 m, 13,12 ft / 4,00 m
     - Quarter deck:   16,00 %, 13,12 ft / 4,00 m, 13,12 ft / 4,00 m
     - Average freeboard:      14,27 ft / 4,35 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 172,2 %
      - Above water (accommodation/working, high = better): 140,0 %
   Waterplane Area: 8 587 Square feet or 798 Square metres
   Displacement factor (Displacement / loading): 77 %
   Structure weight / hull surface area: 33 lbs/sq ft or 162 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 1,24
      - Overall: 0,54
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

7t for 1918 top mast rangefinder
25t for LR marconi

32t for 2x4TTx533HW
26t reserved for new material, armament, minen

15t for improved Hydrophone
5t for 50x90DC
8t for climatisation

Trial speed: 33kts
Bonus: 0.62

Jefgte · June 17, 2023, 04:50:59 PM

The max. TB in a 80m shipyard

Egyptian class, Byzantine Empire T630 laid down 1928

Displacement:
   630 t light; 663 t standard; 734 t normal; 790 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (261,31 ft / 259,19 ft) x 24,93 ft x (9,93 / 10,43 ft)
   (79,65 m / 79,00 m) x 7,60 m x (3,03 / 3,18 m)

Armament:
4 - 4,00" / 102 mm 45,0 cal guns - 33,00lbs / 14,97kg shells, 195 per gun
     Quick firing guns in deck mounts, 1928 Model
     2 x 2-gun mounts on centreline ends, evenly spread
2 - 1,85" / 47,0 mm 50,0 cal guns - 3,00lbs / 1,36kg shells, 1 000 per gun
     Anti-air guns in deck mounts, 1928 Model
     2 x Single mounts on sides, forward deck aft
      2 raised mounts
4 - 0,50" / 12,7 mm 62,0 cal guns - 0,07lbs / 0,03kg shells, 4 000 per gun
     Machine guns in deck mounts, 1928 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
Weight of broadside 138 lbs / 63 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,
   Geared drive, 2 shafts, 18 500 shp / 13 801 Kw = 30,26 kts
   Range 4 200nm at 12,00 kts
   Bunker at max displacement = 127 tons

Complement:
   69 - 91

Cost:
   £0,306 million / $1,224 million

Distribution of weights at normal displacement:
   Armament: 25 tons, 3,4 %
     - Guns: 25 tons, 3,4 %
   Armour: 5 tons, 0,7 %
     - Armament: 5 tons, 0,7 %
   Machinery: 367 tons, 50,0 %
   Hull, fittings & equipment: 209 tons, 28,5 %
   Fuel, ammunition & stores: 104 tons, 14,1 %
   Miscellaneous weights: 24 tons, 3,3 %
     - On freeboard deck: 22 tons
     - Above deck: 2 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     215 lbs / 98 Kg = 6,7 x 4,0 " / 102 mm shells or 0,2 torpedoes
   Stability (Unstable if below 1.00): 1,12
   Metacentric height 0,8 ft / 0,2 m
   Roll period: 11,9 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,41
   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 / 0,410
   Length to Beam Ratio: 10,39 : 1
   'Natural speed' for length: 16,10 kts
   Power going to wave formation at top speed: 68 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   Bow angle (Positive = bow angles forward): 8,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   18,00 %, 15,09 ft / 4,60 m, 13,12 ft / 4,00 m
     - Forward deck:   33,00 %, 13,12 ft / 4,00 m, 11,15 ft / 3,40 m
     - Aft deck:   33,00 %, 11,15 ft / 3,40 m, 10,50 ft / 3,20 m
     - Quarter deck:   16,00 %, 10,50 ft / 3,20 m, 10,50 ft / 3,20 m
     - Average freeboard:      11,76 ft / 3,59 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): 126,1 %
   Waterplane Area: 3 978 Square feet or 370 Square metres
   Displacement factor (Displacement / loading): 59 %
   Structure weight / hull surface area: 26 lbs/sq ft or 126 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 2,73
      - Overall: 0,59
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

2t for top fire control

9t for 1x3TTx533
5t for climatisation
5T for Hydrophone
3t for 30DC

420nm@30kts
1260nm@20kts
2157nm@16kts

Trial speed: 31.5kts
Bonus: 1.24

Jefgte · June 23, 2023, 12:27:26 AM

Testing an Anti Aircraft Destroyer

DDAA, Byzantine Empire DDAA laid down 1928

Displacement:
   1 680 t light; 1 813 t standard; 2 077 t normal; 2 288 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (380,55 ft / 377,30 ft) x 36,09 ft x (13,18 / 14,06 ft)
   (115,99 m / 115,00 m) x 11,00 m x (4,02 / 4,29 m)

Armament:
8 - 4,00" / 102 mm 45,0 cal guns - 33,00lbs / 14,97kg shells, 500 per gun
     Anti-air guns in deck mounts, 1928 Model
     4 x Twin mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
1 - 3,00" / 76,2 mm 45,0 cal gun - 12,50lbs / 5,67kg shells, 250 per gun
     Anti-air gun in deck mount, 1928 Model
     1 x Single mount on centreline, forward deck aft
      1 raised mount
8 - 1,85" / 47,0 mm 50,0 cal guns - 3,00lbs / 1,36kg shells, 1 000 per gun
     Quick firing guns in deck mounts, 1928 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
8 - 0,50" / 12,7 mm 62,0 cal guns - 0,07lbs / 0,03kg shells, 10 000 per gun
     Machine guns in deck mounts, 1928 Model
     4 x 2-gun mounts on sides, evenly spread
      4 raised mounts
Weight of broadside 301 lbs / 137 kg

Armour:
- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,39" / 10 mm     -           -
   2nd:   0,39" / 10 mm     -           -
   3rd:   0,39" / 10 mm     -           -
   4th:   0,39" / 10 mm     -           -

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 38 399 shp / 28 645 Kw = 32,32 kts
   Range 8 500nm at 12,00 kts
   Bunker at max displacement = 475 tons

Complement:
   153 - 199

Cost:
   £0,836 million / $3,346 million

Distribution of weights at normal displacement:
   Armament: 49 tons, 2,4 %
     - Guns: 49 tons, 2,4 %
   Armour: 12 tons, 0,6 %
     - Armament: 12 tons, 0,6 %
   Machinery: 1 037 tons, 49,9 %
   Hull, fittings & equipment: 479 tons, 23,1 %
   Fuel, ammunition & stores: 397 tons, 19,1 %
   Miscellaneous weights: 104 tons, 5,0 %
     - Hull above water: 6 tons
     - On freeboard deck: 68 tons
     - Above deck: 30 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     550 lbs / 250 Kg = 17,2 x 4,0 " / 102 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,27
   Metacentric height 1,7 ft / 0,5 m
   Roll period: 11,8 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,27
   Seaboat quality (Average = 1.00): 1,03

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0,405 / 0,418
   Length to Beam Ratio: 10,45 : 1
   'Natural speed' for length: 19,42 kts
   Power going to wave formation at top speed: 63 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   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 %, 18,44 ft / 5,62 m, 15,81 ft / 4,82 m
     - Forward deck:   32,50 %, 15,81 ft / 4,82 m, 12,86 ft / 3,92 m
     - Aft deck:   32,50 %, 12,86 ft / 3,92 m, 12,53 ft / 3,82 m
     - Quarter deck:   17,50 %, 12,53 ft / 3,82 m, 12,53 ft / 3,82 m
     - Average freeboard:      13,93 ft / 4,25 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 172,3 %
      - Above water (accommodation/working, high = better): 141,5 %
   Waterplane Area: 8 406 Square feet or 781 Square metres
   Displacement factor (Displacement / loading): 78 %
   Structure weight / hull surface area: 33 lbs/sq ft or 162 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 1,22
      - Overall: 0,55
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

5t for 1924 top mast rangefinder
25t for LR marconi
6t for climatisation
32t for 2x4TTx533HW
15t for improved Hydrophone
5t for 50x90DC
12t reserved for new material, armament, minen.

TacCovert4 · June 23, 2023, 12:35:03 PM

I've been waiting on my first Dual Purpose gun to go that route, but I expect to be heading this way very soon as well. Plus an Offshore Patrol Vessel with AA, ASW, and Mine Warfare capability.....since my current MS-1 class is only 20 years old now.

Jefgte · June 23, 2023, 04:01:39 PM

I have reSS DDAA - 1680t - 4T2x102 - 32.3kts to 1900t - 6T2x102 - 33kts

The Rock Doctor · June 23, 2023, 04:41:06 PM

Why include the single 3"?

Jefgte · June 24, 2023, 12:39:51 AM

QuoteWhy include the single 3"?

1900t DDAA without 3" AA gun but 6T2x102AA

D14, Byzantine Empire DDAA laid down 1928

Displacement:
   1 900 t light; 2 029 t standard; 2 347 t normal; 2 601 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (409,44 ft / 406,82 ft) x 37,86 ft x (13,17 / 14,10 ft)
   (124,80 m / 124,00 m) x 11,54 m x (4,01 / 4,30 m)

Armament:
12 - 4,00" / 102 mm 45,0 cal guns - 33,00lbs / 14,97kg shells, 300 per gun
     Anti-air guns in deck mounts, 1928 Model
     6 x Twin mounts on centreline ends, evenly spread
      4 raised mounts - superfiring
8 - 1,85" / 47,0 mm 50,0 cal guns - 3,00lbs / 1,36kg shells, 1 000 per gun
     Anti-air guns in deck mounts, 1928 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
8 - 0,50" / 12,7 mm 62,0 cal guns - 0,07lbs / 0,03kg shells, 10 000 per gun
     Machine guns in deck mounts, 1928 Model
     4 x 2-gun mounts on sides, evenly spread
      4 raised mounts
Weight of broadside 421 lbs / 191 kg

Armour:
- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,39" / 10 mm     -           -
   3rd:   0,39" / 10 mm     -           -
   4th:   0,39" / 10 mm     -           -

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 43 000 shp / 32 078 Kw = 32,94 kts
   Range 9 500nm at 12,00 kts
   Bunker at max displacement = 572 tons

Complement:
   168 - 219

Cost:
   £0,963 million / $3,850 million

Distribution of weights at normal displacement:
   Armament: 66 tons, 2,8 %
     - Guns: 66 tons, 2,8 %
   Armour: 12 tons, 0,5 %
     - Armament: 12 tons, 0,5 %
   Machinery: 1 178 tons, 50,2 %
   Hull, fittings & equipment: 543 tons, 23,2 %
   Fuel, ammunition & stores: 447 tons, 19,1 %
   Miscellaneous weights: 100 tons, 4,3 %
     - Hull above water: 8 tons
     - On freeboard deck: 60 tons
     - Above deck: 32 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     617 lbs / 280 Kg = 19,3 x 4,0 " / 102 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,29
   Metacentric height 1,8 ft / 0,6 m
   Roll period: 11,7 seconds
   Steadiness   - As gun platform (Average = 50 %): 72 %
         - Recoil effect (Restricted arc if above 1.00): 0,32
   Seaboat quality (Average = 1.00): 1,04

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0,405 / 0,419
   Length to Beam Ratio: 10,75 : 1
   'Natural speed' for length: 20,17 kts
   Power going to wave formation at top speed: 62 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   Bow angle (Positive = bow angles forward): 8,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   18,00 %, 18,62 ft / 5,68 m, 15,99 ft / 4,88 m
     - Forward deck:   33,00 %, 15,99 ft / 4,88 m, 13,04 ft / 3,98 m
     - Aft deck:   33,00 %, 13,04 ft / 3,98 m, 12,71 ft / 3,88 m
     - Quarter deck:   16,00 %, 12,71 ft / 3,88 m, 13,04 ft / 3,98 m
     - Average freeboard:      14,17 ft / 4,32 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 173,6 %
      - Above water (accommodation/working, high = better): 147,7 %
   Waterplane Area: 9 509 Square feet or 883 Square metres
   Displacement factor (Displacement / loading): 79 %
   Structure weight / hull surface area: 35 lbs/sq ft or 169 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 1,06
      - Overall: 0,54
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

7t for 1924 top mast rangefinder
25t for LR marconi
8t for climatisation
24t for 2x3TTx533HW
15t for improved Hydrophone
5t for 50x90DC
12t reserved for new material, armament, minen.

4845nm@16kts
Trial speed: 33,5kts
Bonus: 0.56

The Rock Doctor · June 24, 2023, 08:02:47 AM

I feel there could be deck space issues there.

Jefgte · June 24, 2023, 10:11:22 AM

QuoteI feel there could be deck space issues there.

I add 12m

D14, Byzantine Empire DDAA laid down 1928

Displacement:
   2 000 t light; 2 132 t standard; 2 482 t normal; 2 761 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (448,82 ft / 446,19 ft) x 38,81 ft x (11,94 / 12,85 ft)
   (136,80 m / 136,00 m) x 11,83 m x (3,64 / 3,92 m)

Armament:
12 - 4,00" / 102 mm 45,0 cal guns - 33,00lbs / 14,97kg shells, 300 per gun
     Anti-air guns in deck mounts, 1928 Model
     6 x Twin mounts on centreline ends, evenly spread
      4 raised mounts - superfiring
8 - 1,85" / 47,0 mm 50,0 cal guns - 3,00lbs / 1,36kg shells, 1 000 per gun
     Anti-air guns in deck mounts, 1928 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
8 - 0,50" / 12,7 mm 62,0 cal guns - 0,07lbs / 0,03kg shells, 10 000 per gun
     Machine guns in deck mounts, 1928 Model
     4 x 2-gun mounts on side ends, evenly spread
      4 raised mounts
Weight of broadside 421 lbs / 191 kg

Armour:
- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,39" / 10 mm     -           -
   3rd:   0,39" / 10 mm     -           -
   4th:   0,39" / 10 mm     -           -

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 44 800 shp / 33 421 Kw = 33,36 kts
   Range 10 000nm at 12,00 kts
   Bunker at max displacement = 629 tons

Complement:
   175 - 228

Cost:
   £1,011 million / $4,045 million

Distribution of weights at normal displacement:
   Armament: 67 tons, 2,7 %
     - Guns: 67 tons, 2,7 %
   Armour: 7 tons, 0,3 %
     - Armament: 7 tons, 0,3 %
   Machinery: 1 244 tons, 50,1 %
   Hull, fittings & equipment: 563 tons, 22,7 %
   Fuel, ammunition & stores: 481 tons, 19,4 %
   Miscellaneous weights: 120 tons, 4,8 %
     - Hull above water: 8 tons
     - On freeboard deck: 80 tons
     - Above deck: 32 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     654 lbs / 297 Kg = 20,4 x 4,0 " / 102 mm shells or 0,4 torpedoes
   Stability (Unstable if below 1.00): 1,31
   Metacentric height 2,0 ft / 0,6 m
   Roll period: 11,6 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,28
   Seaboat quality (Average = 1.00): 1,03

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0,420 / 0,434
   Length to Beam Ratio: 11,50 : 1
   'Natural speed' for length: 21,12 kts
   Power going to wave formation at top speed: 60 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   Bow angle (Positive = bow angles forward): 8,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   18,00 %, 18,70 ft / 5,70 m, 15,42 ft / 4,70 m
     - Forward deck:   33,00 %, 15,42 ft / 4,70 m, 12,80 ft / 3,90 m
     - Aft deck:   33,00 %, 12,80 ft / 3,90 m, 12,47 ft / 3,80 m
     - Quarter deck:   16,00 %, 12,47 ft / 3,80 m, 12,80 ft / 3,90 m
     - Average freeboard:      13,86 ft / 4,22 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 172,8 %
      - Above water (accommodation/working, high = better): 157,1 %
   Waterplane Area: 10 797 Square feet or 1 003 Square metres
   Displacement factor (Displacement / loading): 80 %
   Structure weight / hull surface area: 34 lbs/sq ft or 164 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 0,73
      - Overall: 0,52
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

7t for 1924 top mast rangefinder
25t for LR marconi
8t for climatisation
32t for 2x4TTx533HW
15t for improved Hydrophone
5t for 50x90DC
28t reserved for new material, armament, minen.

5100nm@16kts
Trial speed: 34kts
Bonus: 0.64

Jefgte · June 24, 2023, 11:00:30 AM

4" gun is not strong enough vs enemy DDs, 140mm is better.

I SS 2000t DD with 140mm guns & better AA armament:
=> PomPom are coming :)

SD13, Byzantine Empire Super Destroyer laid down 1927

Displacement:
   2 000 t light; 2 115 t standard; 2 460 t normal; 2 735 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (403,73 ft / 400,26 ft) x 39,37 ft x (13,20 / 14,18 ft)
   (123,06 m / 122,00 m) x 12,00 m x (4,02 / 4,32 m)

Armament:
6 - 5,51" / 140 mm 50,0 cal guns - 81,99lbs / 37,19kg shells, 200 per gun
     Quick firing guns in deck mounts, 1927 Model
     3 x Twin mounts on centreline ends, majority forward
      1 raised mount - superfiring
8 - 1,57" / 40,0 mm 39,0 cal guns - 2,01lbs / 0,91kg shells, 1 000 per gun
     Anti-air guns in deck mounts, 1927 Model
     4 x Twin mounts on sides, evenly spread
      4 raised mounts
12 - 0,50" / 12,7 mm 62,0 cal guns - 0,07lbs / 0,03kg shells, 6 000 per gun
     Machine guns in deck mounts, 1927 Model
     6 x 2-gun mounts on side ends, majority forward
      6 raised mounts
Weight of broadside 509 lbs / 231 kg

Armour:
- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,59" / 15 mm     -           -
   3rd:   0,39" / 10 mm     -           -
   4th:   0,39" / 10 mm     -           -

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 45 000 shp / 33 570 Kw = 32,89 kts
   Range 10 000nm at 12,00 kts
   Bunker at max displacement = 620 tons

Complement:
   174 - 227

Cost:
   £0,990 million / $3,959 million

Distribution of weights at normal displacement:
   Armament: 88 tons, 3,6 %
     - Guns: 88 tons, 3,6 %
   Armour: 10 tons, 0,4 %
     - Armament: 10 tons, 0,4 %
   Machinery: 1 236 tons, 50,2 %
   Hull, fittings & equipment: 559 tons, 22,7 %
   Fuel, ammunition & stores: 460 tons, 18,7 %
   Miscellaneous weights: 106 tons, 4,3 %
     - Hull above water: 8 tons
     - On freeboard deck: 64 tons
     - Above deck: 34 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     651 lbs / 295 Kg = 7,8 x 5,5 " / 140 mm shells or 0,4 torpedoes
   Stability (Unstable if below 1.00): 1,32
   Metacentric height 2,0 ft / 0,6 m
   Roll period: 11,6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,29
   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): 0,414 / 0,428
   Length to Beam Ratio: 10,17 : 1
   'Natural speed' for length: 20,01 kts
   Power going to wave formation at top speed: 63 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   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 %, 19,69 ft / 6,00 m, 16,73 ft / 5,10 m
     - Forward deck:   32,50 %, 16,73 ft / 5,10 m, 13,78 ft / 4,20 m
     - Aft deck:   32,50 %, 13,78 ft / 4,20 m, 13,12 ft / 4,00 m
     - Quarter deck:   17,50 %, 13,12 ft / 4,00 m, 13,78 ft / 4,20 m
     - Average freeboard:      14,82 ft / 4,52 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 175,3 %
      - Above water (accommodation/working, high = better): 153,7 %
   Waterplane Area: 9 784 Square feet or 909 Square metres
   Displacement factor (Displacement / loading): 76 %
   Structure weight / hull surface area: 35 lbs/sq ft or 173 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 1,14
      - Overall: 0,54
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

9t for 1924 top mast rangefinder
25t for LR Marconi

32t for 2x4TTx533HW
15t for improved Hydrophone
5t for 50x90DC
12t reserved for new material, armament, minen.

8t for climatisation
-----------------
4200nm@15kts
Trial speed: 33,5kts
Bonus: 0.66

Jefgte · July 04, 2023, 10:28:43 AM

I like this one :)

8000t Panzerschiff, Byzantine Empire 2T3x234 laid down 1927

Displacement:
   8 000 t light; 8 451 t standard; 9 235 t normal; 9 862 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (573,52 ft / 570,87 ft) x 64,86 ft x (20,11 / 21,05 ft)
   (174,81 m / 174,00 m) x 19,77 m x (6,13 / 6,42 m)

Armament:
6 - 9,21" / 234 mm 46,6 cal guns - 380,01lbs / 172,37kg shells, 150 per gun
     Breech loading guns in turret on barbette mounts, 1928 Model
     2 x Triple mounts on centreline ends, evenly spread
12 - 4,72" / 120 mm 45,0 cal guns - 50,00lbs / 22,68kg shells, 200 per gun
     Quick firing guns in deck mounts, 1928 Model
     6 x 2-gun mounts on sides, evenly spread
8 - 1,57" / 40,0 mm 39,0 cal guns - 2,01lbs / 0,91kg shells, 1 000 per gun
     Anti-air guns in deck mounts, 1928 pompom Model
     8 x Single mounts on side ends, evenly spread
      8 raised mounts
8 - 0,50" / 12,7 mm 62,0 cal guns - 0,07lbs / 0,03kg shells, 4 000 per gun
     Machine guns in deck mounts, 1928 Model
     8 x Single mounts on side ends, evenly spread
      8 raised mounts
Weight of broadside 2 897 lbs / 1 314 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3,94" / 100 mm   370,73 ft / 113,00 m   9,84 ft / 3,00 m
   Ends:   1,18" / 30 mm   200,13 ft / 61,00 m   7,87 ft / 2,40 m
   Upper:   1,18" / 30 mm   370,73 ft / 113,00 m   9,19 ft / 2,80 m
     Main Belt covers 100 % of normal length

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   6,69" / 170 mm   2,56" / 65 mm      4,92" / 125 mm
   2nd:   0,39" / 10 mm     -           -
   3rd:   0,39" / 10 mm     -           -
   4th:   0,39" / 10 mm     -           -

- Armoured deck - single deck:
   For and Aft decks: 1,77" / 45 mm
   Forecastle: 1,18" / 30 mm Quarter deck: 1,18" / 30 mm

- Conning towers: Forward 6,69" / 170 mm, Aft 3,94" / 100 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 62 000 shp / 46 252 Kw = 30,00 kts
   Range 10 000nm at 12,00 kts
   Bunker at max displacement = 1 411 tons

Complement:
   470 - 612

Cost:
   £2,986 million / $11,945 million

Distribution of weights at normal displacement:
   Armament: 676 tons, 7,3 %
     - Guns: 676 tons, 7,3 %
   Armour: 1 937 tons, 21,0 %
     - Belts: 830 tons, 9,0 %
     - Armament: 280 tons, 3,0 %
     - Armour Deck: 726 tons, 7,9 %
     - Conning Towers: 101 tons, 1,1 %
   Machinery: 1 957 tons, 21,2 %
   Hull, fittings & equipment: 3 190 tons, 34,5 %
   Fuel, ammunition & stores: 1 235 tons, 13,4 %
   Miscellaneous weights: 239 tons, 2,6 %
     - Hull below water: 40 tons
     - Hull above water: 40 tons
     - On freeboard deck: 66 tons
     - Above deck: 93 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     9 490 lbs / 4 305 Kg = 24,3 x 9,2 " / 234 mm shells or 1,6 torpedoes
   Stability (Unstable if below 1.00): 1,11
   Metacentric height 3,2 ft / 1,0 m
   Roll period: 15,3 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,48
   Seaboat quality (Average = 1.00): 1,07

Hull form characteristics:
   Hull has a flush deck,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0,434 / 0,443
   Length to Beam Ratio: 8,80 : 1
   'Natural speed' for length: 23,89 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 66
   Bow angle (Positive = bow angles forward): 7,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   17,00 %, 21,65 ft / 6,60 m, 18,04 ft / 5,50 m
     - Forward deck:   33,50 %, 18,04 ft / 5,50 m, 14,76 ft / 4,50 m
     - Aft deck:   33,50 %, 14,76 ft / 4,50 m, 14,44 ft / 4,40 m
     - Quarter deck:   16,00 %, 14,44 ft / 4,40 m, 14,44 ft / 4,40 m
     - Average freeboard:      16,01 ft / 4,88 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 97,2 %
      - Above water (accommodation/working, high = better): 146,5 %
   Waterplane Area: 23 322 Square feet or 2 167 Square metres
   Displacement factor (Displacement / loading): 107 %
   Structure weight / hull surface area: 103 lbs/sq ft or 503 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,87
      - Longitudinal: 1,16
      - Overall: 0,90
   Caution: Hull subject to strain in open-sea
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

AD
68t for top fire control
25t for Marconi
OD
24t for 2x3TTx21" HW
25t for 1 seaplane & cata
17t reserved
AW/BW
40t for climatisation
40t for additionnal pumps

The Rock Doctor · July 04, 2023, 01:45:45 PM

Not bad, not bad.

Kaiser Kirk · July 04, 2023, 02:19:08 PM

It's interesting.
Composite hull needs to be 1.0, not 0.9.
For all years, Cruisers with turrets shall have a composite hull strength > 1.0.

I was going to mutter about the 0.434 BC, but with nearly 20m it's just really pointy at the ends.
With only 2 main battery mounts in 'B' and 'X' that should work fine. Von Der Taan did the same.

Certainly would argue against building more 6000t Moulek class..shame I liked those.
Same 'size class' as my Royal Niesan cruisers
Good speed.
The guns are larger than I've been planning for, that would be painful, I'm not sure where they would penetrate my 50mm decks.
You have slightly thinner belts and decks... not sure what that means for vulnerability one vs. the other.
Rate of fire with triples is a little lower, and 6x 234 vs. 12 x 180 is a lot lower.