Vilnius Union Ships, 1911 - 1919

[Jefgte]

... I'll make the move to something larger when I'm happy with those numbers.

... And when I''ll have 1500t DD techno.

;)

[The Rock Doctor]

... I'll make the move to something larger when I'm happy with those numbers.

... And when I''ll have 1500t DD techno.

;)

I think I'll have it for 1917, I'm just going for hull numbers at the moment.

[Jefgte]

I'm just going for hull numbers at the moment.

How many Fleet DD did you have  for the moment ?

=> With the same criteria as Byzantium (mini 25kts & 100mm guns)

44 Fleet DDs

[The Rock Doctor]

I'm just going for hull numbers at the moment.

How many Fleet DD did you have  for the moment ?

Realistically, the 30 K-class and the 16 L-class (once they're all done in 1916).  The other hundred or so boats are all short-legged coastal defence things.

[TacCovert4]

True.  My speeds are good but not amazing.  At least for the dds.  And I'm specialized more for now as I need the most potent gunfighter dds I can get.  Your route makes perfect sense. 

[Desertfox]

I am definitely going for numbers plus gunfighting potential, so I'm just stuffing 4x5" + gatlings on 800t and less.

[The Rock Doctor]

An alternative for testing naval aviation:  Take an old armored cruiser, plunk a flying-off platform on the bow, make a temporary navigation platform behind it so the captain can still see what's happening, and put a seaplane where some of the ship's boats would go.  Easy-peasy.  Dragon has the weight reserve to tolerate this.

[The Rock Doctor]

Sketch of the Lucznik class armored cruiser.  I haven't been able to find locations for half of the 50mm battery, and reckon having them in hull casemates would make more sense than on deck somewhere.  Too late for that, though.

It's a stumpier ship than I had in mind, but I like her look nonetheless.

[Jefgte]

...but I like her look nonetheless.

She looks like VdT

;)

[The Rock Doctor]

...but I like her look nonetheless.

She looks like VdT

;)

Excellent.

[The Rock Doctor]

As previously noted, the M class torpedo-boats are basically modest upgrades of the L class and from a distance look almost identical.  Slightly more efficient machinery allows slight more machinery, there's a bit more ASW hardware, heavier torpedoes, that sort of thing.  It's anticipated that a run of sixteen units will take place between 1917 and 1918.  This would put the Union Navy at 62 torpedo-boats in the 1,000 t range, at which point they may scale up to something larger.

Enter ship name, Enter country Enter ship type laid down 1917

Displacement:
   1,012 t light; 1,057 t standard; 1,202 t normal; 1,318 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (313.96 ft / 310.20 ft) x 29.53 ft x (11.48 / 12.20 ft)
   (95.70 m / 94.55 m) x 9.00 m  x (3.50 / 3.72 m)

Armament:
      4 - 3.94" / 100 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 300 per gun
     Quick firing guns in deck mounts, 1917 Model
     4 x Single mounts on centreline, evenly spread
      2 raised mounts
      1 - 1.97" / 50.0 mm 45.0 cal gun - 3.85lbs / 1.74kg shells, 200 per gun
     Anti-air gun in deck mount, 1917 Model
     1 x Single mount on centreline, aft deck forward
      4 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 4,000 per gun
     Machine guns in deck mounts, 1917 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 127 lbs / 58 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.79" / 20 mm   0.39" / 10 mm            -
   2nd:   0.39" / 10 mm   0.39" / 10 mm            -
   3rd:   0.20" / 5 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 24,129 shp / 18,000 Kw = 30.67 kts
   Range 8,000nm at 10.00 kts
   Bunker at max displacement = 261 tons

Complement:
   101 - 132

Cost:
   £0.234 million / $0.935 million

Distribution of weights at normal displacement:
   Armament: 23 tons, 1.9 %
      - Guns: 23 tons, 1.9 %
   Armour: 15 tons, 1.2 %
      - Armament: 15 tons, 1.2 %
   Machinery: 621 tons, 51.7 %
   Hull, fittings & equipment: 281 tons, 23.4 %
   Fuel, ammunition & stores: 190 tons, 15.8 %
   Miscellaneous weights: 72 tons, 6.0 %
      - Hull below water: 15 tons
      - Hull above water: 0 tons
      - On freeboard deck: 47 tons
      - Above deck: 10 tons

Fittings
-15 t:  Enhanced hydrophone package
-6 t:  Redundant 1912 fire control
-24 t:  2x3 Model 1913 530mm torpedoes (no reloads)
-15 t:  ASW munitions
-12 t:  Weight reserve

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     298 lbs / 135 Kg = 9.8 x 3.9 " / 100 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.23
   Metacentric height 1.2 ft / 0.4 m
   Roll period: 11.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.19
   Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.400 / 0.413
   Length to Beam Ratio: 10.51 : 1
   'Natural speed' for length: 17.61 kts
   Power going to wave formation at top speed: 65 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  21.33 ft / 6.50 m,  16.40 ft / 5.00 m
      - Forward deck:   20.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
      - Aft deck:   45.00 %,  8.53 ft / 2.60 m,  8.53 ft / 2.60 m
      - Quarter deck:   15.00 %,  8.53 ft / 2.60 m,  8.53 ft / 2.60 m
      - Average freeboard:      12.07 ft / 3.68 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 174.4 %
      - Above water (accommodation/working, high = better): 116.5 %
   Waterplane Area: 5,638 Square feet or 524 Square metres
   Displacement factor (Displacement / loading): 63 %
   Structure weight / hull surface area: 27 lbs/sq ft or 132 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.45
      - Overall: 0.55
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

[Jefgte]

...at which point they may scale up to something larger.

Bigger guns for the next class.

;)

This would put the Union Navy at 62 torpedo-boats in the 1,000 t range

24 for Byzantine...

[The Rock Doctor]

Probably 4x130mm, yeah.  I'm hoping I can pull that off on something less than the full 1,500 t, but we'll see.

[TacCovert4]

Should be able to.  I have a 5 x 130 design on 1500t.  And I'm more about speed than Vilnius is. 

[Desertfox]

If I can stuff 4x127mm in 750t, I'm sure you will be able to manage on twice that.