Iberian Small Cruiser Idea's for 1909

[miketr]

Between building the 2 large AC's and the coastal defense forts its not going to be till 1909 before I can do other construction.  At that point I think I am going to need some modern small cruisers.  The big debate is small gun (125mm) vs. large gun (152mm / 150mm).  Spanish designs had 105mm and later 125mm guns while portugal always used the 6" weapon.  Also how large of a design should I push for?  3,000 standard to 5,000 standard are options.

Some designs to follow.

[miketr]

PC-1909, Iberia Protected Cruiser laid down 1909

Displacement:
   3,103 t light; 3,244 t standard; 3,740 t normal; 4,137 t full load

Dimensions: Length overall / water x beam x draught
   350.00 ft / 350.00 ft x 44.00 ft x 17.00 ft (normal load)
   106.68 m / 106.68 m x 13.41 m  x 5.18 m

Armament:
      5 - 4.92" / 125 mm guns in single mounts, 59.59lbs / 27.03kg shells, 1909 Model
     Breech loading guns in deck mounts
     on centreline ends, majority forward, 2 raised mounts - superfiring
      6 - 4.92" / 125 mm guns in single mounts, 59.59lbs / 27.03kg shells, 1909 Model
     Breech loading guns in deck mounts
     on side, all amidships
      4 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1909 Model
     Quick firing guns in deck mounts
     on side, evenly spread
   Weight of broadside 707 lbs / 321 kg
   Shells per gun, main battery: 150
   4 - 18.0" / 457.2 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.00" / 76 mm   300.00 ft / 91.44 m   7.96 ft / 2.43 m
   Ends:   Unarmoured
     Main Belt covers 132 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   2.00" / 51 mm         -               -
   2nd:   2.00" / 51 mm         -               -
   3rd:   2.00" / 51 mm         -               -

   - Armour deck: 1.50" / 38 mm, Conning tower: 6.00" / 152 mm

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 2 shafts, 24,000 shp / 17,904 Kw = 25.59 kts
   Range 7,250nm at 10.00 kts
   Bunker at max displacement = 892 tons (100% coal)

Complement:
   238 - 310

Cost:
   £0.350 million / $1.400 million

Distribution of weights at normal displacement:
   Armament: 88 tons, 2.4 %
   Armour: 678 tons, 18.1 %
      - Belts: 289 tons, 7.7 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 73 tons, 1.9 %
      - Armour Deck: 285 tons, 7.6 %
      - Conning Tower: 31 tons, 0.8 %
   Machinery: 1,194 tons, 31.9 %
   Hull, fittings & equipment: 1,114 tons, 29.8 %
   Fuel, ammunition & stores: 637 tons, 17.0 %
   Miscellaneous weights: 29 tons, 0.8 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     2,844 lbs / 1,290 Kg = 47.7 x 4.9 " / 125 mm shells or 0.7 torpedoes
   Stability (Unstable if below 1.00): 1.29
   Metacentric height 2.3 ft / 0.7 m
   Roll period: 12.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.21
   Seaboat quality  (Average = 1.00): 1.01

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.500
   Length to Beam Ratio: 7.95 : 1
   'Natural speed' for length: 18.71 kts
   Power going to wave formation at top speed: 61 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   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:      20.58 ft / 6.27 m
      - Forecastle (20 %):   13.10 ft / 3.99 m
      - Mid (50 %):      13.10 ft / 3.99 m
      - Quarterdeck (15 %):   13.10 ft / 3.99 m
      - Stern:      13.10 ft / 3.99 m
      - Average freeboard:   13.70 ft / 4.18 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 122.8 %
      - Above water (accommodation/working, high = better): 93.4 %
   Waterplane Area: 10,261 Square feet or 953 Square metres
   Displacement factor (Displacement / loading): 98 %
   Structure weight / hull surface area: 66 lbs/sq ft or 323 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 1.94
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform

[miketr]

Same as above but with 150mm main guns.

PC-1909, Iberia Protected Cruiser laid down 1909

Displacement:
   3,086 t light; 3,244 t standard; 3,740 t normal; 4,137 t full load

Dimensions: Length overall / water x beam x draught
   350.00 ft / 350.00 ft x 44.00 ft x 17.00 ft (normal load)
   106.68 m / 106.68 m x 13.41 m  x 5.18 m

Armament:
      2 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1909 Model
     Breech loading guns in deck mounts
     on centreline ends, evenly spread
      6 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1909 Model
     Breech loading guns in deck mounts
     on side, all amidships
      4 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1909 Model
     Quick firing guns in deck mounts
     on side, evenly spread
   Weight of broadside 875 lbs / 397 kg
   Shells per gun, main battery: 150
   4 - 18.0" / 457.2 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.00" / 76 mm   300.00 ft / 91.44 m   7.96 ft / 2.43 m
   Ends:   Unarmoured
     Main Belt covers 132 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   2.00" / 51 mm         -               -
   2nd:   2.00" / 51 mm         -               -
   3rd:   2.00" / 51 mm         -               -

   - Armour deck: 1.30" / 33 mm, Conning tower: 6.00" / 152 mm

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 2 shafts, 24,000 shp / 17,904 Kw = 25.59 kts
   Range 7,250nm at 10.00 kts
   Bunker at max displacement = 892 tons (100% coal)

Complement:
   238 - 310

Cost:
   £0.366 million / $1.463 million

Distribution of weights at normal displacement:
   Armament: 109 tons, 2.9 %
   Armour: 634 tons, 16.9 %
      - Belts: 289 tons, 7.7 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 67 tons, 1.8 %
      - Armour Deck: 247 tons, 6.6 %
      - Conning Tower: 31 tons, 0.8 %
   Machinery: 1,185 tons, 31.7 %
   Hull, fittings & equipment: 1,130 tons, 30.2 %
   Fuel, ammunition & stores: 654 tons, 17.5 %
   Miscellaneous weights: 29 tons, 0.8 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     2,709 lbs / 1,229 Kg = 26.3 x 5.9 " / 150 mm shells or 0.7 torpedoes
   Stability (Unstable if below 1.00): 1.30
   Metacentric height 2.3 ft / 0.7 m
   Roll period: 12.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.24
   Seaboat quality  (Average = 1.00): 1.01

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.500
   Length to Beam Ratio: 7.95 : 1
   'Natural speed' for length: 18.71 kts
   Power going to wave formation at top speed: 61 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   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:      20.58 ft / 6.27 m
      - Forecastle (20 %):   13.10 ft / 3.99 m
      - Mid (50 %):      13.10 ft / 3.99 m
      - Quarterdeck (15 %):   13.10 ft / 3.99 m
      - Stern:      13.10 ft / 3.99 m
      - Average freeboard:   13.70 ft / 4.18 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 126.3 %
      - Above water (accommodation/working, high = better): 93.4 %
   Waterplane Area: 10,261 Square feet or 953 Square metres
   Displacement factor (Displacement / loading): 95 %
   Structure weight / hull surface area: 67 lbs/sq ft or 328 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 1.98
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform

[Borys]

I recommend the 150m gun version.

My views on cruiser armament have evolved. I do not see any benefit of c.5 inch guns.
Either 4 inchers, to destroy UNARMOURED opponents by a torrent of fire, or 5,5 inch or large guns, with an armour piercing shell of reasonable effectiveness. 3 inch armour (which you yourself carrry) makes you immune to 4 inch fire.
5 inchers (or thereabouts) are not that much more effective than 4 inchers in the armour beating department ...
Once you go 6 inch you never look back, baby ...

Your design has IMO a flaw - uninspiring seakeeping. With 25,5 knot top speed in heavier seas she will struggle to make 20-21 (if that), and can be caught and destroyed by any AC with top speed of c. 23 knots.

Borys

[miketr]

Quest for Speed pushes design size up... first 125mm gun armed design.

PC-1909, Iberia Protected Cruiser laid down 1909

Displacement:
   4,733 t light; 4,847 t standard; 5,676 t normal; 6,339 t full load

Dimensions: Length overall / water x beam x draught
   492.13 ft / 492.13 ft x 49.21 ft x 16.40 ft (normal load)
   150.00 m / 150.00 m x 15.00 m  x 5.00 m

Armament:
      5 - 4.92" / 125 mm guns in single mounts, 59.59lbs / 27.03kg shells, 1909 Model
     Breech loading guns in deck mounts
     on centreline ends, majority forward, 2 raised mounts - superfiring
      6 - 4.92" / 125 mm guns in single mounts, 59.59lbs / 27.03kg shells, 1909 Model
     Breech loading guns in deck mounts
     on side, all amidships
      4 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1909 Model
     Quick firing guns in deck mounts
     on side, evenly spread
   Weight of broadside 707 lbs / 321 kg
   Shells per gun, main battery: 0
   4 - 18.0" / 457.2 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2.95" / 75 mm   377.30 ft / 115.00 m   8.43 ft / 2.57 m
   Ends:   Unarmoured
     Main Belt covers 118 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm         -               -
   2nd:   1.97" / 50 mm         -               -
   3rd:   1.97" / 50 mm         -               -

   - Armour deck: 1.57" / 40 mm, Conning tower: 3.94" / 100 mm

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 3 shafts, 36,000 shp / 26,856 Kw = 27.72 kts
   Range 9,000nm at 10.00 kts
   Bunker at max displacement = 1,492 tons (100% coal)

Complement:
   326 - 425

Cost:
   £0.492 million / $1.968 million

Distribution of weights at normal displacement:
   Armament: 88 tons, 1.6 %
   Armour: 950 tons, 16.7 %
      - Belts: 381 tons, 6.7 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 72 tons, 1.3 %
      - Armour Deck: 470 tons, 8.3 %
      - Conning Tower: 27 tons, 0.5 %
   Machinery: 1,800 tons, 31.7 %
   Hull, fittings & equipment: 1,866 tons, 32.9 %
   Fuel, ammunition & stores: 942 tons, 16.6 %
   Miscellaneous weights: 29 tons, 0.5 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5,759 lbs / 2,612 Kg = 96.6 x 4.9 " / 125 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.45
   Metacentric height 3.3 ft / 1.0 m
   Roll period: 11.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 72 %
         - Recoil effect (Restricted arc if above 1.00): 0.13
   Seaboat quality  (Average = 1.00): 1.30

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.500
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 22.18 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 55
   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:      23.59 ft / 7.19 m
      - Forecastle (20 %):   14.99 ft / 4.57 m
      - Mid (50 %):      14.99 ft / 4.57 m
      - Quarterdeck (15 %):   14.99 ft / 4.57 m
      - Stern:      14.99 ft / 4.57 m
      - Average freeboard:   15.68 ft / 4.78 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 114.5 %
      - Above water (accommodation/working, high = better): 129.5 %
   Waterplane Area: 16,136 Square feet or 1,499 Square metres
   Displacement factor (Displacement / loading): 107 %
   Structure weight / hull surface area: 73 lbs/sq ft or 355 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.98
      - Longitudinal: 1.18
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[miketr]

150mm armed version of the above...

PC-1909, Iberia Protected Cruiser laid down 1909

Displacement:
   4,778 t light; 4,891 t standard; 5,676 t normal; 6,303 t full load

Dimensions: Length overall / water x beam x draught
   492.13 ft / 492.13 ft x 49.21 ft x 16.40 ft (normal load)
   150.00 m / 150.00 m x 15.00 m  x 5.00 m

Armament:
      2 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1909 Model
     Breech loading guns in deck mounts
     on centreline ends, evenly spread
      6 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1909 Model
     Breech loading guns in deck mounts
     on side, all amidships
      4 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1909 Model
     Quick firing guns in deck mounts
     on side, evenly spread
   Weight of broadside 875 lbs / 397 kg
   Shells per gun, main battery: 0
   4 - 18.0" / 457.2 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2.95" / 75 mm   377.30 ft / 115.00 m   8.43 ft / 2.57 m
   Ends:   Unarmoured
     Main Belt covers 118 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm         -               -
   2nd:   1.97" / 50 mm         -               -
   3rd:   1.97" / 50 mm         -               -

   - Armour deck: 1.57" / 40 mm, Conning tower: 3.94" / 100 mm

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 3 shafts, 36,000 shp / 26,856 Kw = 27.72 kts
   Range 8,500nm at 10.00 kts
   Bunker at max displacement = 1,412 tons (100% coal)

Complement:
   326 - 425

Cost:
   £0.511 million / $2.045 million

Distribution of weights at normal displacement:
   Armament: 109 tons, 1.9 %
   Armour: 945 tons, 16.6 %
      - Belts: 381 tons, 6.7 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 66 tons, 1.2 %
      - Armour Deck: 470 tons, 8.3 %
      - Conning Tower: 27 tons, 0.5 %
   Machinery: 1,800 tons, 31.7 %
   Hull, fittings & equipment: 1,895 tons, 33.4 %
   Fuel, ammunition & stores: 898 tons, 15.8 %
   Miscellaneous weights: 29 tons, 0.5 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5,533 lbs / 2,510 Kg = 53.7 x 5.9 " / 150 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.45
   Metacentric height 3.3 ft / 1.0 m
   Roll period: 11.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 72 %
         - Recoil effect (Restricted arc if above 1.00): 0.16
   Seaboat quality  (Average = 1.00): 1.30

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.500
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 22.18 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 55
   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:      23.59 ft / 7.19 m
      - Forecastle (20 %):   14.99 ft / 4.57 m
      - Mid (50 %):      14.99 ft / 4.57 m
      - Quarterdeck (15 %):   14.99 ft / 4.57 m
      - Stern:      14.99 ft / 4.57 m
      - Average freeboard:   15.68 ft / 4.78 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 117.0 %
      - Above water (accommodation/working, high = better): 129.5 %
   Waterplane Area: 16,136 Square feet or 1,499 Square metres
   Displacement factor (Displacement / loading): 104 %
   Structure weight / hull surface area: 74 lbs/sq ft or 361 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.98
      - Longitudinal: 1.21
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[Borys]

Ahoj!
The second design is very nice.
I'd cut down top speed to 27 knots, and increase ammo for main guns to 200 rounds.
Maybe gun hoists could be considered?

I'd also cut down main armament, switching from your
A
AA
AA
AA
A

to an

AA

AA

AA

arrangement,
and use the weight savings for thicker armour.
But IMO that's a question of personal taste.
I like your design.

Borys

[The Rock Doctor]

The 125mm version looks like it might start to get crowded - the 150mm version probably has a more convenient gun arrangement. 

I'd say both are fine - it's a question of whether you prefer weight of broadside or number of shells in the air.

[miketr]

Notes: I am going to have this as a mixed coal / oil design.  Which means I need to start working on oil fired soon.  It would be coal w/ oil spray and perhaps 1 or more of the boilers as pure oil fired.  Switched the 75's with 50mm quick fire guns.  Went for mount and hoist for the 150mm guns and a thicker belt, 105mm vs. 75mm.  Also some loss of range occured.

I was torn between the 125mm gun ship and this one.  Weight of fire I am a fan of but I figured to have Portugals school of thought win out and went for the bigger gun ship.

For those that are wondering why I have odd speeds I am going for speeds that result in SHP that make sense.  So she would be rated for 27.5 knots and perhaps 28.5 if the turbines are pushed to 110%. 

Any other comments?  I will start working on a line drawing soon I think.


PC-1909, Iberia Protected Cruiser laid down 1909

Displacement:
   4,984 t light; 5,097 t standard; 5,676 t normal; 6,138 t full load

Dimensions: Length overall / water x beam x draught
   492.13 ft / 492.13 ft x 49.21 ft x 16.40 ft (normal load)
   150.00 m / 150.00 m x 15.00 m  x 5.00 m

Armament:
      2 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1909 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread
      6 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1909 Model
     Breech loading guns in deck mounts with hoists
     on side, all amidships
      4 - 1.97" / 50.0 mm guns in single mounts, 3.81lbs / 1.73kg shells, 1909 Model
     Quick firing guns in deck mounts
     on side, evenly spread
   Weight of broadside 839 lbs / 381 kg
   Shells per gun, main battery: 0
   4 - 18.0" / 457.2 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   4.13" / 105 mm   364.17 ft / 111.00 m   8.43 ft / 2.57 m
   Ends:   Unarmoured
     Main Belt covers 114 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm         -               -
   2nd:   1.97" / 50 mm         -               -
   3rd:   1.97" / 50 mm         -               -

   - Armour deck: 1.57" / 40 mm, Conning tower: 3.94" / 100 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 36,000 shp / 26,856 Kw = 27.72 kts
   Range 7,000nm at 10.00 kts
   Bunker at max displacement = 1,041 tons (67% coal)

Complement:
   326 - 425

Cost:
   £0.506 million / $2.026 million

Distribution of weights at normal displacement:
   Armament: 105 tons, 1.8 %
   Armour: 1,077 tons, 19.0 %
      - Belts: 518 tons, 9.1 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 61 tons, 1.1 %
      - Armour Deck: 470 tons, 8.3 %
      - Conning Tower: 27 tons, 0.5 %
   Machinery: 1,743 tons, 30.7 %
   Hull, fittings & equipment: 2,031 tons, 35.8 %
   Fuel, ammunition & stores: 692 tons, 12.2 %
   Miscellaneous weights: 29 tons, 0.5 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5,545 lbs / 2,515 Kg = 53.8 x 5.9 " / 150 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.28
   Metacentric height 2.7 ft / 0.8 m
   Roll period: 12.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.33
   Seaboat quality  (Average = 1.00): 1.23

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.500
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 22.18 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 57
   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:      23.59 ft / 7.19 m
      - Forecastle (20 %):   14.99 ft / 4.57 m
      - Mid (50 %):      14.99 ft / 4.57 m
      - Quarterdeck (15 %):   14.99 ft / 4.57 m
      - Stern:      14.99 ft / 4.57 m
      - Average freeboard:   15.68 ft / 4.78 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 113.2 %
      - Above water (accommodation/working, high = better): 129.5 %
   Waterplane Area: 16,136 Square feet or 1,499 Square metres
   Displacement factor (Displacement / loading): 105 %
   Structure weight / hull surface area: 79 lbs/sq ft or 387 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.98
      - Longitudinal: 1.22
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[The Rock Doctor]

For those that are wondering why I have odd speeds I am going for speeds that result in SHP that make sense.  So she would be rated for 27.5 knots and perhaps 28.5 if the turbines are pushed to 110%.

This is how I do things as well.

Looks quite capable to me.  Look forward to the pic.

[Borys]

Ahoj!
You are limited to 10% oil, 90% coal.
Nice ship, I like her.
Borys

[miketr]

Ahoj!
You are limited to 10% oil, 90% coal.
Nice ship, I like her.
Borys

Even with oil firing tech?

Michael

[miketr]

Special thanks to www.german-navy.de for having such nice pictures to use as a source to alter.

[Borys]

Even with oil firing tech?

Michael

No.
Borys

[miketr]

This link is the raw picture source of my cruiser.  any changes done of course.

http://www.german-navy.de/hochseeflotte/ships/smallcruiser/kolberg/index.html

The start picture is 130 meters vs. my 150 meters and so I choose to stretch the picture.  While in theory keeping things to scale; large amounts of hand waving of course.  I suspect the stacks would be more forward but other than that...  What do people think of this drawing?