French Moneypit.

Started by maddox, September 20, 2010, 09:09:06 AM

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maddox

With the lessons learned in the Rift War, a young, fertile and especialy creative mind proposes this.

It does everything that is needed.
The 6 main guns, the minimum needed for effective firecontrol, combined with the new in development 410mm guns and turrets gives the ship a punch equal to Montmedie .
The 16 140mm in the ubiqtous twin mount and hoist make sure that DD attacks can, and will be disrupted.
The heavy 37mm gun anti air battery combined with the dozen fighters from the aviaton department are deemed sufficient to swat any attempt with ship based aircraft.

And above all, the ship is comfortable, fits perfect in the Nassau Battle-line and has exellent stability and steadiness, facilitating fire control and the launching and recovering of aircraft on the 40 meter long flight deck. 

QuoteAlbator, French Hybrid carrier laid down 1920

Displacement:
   35.000 t light; 36.749 t standard; 40.272 t normal; 43.090 t full load

Dimensions: Length overall / water x beam x draught
   688,98 ft / 685,70 ft x 114,83 ft x 29,53 ft (normal load)
   210,00 m / 209,00 m x 35,00 m  x 9,00 m

Armament:
      6 - 16,14" / 410 mm guns (2x3 guns), 2.535,32lbs / 1.150,00kg shells, 1920 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, all forward, 1 raised mount - superfiring
      16 - 5,51" / 140 mm guns (8x2 guns), 92,59lbs / 42,00kg shells, 1920 Model
     Quick firing guns in deck mounts with hoists
     on side, all amidships, 4 raised mounts - superfiring
      10 - 1,46" / 37,0 mm guns in single mounts, 1,55lbs / 0,70kg shells, 1920 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 16.709 lbs / 7.579 kg
   Shells per gun, main battery: 100

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   14,5" / 368 mm   308,56 ft / 94,05 m   24,00 ft / 7,32 m
   Ends:   3,50" / 89 mm   377,11 ft / 114,94 m   12,86 ft / 3,92 m
   Upper:   3,00" / 76 mm   308,56 ft / 94,05 m   8,00 ft / 2,44 m
     Main Belt covers 69% of normal length

   - Torpedo Bulkhead:
      2,00" / 51 mm   308,56 ft / 94,05 m   27,92 ft / 8,51 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   15,0" / 381 mm   8,00" / 203 mm      15,0" / 381 mm
   2nd:   2,00" / 51 mm   1,00" / 25 mm      3,00" / 76 mm
   3rd:   0,50" / 13 mm   0,50" / 13 mm            -

   - Armour deck: 4,00" / 102 mm, Conning tower: 15,00" / 381 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 57.755 shp / 43.085 Kw = 23,00 kts
   Range 9.000nm at 16,00 kts
   Bunker at max displacement = 6.341 tons

Complement:
   1.420 - 1.847

Cost:
   £7,031 million / $28,126 million

Distribution of weights at normal displacement:
   Armament: 1.747 tons, 4,3%
   Armour: 13.694 tons, 34,0%
      - Belts: 6.215 tons, 15,4%
      - Torpedo bulkhead: 638 tons, 1,6%
      - Armament: 2.175 tons, 5,4%
      - Armour Deck: 4.286 tons, 10,6%
      - Conning Tower: 380 tons, 0,9%
   Machinery: 2.019 tons, 5,0%
   Hull, fittings & equipment: 15.540 tons, 38,6%
   Fuel, ammunition & stores: 5.272 tons, 13,1%
   Miscellaneous weights: 2.000 tons, 5,0%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     69.909 lbs / 31.710 Kg = 33,2 x 16,1 " / 410 mm shells or 12,7 torpedoes
   Stability (Unstable if below 1.00): 1,22
   Metacentric height 8,9 ft / 2,7 m
   Roll period: 16,2 seconds
   Steadiness   - As gun platform (Average = 50 %): 72 %
         - Recoil effect (Restricted arc if above 1.00): 0,40
   Seaboat quality  (Average = 1.00): 1,85

Hull form characteristics:
   Hull has raised quarterdeck
   Block coefficient: 0,606
   Length to Beam Ratio: 5,97 : 1
   'Natural speed' for length: 26,19 kts
   Power going to wave formation at top speed: 45 %
   Trim (Max stability = 0, Max steadiness = 100): 39
   Bow angle (Positive = bow angles forward): -5,00 degrees
   Stern overhang: 3,28 ft / 1,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      22,97 ft / 7,00 m
      - Forecastle (20%):   18,04 ft / 5,50 m
      - Mid (50%):      18,04 ft / 5,50 m
      - Quarterdeck (35%):   42,65 ft / 13,00 m (18,04 ft / 5,50 m before break)
      - Stern:      42,65 ft / 13,00 m
      - Average freeboard:   27,05 ft / 8,25 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 67,1%
      - Above water (accommodation/working, high = better): 140,2%
   Waterplane Area: 57.925 Square feet or 5.381 Square metres
   Displacement factor (Displacement / loading): 119%
   Structure weight / hull surface area: 196 lbs/sq ft or 959 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 excellent
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

250 ton FC
25Ton Long range marconi
25 ton ERADe
100ton Crew Comfort
200 ton firefighting and damage control facilities (paranoïa with all that avgas)
1400 ton aviation space. 37 aircraft accommodated.

Laertes

I've never seen barbette armour for a mount and hoist before.

Other than that, she looks excellent. I'd love to see a diagram of her, just to see where everything fits.

snip

This could be interesting...

Ive always been fond of the hybrid concept. It would be great for a power without much shipbuilding capacity...(runs to SS)
You smug-faced crowds with kindling eye
Who cheer when solider lads march by
Sneak home and pray that you'll never know
The hell where youth and laughter go.
-Siegfried Sassoon

maddox

Quote from: Laertes on September 20, 2010, 09:13:34 AM
I've never seen barbette armour for a mount and hoist before.

Other than that, she looks excellent. I'd love to see a diagram of her, just to see where everything fits.

I based my Twin 140's on the US twin 5" as used on the newer BB's. I know, you could call it hindsightis. But the development of this armament has a nice logical build up over the 20 years of the Nverse.

Originaly the 140mm was used in casemates on deck level, with larger guns like the 165 or 195 in hull casemates. Later some deck mounted 140's were used (1900's ships, like the Neptune); to be followed by an attempted light armored cruiser with 165mm twins in heavely armored mount and hoists. The Town class. These ships weren't a succes , as the heavy housing couldn't turn fast enough.
The heaviest mount and hoist useable, given the French techology, is the now ubiqtous twin 140 with 2" face , 1" weathershield and an armored ready ammo supply box/powerpack with the support for the weight rivetted in the girders and deck structure. This armored box has 3" armor plate.

It's this box that is the below deck part of this mount and hoist set.

damocles

Quote from: maddox on September 20, 2010, 09:09:06 AM
With the lessons learned in the Rift War, a young, fertile and especialy creative mind proposes this.

It does everything that is needed.
The 6 main guns, the minimum needed for effective firecontrol, combined with the new in development 410mm guns and turrets gives the ship a punch equal to Montmedie .
The 16 140mm in the ubiqtous twin mount and hoist make sure that DD attacks can, and will be disrupted.
The heavy 37mm gun anti air battery combined with the dozen fighters from the aviaton department are deemed sufficient to swat any attempt with ship based aircraft.

And above all, the ship is comfortable, fits perfect in the Nassau Battle-line and has exellent stability and steadiness, facilitating fire control and the launching and recovering of aircraft on the 40 meter long flight deck. 

QuoteAlbator, French Hybrid carrier laid down 1920

Displacement:
   35.000 t light; 36.749 t standard; 40.272 t normal; 43.090 t full load

Dimensions: Length overall / water x beam x draught
   688,98 ft / 685,70 ft x 114,83 ft x 29,53 ft (normal load)
   210,00 m / 209,00 m x 35,00 m  x 9,00 m

Armament:
      6 - 16,14" / 410 mm guns (2x3 guns), 2.535,32lbs / 1.150,00kg shells, 1920 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, all forward, 1 raised mount - superfiring
      16 - 5,51" / 140 mm guns (8x2 guns), 92,59lbs / 42,00kg shells, 1920 Model
     Quick firing guns in deck mounts with hoists
     on side, all amidships, 4 raised mounts - superfiring
      10 - 1,46" / 37,0 mm guns in single mounts, 1,55lbs / 0,70kg shells, 1920 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 16.709 lbs / 7.579 kg
   Shells per gun, main battery: 100

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   14,5" / 368 mm   308,56 ft / 94,05 m   24,00 ft / 7,32 m
   Ends:   3,50" / 89 mm   377,11 ft / 114,94 m   12,86 ft / 3,92 m
   Upper:   3,00" / 76 mm   308,56 ft / 94,05 m   8,00 ft / 2,44 m
     Main Belt covers 69% of normal length

   - Torpedo Bulkhead:
      2,00" / 51 mm   308,56 ft / 94,05 m   27,92 ft / 8,51 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   15,0" / 381 mm   8,00" / 203 mm      15,0" / 381 mm
   2nd:   2,00" / 51 mm   1,00" / 25 mm      3,00" / 76 mm
   3rd:   0,50" / 13 mm   0,50" / 13 mm            -

   - Armour deck: 4,00" / 102 mm, Conning tower: 15,00" / 381 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 57.755 shp / 43.085 Kw = 23,00 kts
   Range 9.000nm at 16,00 kts
   Bunker at max displacement = 6.341 tons

Complement:
   1.420 - 1.847

Cost:
   £7,031 million / $28,126 million

Distribution of weights at normal displacement:
   Armament: 1.747 tons, 4,3%
   Armour: 13.694 tons, 34,0%
      - Belts: 6.215 tons, 15,4%
      - Torpedo bulkhead: 638 tons, 1,6%
      - Armament: 2.175 tons, 5,4%
      - Armour Deck: 4.286 tons, 10,6%
      - Conning Tower: 380 tons, 0,9%
   Machinery: 2.019 tons, 5,0%
   Hull, fittings & equipment: 15.540 tons, 38,6%
   Fuel, ammunition & stores: 5.272 tons, 13,1%
   Miscellaneous weights: 2.000 tons, 5,0%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     69.909 lbs / 31.710 Kg = 33,2 x 16,1 " / 410 mm shells or 12,7 torpedoes
   Stability (Unstable if below 1.00): 1,22
   Metacentric height 8,9 ft / 2,7 m
   Roll period: 16,2 seconds
   Steadiness   - As gun platform (Average = 50 %): 72 %
         - Recoil effect (Restricted arc if above 1.00): 0,40
   Seaboat quality  (Average = 1.00): 1,85

Hull form characteristics:
   Hull has raised quarterdeck
   Block coefficient: 0,606
   Length to Beam Ratio: 5,97 : 1
   'Natural speed' for length: 26,19 kts
   Power going to wave formation at top speed: 45 %
   Trim (Max stability = 0, Max steadiness = 100): 39
   Bow angle (Positive = bow angles forward): -5,00 degrees
   Stern overhang: 3,28 ft / 1,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      22,97 ft / 7,00 m
      - Forecastle (20%):   18,04 ft / 5,50 m
      - Mid (50%):      18,04 ft / 5,50 m
      - Quarterdeck (35%):   42,65 ft / 13,00 m (18,04 ft / 5,50 m before break)
      - Stern:      42,65 ft / 13,00 m
      - Average freeboard:   27,05 ft / 8,25 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 67,1%
      - Above water (accommodation/working, high = better): 140,2%
   Waterplane Area: 57.925 Square feet or 5.381 Square metres
   Displacement factor (Displacement / loading): 119%
   Structure weight / hull surface area: 196 lbs/sq ft or 959 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 excellent
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

250 ton FC
25Ton Long range marconi
25 ton ERADe
100ton Crew Comfort
200 ton firefighting and damage control facilities (paranoïa with all that avgas)
1400 ton aviation space. 37 aircraft accommodated.

Note to the DKN, get to work on better torpedoes and the means to deliver same!

maddox

#5
Thanks for the remark.   37 aircraft require 1369 tons of misc weight.  Meaning I've 31 tons left.    What about a broadside of 5 underwater 24" torpedos?

Or, with some reshuffling....

QuoteAlbator, French Hybrid carrier laid down 1920

Displacement:
   34.984 t light; 36.733 t standard; 40.255 t normal; 43.072 t full load

Dimensions: Length overall / water x beam x draught
   688,98 ft / 685,70 ft x 114,83 ft x 29,53 ft (normal load)
   210,00 m / 209,00 m x 35,00 m  x 9,00 m

Armament:
      6 - 16,14" / 410 mm guns (2x3 guns), 2.535,32lbs / 1.150,00kg shells, 1920 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, all forward, 1 raised mount - superfiring
      16 - 5,51" / 140 mm guns (8x2 guns), 92,59lbs / 42,00kg shells, 1920 Model
     Quick firing guns in deck mounts with hoists
     on side, all amidships, 4 raised mounts - superfiring
      10 - 1,46" / 37,0 mm guns in single mounts, 1,55lbs / 0,70kg shells, 1920 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 16.709 lbs / 7.579 kg
   Shells per gun, main battery: 100
   10 - 24,0" / 609,6 mm submerged torpedo tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   14,5" / 368 mm   308,56 ft / 94,05 m   24,00 ft / 7,32 m
   Ends:   3,00" / 76 mm   377,11 ft / 114,94 m   12,00 ft / 3,66 m
   Upper:   3,00" / 76 mm   308,56 ft / 94,05 m   8,00 ft / 2,44 m
     Main Belt covers 69% of normal length
     Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
      2,00" / 51 mm   308,56 ft / 94,05 m   27,92 ft / 8,51 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   15,0" / 381 mm   8,00" / 203 mm      15,0" / 381 mm
   2nd:   2,00" / 51 mm   1,00" / 25 mm      3,00" / 76 mm
   3rd:   0,50" / 13 mm   0,50" / 13 mm            -

   - Armour deck: 4,00" / 102 mm, Conning tower: 15,00" / 381 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 57.734 shp / 43.070 Kw = 23,00 kts
   Range 9.000nm at 16,00 kts
   Bunker at max displacement = 6.339 tons

Complement:
   1.420 - 1.847

Cost:
   £7,030 million / $28,119 million

Distribution of weights at normal displacement:
   Armament: 1.747 tons, 4,3%
   Armour: 13.567 tons, 33,7%
      - Belts: 6.089 tons, 15,1%
      - Torpedo bulkhead: 638 tons, 1,6%
      - Armament: 2.175 tons, 5,4%
      - Armour Deck: 4.285 tons, 10,6%
      - Conning Tower: 380 tons, 0,9%
   Machinery: 2.019 tons, 5,0%
   Hull, fittings & equipment: 15.532 tons, 38,6%
   Fuel, ammunition & stores: 5.271 tons, 13,1%
   Miscellaneous weights: 2.120 tons, 5,3%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     65.165 lbs / 29.558 Kg = 31,0 x 16,1 " / 410 mm shells or 11,4 torpedoes
   Stability (Unstable if below 1.00): 1,22
   Metacentric height 8,8 ft / 2,7 m
   Roll period: 16,2 seconds
   Steadiness   - As gun platform (Average = 50 %): 73 %
         - Recoil effect (Restricted arc if above 1.00): 0,41
   Seaboat quality  (Average = 1.00): 1,86

Hull form characteristics:
   Hull has raised quarterdeck
   Block coefficient: 0,606
   Length to Beam Ratio: 5,97 : 1
   'Natural speed' for length: 26,19 kts
   Power going to wave formation at top speed: 45 %
   Trim (Max stability = 0, Max steadiness = 100): 39
   Bow angle (Positive = bow angles forward): -5,00 degrees
   Stern overhang: 3,28 ft / 1,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      22,97 ft / 7,00 m
      - Forecastle (20%):   18,04 ft / 5,50 m
      - Mid (50%):      18,04 ft / 5,50 m
      - Quarterdeck (35%):   42,65 ft / 13,00 m (18,04 ft / 5,50 m before break)
      - Stern:      42,65 ft / 13,00 m
      - Average freeboard:   27,05 ft / 8,25 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 71,9%
      - Above water (accommodation/working, high = better): 140,2%
   Waterplane Area: 57.911 Square feet or 5.380 Square metres
   Displacement factor (Displacement / loading): 119%
   Structure weight / hull surface area: 196 lbs/sq ft or 959 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 excellent
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

250 ton FC
25Ton Long range marconi
25 ton ERADe
100ton Crew Comfort
200 ton firefighting and damage control facilities (paranoïa with all that avgas)
1400 ton aviation space. 37 aircraft accommodated.
10 underwater torpedo tubes with 3 loads.

Ithekro

Albator?  Hmmmm.  Lord Harlock may pay attention to this vessel (Or perhaps his son will).

maddox


damocles

Grumble....get to work on this:

http://en.wikipedia.org/wiki/I-201_class_submarine

Talk to Walter about it. Can't have it before 1938 though....   

Laertes

QuoteThanks for the remark.   37 aircraft require 1369 tons of misc weight.  Meaning I've 31 tons left.    What about a broadside of 5 underwater 24" torpedos?

If a carrier gets to within torpedo range, she presumably has better things to do than bringing torpedo tubes to bear. Running away, for example.

maddox

True, But the best torpedo attack is from the front. 

So, 2 tripple launchers each side will disrupt that.

QuoteAlbator, French Hybrid carrier laid down 1920

Displacement:
   34.984 t light; 36.733 t standard; 40.255 t normal; 43.072 t full load

Dimensions: Length overall / water x beam x draught
   688,98 ft / 685,70 ft x 114,83 ft x 29,53 ft (normal load)
   210,00 m / 209,00 m x 35,00 m  x 9,00 m

Armament:
      6 - 16,14" / 410 mm guns (2x3 guns), 2.535,32lbs / 1.150,00kg shells, 1920 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, all forward, 1 raised mount - superfiring
      16 - 5,51" / 140 mm guns (8x2 guns), 92,59lbs / 42,00kg shells, 1920 Model
     Quick firing guns in deck mounts with hoists
     on side, all amidships, 4 raised mounts - superfiring
      10 - 1,46" / 37,0 mm guns in single mounts, 1,55lbs / 0,70kg shells, 1920 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 16.709 lbs / 7.579 kg
   Shells per gun, main battery: 100
   12 - 24,0" / 609,6 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   14,5" / 368 mm   308,56 ft / 94,05 m   24,00 ft / 7,32 m
   Ends:   3,00" / 76 mm   377,11 ft / 114,94 m   12,00 ft / 3,66 m
   Upper:   3,00" / 76 mm   308,56 ft / 94,05 m   8,00 ft / 2,44 m
     Main Belt covers 69% of normal length

   - Torpedo Bulkhead:
      2,00" / 51 mm   308,56 ft / 94,05 m   27,92 ft / 8,51 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   15,0" / 381 mm   8,00" / 203 mm      15,0" / 381 mm
   2nd:   2,00" / 51 mm   1,00" / 25 mm      3,00" / 76 mm
   3rd:   0,50" / 13 mm   0,50" / 13 mm            -

   - Armour deck: 4,00" / 102 mm, Conning tower: 15,00" / 381 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 57.734 shp / 43.070 Kw = 23,00 kts
   Range 9.000nm at 16,00 kts
   Bunker at max displacement = 6.339 tons

Complement:
   1.420 - 1.847

Cost:
   £7,030 million / $28,119 million

Distribution of weights at normal displacement:
   Armament: 1.747 tons, 4,3%
   Armour: 13.567 tons, 33,7%
      - Belts: 6.089 tons, 15,1%
      - Torpedo bulkhead: 638 tons, 1,6%
      - Armament: 2.175 tons, 5,4%
      - Armour Deck: 4.285 tons, 10,6%
      - Conning Tower: 380 tons, 0,9%
   Machinery: 2.019 tons, 5,0%
   Hull, fittings & equipment: 15.532 tons, 38,6%
   Fuel, ammunition & stores: 5.271 tons, 13,1%
   Miscellaneous weights: 2.120 tons, 5,3%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     69.395 lbs / 31.477 Kg = 33,0 x 16,1 " / 410 mm shells or 12,6 torpedoes
   Stability (Unstable if below 1.00): 1,22
   Metacentric height 8,8 ft / 2,7 m
   Roll period: 16,2 seconds
   Steadiness   - As gun platform (Average = 50 %): 73 %
         - Recoil effect (Restricted arc if above 1.00): 0,41
   Seaboat quality  (Average = 1.00): 1,87

Hull form characteristics:
   Hull has raised quarterdeck
   Block coefficient: 0,606
   Length to Beam Ratio: 5,97 : 1
   'Natural speed' for length: 26,19 kts
   Power going to wave formation at top speed: 45 %
   Trim (Max stability = 0, Max steadiness = 100): 39
   Bow angle (Positive = bow angles forward): -5,00 degrees
   Stern overhang: 3,28 ft / 1,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      22,97 ft / 7,00 m
      - Forecastle (20%):   18,04 ft / 5,50 m
      - Mid (50%):      18,04 ft / 5,50 m
      - Quarterdeck (35%):   42,65 ft / 13,00 m (18,04 ft / 5,50 m before break)
      - Stern:      42,65 ft / 13,00 m
      - Average freeboard:   27,05 ft / 8,25 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 67,5%
      - Above water (accommodation/working, high = better): 120,9%
   Waterplane Area: 57.911 Square feet or 5.380 Square metres
   Displacement factor (Displacement / loading): 119%
   Structure weight / hull surface area: 196 lbs/sq ft or 959 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,93
      - Longitudinal: 1,93
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is excellent
   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

250 ton FC
25Ton Long range marconi
25 ton ERADe
100ton Crew Comfort
200 ton firefighting and damage control facilities (paranoïa with all that avgas)
1400 ton aviation space. 37 aircraft accommodated.
4 tripple torpedo tubes with 2 loads mounted side forward.

The extreme tall belt is inclined at 12°

Guinness

NEDS! Or are these 37 aircraft float planes? Even so, on a hull only 210m long, I suspect those 3 main gun mounts and all those aircraft would have great difficulty coexisting. This ship is 17m shorter than the KGVs, for instance.


maddox

Nope, I was thinking about the smaller 1916 Italian single engine fighters as mainstay of the ships compliment at the start. Maybe a stronger engine and a reinforced fuselage to cope with the stresses involved in carrier operations.

But it's 2 main gun mounts, 2 tripples, a Nelson set with C turret missing.  With a reasonable slow speed of 23 kts it means not much hullspace is needed for the normaly BIG things, like main gun barbettes ,magazines and engines.

The entire quarterdeck, 35% of the entire ship is 11 meter high hull. I dare to say that 73*20  meter is a nice hangar for single engined biplanes.

I wish I had better drawing skills.
But I know, the flightdeck is too short for good , reasonably safe operation.  On the other hand, with 70 meter of runway, a lot of lighter biplanes can take of in relative ease.

For that, we'll need a complete redesigned superstructure, with the flightdeck  ending at/over the superfiring main gun turret, and that mother is 7 meter above main deck, meaning flight deck should top 13-14m. Moving bridge and stacks to one side, and main secundary cluster below the flight deck balancing the weight of the bridge, mast and flues.

All in all, a modernisation in 1929 or so, if I start building her in 1920.

snip

and the mini-me award goes to...
QuoteAlaina Class, Irish Reconnaissance Aeroplane Carrier laid down 1920 (Engine 1912)

Displacement:
    2,189 t light; 2,243 t standard; 2,500 t normal; 2,705 t full load

Dimensions: Length overall / water x beam x draught
    334.00 ft / 325.00 ft x 32.00 ft x 14.00 ft (normal load)
    101.80 m / 99.06 m x 9.75 m  x 4.27 m

Armament:
      2 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1920 Model
      Breech loading guns in deck mounts
      on centreline, all forward, 1 raised mount
      16 - 0.98" / 25.0 mm guns (8x2 guns), 0.48lbs / 0.22kg shells, 1920 Model
      Machine guns in deck mounts
      on side, evenly spread
    Weight of broadside 72 lbs / 33 kg
    Shells per gun, main battery: 100

Armour:
   - Belts:        Width (max)    Length (avg)        Height (avg)
    Main:    0.50" / 13 mm    243.75 ft / 74.30 m    6.79 ft / 2.07 m
    Ends:    Unarmoured
    Upper:    0.10" / 3 mm    243.75 ft / 74.30 m    8.00 ft / 2.44 m
      Main Belt covers 115 % of normal length

   - Gun armour:    Face (max)    Other gunhouse (avg)    Barbette/hoist (max)
    Main:    1.00" / 25 mm    0.25" / 6 mm              -
    2nd:    0.50" / 13 mm          -                  -

   - Armour deck: 0.50" / 13 mm, Conning tower: 2.00" / 51 mm

Machinery:
    Diesel Internal combustion motors,
    Direct drive, 2 shafts, 17,709 shp / 13,211 Kw = 25.00 kts
    Range 5,000nm at 12.00 kts
    Bunker at max displacement = 462 tons

Complement:
    176 - 229

Cost:
    £0.433 million / $1.730 million

Distribution of weights at normal displacement:
    Armament: 9 tons, 0.4 %
    Armour: 124 tons, 5.0 %
       - Belts: 42 tons, 1.7 %
       - Torpedo bulkhead: 0 tons, 0.0 %
       - Armament: 4 tons, 0.2 %
       - Armour Deck: 70 tons, 2.8 %
       - Conning Tower: 8 tons, 0.3 %
    Machinery: 706 tons, 28.2 %
    Hull, fittings & equipment: 950 tons, 38.0 %
    Fuel, ammunition & stores: 311 tons, 12.4 %
    Miscellaneous weights: 400 tons, 16.0 %

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      2,735 lbs / 1,241 Kg = 85.5 x 4.0 " / 102 mm shells or 0.7 torpedoes
    Stability (Unstable if below 1.00): 1.03
    Metacentric height 1.0 ft / 0.3 m
    Roll period: 13.7 seconds
    Steadiness    - As gun platform (Average = 50 %): 66 %
            - Recoil effect (Restricted arc if above 1.00): 0.12
    Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
    Hull has rise aft of midbreak
    Block coefficient: 0.601
    Length to Beam Ratio: 10.16 : 1
    'Natural speed' for length: 18.03 kts
    Power going to wave formation at top speed: 61 %
    Trim (Max stability = 0, Max steadiness = 100): 33
    Bow angle (Positive = bow angles forward): 25.00 degrees
    Stern overhang: 0.14 ft / 0.04 m
    Freeboard (% = measuring location as a percentage of overall length):
       - Stem:        19.00 ft / 5.79 m
       - Forecastle (10 %):    17.00 ft / 5.18 m
       - Mid (20 %):        17.00 ft / 5.18 m (20.00 ft / 6.10 m aft of break)
       - Quarterdeck (15 %):    20.00 ft / 6.10 m
       - Stern:        20.00 ft / 6.10 m
       - Average freeboard:    19.48 ft / 5.94 m
    Ship tends to be wet forward

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 111.9 %
        - Above water (accommodation/working, high = better): 161.5 %
    Waterplane Area: 7,613 Square feet or 707 Square metres
    Displacement factor (Displacement / loading): 124 %
    Structure weight / hull surface area: 48 lbs/sq ft or 232 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 0.80
        - Longitudinal: 7.47
        - Overall: 1.00
    Hull space for machinery, storage, compartmentation is cramped
    Room for accommodation and workspaces is excellent
    Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Max Aircraft: 9 wheeled biplanes

The takeing off deck is above the aft deck and quarterdeck. Gunpoweder or Mechanical catapults may be fitted
there is no way you could reasonably hope to consistently land planes on that deck. Sure, a great pilot under just the right conditions might be able to do it. get a greenhorn to try it, and you have problems. Only really usable in coastal waters near land airbases. O wait...who has a lot of those... ;)
You smug-faced crowds with kindling eye
Who cheer when solider lads march by
Sneak home and pray that you'll never know
The hell where youth and laughter go.
-Siegfried Sassoon

damocles

#14
Quote from: Guinness on September 20, 2010, 08:30:53 PM
NEDS! Or are these 37 aircraft float planes? Even so, on a hull only 210m long, I suspect those 3 main gun mounts and all those aircraft would have great difficulty coexisting. This ship is 17m shorter than the KGVs, for instance.

That is not the only problem. Take-off and landing problems (established in the KMS Crapfest storyline as early as 2H1919) make me wonder about launch and recovery for air circuit cycles for such a design. The Dutch still have not established this completely (we are still in the superstructure takeoff and landing platform testing stages) but the KM now have indications that you will have takeoff problems with this design.