Vilnius Union Ships, 1911 - 1919

[The Rock Doctor]

Apparently this is about 3,700 nm @ 15 knots, compared to a Fletchers's 5,500 (though it's obvious a much later and heavier ship than what I've got).

Point taken on endurance.

[TacCovert4]

The high speed range is something I'll have to review as well.  For now it is what it is until I get geared drives and the generally improved 1920s ss3b ships. 

That said,  the F class will probably take that into account.

[The Rock Doctor]

I suppose moving to geared drives here is a no-brainer.

*Makes notes for other new classes*

[Jefgte]

Building a FLETCHER in 1919-20 on a 1500t hull is impossible, you have to balance your choices...
Guns, torpedoes, speed, range.
Place the 4 sliders however you want without creating glaring weakness.

;)

[The Rock Doctor]

Oh, for sure.  I was just comparing to a WW2 era ship build with carrier ops in mind.

[Kaiser Kirk]

Building a FLETCHER in 1919-20 on a 1500t hull is impossible, you have to balance your choices...
Guns, torpedoes, speed, range.
Place the 4 sliders however you want without creating glaring weakness.

;)

I don't think the Byzantine navy should restrict itself to the demands of physics or some silly model.
The Byzantines should be trailblazers who ignore the glaring weakness and build them anyway !
-A concerned potential foe.

[The Rock Doctor]

Just ignore the fact that I have no quadruple 25cm turret in service and work with me here.

Enter ship name, Enter country Enter ship type laid down 1920

Displacement:
   39,969 t light; 41,853 t standard; 44,170 t normal; 46,022 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (811.01 ft / 787.40 ft) x 104.99 ft x (31.17 / 32.24 ft)
   (247.20 m / 240.00 m) x 32.00 m  x (9.50 / 9.83 m)

Armament:
      5 - 15.75" / 400 mm 45.0 cal guns - 1,969.41lbs / 893.31kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1920 Model
     1 x 2-gun mount on centreline, forward deck forward
     1 x 3-gun mount on centreline, forward deck centre
      1 raised mount
      4 - 9.84" / 250 mm 45.0 cal guns - 480.81lbs / 218.09kg shells, 150 per gun
     Breech loading guns in turret on barbette mount, 1920 Model
     1 x 4-gun mount on centreline, aft deck forward
      1 double raised mount
      28 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1920 Model
     2 x Twin mounts on centreline, aft deck aft
      1 raised mount - superfiring
     12 x 2-gun mounts on sides, evenly spread
      12 - 3.94" / 100 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 150 per gun
     Anti-air guns in deck mounts, 1920 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
     8 x Single mounts on sides, evenly spread
      8 double raised mounts
      Weight of broadside 14,033 lbs / 6,365 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13.8" / 350 mm   511.81 ft / 156.00 m   16.11 ft / 4.91 m
   Ends:   Unarmoured
     Main Belt covers 100 % of normal length
     Main Belt inclined -12.00 degrees (positive = in)

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      3.94" / 100 mm   511.81 ft / 156.00 m   29.40 ft / 8.96 m
   Beam between torpedo bulkheads 91.86 ft / 28.00 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   15.7" / 400 mm   7.87" / 200 mm      15.7" / 400 mm
   2nd:   9.84" / 250 mm   5.91" / 150 mm      9.84" / 250 mm
   3rd:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   4th:   0.79" / 20 mm   0.39" / 10 mm            -

   - Armoured deck - multiple decks:
   For and Aft decks: 3.94" / 100 mm
   Forecastle: 3.94" / 100 mm  Quarter deck: 3.94" / 100 mm

   - Conning towers: Forward 13.78" / 350 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 160,857 shp / 120,000 Kw = 30.11 kts
   Range 15,000nm at 10.00 kts
   Bunker at max displacement = 4,169 tons

Complement:
   1,523 - 1,980

Cost:
   £8.230 million / $32.921 million

Distribution of weights at normal displacement:
   Armament: 3,056 tons, 6.9 %
      - Guns: 3,056 tons, 6.9 %
   Armour: 15,067 tons, 34.1 %
      - Belts: 4,854 tons, 11.0 %
      - Torpedo bulkhead: 2,192 tons, 5.0 %
      - Armament: 3,211 tons, 7.3 %
      - Armour Deck: 4,439 tons, 10.1 %
      - Conning Tower: 371 tons, 0.8 %
   Machinery: 5,624 tons, 12.7 %
   Hull, fittings & equipment: 15,255 tons, 34.5 %
   Fuel, ammunition & stores: 4,201 tons, 9.5 %
   Miscellaneous weights: 966 tons, 2.2 %
      - Hull above water: 200 tons
      - On freeboard deck: 335 tons
      - Above deck: 431 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     61,063 lbs / 27,698 Kg = 31.3 x 15.7 " / 400 mm shells or 10.5 torpedoes
   Stability (Unstable if below 1.00): 1.13
   Metacentric height 6.8 ft / 2.1 m
   Roll period: 16.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.52
   Seaboat quality  (Average = 1.00): 1.05

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.600 / 0.604
   Length to Beam Ratio: 7.50 : 1
   'Natural speed' for length: 28.06 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 48
   Bow angle (Positive = bow angles forward): 30.00 degrees
   Stern overhang: 6.56 ft / 2.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  29.53 ft / 9.00 m,  24.28 ft / 7.40 m
      - Forward deck:   30.00 %,  24.28 ft / 7.40 m,  19.69 ft / 6.00 m
      - Aft deck:   35.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Quarter deck:   15.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Average freeboard:      21.71 ft / 6.62 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 79.4 %
      - Above water (accommodation/working, high = better): 156.9 %
   Waterplane Area: 60,461 Square feet or 5,617 Square metres
   Displacement factor (Displacement / loading): 111 %
   Structure weight / hull surface area: 202 lbs/sq ft or 986 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.23
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room

[Desertfox]

I love it! Although that is an insane amount of secondaries and TB.

[The Rock Doctor]

It is, but that's me conforming to the sketch.

I believe it is actually a post-WW2 Soviet concept with 18" and 9.2".  I'm not certain what the tertiary battery would be in that case, so just went with my own 130s.

[eltf177]

It is, but that's me conforming to the sketch.

I believe it is actually a post-WW2 Soviet concept with 18" and 9.2".  I'm not certain what the tertiary battery would be in that case, so just went with my own 130s.

The quad turret aft is actually 7.1-inch. IIRC the twin mounts were 57mm AA...

[The Rock Doctor]

That would make sense, thanks.

[The Rock Doctor]

The Union has over a hundred Type 1895 harbour patrol boats in service, doing basic customs/coastal patrol work in its many ports.  With a top speed of nine knots, they're showing their age.

A new series of harbour patrol boats will start construction in 1919.  They carry the same minimal armament, have just enough deck space to fit in a boarding team, and can travel a longer distance with a top speed of over twelve knots - still not fast enough to fight warships, but good enough to catch up to most civilian craft.

One imagines these will get jammed end-to-end-to-end in a couple of large docks rather than being built in a bunch of small ones, particularly since the Union has a lot of those tied up with MTBs.

Enter ship name, Enter country Enter ship type laid down 1919

Displacement:
   27 t light; 28 t standard; 29 t normal; 29 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (63.20 ft / 59.06 ft) x 11.48 ft x (2.95 / 2.99 ft)
   (19.26 m / 18.00 m) x 3.50 m  x (0.90 / 0.91 m)

Armament:
      1 - 1.97" / 50.0 mm 45.0 cal gun - 3.85lbs / 1.74kg shells, 100 per gun
     Quick firing gun in deck mount, 1919 Model
     1 x Single mount on centreline, forward deck centre
      3 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 4,000 per gun
     Machine guns in deck mounts, 1919 Model
     2 x Single mounts on sides amidships
     1 x Single mount on centreline, aft deck centre
      Weight of broadside 4 lbs / 2 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.79" / 20 mm   0.12" / 3 mm            -

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 1 shaft, 161 ihp / 120 Kw = 12.66 kts
   Range 200nm at 8.00 kts
   Bunker at max displacement = 1 tons (90% coal)

Complement:
   6 - 8

Cost:
   £0.006 million / $0.023 million

Distribution of weights at normal displacement:
   Armament: 1 tons, 3.3 %
      - Guns: 1 tons, 3.3 %
   Armour: 1 tons, 4.1 %
      - Armament: 1 tons, 4.1 %
   Machinery: 10 tons, 36.1 %
   Hull, fittings & equipment: 12 tons, 40.6 %
   Fuel, ammunition & stores: 2 tons, 5.4 %
   Miscellaneous weights: 3 tons, 10.5 %
      - On freeboard deck: 3 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     31 lbs / 14 Kg = 8.1 x 2.0 " / 50 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.14
   Metacentric height 0.2 ft / 0.1 m
   Roll period: 9.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.14
   Seaboat quality  (Average = 1.00): 1.07

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.500 / 0.502
   Length to Beam Ratio: 5.14 : 1
   'Natural speed' for length: 7.68 kts
   Power going to wave formation at top speed: 72 %
   Trim (Max stability = 0, Max steadiness = 100): 65
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 1.64 ft / 0.50 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   25.00 %,  6.89 ft / 2.10 m,  5.91 ft / 1.80 m
      - Forward deck:   25.00 %,  5.91 ft / 1.80 m,  4.92 ft / 1.50 m
      - Aft deck:   35.00 %,  4.92 ft / 1.50 m,  4.92 ft / 1.50 m
      - Quarter deck:   15.00 %,  4.92 ft / 1.50 m,  4.92 ft / 1.50 m
      - Average freeboard:      5.39 ft / 1.64 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 126.1 %
      - Above water (accommodation/working, high = better): 70.7 %
   Waterplane Area: 434 Square feet or 40 Square metres
   Displacement factor (Displacement / loading): 105 %
   Structure weight / hull surface area: 14 lbs/sq ft or 68 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.76
      - Longitudinal: 11.02
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

[Desertfox]

If you made them bigger you could probably fit them under aux rules. You'd get a better boat for less.

[The Rock Doctor]

I suppose that may be true.  Although I have to sacrifice the gun armor to stay under 2% of normal.

It does cost lest, but I need more dock space.

Enter ship name, Enter country Enter ship type laid down 1919

Displacement:
   47 t light; 48 t standard; 50 t normal; 51 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (86.53 ft / 82.02 ft) x 13.12 ft x (2.95 / 3.01 ft)
   (26.37 m / 25.00 m) x 4.00 m  x (0.90 / 0.92 m)

Armament:
      1 - 1.97" / 50.0 mm 45.0 cal gun - 3.85lbs / 1.74kg shells, 100 per gun
     Quick firing gun in deck mount, 1919 Model
     1 x Single mount on centreline, forward deck centre
      3 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 4,000 per gun
     Machine guns in deck mounts, 1919 Model
     2 x Single mounts on sides amidships
     1 x Single mount on centreline, aft deck centre
      Weight of broadside 4 lbs / 2 kg

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 1 shaft, 295 ihp / 220 Kw = 14.04 kts
   Range 270nm at 10.00 kts
   Bunker at max displacement = 3 tons (90% coal)

Complement:
   9 - 12

Cost:
   £0.010 million / $0.040 million

Distribution of weights at normal displacement:
   Armament: 1 tons, 1.9 %
      - Guns: 1 tons, 1.9 %
   Machinery: 19 tons, 37.9 %
   Hull, fittings & equipment: 22 tons, 44.2 %
   Fuel, ammunition & stores: 3 tons, 6.0 %
   Miscellaneous weights: 5 tons, 10.0 %
      - On freeboard deck: 5 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     58 lbs / 26 Kg = 15.2 x 2.0 " / 50 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.16
   Metacentric height 0.3 ft / 0.1 m
   Roll period: 9.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.09
   Seaboat quality  (Average = 1.00): 1.27

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.550 / 0.553
   Length to Beam Ratio: 6.25 : 1
   'Natural speed' for length: 9.06 kts
   Power going to wave formation at top speed: 67 %
   Trim (Max stability = 0, Max steadiness = 100): 55
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 1.64 ft / 0.50 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   25.00 %,  7.87 ft / 2.40 m,  6.89 ft / 2.10 m
      - Forward deck:   25.00 %,  6.89 ft / 2.10 m,  5.91 ft / 1.80 m
      - Aft deck:   35.00 %,  5.91 ft / 1.80 m,  5.91 ft / 1.80 m
      - Quarter deck:   15.00 %,  5.91 ft / 1.80 m,  5.91 ft / 1.80 m
      - Average freeboard:      6.37 ft / 1.94 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 128.0 %
      - Above water (accommodation/working, high = better): 94.2 %
   Waterplane Area: 729 Square feet or 68 Square metres
   Displacement factor (Displacement / loading): 110 %
   Structure weight / hull surface area: 16 lbs/sq ft or 76 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.78
      - Longitudinal: 8.56
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[The Rock Doctor]

Alright, Mr. Fox, it seems you win that argument.