Pocket Cruiser (Frigate Variety)

[Borys]

Last design from Logi - NEDS?
Remember all those blast areas from the 11" guns, making it ... exciting to man the 4" guns.

Jeftge design - it would had been a splendid AC in OTL 1903!

Borys

[The Rock Doctor]

I don't quite understand the need for six turrets.

What exactly is a "pocket cruiser" anyway?  A pocket battleship, in the sense of a panzerschiffe, had capital ship guns on a cruiser hull.  The terminology would then suggest cruiser-sized guns on a destroyer hull.

However, these 11" designs have no cruiser-ish qualities about them at all; they are, as noted, coastal defence battleships (which, personally, I consider to be wasteful).

Ships of this size shouldn't bother with torpedo bulkheads (a general rule of thumb I've seen is that they're only worth installing on ships with a beam of 25+ metres). 

Quad turrets remain out of the question for most people at this time, and I have doubts that a quad 8" would fit a 330' x 63' hull, even if the BC were higher than 0.44.

[Jefgte]

IMHO, Pocket Warship  is 2T3x...

Pocket Cruiser...
2T3x152

Pocket Armored Cruiser...
2T3x9"2

Pocket Battle Cruiser...
2T3x12"

Pocket Battleship
2T3x343 or 380 or 406...
-------------------------
In the concept, 2 Pocket AC are equal or superior to an AC.
They have similar protection & speed.


Jef  ;)

[Logi]

I don't quite understand the need for six turrets.

I meant to put two quad turrets on that, not six turrets.

What exactly is a "pocket cruiser" anyway?  A pocket battleship, in the sense of a panzerschiffe, had capital ship guns on a cruiser hull.  The terminology would then suggest cruiser-sized guns on a destroyer hull.

You got it right. "Pocket Cruisers" (true ones) are ships of frigate-size(around 300 ft) that use cruiser guns.

However, these 11" designs have no cruiser-ish qualities about them at all; they are, as noted, coastal defence battleships (which, personally, I consider to be wasteful).

Yes, it wasn't exactly a great design. I was squeezing as much firepower as possible out of it.

Ships of this size shouldn't bother with torpedo bulkheads (a general rule of thumb I've seen is that they're only worth installing on ships with a beam of 25+ metres).

I see, I only thought of having the bulkheads because of the slow speed the ships were orginally supposed to have. (Which is show in design #2) Because of the slow speed I naturally thought to protect the ships from torpedoes.

Quad turrets remain out of the question for most people at this time, and I have doubts that a quad 8" would fit a 330' x 63' hull, even if the BC were higher than 0.44.

I'm not sure about the quads either. I know for a fact that triples fit on the ship though.

Last design from Logi - NEDS?
Remember all those blast areas from the 11" guns, making it ... exciting to man the 4" guns.

I thought it might get a NEDs.

What's life without the risk of the main guns sending people overboard? Kind like life on the Yamato, manning the secondary armament while the main guns were firing was suicide.

[Logi]

I really don't know where to put this post...
But meet my 4.5" superlong wonder! Scratch-made from rotting wood painted to look like whatever it looks like. The barrel is 80 ft long (Qualified to be called a superlong? Yes. A good naval gun? No)

[Logi]

?, ? Pocket Cruiser laid down 1914 (Engine 1916)

Displacement:
   5,816 t light; 6,011 t standard; 6,465 t normal; 6,828 t full load

Dimensions: Length overall / water x beam x draught
   340.00 ft / 340.00 ft x 55.00 ft x 22.00 ft (normal load)
   103.63 m / 103.63 m x 16.76 m  x 6.71 m

Armament:
      6 - 7.00" / 178 mm guns (2x3 guns), 171.50lbs / 77.79kg shells, 1914 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread
      8 - 3.00" / 76.2 mm guns (4x2 guns), 13.50lbs / 6.12kg shells, 1914 Model
     Quick firing guns in deck mounts with hoists
     on side, all amidships
      8 - 0.50" / 12.7 mm guns (4x2 guns), 0.06lbs / 0.03kg shells, 1914 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 1,138 lbs / 516 kg
   Shells per gun, main battery: 100

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   4.00" / 102 mm   250.00 ft / 76.20 m   20.00 ft / 6.10 m
   Ends:   1.00" / 25 mm     90.00 ft / 27.43 m   30.00 ft / 9.14 m
   Upper:   2.00" / 51 mm   250.00 ft / 76.20 m   10.00 ft / 3.05 m
     Main Belt covers 113 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   3.00" / 76 mm   2.00" / 51 mm      2.50" / 64 mm
   2nd:   1.00" / 25 mm         -         0.50" / 13 mm
   3rd:   0.50" / 13 mm         -               -

   - Armour deck: 1.00" / 25 mm, Conning tower: 3.00" / 76 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 46,428 shp / 34,636 Kw = 27.00 kts
   Range 5,870nm at 12.00 kts
                562nm at 27.00 kts
   Bunker at max displacement = 817 tons

Complement:
   359 - 468

Cost:
   £0.719 million / $2.877 million

Distribution of weights at normal displacement:
   Armament: 142 tons, 2.2 %
   Armour: 1,590 tons, 24.6 %
      - Belts: 1,163 tons, 18.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 163 tons, 2.5 %
      - Armour Deck: 241 tons, 3.7 %
      - Conning Tower: 22 tons, 0.3 %
   Machinery: 1,730 tons, 26.8 %
   Hull, fittings & equipment: 2,255 tons, 34.9 %
   Fuel, ammunition & stores: 648 tons, 10.0 %
   Miscellaneous weights: 100 tons, 1.5 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     7,270 lbs / 3,298 Kg = 42.4 x 7.0 " / 178 mm shells or 1.2 torpedoes
   Stability (Unstable if below 1.00): 1.16
   Metacentric height 2.7 ft / 0.8 m
   Roll period: 14.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 45 %
         - Recoil effect (Restricted arc if above 1.00): 0.45
   Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.550
   Length to Beam Ratio: 6.18 : 1
   'Natural speed' for length: 18.44 kts
   Power going to wave formation at top speed: 70 %
   Trim (Max stability = 0, Max steadiness = 100): 41
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: -1.00 ft / -0.30 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      23.00 ft / 7.01 m
      - Forecastle (20 %):   23.00 ft / 7.01 m
      - Mid (50 %):      23.00 ft / 7.01 m
      - Quarterdeck (15 %):   23.00 ft / 7.01 m
      - Stern:      23.00 ft / 7.01 m
      - Average freeboard:   23.00 ft / 7.01 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 105.2 %
      - Above water (accommodation/working, high = better): 159.3 %
   Waterplane Area: 13,051 Square feet or 1,212 Square metres
   Displacement factor (Displacement / loading): 103 %
   Structure weight / hull surface area: 91 lbs/sq ft or 443 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.82
      - Longitudinal: 5.79
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent

The lastest design, faster but lighter firepower. I reconsidered the mission and this is what I came up with, without increasing length too much.