With 3T2x275 - 120mm belt - 27kts
9400T cruiser, Peru AC laid down 1920 (Engine 1916)
Displacement:
9 400 t light; 9 948 t standard; 10 696 t normal; 11 294 t full load
Dimensions: Length overall / water x beam x draught
557.74 ft / 557.74 ft x 65.62 ft x 20.46 ft (normal load)
170.00 m / 170.00 m x 20.00 m x 6.24 m
Armament:
6 - 10.83" / 275 mm guns (3x2 guns), 661.39lbs / 300.00kg shells, 1920 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward
12 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1920 Model
Breech loading guns in casemate mounts
on side, evenly spread
4 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1920 Model
Quick firing guns in casemate mounts
on side, evenly spread, all raised mounts
4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1920 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 4 655 lbs / 2 112 kg
Shells per gun, main battery: 125
12 - 21.0" / 533.4 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5.51" / 140 mm 360.89 ft / 110.00 m 10.17 ft / 3.10 m
Ends: 1.57" / 40 mm 190.29 ft / 58.00 m 8.01 ft / 2.44 m
6.56 ft / 2.00 m Unarmoured ends
Main Belt covers 100 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.51" / 140 mm 1.57" / 40 mm 3.94" / 100 mm
2nd: 0.79" / 20 mm - -
3rd: 0.79" / 20 mm - -
4th: 0.50" / 13 mm - -
- Armour deck: 1.57" / 40 mm, Conning tower: 5.51" / 140 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 48 000 shp / 35 808 Kw = 27.19 kts
Range 7 000nm at 12.00 kts
Bunker at max displacement = 1 346 tons
Complement:
525 - 683
Cost:
£2.485 million / $9.939 million
Distribution of weights at normal displacement:
Armament: 562 tons, 5.3 %
Armour: 2 118 tons, 19.8 %
- Belts: 944 tons, 8.8 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 406 tons, 3.8 %
- Armour Deck: 710 tons, 6.6 %
- Conning Tower: 58 tons, 0.5 %
Machinery: 1 788 tons, 16.7 %
Hull, fittings & equipment: 4 532 tons, 42.4 %
Fuel, ammunition & stores: 1 295 tons, 12.1 %
Miscellaneous weights: 400 tons, 3.7 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
11 994 lbs / 5 441 Kg = 18.9 x 10.8 " / 275 mm shells or 1.7 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 3.3 ft / 1.0 m
Roll period: 15.3 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.78
Seaboat quality (Average = 1.00): 1.22
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.500
Length to Beam Ratio: 8.50 : 1
'Natural speed' for length: 23.62 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 58
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: 23.62 ft / 7.20 m
- Forecastle (19 %): 19.69 ft / 6.00 m
- Mid (40 %): 16.40 ft / 5.00 m
- Quarterdeck (18 %): 16.40 ft / 5.00 m
- Stern: 16.40 ft / 5.00 m
- Average freeboard: 17.67 ft / 5.39 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 98.6 %
- Above water (accommodation/working, high = better): 116.1 %
Waterplane Area: 24 384 Square feet or 2 265 Square metres
Displacement factor (Displacement / loading): 101 %
Structure weight / hull surface area: 124 lbs/sq ft or 606 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.42
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
----------------------
With 3T2x340 - 230mm belt - 22.4kts
12800T cruiser, Peru EC laid down 1918 (Engine 1916)
Displacement:
12 800 t light; 13 536 t standard; 14 440 t normal; 15 164 t full load
Dimensions: Length overall / water x beam x draught
557.74 ft / 557.74 ft x 72.18 ft x 20.92 ft (normal load)
170.00 m / 170.00 m x 22.00 m x 6.38 m
Armament:
6 - 13.39" / 340 mm guns (3x2 guns), 1 200.00lbs / 544.31kg shells, 1918 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward
12 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1918 Model
Breech loading guns in casemate mounts
on side, evenly spread
4 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1918 Model
Quick firing guns in casemate mounts
on side, evenly spread, all raised mounts
4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1918 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 7 887 lbs / 3 577 kg
Shells per gun, main battery: 100
6 - 21.0" / 533.4 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 9.06" / 230 mm 400.26 ft / 122.00 m 10.17 ft / 3.10 m
Ends: 1.57" / 40 mm 144.36 ft / 44.00 m 8.01 ft / 2.44 m
13.12 ft / 4.00 m Unarmoured ends
Main Belt covers 110 % of normal length
- Torpedo Bulkhead:
1.57" / 40 mm 400.26 ft / 122.00 m 20.73 ft / 6.32 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 9.84" / 250 mm 3.94" / 100 mm 9.06" / 230 mm
2nd: 0.79" / 20 mm - -
3rd: 0.79" / 20 mm - -
4th: 0.50" / 13 mm - -
- Armour deck: 2.56" / 65 mm, Conning tower: 9.06" / 230 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 29 000 shp / 21 634 Kw = 22.46 kts
Range 7 000nm at 12.00 kts
Bunker at max displacement = 1 629 tons
Complement:
658 - 856
Cost:
£2.854 million / $11.415 million
Distribution of weights at normal displacement:
Armament: 985 tons, 6.8 %
Armour: 4 603 tons, 31.9 %
- Belts: 1 618 tons, 11.2 %
- Torpedo bulkhead: 484 tons, 3.3 %
- Armament: 991 tons, 6.9 %
- Armour Deck: 1 394 tons, 9.7 %
- Conning Tower: 116 tons, 0.8 %
Machinery: 1 080 tons, 7.5 %
Hull, fittings & equipment: 5 792 tons, 40.1 %
Fuel, ammunition & stores: 1 640 tons, 11.4 %
Miscellaneous weights: 340 tons, 2.4 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
17 746 lbs / 8 050 Kg = 14.8 x 13.4 " / 340 mm shells or 3.2 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 3.7 ft / 1.1 m
Roll period: 15.7 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.79
Seaboat quality (Average = 1.00): 1.22
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.600
Length to Beam Ratio: 7.73 : 1
'Natural speed' for length: 23.62 kts
Power going to wave formation at top speed: 45 %
Trim (Max stability = 0, Max steadiness = 100): 58
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: 21.00 ft / 6.40 m
- Forecastle (20 %): 16.73 ft / 5.10 m
- Mid (50 %): 13.45 ft / 4.10 m
- Quarterdeck (18 %): 13.45 ft / 4.10 m
- Stern: 13.45 ft / 4.10 m
- Average freeboard: 14.94 ft / 4.55 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 108.3 %
- Above water (accommodation/working, high = better): 108.9 %
Waterplane Area: 29 443 Square feet or 2 735 Square metres
Displacement factor (Displacement / loading): 96 %
Structure weight / hull surface area: 144 lbs/sq ft or 703 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 1.09
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
I'd say, try that AC with a 12cm belt instead of the 14cm one you used in the sim. May free up enough tonnage to get some more speed, or you may have to go 10k, but 27kts isn't going to be fast enough by the time she's in service (1920 lay down, 1921-22 in service).
As to the EC...I'm still not sold on the concept. I understand what you're trying to do with them, but if an enemy attacks your fleet your BBs will engage their BBs, leaving BCs (Guns as big as yours, same armor, much more speed) or ACs (smaller guns, same armor, much more speed) either way you're at a disadvantage. You can only bring 2 guns to bare on either end, and if they're smart they'll attack at angles preventing you from getting all 3 turrets to bare on them.
Also, I'd ditch the 3" guns on both..useless by that time, even DDs will shrug off 3" guns by 1922. Also, your casemate armour will be the death of both ships, remember the nasty fire on Siligia at Crete? That's was with 4" armor, not 40mm.
Made for coastal work - nearly the max on a 120m hull
5000T Protector, Peru protected Cruiser laid down 1918 (Engine 1916)
Displacement:
5 000 t light; 5 388 t standard; 5 900 t normal; 6 309 t full load
Dimensions: Length overall / water x beam x draught
393.70 ft / 393.70 ft x 58.33 ft x 16.20 ft (normal load)
120.00 m / 120.00 m x 17.78 m x 4.94 m
Armament:
8 - 9.06" / 230 mm guns (4x2 guns), 371.24lbs / 168.39kg shells, 1918 Model
Breech loading guns in turrets (on barbettes)
on centreline, evenly spread
Aft Main mounts separated by engine room
Turrets disposition ala VdT
4 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.92kg shells, 1918 Model
Quick firing guns in deck mounts
on side, all amidships
4 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.89kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1918 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 3 189 lbs / 1 446 kg
Shells per gun, main battery: 150
6 - 21.0" / 533.4 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.15" / 80 mm 255.91 ft / 78.00 m 10.17 ft / 3.10 m
Ends: 1.57" / 40 mm 131.23 ft / 40.00 m 7.87 ft / 2.40 m
6.56 ft / 2.00 m Unarmoured ends
Main Belt covers 100 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.15" / 80 mm 1.18" / 30 mm 1.57" / 40 mm
2nd: 0.79" / 20 mm - -
3rd: 0.79" / 20 mm - -
4th: 0.50" / 13 mm - -
- Armour deck: 1.18" / 30 mm, Conning tower: 3.15" / 80 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 21 000 shp / 15 666 Kw = 23.09 kts
Range 7 000nm at 12.00 kts
Bunker at max displacement = 921 tons
Complement:
336 - 437
Cost:
£1.239 million / $4.955 million
Distribution of weights at normal displacement:
Armament: 399 tons, 6.8 %
Armour: 990 tons, 16.8 %
- Belts: 416 tons, 7.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 201 tons, 3.4 %
- Armour Deck: 352 tons, 6.0 %
- Conning Tower: 22 tons, 0.4 %
Machinery: 782 tons, 13.3 %
Hull, fittings & equipment: 2 629 tons, 44.6 %
Fuel, ammunition & stores: 900 tons, 15.2 %
Miscellaneous weights: 200 tons, 3.4 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7 102 lbs / 3 222 Kg = 19.1 x 9.1 " / 230 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 2.6 ft / 0.8 m
Roll period: 15.2 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.97
Seaboat quality (Average = 1.00): 1.19
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.555
Length to Beam Ratio: 6.75 : 1
'Natural speed' for length: 19.84 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 60
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: 22.31 ft / 6.80 m
- Forecastle (20 %): 19.03 ft / 5.80 m
- Mid (50 %): 15.75 ft / 4.80 m
- Quarterdeck (18 %): 15.75 ft / 4.80 m
- Stern: 15.75 ft / 4.80 m
- Average freeboard: 17.16 ft / 5.23 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 98.9 %
- Above water (accommodation/working, high = better): 123.8 %
Waterplane Area: 16 103 Square feet or 1 496 Square metres
Displacement factor (Displacement / loading): 99 %
Structure weight / hull surface area: 111 lbs/sq ft or 540 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.92
- Longitudinal: 2.22
- 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
Always the max in a 120m SW.
6600T cruiser, Peru Escort Cruiser laid down 1918 (Engine 1916)
Displacement:
6 600 t light; 7 075 t standard; 7 666 t normal; 8 138 t full load
Dimensions: Length overall / water x beam x draught
393.70 ft / 393.70 ft x 65.62 ft x 20.77 ft (normal load)
120.00 m / 120.00 m x 20.00 m x 6.33 m
Armament:
6 - 10.83" / 275 mm guns (3x2 guns), 661.39lbs / 300.00kg shells, 1918 Model
Breech loading guns in turrets (on barbettes)
on centreline, evenly spread
Aft Main mounts separated by engine room
10 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1918 Model
Quick firing guns in casemate mounts
on side, evenly spread, 4 raised mounts
4 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.88kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1918 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 4 504 lbs / 2 043 kg
Shells per gun, main battery: 125
6 - 21.0" / 533 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.72" / 120 mm 255.91 ft / 78.00 m 10.17 ft / 3.10 m
Ends: 1.57" / 40 mm 124.67 ft / 38.00 m 8.01 ft / 2.44 m
13.12 ft / 4.00 m Unarmoured ends
Main Belt covers 100 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.51" / 140 mm 2.36" / 60 mm 3.94" / 100 mm
2nd: 1.57" / 40 mm - -
3rd: 0.79" / 20 mm - -
4th: 0.50" / 13 mm - -
- Armour deck: 1.57" / 40 mm, Conning tower: 4.72" / 120 mm
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 3 shafts, 22 000 shp / 16 412 Kw = 22.53 kts
Range 7 000nm at 12.00 kts
Bunker at max displacement = 1 064 tons
Complement:
409 - 532
Cost:
£1.603 million / $6.414 million
Distribution of weights at normal displacement:
Armament: 543 tons, 7.1 %
Armour: 1 573 tons, 20.5 %
- Belts: 595 tons, 7.8 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 437 tons, 5.7 %
- Armour Deck: 501 tons, 6.5 %
- Conning Tower: 40 tons, 0.5 %
Machinery: 820 tons, 10.7 %
Hull, fittings & equipment: 3 365 tons, 43.9 %
Fuel, ammunition & stores: 1 065 tons, 13.9 %
Miscellaneous weights: 300 tons, 3.9 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
8 943 lbs / 4 056 Kg = 14.1 x 10.8 " / 275 mm shells or 1.6 torpedoes
Stability (Unstable if below 1.00): 1.07
Metacentric height 3.0 ft / 0.9 m
Roll period: 15.9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.90
Seaboat quality (Average = 1.00): 1.30
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.500
Length to Beam Ratio: 6.00 : 1
'Natural speed' for length: 19.84 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 54
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: 23.62 ft / 7.20 m
- Forecastle (22 %): 19.69 ft / 6.00 m
- Mid (50 %): 16.40 ft / 5.00 m
- Quarterdeck (20 %): 16.40 ft / 5.00 m
- Stern: 16.40 ft / 5.00 m
- Average freeboard: 17.93 ft / 5.47 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 93.1 %
- Above water (accommodation/working, high = better): 115.8 %
Waterplane Area: 17 212 Square feet or 1 599 Square metres
Displacement factor (Displacement / loading): 98 %
Structure weight / hull surface area: 130 lbs/sq ft or 633 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.89
- Longitudinal: 2.89
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
(http://img268.imageshack.us/img268/4995/19186600t3t2x275120m.jpg) (http://img268.imageshack.us/i/19186600t3t2x275120m.jpg/)
They look good. You'll need a BB or BC to beat them, no normal raider will try to close with these.
... A new design is comming with 2T3x275+8x120 - 22.5Kts - 6700t, always 120m lenght.
This kind of ship could be interresting for small countries with low BPs & just 120m SWs .
;)
I add 300t of protection, so, the displacement increase to 7000t.
A cruiser could be built in 1 year - 2HY x 3.5BPs
120x20
2T3x275
22.4kts-7000nm@12kts
belt 140mm
turret 160mm
...
Get the speed to 22 or 22.5 kts, is easier for the moderators....
I would go for 22 kts, what will give you approx 150 tons extra for protection or armament.
Quote from: maddox on July 27, 2009, 03:47:33 PM
Get the speed to 22 or 22.5 kts, is easier for the moderators....
I would go for 22 kts, what will give you approx 150 tons extra for protection or armament.
I still think she's to slow, but meh. And as to odd decimal speeds, I go for round SHP numbers, not speed.
For an dedicated convoy escort she's fine in speed. A BB, big AC or BC is needed to counter her, and that will make convoy raiding an expensive issue.
On the other hand, she's only useable as convoy raider or coastal bombardment/amphib support vessel.
Not very useable as fleet screen.
Quote...Not very useable as fleet screen...
She is not made to screen the Fleet but to engage enemy cruisers & support 340mm Battleships in action.
Slow cruisers that she'll engage then.
I'm scrapping all the oldies that won't get up to 25 kts at least. And replace them with 30 kts designs.
I've got to agree. I understand Peru's need for economy, but 22 knots isn't fast enough for battleships anymore, IMHO, much less cruisers.
I don't believe much in the escort cruiser idea at all anyway though. Maybe Peru should consider just building lots of little 28cm or 305mm BBs to do it all? Quick figuring tells me that you could build an 8x28cm, 23 knot ship with protection beyond adequate on 12,000 tons with 1916 engines. The only thing I couldn't squeeze out of that ship is making it fit in a type 1 dd, but 6 guns definitely would, probably on 8000 or less tons.
Such a ship wouldn't be able to take on a 35,000 ton 38cm armed monster, of course, but would be both sufficient for most independent operations Peru might take on, and you might be able to build enough of them to operate an adequate battle line. And when operating with your allies, they could still be used as "escort cruisers".
Year after year BBs are heavier.
Peru could'nt built 35 000 or 45 000t BBs, they need too much BPs.
I have decided to built smaller Battle ships but in greater quantity.
"we like fun and games... "
;)
Quote from: Jefgte on July 28, 2009, 10:22:38 AM
Year after year BBs are heavier.
Peru could'nt built 35 000 or 45 000t BBs, they need too much BPs.
I have decided to built smaller Battle ships but in greater quantity.
"we like fun and games... "
;)
Honestly, and it was were I was going w/ NUS, w/ GC and Iberia as allies, you should let them build BBs and you build crap loads of cruisers. ~10-12Kton 30kt 9.2" gunned CL killers. Keep some of your old BBs for coast defense and then augment the ACs w/ DDs and TBs and lots of subs. That's what I would do, but that's me.
I agree partialy with you, but Peru want a battle squadron with big guns too.
Fast cruisers are going to be laid down with the new engines techno.
;)
(http://img199.imageshack.us/img199/9572/1918ec7000t6x275.jpg) (http://img199.imageshack.us/i/1918ec7000t6x275.jpg/)
7000T cruiser, Peru Escort Cruiser laid down 1918 (Engine 1916)
Displacement:
7 000 t light; 7 473 t standard; 8 083 t normal; 8 570 t full load
Dimensions: Length overall / water x beam x draught
393.70 ft / 393.70 ft x 65.62 ft x 21.90 ft (normal load)
120.00 m / 120.00 m x 20.00 m x 6.68 m
Armament:
6 - 10.83" / 275 mm guns (2x3 guns), 661.39lbs / 300.00kg shells, 1918 Model
Breech loading guns in turrets (on barbettes)
on centreline, evenly spread
12 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1918 Model
Quick firing guns in casemate mounts
on side, evenly spread, 4 raised mounts
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.88kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1918 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 4 609 lbs / 2 091 kg
Shells per gun, main battery: 118
6 - 21.0" / 533 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5.91" / 150 mm 255.91 ft / 78.00 m 11.15 ft / 3.40 m
Ends: 1.57" / 40 mm 131.23 ft / 40.00 m 8.01 ft / 2.44 m
6.56 ft / 2.00 m Unarmoured ends
Main Belt covers 100 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 6.30" / 160 mm 3.15" / 80 mm 5.51" / 140 mm
2nd: 0.79" / 20 mm - -
3rd: 0.79" / 20 mm - -
4th: 0.50" / 13 mm - -
- Armour deck: 1.57" / 40 mm, Conning tower: 5.91" / 150 mm
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 4 shafts, 22 000 shp / 16 412 Kw = 22.35 kts
Range 7 000nm at 12.00 kts
Bunker at max displacement = 1 097 tons
Complement:
426 - 554
Cost:
£1.654 million / $6.614 million
Distribution of weights at normal displacement:
Armament: 556 tons, 6.9 %
Armour: 1 813 tons, 22.4 %
- Belts: 798 tons, 9.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 462 tons, 5.7 %
- Armour Deck: 501 tons, 6.2 %
- Conning Tower: 51 tons, 0.6 %
Machinery: 820 tons, 10.1 %
Hull, fittings & equipment: 3 511 tons, 43.4 %
Fuel, ammunition & stores: 1 083 tons, 13.4 %
Miscellaneous weights: 300 tons, 3.7 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
9 445 lbs / 4 284 Kg = 14.9 x 10.8 " / 275 mm shells or 1.7 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 2.9 ft / 0.9 m
Roll period: 16.2 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.93
Seaboat quality (Average = 1.00): 1.31
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.500
Length to Beam Ratio: 6.00 : 1
'Natural speed' for length: 19.84 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 54
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: 23.62 ft / 7.20 m
- Forecastle (23 %): 19.69 ft / 6.00 m
- Mid (50 %): 16.40 ft / 5.00 m
- Quarterdeck (21 %): 16.40 ft / 5.00 m
- Stern: 16.40 ft / 5.00 m
- Average freeboard: 17.95 ft / 5.47 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 89.4 %
- Above water (accommodation/working, high = better): 111.2 %
Waterplane Area: 17 212 Square feet or 1 599 Square metres
Displacement factor (Displacement / loading): 99 %
Structure weight / hull surface area: 133 lbs/sq ft or 652 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.88
- Longitudinal: 3.08
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
You could shave off a tad of freeboard, what would would give you a tad more tonnage to invest in speed or armor.
Exact.
When I decrease freaboard by 0.5m everywhere, Overall is 1.04 & recoil decrease to 0.84
I could extend the belt height to 3.7m & increase the deck armor to 50mm
Stability 1.04
Seaboat quality 1.21
Thanks ;)
For a Budget BB it's a good job.
One thing that could be changed, is the secundaries.
8 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1918 Model
Quick firing guns in casemate mounts
on side, evenly spread, 4 raised mounts
2 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1918 Model
Quick firing guns in casemate mounts
centerline ends, 2 raised mounts
Update
(http://img228.imageshack.us/img228/9572/1918ec7000t6x275.jpg) (http://img228.imageshack.us/i/1918ec7000t6x275.jpg/)
7000T cruiser, Peru Squadron Cruiser laid down 1918 (Engine 1916)
Displacement:
7 000 t light; 7 464 t standard; 8 074 t normal; 8 561 t full load
Dimensions: Length overall / water x beam x draught
393.70 ft / 393.70 ft x 65.62 ft x 21.88 ft (normal load)
120.00 m / 120.00 m x 20.00 m x 6.67 m
Armament:
6 - 10.83" / 275 mm guns (2x3 guns), 661.39lbs / 300.00kg shells, 1918 Model
Breech loading guns in turrets (on barbettes)
on centreline, evenly spread
8 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1918 Model
Quick firing guns in casemate mounts
on side, evenly spread, 4 raised mounts
2 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1918 Model
Quick firing guns in casemate mounts
on centreline ends, evenly spread
4 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.88kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1918 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 4 504 lbs / 2 043 kg
Shells per gun, main battery: 118
6 - 21.0" / 533 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5.91" / 150 mm 255.91 ft / 78.00 m 11.81 ft / 3.60 m
Ends: 1.57" / 40 mm 131.23 ft / 40.00 m 8.01 ft / 2.44 m
6.56 ft / 2.00 m Unarmoured ends
Main Belt covers 100 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 6.30" / 160 mm 3.94" / 100 mm 5.91" / 150 mm
2nd: 0.79" / 20 mm - -
3rd: 0.79" / 20 mm - -
4th: 0.50" / 13 mm - -
- Armour deck: 1.77" / 45 mm, Conning tower: 5.91" / 150 mm
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 4 shafts, 22 000 shp / 16 412 Kw = 22.35 kts
Range 7 000nm at 12.00 kts
Bunker at max displacement = 1 097 tons
Complement:
425 - 553
Cost:
£1.631 million / $6.526 million
Distribution of weights at normal displacement:
Armament: 543 tons, 6.7 %
Armour: 1 930 tons, 23.9 %
- Belts: 841 tons, 10.4 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 474 tons, 5.9 %
- Armour Deck: 564 tons, 7.0 %
- Conning Tower: 51 tons, 0.6 %
Machinery: 820 tons, 10.2 %
Hull, fittings & equipment: 3 407 tons, 42.2 %
Fuel, ammunition & stores: 1 074 tons, 13.3 %
Miscellaneous weights: 300 tons, 3.7 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
9 063 lbs / 4 111 Kg = 14.3 x 10.8 " / 275 mm shells or 1.7 torpedoes
Stability (Unstable if below 1.00): 1.04
Metacentric height 2.8 ft / 0.9 m
Roll period: 16.3 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.83
Seaboat quality (Average = 1.00): 1.20
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.500
Length to Beam Ratio: 6.00 : 1
'Natural speed' for length: 19.84 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 58
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: 21.98 ft / 6.70 m
- Forecastle (23 %): 18.04 ft / 5.50 m
- Mid (50 %): 14.76 ft / 4.50 m
- Quarterdeck (21 %): 14.76 ft / 4.50 m
- Stern: 14.76 ft / 4.50 m
- Average freeboard: 16.31 ft / 4.97 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 88.3 %
- Above water (accommodation/working, high = better): 100.8 %
Waterplane Area: 17 212 Square feet or 1 599 Square metres
Displacement factor (Displacement / loading): 98 %
Structure weight / hull surface area: 132 lbs/sq ft or 647 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.89
- Longitudinal: 2.75
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
No offense Jef, but it looks like an underarmored, overranged, highspeed CDS.
It is an underarmored, overranged Coastal defence ship.
So, what would you , Sam, use against it when it's is escorting a convoy? Preferably with a sister or 2 (3 of these are still lighter/cheaper than a new BB/BC)
Quote from: maddox on August 02, 2009, 08:40:37 PM
It is an underarmored, overranged Coastal defence ship.
So, what would you , Sam, use against it when it's is escorting a convoy? Preferably with a sister or 2 (3 of these are still lighter/cheaper than a new BB/BC)
Presuming they would be positioned AROUND the convoy, as opposed to GROUPED and only have 5 12cm per side I'd start w/ a mass DD attack w/ some CLs to provide support fire followed up w/ a sub attack once they are even more spread out. Probably 2 CL w/4 DD each. My CLs weigh in ~4000t, so there's 8K, plus 8x500t for TBs, so another 4K. So 12000t in service ships plus 2-3 500t SS, so 1000-1500t...grand total 13000-13500t spent to counter 21000t of warships. Looks good to me.
I think a ship with 8x9.2" could take one of these. One of those on a bit more displacement could be fast enough for general purpose roles.
Could this ship make 27 knots on less then 12,000 tons I wonder?
My fear with this ship is it will be helplessly slow for even battleline escort in 10 years. In that regard this may be a case of false economy.
It was a challenge to study this kind of ship.
I think, one of the most powerfull for 120m lenght.
6x275 on a 7000t hull at 22.3kts with correct protection.
In the battleline, she could engage enemy cruisers inf to 10000t.
;)
It certainly packs a punch - but agree the low speed limit's its capability for the future.
Possible a 6 x 9.2 inch version - to make 25/6 knots with same protection - still a handful for any cruiser - and much more difficult to outmanouevre - you need 3/4 knot advantage to get past/round quickly - and 30 knots is very expensive on fuel ....
Overall - I think would be more effective vs cruisers - and not quite such deadmeat vs Large AC/BC
I'd agree on shrinking the main batteries to the 230-240mm calibre range, and I'd up the armour. Speed isn't really a concern - it's an escort cruiser, and therefore it only needs to be faster than what it's escorting. Merchies won't be making this ship's speed advantage too small for a very long time...
I have to say I blinked twice at the end casemates.
I would make the end casemates superfiring over the main turrets.
But how they would work, that's another question. Casemates with a traverse more than 180°?
Maybe a giant Scarf ring setup?
I've always figured the forward casements on the US Omaha class CLs could bear both forward (which is how they are usually pictured) and to the side, figured that was an advantage of a corner casement. Rather expect the end casements on my vessels to bear in such a manner.