Logi's Design Studies

Started by Logi, November 19, 2008, 07:10:23 PM

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TexanCowboy

Much more. Mounts hurt on SS as bad as T&B. Stick with deck mounts and add more speed.

Logi

Version A: +FCS and 1 knot
QuoteBiao Zhun She Ji 004, RRC TorpedoBoat Destroyer laid down 1918 (Engine 1916)

Displacement:
   1,000 t light; 1,053 t standard; 1,138 t normal; 1,206 t full load

Dimensions: Length overall / water x beam x draught
   375.00 ft / 375.00 ft x 34.10 ft x 8.00 ft (normal load)
   114.30 m / 114.30 m x 10.39 m  x 2.44 m

Armament:
      5 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1918 Model
     Quick firing guns in deck mounts
     on centreline ends, majority aft, 2 raised mounts - superfiring
      4 - 0.98" / 25.0 mm guns (2x2 guns), 0.48lbs / 0.22kg shells, 1918 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 266 lbs / 120 kg
   Shells per gun, main battery: 200
   12 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm         -               -

   - Conning tower: 1.00" / 25 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 21,873 shp / 16,317 Kw = 31.00 kts
   Range 3,000nm at 12.00 kts
   Bunker at max displacement = 154 tons

   Trial Speed = 31 kts

Complement:
   97 - 127

Cost:
   £0.276 million / $1.103 million

Distribution of weights at normal displacement:
   Armament: 33 tons, 2.9 %
   Armour: 16 tons, 1.4 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 13 tons, 1.2 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 2 tons, 0.2 %
   Machinery: 536 tons, 47.1 %
   Hull, fittings & equipment: 367 tons, 32.2 %
   Fuel, ammunition & stores: 138 tons, 12.1 %
   Miscellaneous weights: 49 tons, 4.3 %
-12t Torpedoes in Tube (12)
-12t Reserve Torpedoes (12)
-25t Fire-Control System

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     360 lbs / 163 Kg = 6.8 x 4.7 " / 120 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.31
   Metacentric height 1.6 ft / 0.5 m
   Roll period: 11.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.24
   Seaboat quality  (Average = 1.00): 1.06

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.389
   Length to Beam Ratio: 11.00 : 1
   'Natural speed' for length: 19.36 kts
   Power going to wave formation at top speed: 58 %
   Trim (Max stability = 0, Max steadiness = 100): 66
   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:      21.00 ft / 6.40 m
      - Forecastle (15 %):   17.00 ft / 5.18 m
      - Mid (50 %):      14.00 ft / 4.27 m (9.00 ft / 2.74 m aft of break)
      - Quarterdeck (10 %):   9.00 ft / 2.74 m
      - Stern:      9.00 ft / 2.74 m
      - Average freeboard:   12.72 ft / 3.88 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 179.5 %
      - Above water (accommodation/working, high = better): 65.4 %
   Waterplane Area: 7,828 Square feet or 727 Square metres
   Displacement factor (Displacement / loading): 58 %
   Structure weight / hull surface area: 29 lbs/sq ft or 140 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 0.95
      - 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

Version B: +FCS and +1900nm @ 12kts
QuoteBiao Zhun She Ji 004, RRC TorpedoBoat Destroyer laid down 1918 (Engine 1916)

Displacement:
   1,000 t light; 1,054 t standard; 1,194 t normal; 1,306 t full load

Dimensions: Length overall / water x beam x draught
   375.00 ft / 375.00 ft x 34.10 ft x 8.00 ft (normal load)
   114.30 m / 114.30 m x 10.39 m  x 2.44 m

Armament:
      5 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1918 Model
     Quick firing guns in deck mounts
     on centreline ends, majority aft, 2 raised mounts - superfiring
      4 - 0.98" / 25.0 mm guns (2x2 guns), 0.48lbs / 0.22kg shells, 1918 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 266 lbs / 120 kg
   Shells per gun, main battery: 200
   12 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm         -               -

   - Conning tower: 1.00" / 25 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 19,962 shp / 14,891 Kw = 30.00 kts
   Range 4,900nm at 12.00 kts
   Bunker at max displacement = 252 tons

   Trial Speed = 31 kts

Complement:
   101 - 132

Cost:
   £0.277 million / $1.108 million

Distribution of weights at normal displacement:
   Armament: 33 tons, 2.8 %
   Armour: 16 tons, 1.3 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 13 tons, 1.1 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 2 tons, 0.2 %
   Machinery: 540 tons, 45.2 %
   Hull, fittings & equipment: 363 tons, 30.4 %
   Fuel, ammunition & stores: 194 tons, 16.2 %
   Miscellaneous weights: 49 tons, 4.1 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     411 lbs / 186 Kg = 7.8 x 4.7 " / 120 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.41
   Metacentric height 1.8 ft / 0.6 m
   Roll period: 10.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 67 %
         - Recoil effect (Restricted arc if above 1.00): 0.21
   Seaboat quality  (Average = 1.00): 1.12

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.409
   Length to Beam Ratio: 11.00 : 1
   'Natural speed' for length: 19.36 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 60
   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:      21.00 ft / 6.40 m
      - Forecastle (15 %):   17.00 ft / 5.18 m
      - Mid (50 %):      14.00 ft / 4.27 m (9.00 ft / 2.74 m aft of break)
      - Quarterdeck (10 %):   9.00 ft / 2.74 m
      - Stern:      9.00 ft / 2.74 m
      - Average freeboard:   12.72 ft / 3.88 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 172.4 %
      - Above water (accommodation/working, high = better): 63.4 %
   Waterplane Area: 7,912 Square feet or 735 Square metres
   Displacement factor (Displacement / loading): 66 %
   Structure weight / hull surface area: 28 lbs/sq ft or 137 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 0.89
      - Overall: 0.53
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped

Tanthalas

Version B, but personaly id ditch the FC, it realy isnt worth much on DDS at this point.
"He either fears his fate too much,
Or his desserts are small,
Who dares not put it to the touch,
To win or lose it all!"

James Graham, 5th Earl of Montrose
1612 to 1650
Royalist General during the English Civil War

Sachmle

Quote from: Tanthalas on October 15, 2009, 08:49:07 PM
Version B, but personaly id ditch the FC, it realy isnt worth much on DDS at this point.

W/ 5 guns it's worth it, IMHO.
"All treaties between great states cease to be binding when they come in conflict with the struggle for existence."
Otto von Bismarck

"Give me a woman who loves beer and I will conquer the world."
Kaiser Wilhelm

"If stupidity were painfull I would be deaf from all the screaming." Sam A. Grim

Logi

This time its a monitor:

QuoteBinFa, Republic Light Cruiser laid down 1918 (Engine 1916)

Displacement:
   1,000 t light; 1,068 t standard; 1,189 t normal; 1,286 t full load

Dimensions: Length overall / water x beam x draught
   230.00 ft / 230.00 ft x 38.00 ft x 8.00 ft (normal load)
   70.10 m / 70.10 m x 11.58 m  x 2.44 m

Armament:
      2 - 7.68" / 195 mm guns (1x2 guns), 226.24lbs / 102.62kg shells, 1918 Model
     Breech loading guns in a deck mount with hoist
     on centreline amidships
      4 - 2.95" / 75.0 mm guns (2x2 guns), 12.87lbs / 5.84kg shells, 1918 Model
     Quick firing guns in deck mounts
     on side, all aft
      4 - 0.98" / 25.0 mm guns (2x2 guns), 0.48lbs / 0.22kg shells, 1918 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 506 lbs / 229 kg
   Shells per gun, main battery: 150
   6 - 21.0" / 533.4 mm submerged torpedo tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2.00" / 51 mm   150.00 ft / 45.72 m   11.00 ft / 3.35 m
   Ends:   Unarmoured
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   3.00" / 76 mm   2.00" / 51 mm      3.00" / 76 mm
   2nd:   1.00" / 25 mm   1.00" / 25 mm            -
   3rd:   1.00" / 25 mm         -               -

   - Armour deck: 1.50" / 38 mm, Conning tower: 2.00" / 51 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 1,400 shp / 1,045 Kw = 14.00 kts
   Range 4,000nm at 12.00 kts
   Bunker at max displacement = 218 tons

Complement:
   100 - 131

Cost:
   £0.191 million / $0.763 million

Distribution of weights at normal displacement:
   Armament: 63 tons, 5.3 %
   Armour: 362 tons, 30.4 %
      - Belts: 145 tons, 12.2 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 35 tons, 2.9 %
      - Armour Deck: 177 tons, 14.9 %
      - Conning Tower: 5 tons, 0.4 %
   Machinery: 52 tons, 4.4 %
   Hull, fittings & equipment: 486 tons, 40.9 %
   Fuel, ammunition & stores: 189 tons, 15.9 %
   Miscellaneous weights: 37 tons, 3.1 %
-25t FCS
-6t Torpedoes in Tube (6)
-6t Reserve Torpedoes

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,634 lbs / 741 Kg = 7.2 x 7.7 " / 195 mm shells or 0.8 torpedoes
   Stability (Unstable if below 1.00): 1.45
   Metacentric height 2.2 ft / 0.7 m
   Roll period: 10.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.21
   Seaboat quality  (Average = 1.00): 1.02

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.595
   Length to Beam Ratio: 6.05 : 1
   'Natural speed' for length: 15.17 kts
   Power going to wave formation at top speed: 43 %
   Trim (Max stability = 0, Max steadiness = 100): 49
   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:      7.00 ft / 2.13 m
      - Forecastle (20 %):   6.00 ft / 1.83 m
      - Mid (50 %):      6.00 ft / 1.83 m
      - Quarterdeck (15 %):   6.00 ft / 1.83 m
      - Stern:      7.00 ft / 2.13 m
      - Average freeboard:   6.16 ft / 1.88 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 83.7 %
      - Above water (accommodation/working, high = better): 72.7 %
   Waterplane Area: 6,364 Square feet or 591 Square metres
   Displacement factor (Displacement / loading): 118 %
   Structure weight / hull surface area: 62 lbs/sq ft or 303 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.98
      - Longitudinal: 1.19
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is cramped

Logi

And a 500t DD:

Arrangement is basically 2 in the front, one superfiring:
2 in the center separated by the funnels:
1 on the quarterdeck.

QuoteA-Class, RRC Destroyer laid down 1918 (Engine 1916)

Displacement:
   500 t light; 521 t standard; 601 t normal; 665 t full load

Dimensions: Length overall / water x beam x draught
   269.50 ft / 263.00 ft x 23.90 ft x 7.99 ft (normal load)
   82.14 m / 80.16 m x 7.28 m  x 2.44 m

Armament:
      2 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1917 Model
     Quick firing guns in deck mounts
     on centreline, all forward, 1 raised mount
      2 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1917 Model
     Quick firing guns in deck mounts
     on centreline, evenly spread
      1 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1917 Model
     Quick firing gun in deck mount
     on centreline aft, 1 raised gun
      4 - 0.98" / 25.0 mm guns (2x2 guns), 0.48lbs / 0.22kg shells, 1917 Model
     Breech loading guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 66 lbs / 30 kg
   Shells per gun, main battery: 200
   6 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.50" / 13 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 15,580 shp / 11,623 Kw = 30.00 kts
   Range 4,324nm at 12.00 kts
   Bunker at max displacement = 144 tons

Complement:
   59 - 78

Cost:
   £0.123 million / $0.490 million

Distribution of weights at normal displacement:
   Armament: 8 tons, 1.4 %
   Armour: 1 tons, 0.2 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 1 tons, 0.2 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 307 tons, 51.0 %
   Hull, fittings & equipment: 172 tons, 28.5 %
   Fuel, ammunition & stores: 101 tons, 16.8 %
   Miscellaneous weights: 12 tons, 2.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     155 lbs / 70 Kg = 12.0 x 3.0 " / 75 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.11
   Metacentric height 0.7 ft / 0.2 m
   Roll period: 11.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.21
   Seaboat quality  (Average = 1.00): 0.88

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.419
   Length to Beam Ratio: 11.00 : 1
   'Natural speed' for length: 16.22 kts
   Power going to wave formation at top speed: 67 %
   Trim (Max stability = 0, Max steadiness = 100): 79
   Bow angle (Positive = bow angles forward): 18.45 degrees
   Stern overhang: 1.50 ft / 0.46 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      15.00 ft / 4.57 m
      - Forecastle (20 %):   12.00 ft / 3.66 m
      - Mid (51 %):      9.00 ft / 2.74 m
      - Quarterdeck (10 %):   9.00 ft / 2.74 m
      - Stern:      9.00 ft / 2.74 m
      - Average freeboard:   10.31 ft / 3.14 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 178.1 %
      - Above water (accommodation/working, high = better): 41.8 %
   Waterplane Area: 3,915 Square feet or 364 Square metres
   Displacement factor (Displacement / loading): 48 %
   Structure weight / hull surface area: 22 lbs/sq ft or 110 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.55
      - Overall: 0.56
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is extremely poor
   Ship has slow, easy roll, a good, steady gun platform
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Trial Speed: 32.5 knots

Misc Weights:
12 tons: 12 - 21" Torpedoes

Range at max speed: 339 nm, 11.3 hours
Range at 28.5 knots: 401 nm, 14.1 hours
Range at 25 knots: 607 nm, 24.3 hours
Range at 20 knots: 1174 nm
Range at 15 knots: 2529 nm
Seakeeping at 28.5 knots: 1.01

Logi

A design on paper what an RRC 2000t DD with 1921 engines would be like.

QuoteModernized, Republic Destroyer laid down 1921

Displacement:
   2,000 t light; 2,093 t standard; 2,308 t normal; 2,480 t full load

Dimensions: Length overall / water x beam x draught
   393.00 ft / 386.00 ft x 42.90 ft x 12.00 ft (normal load)
   119.79 m / 117.65 m x 13.08 m  x 3.66 m

Armament:
      8 - 4.72" / 120 mm guns (4x2 guns), 52.72lbs / 23.92kg shells, 1921 Model
     Quick firing guns in deck mounts with hoists
     on centreline ends, evenly spread, 2 raised mounts - superfiring
   Weight of broadside 422 lbs / 191 kg
   Shells per gun, main battery: 200
   9 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm         -         1.00" / 25 mm

   - Conning tower: 2.00" / 51 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 45,437 shp / 33,896 Kw = 33.00 kts
   Range 6,000nm at 12.00 kts
   Bunker at max displacement = 386 tons

Complement:
   166 - 216

Cost:
   £0.726 million / $2.905 million

Distribution of weights at normal displacement:
   Armament: 53 tons, 2.3 %
   Armour: 27 tons, 1.2 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 19 tons, 0.8 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 8 tons, 0.3 %
   Machinery: 1,222 tons, 52.9 %
   Hull, fittings & equipment: 622 tons, 27.0 %
   Fuel, ammunition & stores: 308 tons, 13.3 %
   Miscellaneous weights: 77 tons, 3.3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     503 lbs / 228 Kg = 9.5 x 4.7 " / 120 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.35
   Metacentric height 2.4 ft / 0.7 m
   Roll period: 11.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.28
   Seaboat quality  (Average = 1.00): 0.73

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.407
   Length to Beam Ratio: 9.00 : 1
   'Natural speed' for length: 19.65 kts
   Power going to wave formation at top speed: 65 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   Bow angle (Positive = bow angles forward): 14.03 degrees
   Stern overhang: 1.00 ft / 0.30 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      24.00 ft / 7.32 m
      - Forecastle (20 %):   19.00 ft / 5.79 m
      - Mid (50 %):      15.00 ft / 4.57 m (10.00 ft / 3.05 m aft of break)
      - Quarterdeck (15 %):   9.00 ft / 2.74 m
      - Stern:      10.00 ft / 3.05 m
      - Average freeboard:   14.05 ft / 4.28 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 192.3 %
      - Above water (accommodation/working, high = better): 95.2 %
   Waterplane Area: 10,233 Square feet or 951 Square metres
   Displacement factor (Displacement / loading): 63 %
   Structure weight / hull surface area: 39 lbs/sq ft or 191 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 0.90
      - Overall: 0.53
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Trial Speed: 33.5 knots

Misc Weights: 77t
25 tons: DD FCS
25 tons: Long-Range Wireless
24 tons: 2t Torpedoes + Reloads
2 tons: 6 Depth Charges
1 tons: 1 Depth Charge Thrower

Range at max speed: 395 nm, 12 hours
Range at 28.5 knots: 628 nm, 22 hours
Range at 25 knots: 932 nm, 37.3 hours
Range at 20 knots: 1743 nm, 87.2 hours
Range at 15 knots: 3601 nm, 240.1 hours
Seakeeping at 28.5 knots: 1.02

Logi

A "pocket" cruiser.

QuoteHao Class, RRC Pocket Cruiser laid down 1918 (Engine 1916)

Displacement:
   5,000 t light; 5,239 t standard; 5,677 t normal; 6,028 t full load

Dimensions: Length overall / water x beam x draught
   500.00 ft / 500.00 ft x 52.65 ft x 17.00 ft (normal load)
   152.40 m / 152.40 m x 16.05 m  x 5.18 m

Armament:
      8 - 7.68" / 195 mm guns in single mounts, 226.24lbs / 102.62kg shells, 1918 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread, 4 raised mounts - superfiring
      4 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1918 Model
     Quick firing guns in deck mounts
     on side, evenly spread
   Weight of broadside 1,861 lbs / 844 kg
   Shells per gun, main battery: 120
   6 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   5.00" / 127 mm   350.00 ft / 106.68 m   8.00 ft / 2.44 m
   Ends:   Unarmoured
     Main Belt covers 108 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.00" / 127 mm         -               -
   2nd:   1.00" / 25 mm         -               -

   - Armour deck: 1.00" / 25 mm, Conning tower: 5.00" / 127 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 31,673 shp / 23,628 Kw = 27.00 kts
   Range 6,000nm at 12.00 kts
   Bunker at max displacement = 789 tons

Complement:
   326 - 425

Cost:
   £1.071 million / $4.285 million

Distribution of weights at normal displacement:
   Armament: 233 tons, 4.1 %
   Armour: 1,114 tons, 19.6 %
      - Belts: 577 tons, 10.2 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 194 tons, 3.4 %
      - Armour Deck: 309 tons, 5.4 %
      - Conning Tower: 34 tons, 0.6 %
   Machinery: 1,180 tons, 20.8 %
   Hull, fittings & equipment: 2,310 tons, 40.7 %
   Fuel, ammunition & stores: 677 tons, 11.9 %
   Miscellaneous weights: 163 tons, 2.9 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5,568 lbs / 2,526 Kg = 24.6 x 7.7 " / 195 mm shells or 1.2 torpedoes
   Stability (Unstable if below 1.00): 1.04
   Metacentric height 2.0 ft / 0.6 m
   Roll period: 15.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.68
   Seaboat quality  (Average = 1.00): 1.02

Hull form characteristics:
   Hull has rise aft of midbreak
   Block coefficient: 0.444
   Length to Beam Ratio: 9.50 : 1
   'Natural speed' for length: 22.36 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      18.00 ft / 5.49 m
      - Forecastle (20 %):   16.00 ft / 4.88 m
      - Mid (50 %):      9.00 ft / 2.74 m (14.00 ft / 4.27 m aft of break)
      - Quarterdeck (15 %):   9.00 ft / 2.74 m
      - Stern:      9.00 ft / 2.74 m
      - Average freeboard:   12.49 ft / 3.81 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 101.8 %
      - Above water (accommodation/working, high = better): 98.4 %
   Waterplane Area: 16,711 Square feet or 1,552 Square metres
   Displacement factor (Displacement / loading): 103 %
   Structure weight / hull surface area: 94 lbs/sq ft or 457 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.99
      - Longitudinal: 1.01
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform

Guinness

Stability seems low. Also, did you mean for the main battery to be in singles?

Logi

#339
Sorry, may bad. This is how it was meant to be:

QuoteHao Class, RRC Pocket Cruiser laid down 1918 (Engine 1916)

Displacement:
   5,000 t light; 5,230 t standard; 5,668 t normal; 6,019 t full load

Dimensions: Length overall / water x beam x draught
   500.00 ft / 500.00 ft x 55.55 ft x 18.00 ft (normal load)
   152.40 m / 152.40 m x 16.93 m  x 5.49 m

Armament:
      8 - 7.48" / 190 mm guns (4x2 guns), 209.28lbs / 94.93kg shells, 1918 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      4 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1918 Model
     Quick firing guns in deck mounts
     on side, evenly spread
   Weight of broadside 1,726 lbs / 783 kg
   Shells per gun, main battery: 120
   6 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   4.00" / 102 mm   350.00 ft / 106.68 m   8.00 ft / 2.44 m
   Ends:   Unarmoured
     Main Belt covers 108 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   4.00" / 102 mm         -         3.00" / 76 mm
   2nd:   1.00" / 25 mm         -               -

   - Armour deck: 1.00" / 25 mm, Conning tower: 5.00" / 127 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 26,957 shp / 20,110 Kw = 26.00 kts
   Range 6,000nm at 12.00 kts
   Bunker at max displacement = 789 tons

Complement:
   326 - 424

Cost:
   £0.994 million / $3.974 million

Distribution of weights at normal displacement:
   Armament: 216 tons, 3.8 %
   Armour: 1,070 tons, 18.9 %
      - Belts: 461 tons, 8.1 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 259 tons, 4.6 %
      - Armour Deck: 316 tons, 5.6 %
      - Conning Tower: 34 tons, 0.6 %
   Machinery: 1,004 tons, 17.7 %
   Hull, fittings & equipment: 2,540 tons, 44.8 %
   Fuel, ammunition & stores: 668 tons, 11.8 %
   Miscellaneous weights: 169 tons, 3.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     6,938 lbs / 3,147 Kg = 33.2 x 7.5 " / 190 mm shells or 1.4 torpedoes
   Stability (Unstable if below 1.00): 1.09
   Metacentric height 2.5 ft / 0.7 m
   Roll period: 14.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.55
   Seaboat quality  (Average = 1.00): 1.24

Hull form characteristics:
   Hull has rise aft of midbreak
   Block coefficient: 0.397
   Length to Beam Ratio: 9.00 : 1
   'Natural speed' for length: 22.36 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 56
   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:      20.00 ft / 6.10 m
      - Forecastle (20 %):   17.00 ft / 5.18 m
      - Mid (50 %):      10.00 ft / 3.05 m (15.00 ft / 4.57 m aft of break)
      - Quarterdeck (15 %):   10.00 ft / 3.05 m
      - Stern:      10.00 ft / 3.05 m
      - Average freeboard:   13.57 ft / 4.13 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 89.9 %
      - Above water (accommodation/working, high = better): 110.0 %
   Waterplane Area: 17,067 Square feet or 1,586 Square metres
   Displacement factor (Displacement / loading): 114 %
   Structure weight / hull surface area: 100 lbs/sq ft or 488 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.28
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

Logi


Sachmle

Decent size, economical price, good firepower, slow, above average armor.
"All treaties between great states cease to be binding when they come in conflict with the struggle for existence."
Otto von Bismarck

"Give me a woman who loves beer and I will conquer the world."
Kaiser Wilhelm

"If stupidity were painfull I would be deaf from all the screaming." Sam A. Grim

Logi

Tried to fit as many torps as possible on the ship without encounter a deckspace problem. Is it useful?

QuoteFuzhou Class, RRC Large Torpedo Curiser laid down 1950

Displacement:
   3,500 t light; 3,647 t standard; 3,874 t normal; 4,055 t full load

Dimensions: Length overall / water x beam x draught
   393.00 ft / 393.00 ft x 49.10 ft x 17.00 ft (normal load)
   119.79 m / 119.79 m x 14.97 m  x 5.18 m

Armament:
      5 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1950 Model
     Breech loading guns in deck mounts
     on centreline ends, majority forward, 3 raised mounts - superfiring
      2 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1950 Model
     Breech loading guns in deck mounts
     on centreline, evenly spread, all raised mounts
   Weight of broadside 611 lbs / 277 kg
   Shells per gun, main battery: 200
   18 - 21.0" / 533.4 mm above water torpedoes, 15 - 21.0" / 533.4 mm submerged torpedo tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2.00" / 51 mm   393.00 ft / 119.79 m   12.00 ft / 3.66 m
   Ends:   Unarmoured
     Main Belt covers 154 % of normal length
     Main belt does not fully cover magazines and engineering spaces

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm         -               -
   2nd:   0.50" / 13 mm         -               -

   - Conning tower: 2.00" / 51 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 56,121 shp / 41,866 Kw = 32.00 kts
   Range 6,000nm at 12.00 kts
   Bunker at max displacement = 408 tons

Complement:
   245 - 319

Cost:
   £2.929 million / $11.714 million

Distribution of weights at normal displacement:
   Armament: 76 tons, 2.0 %
   Armour: 379 tons, 9.8 %
      - Belts: 349 tons, 9.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 20 tons, 0.5 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 11 tons, 0.3 %
   Machinery: 1,343 tons, 34.7 %
   Hull, fittings & equipment: 1,633 tons, 42.1 %
   Fuel, ammunition & stores: 374 tons, 9.7 %
   Miscellaneous weights: 69 tons, 1.8 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,533 lbs / 695 Kg = 14.2 x 6.0 " / 152 mm shells or 0.4 torpedoes
   Stability (Unstable if below 1.00): 1.27
   Metacentric height 2.7 ft / 0.8 m
   Roll period: 12.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.18
   Seaboat quality  (Average = 1.00): 1.09

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.413
   Length to Beam Ratio: 8.00 : 1
   'Natural speed' for length: 19.82 kts
   Power going to wave formation at top speed: 66 %
   Trim (Max stability = 0, Max steadiness = 100): 46
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      27.00 ft / 8.23 m
      - Forecastle (20 %):   22.00 ft / 6.71 m
      - Mid (50 %):      18.00 ft / 5.49 m
      - Quarterdeck (15 %):   16.00 ft / 4.88 m
      - Stern:      16.00 ft / 4.88 m
      - Average freeboard:   19.15 ft / 5.84 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 193.0 %
      - Above water (accommodation/working, high = better): 61.1 %
   Waterplane Area: 11,976 Square feet or 1,113 Square metres
   Displacement factor (Displacement / loading): 103 %
   Structure weight / hull surface area: 75 lbs/sq ft or 365 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.86
      - Longitudinal: 3.54
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped

Sachmle

Muthafawker...datsa lota torpedos
"All treaties between great states cease to be binding when they come in conflict with the struggle for existence."
Otto von Bismarck

"Give me a woman who loves beer and I will conquer the world."
Kaiser Wilhelm

"If stupidity were painfull I would be deaf from all the screaming." Sam A. Grim

Kaiser Kirk



My interpretation of things.
at 15m beam, the torps are going to be side mounted, not centerline.
Which means 3 tubes along port and starboard. They are 6-8m each, so about 20% of your waterline length. I can't map it out, but guess they would fit.

The submerged torps have another problem. I put them on my Cruiser, but thats because Bavarian designers are a bit behind the times.  From what I understand, they passed from use because they couldn't be used at higher speeds.  So unless you want to slow to 20-23kts, not much help.
Further, they were a problem with underwater explosions. Both because there was better chance of leaks where the tubes are,  and because the torpedo flat made a dandy large floodable space clear across the ship.

In 1950, which is the lay down date, the problems from near-miss bombs opening seams would be well known and submerged tubes likely a no-no.

The guns are fine. But in 1950, the lack of more AAGs is inexcusable.

I see the belt is the length of the waterline, but still fails to cover. Looking at % hull space below water it's 193 %.  I intepret that as a large amount of critical machinery extending above the waterline. There is no armor deck on top of the belt, and a 50mm belt won't stop much more than HE round with a fairly flat trajectory- not the threat envelope likely to see in 1950. The belt is worthless.

It's a very sharp, cramped hull, which will have trouble with maintaining decent levels of operational effiancy on longer cruises. Worse, by time she is built, 32 knts isn't all that fast, and she will be vulnerable to guns/missles/planes at range long before her torpedoes are viable.

Did they beat the drum slowly,
Did they play the fife lowly,
Did they sound the death march, as they lowered you down,
Did the band play the last post and chorus,
Did the pipes play the flowers of the forest