Habsburgs - Kolonial Aviso 1915

[Borys]

SMS Strudelkopf, Habsburgs Colonial Aviso laid down 1914

I'm not so happy about the range - should I push for 8000?

Displacement:
   3 977 t light; 4 122 t standard; 4 843 t normal; 5 419 t full load

Dimensions: Length overall / water x beam x draught
   380,00 ft / 380,00 ft x 54,00 ft x 14,00 ft (normal load)
   115,82 m / 115,82 m x 16,46 m  x 4,27 m

Armament:
      2 - 7,50" / 191 mm guns in single mounts, 210,94lbs / 95,68kg shells, 1914 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread
      4 - 4,00" / 102 mm guns in single mounts, 32,00lbs / 14,51kg shells, 1914 Model
     Breech loading guns in deck mounts
     on side, all amidships
   Weight of broadside 550 lbs / 249 kg
   Shells per gun, main battery: 150
   4 - 20,0" / 508 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2,50" / 64 mm   260,00 ft / 79,25 m   12,00 ft / 3,66 m
   Ends:   Unarmoured
     Main Belt covers 105% of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1,00" / 25 mm   1,00" / 25 mm      1,00" / 25 mm
   2nd:   1,00" / 25 mm         -               -

   - Armour deck: 1,50" / 38 mm, Conning tower: 2,00" / 51 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 18 836 ihp / 14 051 Kw = 23,00 kts
   Range 6 500nm at 12,00 kts
   Bunker at max displacement = 1 297 tons (100% coal)

Complement:
   289 - 377

Cost:
   £0,471 million / $1,886 million

Distribution of weights at normal displacement:
   Armament: 69 tons, 1,4%
   Armour: 781 tons, 16,1%
      - Belts: 334 tons, 6,9%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 22 tons, 0,5%
      - Armour Deck: 413 tons, 8,5%
      - Conning Tower: 12 tons, 0,3%
   Machinery: 1 239 tons, 25,6%
   Hull, fittings & equipment: 1 688 tons, 34,9%
   Fuel, ammunition & stores: 866 tons, 17,9%
   Miscellaneous weights: 200 tons, 4,1%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     7 602 lbs / 3 448 Kg = 36,0 x 7,5 " / 191 mm shells or 1,3 torpedoes
   Stability (Unstable if below 1.00): 1,39
   Metacentric height 3,5 ft / 1,1 m
   Roll period: 12,1 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,17
   Seaboat quality  (Average = 1.00): 1,50

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0,590
   Length to Beam Ratio: 7,04 : 1
   'Natural speed' for length: 19,49 kts
   Power going to wave formation at top speed: 56 %
   Trim (Max stability = 0, Max steadiness = 100): 47
   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:      25,00 ft / 7,62 m
      - Forecastle (20%):   20,00 ft / 6,10 m
      - Mid (73%):      20,00 ft / 6,10 m (13,00 ft / 3,96 m aft of break)
      - Quarterdeck (15%):   13,00 ft / 3,96 m
      - Stern:      13,00 ft / 3,96 m
      - Average freeboard:   18,51 ft / 5,64 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 98,9%
      - Above water (accommodation/working, high = better): 161,0%
   Waterplane Area: 14 868 Square feet or 1 381 Square metres
   Displacement factor (Displacement / loading): 121%
   Structure weight / hull surface area: 75 lbs/sq ft or 366 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,91
      - Longitudinal: 2,18
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[P3D]

What ship she is supposed to fight?

[Borys]

fishery protection boats

[Korpen]

fishery protection boats

What fisheries? To protect fishing boats in the adriatic, or med, your normal units should be more then enogh.

[Borys]

Antarctic waters ...

[Korpen]

Antarctic waters ...

Considering there were no fishing there untill after ww2 that sounds very odd indeed...

Whales are not fish btw...

[Borys]

Whaling, then :)
Borys

[The Rock Doctor]

If you're operating from your enclave at the bottom of South America, I think 6800 nm is good - unless the ship gets iced in for a winter, of course.

Food for thought - Antarctic waters tend to be rough, and range will be limited by storms and darkness.  Perhaps drop the 7.5" and 4", and install a uniform battery of 4 x 6" in enclosed mountings?  Easier to handle, higher ROF than 7.5", and easier on the logistics.

I'd also consider shaving down the deck armor to allow a modest belt at the ends - to keep out ice, if not shells.

[Borys]

Ahoj!
I'm not sure about those enclosed 6" mounts - but I have single 7,5" turrets.
Good point about the ice.
I enclosed the 4" guns in weatherdeck level casemattes.

This is probably a paper exercise anyway, as 1914 is the year when I will still be rebuilding my army.
And I think the best use of my limited naval funds would be 4 modified Marie Theresie's.

SMS Strudelkopf, Habsburgs Colonial Aviso laid down 1914

Displacement:
   3 952 t light; 4 098 t standard; 4 876 t normal; 5 498 t full load

Dimensions: Length overall / water x beam x draught
   380,00 ft / 380,00 ft x 54,00 ft x 14,00 ft (normal load)
   115,82 m / 115,82 m x 16,46 m  x 4,27 m

Armament:
      2 - 7,50" / 191 mm guns in single mounts, 210,94lbs / 95,68kg shells, 1914 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread
      4 - 4,00" / 102 mm guns in single mounts, 32,00lbs / 14,51kg shells, 1914 Model
     Breech loading guns in casemate mounts
     on side, all amidships
   Weight of broadside 550 lbs / 249 kg
   Shells per gun, main battery: 150
   4 - 20,0" / 508 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2,50" / 64 mm   245,00 ft / 74,68 m   12,00 ft / 3,66 m
   Ends:   1,50" / 38 mm   135,00 ft / 41,15 m   8,00 ft / 2,44 m
     Main Belt covers 99% of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1,00" / 25 mm   1,00" / 25 mm      1,00" / 25 mm
   2nd:   1,00" / 25 mm         -               -

   - Armour deck: 1,00" / 25 mm, Conning tower: 2,00" / 51 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 18 952 ihp / 14 138 Kw = 23,00 kts
   Range 7 000nm at 12,00 kts
   Bunker at max displacement = 1 400 tons (100% coal)

Complement:
   291 - 379

Cost:
   £0,472 million / $1,887 million

Distribution of weights at normal displacement:
   Armament: 69 tons, 1,4%
   Armour: 702 tons, 14,4%
      - Belts: 379 tons, 7,8%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 35 tons, 0,7%
      - Armour Deck: 276 tons, 5,7%
      - Conning Tower: 12 tons, 0,3%
   Machinery: 1 247 tons, 25,6%
   Hull, fittings & equipment: 1 734 tons, 35,6%
   Fuel, ammunition & stores: 924 tons, 18,9%
   Miscellaneous weights: 200 tons, 4,1%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     7 791 lbs / 3 534 Kg = 36,9 x 7,5 " / 191 mm shells or 1,3 torpedoes
   Stability (Unstable if below 1.00): 1,38
   Metacentric height 3,5 ft / 1,1 m
   Roll period: 12,2 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,19
   Seaboat quality  (Average = 1.00): 1,51

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0,594
   Length to Beam Ratio: 7,04 : 1
   'Natural speed' for length: 19,49 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 47
   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:      25,00 ft / 7,62 m
      - Forecastle (20%):   20,00 ft / 6,10 m
      - Mid (80%):      20,00 ft / 6,10 m (13,00 ft / 3,96 m aft of break)
      - Quarterdeck (15%):   13,00 ft / 3,96 m
      - Stern:      13,00 ft / 3,96 m
      - Average freeboard:   19,00 ft / 5,79 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 98,8%
      - Above water (accommodation/working, high = better): 167,0%
   Waterplane Area: 14 924 Square feet or 1 386 Square metres
   Displacement factor (Displacement / loading): 124%
   Structure weight / hull surface area: 76 lbs/sq ft or 369 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,91
      - Longitudinal: 2,27
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[The Rock Doctor]

That looks better - whether it's the most important thing, I don't know.  You do need some light cruisers, as you note.

[The Rock Doctor]

You still got the quartet of shitty old Dragon class KKs?  Consider reconstructing them - stupid features like the torpedo bulkhead actually make sense for an Antarctic aviso:

Basic Reconstruction cost (includes reshaping of forecastle): $1.124, 0.449 BP
New Armament:  $0.212, 0.106 BP (No development cost for small single deck mounts!)
New Machinery:  $1.550, 0.775 BP
Increase in Bunkerage:  $0.190, 0.000 BP
New Miscellaneous Weight:  $0.200, 0.200 BP
================================
Total:  $3.28, and 1.530 BP (and you can recycle the old VTE as scrap...)

Outcome is not as good as your purpose-build, but not bad:

Re-enter the Dragon, reconstructed 1914, laiddown 1899 (Engine 1912)

Displacement:
   4,385 t light; 4,564 t standard; 5,091 t normal; 5,512 t full load

Dimensions: Length overall / water x beam x draught
   321.40 ft / 310.70 ft x 50.00 ft x 22.01 ft (normal load)
   97.96 m / 94.70 m x 15.24 m  x 6.71 m

Armament:
      2 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1899 Model
     Breech loading guns in deck mounts
     on centreline ends, evenly spread, 1 raised mount
      4 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1899 Model
     Breech loading guns in deck mounts
     on side, all amidships
      4 - 0.31" / 8.0 mm guns in single mounts, 0.02lbs / 0.01kg shells, 1899 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 618 lbs / 280 kg
   Shells per gun, main battery: 200
   4 - 19.7" / 500.8 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2.01" / 51 mm   310.66 ft / 94.69 m   10.01 ft / 3.05 m
   Ends:   2.01" / 51 mm     0.00 ft / 0.00 m   10.01 ft / 3.05 m
   Upper:   2.01" / 51 mm   201.97 ft / 61.56 m   4.99 ft / 1.52 m
     Main Belt covers 154 % of normal length

   - Torpedo Bulkhead:
      0.98" / 25 mm   201.97 ft / 61.56 m   20.01 ft / 6.10 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.98" / 25 mm   0.98" / 25 mm            -
   2nd:   0.98" / 25 mm   0.98" / 25 mm            -

   - Armour deck: 0.98" / 25 mm, Conning tower: 2.01" / 51 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 11,697 ihp / 8,726 Kw = 20.00 kts
   Range 7,000nm at 10.00 kts (Bunkerage = 949 tons)

Complement:
   300 - 391

Cost:
   £0.327 million / $1.307 million

Distribution of weights at normal displacement:
   Armament: 77 tons, 1.5 %
   Armour: 703 tons, 13.8 %
      - Belts: 321 tons, 6.3 %
      - Torpedo bulkhead: 147 tons, 2.9 %
      - Armament: 29 tons, 0.6 %
      - Armour Deck: 192 tons, 3.8 %
      - Conning Tower: 13 tons, 0.3 %
   Machinery: 775 tons, 15.2 %
   Hull, fittings & equipment: 2,631 tons, 51.7 %
   Fuel, ammunition & stores: 705 tons, 13.9 %
   Miscellaneous weights: 200 tons, 3.9 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,833 lbs / 1,739 Kg = 37.2 x 5.9 " / 150 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.18
   Metacentric height 2.4 ft / 0.7 m
   Roll period: 13.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.11
   Seaboat quality  (Average = 1.00): 1.23

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0.521
   Length to Beam Ratio: 6.21 : 1
   'Natural speed' for length: 17.63 kts
   Power going to wave formation at top speed: 56 %
   Trim (Max stability = 0, Max steadiness = 100): 57
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 4.00 ft / 1.22 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      18.41 ft / 5.61 m
      - Forecastle (20 %):   18.41 ft / 5.61 m (12.11 ft / 3.69 m aft of break)
      - Mid (50 %):      12.11 ft / 3.69 m
      - Quarterdeck (15 %):   12.11 ft / 3.69 m
      - Stern:      12.11 ft / 3.69 m
      - Average freeboard:   13.37 ft / 4.07 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 111.3 %
      - Above water (accommodation/working, high = better): 68.4 %
   Waterplane Area: 10,552 Square feet or 980 Square metres
   Displacement factor (Displacement / loading): 166 %
   Structure weight / hull surface area: 153 lbs/sq ft or 746 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 2.01
      - Longitudinal: 5.63
      - Overall: 2.23
   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
   Good seaboat, rides out heavy weather easily