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Royal Navy 1903 onwards

Started by Darman, March 21, 2016, 10:56:45 AM

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Darman

So... I'm finishing my 1903 reports and news and I need a transport ship design.  Let me know what you think of this design

Vickers, United Kingdom Troopship laid down 1902 (Engine 1900)

Displacement:
   7,282 t light; 7,464 t standard; 9,108 t normal; 10,423 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (400.00 ft / 400.00 ft) x 42.00 ft x (25.00 / 28.24 ft)
   (121.92 m / 121.92 m) x 12.80 m  x (7.62 / 8.61 m)

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 3,205 ihp / 2,391 Kw = 13.00 kts
   Range 7,000nm at 13.00 kts
   Bunker at max displacement = 2,959 tons (100% coal)

Complement:
   466 - 606

Cost:
   £0.325 million / $1.300 million

Distribution of weights at normal displacement:
   Armament: 0 tons, 0.0 %
   Machinery: 501 tons, 5.5 %
   Hull, fittings & equipment: 1,664 tons, 18.3 %
   Fuel, ammunition & stores: 1,826 tons, 20.0 %
   Miscellaneous weights: 5,117 tons, 56.2 %
      - Hull below water: 2,400 tons
      - Hull above water: 2,400 tons
      - On freeboard deck: 277 tons
      - Above deck: 40 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     9,726 lbs / 4,412 Kg = 90.1 x 6 " / 152 mm shells or 1.6 torpedoes
   Stability (Unstable if below 1.00): 1.00
   Metacentric height 1.4 ft / 0.4 m
   Roll period: 15.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 96 %
         - Recoil effect (Restricted arc if above 1.00): 0.00
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has raised forecastle, raised quarterdeck ,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.759 / 0.769
   Length to Beam Ratio: 9.52 : 1
   'Natural speed' for length: 20.00 kts
   Power going to wave formation at top speed: 28 %
   Trim (Max stability = 0, Max steadiness = 100): 48
   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:   20.00 %,  21.00 ft / 6.40 m,  21.00 ft / 6.40 m
      - Forward deck:   30.00 %,  14.00 ft / 4.27 m,  14.00 ft / 4.27 m
      - Aft deck:   35.00 %,  14.00 ft / 4.27 m,  14.00 ft / 4.27 m
      - Quarter deck:   15.00 %,  21.00 ft / 6.40 m,  21.00 ft / 6.40 m
      - Average freeboard:      16.45 ft / 5.01 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 75.7 %
      - Above water (accommodation/working, high = better): 81.2 %
   Waterplane Area: 14,198 Square feet or 1,319 Square metres
   Displacement factor (Displacement / loading): 149 %
   Structure weight / hull surface area: 63 lbs/sq ft or 306 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 1.91
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, rides out heavy weather easily

25t above deck for wireless
15t above deck for boat equipment
10t on deck for boat equipment
67t on deck for 6 9-ton 37-ft steam pinnaces
Transport Capacity (5,000t for 2,500 troops)
200t on deck for officers quarters
2400 below waterline
2400 above waterline

Cost
7,280/4= 1820t per vessel

Darman

Dreadnought, United Kingdom Battleship laid down 1904 (Engine 1905)

Displacement:
   19,971 t light; 20,966 t standard; 22,300 t normal; 23,367 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (525.00 ft / 525.00 ft) x 85.00 ft x (29.00 / 30.14 ft)
   (160.02 m / 160.02 m) x 25.91 m  x (8.84 / 9.19 m)

Armament:
      10 - 12.00" / 305 mm 40.0 cal guns - 828.07lbs / 375.61kg shells, 80 per gun
     Breech loading guns in turret on barbette mounts, 1904 Model
     3 x Twin mounts on centreline ends, majority aft
      1 raised mount aft - superfiring
     2 x Twin mounts on sides, forward deck centre
      12 - 6.00" / 152 mm 45.0 cal guns - 108.92lbs / 49.41kg shells, 250 per gun
     Breech loading guns in casemate mounts, 1893 Model
     12 x Single mounts on sides, evenly spread
      Weight of broadside 9,588 lbs / 4,349 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   11.0" / 279 mm   341.00 ft / 103.94 m   16.00 ft / 4.88 m
   Ends:   5.00" / 127 mm   184.00 ft / 56.08 m   16.00 ft / 4.88 m
   Upper:   5.00" / 127 mm   341.00 ft / 103.94 m   8.00 ft / 2.44 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13.0" / 330 mm   6.00" / 152 mm      11.0" / 279 mm
   2nd:   5.00" / 127 mm   5.00" / 127 mm            -

   - Armoured deck - single deck: 2.50" / 64 mm For and Aft decks
   Forecastle: 1.50" / 38 mm  Quarter deck: 1.50" / 38 mm

   - Conning towers: Forward 10.00" / 254 mm,  Aft 0.00" / 0 mm

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 4 shafts, 32,972 ihp / 24,597 Kw = 21.50 kts
   Range 6,500nm at 10.00 kts
   Bunker at max displacement = 2,400 tons (90% coal)

Complement:
   912 - 1,186

Cost:
   £2.110 million / $8.441 million

Distribution of weights at normal displacement:
   Armament: 1,503 tons, 6.7 %
   Armour: 7,210 tons, 32.3 %
      - Belts: 3,784 tons, 17.0 %
      - Armament: 1,843 tons, 8.3 %
      - Armour Deck: 1,412 tons, 6.3 %
      - Conning Tower: 171 tons, 0.8 %
   Machinery: 4,731 tons, 21.2 %
   Hull, fittings & equipment: 6,342 tons, 28.4 %
   Fuel, ammunition & stores: 2,329 tons, 10.4 %
   Miscellaneous weights: 185 tons, 0.8 %
      - On freeboard deck: 160 tons
      - Above deck: 25 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     20,282 lbs / 9,200 Kg = 23.5 x 12.0 " / 305 mm shells or 2.2 torpedoes
   Stability (Unstable if below 1.00): 1.24
   Metacentric height 5.8 ft / 1.8 m
   Roll period: 14.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 63 %
         - Recoil effect (Restricted arc if above 1.00): 0.47
   Seaboat quality  (Average = 1.00): 1.26

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.603 / 0.608
   Length to Beam Ratio: 6.18 : 1
   'Natural speed' for length: 22.91 kts
   Power going to wave formation at top speed: 49 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  24.00 ft / 7.32 m,  24.00 ft / 7.32 m
      - Forward deck:   30.00 %,  15.00 ft / 4.57 m,  15.00 ft / 4.57 m
      - Aft deck:   35.00 %,  15.00 ft / 4.57 m,  15.00 ft / 4.57 m
      - Quarter deck:   15.00 %,  15.00 ft / 4.57 m,  15.00 ft / 4.57 m
      - Average freeboard:      16.80 ft / 5.12 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 99.7 %
      - Above water (accommodation/working, high = better): 102.5 %
   Waterplane Area: 32,733 Square feet or 3,041 Square metres
   Displacement factor (Displacement / loading): 93 %
   Structure weight / hull surface area: 151 lbs/sq ft or 737 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.52
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is adequate
   Good seaboat, rides out heavy weather easily

Turrets: APQXY (a la Dreadnought OTL)
Superfiring main battery turret is A turret so its level with forecastle

Misc Weight
160t torpedo netting on deck
25t LR wireless above deck

Kaiser Kirk

Quote from: Darman on March 21, 2016, 10:56:45 AM
So... I'm finishing my 1903 reports and news and I need a transport ship design.  Let me know what you think of this design


I find it funny we both wound up making transports at the same time :)
I think putting cruise speed = max speed is  erroneous.
Esp with coal-fired ships, you're going to have to cycle boilers to remove clinker build up,
and with Triple expansion you're lucky to run on full power for a day.
here you have 22 days of steaming at max speed- not going to happen.
I'd say put cruise speed at something that  uses a smaller % of maximum shp.

BC at 0.759 is more freighter like, but ok.
67t on deck for 6 9-ton 37-ft steam pinnaces.... rule in Design rules is 2x tonnage. So 6x9 =54 x 2 = 108t needed.
I'd trim a couple feet off the length so she fits in T1 ways,
I'd make her more beamy and less drafty, allowing her to go into more waters and harbors.

As for Dreadnaught, hmm, she's a big'un.
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

Darman

Xperimental, United Kingdom Hospital Ship laid down 1902 (Engine 1900)

Displacement:
   6,899 t light; 7,062 t standard; 8,167 t normal; 9,052 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (454.00 ft / 454.00 ft) x 45.00 ft x (24.00 / 26.10 ft)
   (138.38 m / 138.38 m) x 13.72 m  x (7.32 / 7.96 m)

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 6,036 ihp / 4,503 Kw = 16.00 kts
   Range 5,000nm at 13.00 kts
   Bunker at max displacement = 1,990 tons (100% coal)

Complement:
   429 - 558

Cost:
   £0.373 million / $1.494 million

Distribution of weights at normal displacement:
   Armament: 0 tons, 0.0 %
   Machinery: 943 tons, 11.5 %
   Hull, fittings & equipment: 1,816 tons, 22.2 %
   Fuel, ammunition & stores: 1,269 tons, 15.5 %
   Miscellaneous weights: 4,140 tons, 50.7 %
      - Hull below water: 500 tons
      - Hull above water: 3,300 tons
      - On freeboard deck: 290 tons
      - Above deck: 50 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,390 lbs / 1,991 Kg = 40.6 x 6 " / 152 mm shells or 0.6 torpedoes
   Stability (Unstable if below 1.00): 0.86
   Metacentric height 1.1 ft / 0.3 m
   Roll period: 18.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 98 %
         - Recoil effect (Restricted arc if above 1.00): 0.00
   Seaboat quality  (Average = 1.00): 1.97

Hull form characteristics:
   Hull has raised forecastle, raised quarterdeck ,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.583 / 0.594
   Length to Beam Ratio: 10.09 : 1
   'Natural speed' for length: 21.31 kts
   Power going to wave formation at top speed: 30 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  22.00 ft / 6.71 m,  22.00 ft / 6.71 m
      - Forward deck:   30.00 %,  14.00 ft / 4.27 m,  14.00 ft / 4.27 m
      - Aft deck:   35.00 %,  14.00 ft / 4.27 m,  14.00 ft / 4.27 m
      - Quarter deck:   15.00 %,  22.00 ft / 6.71 m,  22.00 ft / 6.71 m
      - Average freeboard:      16.80 ft / 5.12 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 88.5 %
      - Above water (accommodation/working, high = better): 91.4 %
   Waterplane Area: 14,706 Square feet or 1,366 Square metres
   Displacement factor (Displacement / loading): 136 %
   Structure weight / hull surface area: 65 lbs/sq ft or 319 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.68
      - Overall: 1.00
   Caution: Poor stability - excessive risk of capsizing
   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
   Excellent seaboat, comfortable, rides out heavy weather easily

25t above deck for wireless
25t above deck for boat equipment
77t on deck for 6 9-ton 37-ft steam pinnaces
Medical Equippage
500t below water level
     *quarters for 75 medical personnel (150t)
     *medical stores (175t)
     *morge (100t)
     *additional food-stores for special diets/wounded (75t)
3,300t above water level
     *wards containing beds for 650 patients (2,600t)
     *3 operating rooms (300t)
     *quarantine wards containing beds for 100 patients (400t)
213t deck level
     *Rehabilition rooms for 50 officers (213t)

civilian specs
6,900t/4= 1725t total

Darman

Let me know what you guys think of this.  I've been trying very hard to make it as small as possible. 

Vickers, United Kingdom Troopship laid down 1902 (Engine 1905)

Displacement:
   3,544 t light; 3,633 t standard; 4,470 t normal; 5,139 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (300.00 ft / 300.00 ft) x 33.00 ft x (20.00 / 22.72 ft)
   (91.44 m / 91.44 m) x 10.06 m  x (6.10 / 6.92 m)

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 3,685 ihp / 2,749 Kw = 15.00 kts
   Range 7,000nm at 12.00 kts
   Bunker at max displacement = 1,506 tons (100% coal)

Complement:
   273 - 355

Cost:
   £0.199 million / $0.795 million

Distribution of weights at normal displacement:
   Armament: 0 tons, 0.0 %
   Machinery: 534 tons, 11.9 %
   Hull, fittings & equipment: 895 tons, 20.0 %
   Fuel, ammunition & stores: 926 tons, 20.7 %
   Miscellaneous weights: 2,115 tons, 47.3 %
      - Hull below water: 900 tons
      - Hull above water: 1,100 tons
      - On freeboard deck: 70 tons
      - Above deck: 45 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,236 lbs / 1,922 Kg = 39.2 x 6 " / 152 mm shells or 0.9 torpedoes
   Stability (Unstable if below 1.00): 0.99
   Metacentric height 0.9 ft / 0.3 m
   Roll period: 14.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.00
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has raised forecastle, raised quarterdeck ,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.790 / 0.800
   Length to Beam Ratio: 9.09 : 1
   'Natural speed' for length: 17.32 kts
   Power going to wave formation at top speed: 43 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  21.00 ft / 6.40 m,  21.00 ft / 6.40 m
      - Forward deck:   30.00 %,  14.00 ft / 4.27 m,  14.00 ft / 4.27 m
      - Aft deck:   35.00 %,  14.00 ft / 4.27 m,  14.00 ft / 4.27 m
      - Quarter deck:   15.00 %,  21.00 ft / 6.40 m,  21.00 ft / 6.40 m
      - Average freeboard:      16.45 ft / 5.01 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 87.9 %
      - Above water (accommodation/working, high = better): 84.3 %
   Waterplane Area: 8,625 Square feet or 801 Square metres
   Displacement factor (Displacement / loading): 140 %
   Structure weight / hull surface area: 48 lbs/sq ft or 236 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.86
      - Longitudinal: 3.76
      - Overall: 1.00
   Caution: Poor stability - excessive risk of capsizing
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, rides out heavy weather easily

25t above deck for wireless
20t above deck for boat equipment
70t on deck for boats and equipment (5 9-ton 37-foot steam pinnaces)
900t below waterline for troops
1100t above waterline for troops
1,000 troops total
Cost
3,544/4=886t

Darman

Vickers, United Kingdom Troopship laid down 1902 (Engine 1905)

Displacement:
   3,500 t light; 3,588 t standard; 4,418 t normal; 5,082 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (300.00 ft / 300.00 ft) x 33.00 ft x (20.00 / 22.72 ft)
   (91.44 m / 91.44 m) x 10.06 m  x (6.10 / 6.92 m)

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 3,653 ihp / 2,725 Kw = 15.00 kts
   Range 7,000nm at 12.00 kts
   Bunker at max displacement = 1,494 tons (100% coal)

Complement:
   270 - 352

Cost:
   £0.197 million / $0.786 million

Distribution of weights at normal displacement:
   Armament: 0 tons, 0.0 %
   Machinery: 529 tons, 12.0 %
   Hull, fittings & equipment: 855 tons, 19.4 %
   Fuel, ammunition & stores: 918 tons, 20.8 %
   Miscellaneous weights: 2,115 tons, 47.9 %
      - Hull below water: 900 tons
      - Hull above water: 1,100 tons
      - On freeboard deck: 70 tons
      - Above deck: 45 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,109 lbs / 1,864 Kg = 38.0 x 6 " / 152 mm shells or 0.9 torpedoes
   Stability (Unstable if below 1.00): 0.99
   Metacentric height 0.9 ft / 0.3 m
   Roll period: 14.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.00
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has raised forecastle, raised quarterdeck ,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.781 / 0.791
   Length to Beam Ratio: 9.09 : 1
   'Natural speed' for length: 17.32 kts
   Power going to wave formation at top speed: 43 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  20.00 ft / 6.10 m,  20.00 ft / 6.10 m
      - Forward deck:   30.00 %,  13.00 ft / 3.96 m,  13.00 ft / 3.96 m
      - Aft deck:   35.00 %,  13.00 ft / 3.96 m,  13.00 ft / 3.96 m
      - Quarter deck:   15.00 %,  20.00 ft / 6.10 m,  20.00 ft / 6.10 m
      - Average freeboard:      15.45 ft / 4.71 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 88.5 %
      - Above water (accommodation/working, high = better): 78.4 %
   Waterplane Area: 8,549 Square feet or 794 Square metres
   Displacement factor (Displacement / loading): 139 %
   Structure weight / hull surface area: 48 lbs/sq ft or 237 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.87
      - Longitudinal: 3.18
      - Overall: 1.00
   Caution: Poor stability - excessive risk of capsizing
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, rides out heavy weather easily

25t above deck for wireless
20t above deck for boat equipment
70t on deck for boats and equipment (5 9-ton 37-foot steam pinnaces)
900t below waterline for troops
1100t above waterline for troops
1,000 troops total
Cost
3500/4=875t

Darman

#6
Vickers, United Kingdom Troopship laid down 1902 (Engine 1905)

Displacement:
   3,400 t light; 3,486 t standard; 4,300 t normal; 4,951 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (300.00 ft / 300.00 ft) x 34.00 ft x (20.00 / 22.70 ft)
   (91.44 m / 91.44 m) x 10.36 m  x (6.10 / 6.92 m)

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 3,573 ihp / 2,665 Kw = 15.00 kts
   Range 7,000nm at 12.00 kts
   Bunker at max displacement = 1,465 tons (100% coal)

Complement:
   265 - 345

Cost:
   £0.191 million / $0.766 million

Distribution of weights at normal displacement:
   Armament: 0 tons, 0.0 %
   Machinery: 518 tons, 12.0 %
   Hull, fittings & equipment: 767 tons, 17.8 %
   Fuel, ammunition & stores: 900 tons, 20.9 %
   Miscellaneous weights: 2,115 tons, 49.2 %
      - Hull below water: 900 tons
      - Hull above water: 1,100 tons
      - On freeboard deck: 70 tons
      - Above deck: 45 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,760 lbs / 1,705 Kg = 34.8 x 6 " / 152 mm shells or 0.9 torpedoes
   Stability (Unstable if below 1.00): 1.02
   Metacentric height 1.0 ft / 0.3 m
   Roll period: 14.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.00
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has raised forecastle, raised quarterdeck ,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.738 / 0.749
   Length to Beam Ratio: 8.82 : 1
   'Natural speed' for length: 17.32 kts
   Power going to wave formation at top speed: 43 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  17.00 ft / 5.18 m,  17.00 ft / 5.18 m
      - Forward deck:   30.00 %,  10.00 ft / 3.05 m,  10.00 ft / 3.05 m
      - Aft deck:   35.00 %,  10.00 ft / 3.05 m,  10.00 ft / 3.05 m
      - Quarter deck:   15.00 %,  17.00 ft / 5.18 m,  17.00 ft / 5.18 m
      - Average freeboard:      12.45 ft / 3.79 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 90.0 %
      - Above water (accommodation/working, high = better): 60.8 %
   Waterplane Area: 8,452 Square feet or 785 Square metres
   Displacement factor (Displacement / loading): 136 %
   Structure weight / hull surface area: 50 lbs/sq ft or 244 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 1.91
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, rides out heavy weather easily

25t above deck for wireless
20t above deck for boat equipment
70t on deck for boats and equipment (5 9-ton 37-foot steam pinnaces)
900t below waterline for troops
1100t above waterline for troops
1,000 troops total
Cost
3400/4=850t

The Rock Doctor

Stability's an ongoing problem - try adjusting the trim downward and seeing if you can knock stability up to 1.05 or 1.10.

Darman

I'll give it a try.  Thanks. 

Darman

Here is an idea I had for a customs gunboat.  Designed for policing colonial ports and waterways. 

Bouncer, United Kingdom Customs Gunboat laid down 1904 (Engine 1905)

Displacement:
   160 t light; 166 t standard; 170 t normal; 173 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (90.00 ft / 90.00 ft) x 20.00 ft x (6.00 / 6.09 ft)
   (27.43 m / 27.43 m) x 6.10 m  x (1.83 / 1.86 m)

Armament:
      2 - 3.00" / 76.2 mm 50.0 cal guns - 14.29lbs / 6.48kg shells, 100 per gun
     Quick firing guns in deck mounts, 1896 Model
     1 x Single mount on centreline, forward deck forward
     1 x Single mount on centreline, aft deck aft
      2 - 1.85" / 47.0 mm 45.0 cal guns - 3.19lbs / 1.45kg shells, 150 per gun
     Quick firing guns in deck mounts, 1890 Model
     2 x Single mounts on sides, forward deck aft
      Weight of broadside 35 lbs / 16 kg

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

Machinery:
   Coal and oil fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 154 ihp / 115 Kw = 10.00 kts
   Range 500nm at 8.00 kts
   Bunker at max displacement = 8 tons (90% coal)

Complement:
   23 - 30

Cost:
   £0.011 million / $0.045 million

Distribution of weights at normal displacement:
   Armament: 7 tons, 4.4 %
   Armour: 4 tons, 2.6 %
      - Armament: 4 tons, 2.6 %
   Machinery: 26 tons, 15.2 %
   Hull, fittings & equipment: 51 tons, 30.3 %
   Fuel, ammunition & stores: 10 tons, 5.7 %
   Miscellaneous weights: 71 tons, 41.8 %
      - Hull above water: 20 tons
      - On freeboard deck: 26 tons
      - Above deck: 25 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     296 lbs / 134 Kg = 21.9 x 3.0 " / 76 mm shells or 0.4 torpedoes
   Stability (Unstable if below 1.00): 1.08
   Metacentric height 0.5 ft / 0.2 m
   Roll period: 11.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.24
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has raised forecastle, raised quarterdeck ,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.550 / 0.552
   Length to Beam Ratio: 4.50 : 1
   'Natural speed' for length: 9.49 kts
   Power going to wave formation at top speed: 54 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  9.00 ft / 2.74 m,  9.00 ft / 2.74 m
      - Forward deck:   30.00 %,  7.00 ft / 2.13 m,  7.00 ft / 2.13 m
      - Aft deck:   35.00 %,  7.00 ft / 2.13 m,  7.00 ft / 2.13 m
      - Quarter deck:   15.00 %,  9.00 ft / 2.74 m,  9.00 ft / 2.74 m
      - Average freeboard:      7.70 ft / 2.35 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 73.9 %
      - Above water (accommodation/working, high = better): 72.8 %
   Waterplane Area: 1,256 Square feet or 117 Square metres
   Displacement factor (Displacement / loading): 117 %
   Structure weight / hull surface area: 27 lbs/sq ft or 130 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.88
      - Longitudinal: 7.57
      - Overall: 1.09
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Misc Weight
15t above deck for SR wireless
10t above deck boat equipment
26t on deck for 2x9-ton 37-ft armed pinnaces
20t hull above water for 10 extra sailors for pinnaces

Potential Names
Bouncer
Insolent

Darman

Fishing Trawler design.  Designed specifically for sale to private entities with an eye to acquisition during wartime for military purposes. 

Battle-class, United Kingdom Trawler laid down 1904 (Engine 1905)

Displacement:
   476 t light; 489 t standard; 648 t normal; 775 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (130.00 ft / 130.00 ft) x 23.50 ft x (13.50 / 15.65 ft)
   (39.62 m / 39.62 m) x 7.16 m  x (4.11 / 4.77 m)

Armament:
      1 - 3.00" / 76.2 mm 50.0 cal gun - 14.29lbs / 6.48kg shells, 100 per gun
     Quick firing gun in deck mount, 1904 Model
     1 x Single mount on centreline, forward deck forward
      1 raised mount
      Weight of broadside 14 lbs / 6 kg

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

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 1 shaft, 616 ihp / 459 Kw = 12.00 kts
   Range 6,000nm at 10.00 kts
   Bunker at max displacement = 286 tons (100% coal)

Complement:
   63 - 83

Cost:
   £0.032 million / $0.128 million

Distribution of weights at normal displacement:
   Armament: 3 tons, 0.5 %
   Armour: 2 tons, 0.3 %
      - Armament: 2 tons, 0.3 %
   Machinery: 104 tons, 16.1 %
   Hull, fittings & equipment: 122 tons, 18.8 %
   Fuel, ammunition & stores: 173 tons, 26.6 %
   Miscellaneous weights: 244 tons, 37.6 %
      - Hull below water: 75 tons
      - Hull above water: 56 tons
      - On freeboard deck: 93 tons
      - Above deck: 20 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     699 lbs / 317 Kg = 51.8 x 3.0 " / 76 mm shells or 0.6 torpedoes
   Stability (Unstable if below 1.00): 1.04
   Metacentric height 0.6 ft / 0.2 m
   Roll period: 12.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 82 %
         - Recoil effect (Restricted arc if above 1.00): 0.06
   Seaboat quality  (Average = 1.00): 1.64

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.550 / 0.567
   Length to Beam Ratio: 5.53 : 1
   'Natural speed' for length: 11.40 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  12.00 ft / 3.66 m,  11.00 ft / 3.35 m
      - Forward deck:   30.00 %,  8.00 ft / 2.44 m,  6.00 ft / 1.83 m
      - Aft deck:   35.00 %,  6.00 ft / 1.83 m,  7.00 ft / 2.13 m
      - Quarter deck:   15.00 %,  7.00 ft / 2.13 m,  7.00 ft / 2.13 m
      - Average freeboard:      7.71 ft / 2.35 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 76.2 %
      - Above water (accommodation/working, high = better): 42.1 %
   Waterplane Area: 2,068 Square feet or 192 Square metres
   Displacement factor (Displacement / loading): 140 %
   Structure weight / hull surface area: 32 lbs/sq ft or 155 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.85
      - Longitudinal: 4.30
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is extremely poor
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Misc Weight
15t above deck SR wireless
5t above deck for boat equipment
19t on deck for 2x 6-ton 21-ft pinnaces
16t hull above water for 8 extra sailors for pinnaces
75t hull below water cargo space
40t hull above water cargo space
74t on deck fishing equipment

Named for battles in Portugal during the Peninsular Campaign
Rolica
Vimeiro
Sahagun
Cacabelos
Corunna
Grijo
2nd Porto
Talavera
Coa
Bucaco
Barossa
Albuera
Fuentes de Onoro

Walter

The Bouncer makes me thing a bit of my RG-1 class. Main differences being that my design is smaller, 10 years older, the engines are 15 years older but of a more 'modern' type, is 83cm less deep and has an armored hull and deck against small arms fire. Sure the RG-1's seaboat rating is about 47% of Bouncer's but it is more than enough for where it is operating.

With the Battle-class Fishing Trawler, no doubt that 3" guns is used for fishing as well. :)

Darman

I figured that the simple reciprocating engines would be easier to maintain on colonial stations.  And also that Britain's colonial ports wouldn't be rivers like China's gunboats are built for, but are designed as short-range harbor patrol vessels. 

Quote from: Walter on March 27, 2016, 07:39:47 AM
With the Battle-class Fishing Trawler, no doubt that 3" guns is used for fishing as well. :)

Absolutely!  How else would you expect the fishing vessels to kill Moby Dick????

Walter

QuoteI figured that the simple reciprocating engines would be easier to maintain on colonial stations.
I think triple expansion might be okay as well for colonial stations.
QuoteAnd also that Britain's colonial ports wouldn't be rivers like China's gunboats are built for, but are designed as short-range harbor patrol vessels.
Harbor, not open seas and oceans. I would think that between 1.00 and 1.10 could be more than enough for such a vessel.
QuoteAbsolutely!  How else would you expect the fishing vessels to kill Moby Dick?
With Assassin's Creed: Black Flag, I have killed numerous Moby Dick-like whales... and there was no need for any guns. Just a bunch of harpoons. :)


Darman

Quote from: Walter on March 27, 2016, 10:35:41 PM
QuoteI figured that the simple reciprocating engines would be easier to maintain on colonial stations.
I think triple expansion might be okay as well for colonial stations.
I'll change it and see what I get.  Will probably try to improve seakeeping too.  Trying to keep it under 200t. 

Quote
QuoteAbsolutely!  How else would you expect the fishing vessels to kill Moby Dick?
With Assassin's Creed: Black Flag, I have killed numerous Moby Dick-like whales... and there was no need for any guns. Just a bunch of harpoons. :)
Just call it a giant harpoon gun then ;)