WesWorld

Here is the training carrier Astraios.
[size=2]Astraios Class Training Carrier[/size]
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AC-6 Astraios [size=1](refitted) 01/Jul/31 to 12/Oct/33[/size]

Astraios as refitted 1933.
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Here is the best I could whip up w/ the limited information available. I used the image to figure L/B/D as well as freeboard and there are sim reports from 1927 listing a refit (presumed 25%) that show tonnage needed as 2920t. That gives me a light weight of 11680t. The only way I could get her light weight down to that w/o a ridiculously low BC is to load her up w/ fuel (she was an oil tanker originally) and then note in the sim that most of that former bunkerage (e.g. the open space) was converted to some kind of storage (avgas, parts, etc) or filled with water to keep the ship on an even keel.

Astraios, Greek Aircraft Carrier (Training) laid down 1917 (Engine 1931)

Displacement:
11,680 t light; 11,998 t standard; 15,921 t normal; 19,060 t full load

Dimensions: Length overall / water x beam x draught
521.33 ft / 505.50 ft x 68.30 ft x 26.90 ft (normal load)
158.90 m / 154.08 m x 20.82 m x 8.20 m

Machinery:
Oil fired boilers, complex reciprocating steam engines,
Direct drive, 1 shaft, 9,000 ihp / 6,714 Kw = 16.03 kts
Range 46,845nm at 10.00 kts
*Actual range = 3,883nm at 12 kts
Bunker at max displacement = 7,061 tons
*Actual Bunker = 1000 tons*

Complement:
708 - 921

Cost:
£0.873 million / $3.492 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Machinery: 510 tons, 3.2 %
Hull, fittings & equipment: 10,670 tons, 67.0 %
Fuel, ammunition & stores: 4,241 tons, 26.6 %
Miscellaneous weights: 500 tons, 3.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
105,222 lbs / 47,728 Kg = 974.3 x 6 " / 152 mm shells or 17.0 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 3.5 ft / 1.1 m
Roll period: 15.3 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised forecastle, rise forward of midbreak, raised quarterdeck
Block coefficient: 0.600
Length to Beam Ratio: 7.40 : 1
'Natural speed' for length: 22.48 kts
Power going to wave formation at top speed: 32 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 6.40 degrees
Stern overhang: 11.72 ft / 3.57 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 36.60 ft / 11.16 m
- Forecastle (12 %): 28.30 ft / 8.63 m (25.50 ft / 7.77 m aft of break)
- Mid (45 %): 25.50 ft / 7.77 m (14.50 ft / 4.42 m aft of break)
- Quarterdeck (36 %): 24.80 ft / 7.56 m (14.50 ft / 4.42 m before break)
- Stern: 26.90 ft / 8.20 m
- Average freeboard: 24.33 ft / 7.42 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 15.7 %
- Above water (accommodation/working, high = better): 143.2 %
Waterplane Area: 24,700 Square feet or 2,295 Square metres
Displacement factor (Displacement / loading): 1,000 %
Structure weight / hull surface area: 252 lbs/sq ft or 1,231 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 2.61
- Longitudinal: 6.24
- Overall: 2.85
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, rides out heavy weather easily

6061t bunkerage = former oil storage capacity, now filled with water, low stowed cargo, avgas, and misc. (e.g. only way I could get her weight out right w/o a ridiculously low BC)


Does this work? Or does someone else have a better way of doing this? For that matter, should I even bother, or just note the light tonnage (as calculated from the refit)?

Seems reasonable. Thanks for putting in the extra effort to get these old ships simmed.

Eurybiades Class was simmed in SS3, here is the existing sim:

RHN C-8 Eurybiades Class, Greek Light Cruiser laid down 1923 (Engine 1934)

Displacement:
4,510 t light; 4,670 t standard; 4,926 t normal; 5,131 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(430.00 ft / 430.00 ft) x 47.00 ft x (16.50 / 17.02 ft)
(131.06 m / 131.06 m) x 14.33 m x (5.03 / 5.19 m)

Armament:
8 - 5.00" / 127 mm 40.0 cal guns - 59.90lbs / 27.17kg shells, 150 per gun
Breech loading guns in turret on barbette mounts , 1934 Model
4 x 2-gun mounts on centreline ends, evenly spread
12 - 1.57" / 40.0 mm 45.0 cal guns - 1.97lbs / 0.89kg shells, 1,000 per gun
Breech loading guns in deck mounts , 1934 Model
6 x Twin mounts on sides, evenly spread
12 - 0.79" / 20.0 mm 45.0 cal guns - 0.25lbs / 0.11kg shells, 5,000 per gun
Machine guns in deck mounts , 1923 Model
6 x Twin mounts on sides, evenly spread
Weight of broadside 506 lbs / 506 kg
8 - 21.0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.00" / 102 mm 300.00 ft / 91.44 m 8.50 ft / 2.59 m
Ends: Unarmoured
Main Belt covers 107 % 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

- Armour deck: 2.50" / 64 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 51,392 shp / 38,338 Kw = 30.30 kts
Range 5,000nm at 12.00 kts
Bunker at max displacement = 461 tons

Complement:
293 - 382

Cost:
£1.185 million / $4.739 million

Distribution of weights at normal displacement:
Armament: 128 tons, 2.6 %
Armour: 1,119 tons, 22.7 %
- Belts: 423 tons, 8.6 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 63 tons, 1.3 %
- Armour Deck: 633 tons, 12.8 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,478 tons, 30.0 %
Hull, fittings & equipment: 1,827 tons, 37.1 %
Fuel, ammunition & stores: 416 tons, 8.4 %
Miscellaneous weights: 35 tons, 0.7 %
- Hull below water: 35 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
5,775 lbs / 2,619 Kg = 92.4 x 5.0 " / 127 mm shells or 1.0 torpedoes
Stability (Unstable if below 1.00): 1.21
Metacentric height 2.3 ft / 0.7 m
Roll period: 13.1 seconds
Steadiness - As gun platform (Average = 50 %): 56 %
- Recoil effect (Restricted arc if above 1.00): 0.28
Seaboat quality (Average = 1.00): 1.12

Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.517 / 0.522
Length to Beam Ratio: 9.15 : 1
'Natural speed' for length: 20.74 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 20.50 ft / 6.25 m, 19.50 ft / 5.94 m
- Forward deck: 30.00 %, 19.50 ft / 5.94 m, 18.50 ft / 5.64 m
- Aft deck: 35.00 %, 18.50 ft / 5.64 m, 17.00 ft / 5.18 m
- Quarter deck: 15.00 %, 17.00 ft / 5.18 m, 15.50 ft / 4.72 m
- Average freeboard: 18.33 ft / 5.59 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 107.0 %
- Above water (accommodation/working, high = better): 118.5 %
Waterplane Area: 13,677 Square feet or 1,271 Square metres
Displacement factor (Displacement / loading): 109 %
Structure weight / hull surface area: 75 lbs/sq ft or 366 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.34
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate

To redo it in SS2 cost 0.10" of deck armor and 0.12kts speed, but gained 385nm range (to keep light disp same w/o changing BC):

RHN C-8 Eurybiades Class, Greek Light Cruiser laid down 1923 (Engine 1934)

Displacement:
4,510 t light; 4,652 t standard; 4,926 t normal; 5,145 t full load

Dimensions: Length overall / water x beam x draught
430.00 ft / 430.00 ft x 47.00 ft x 16.50 ft (normal load)
131.06 m / 131.06 m x 14.33 m x 5.03 m

Armament:
8 - 5.00" / 127 mm guns (4x2 guns), 59.90lbs / 27.17kg shells, 1934 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
12 - 1.57" / 40.0 mm guns (6x2 guns), 1.97lbs / 0.89kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
12 - 0.79" / 20.0 mm guns (6x2 guns), 0.25lbs / 0.11kg shells, 1923 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 506 lbs / 229 kg
Shells per gun, main battery: 150
8 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.00" / 102 mm 300.00 ft / 91.44 m 8.50 ft / 2.59 m
Ends: Unarmoured
Main Belt covers 107 % 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

- Armour deck: 2.40" / 61 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 50,580 shp / 37,733 Kw = 30.18 kts
Range 5,385nm at 12.00 kts
Bunker at max displacement = 493 tons

Complement:
293 - 382

Cost:
£1.213 million / $4.850 million

Distribution of weights at normal displacement:
Armament: 66 tons, 1.3 %
Armour: 1,095 tons, 22.2 %
- Belts: 423 tons, 8.6 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 64 tons, 1.3 %
- Armour Deck: 607 tons, 12.3 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,455 tons, 29.5 %
Hull, fittings & equipment: 1,859 tons, 37.7 %
Fuel, ammunition & stores: 416 tons, 8.5 %
Miscellaneous weights: 35 tons, 0.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
5,727 lbs / 2,598 Kg = 91.6 x 5.0 " / 127 mm shells or 1.0 torpedoes
Stability (Unstable if below 1.00): 1.20
Metacentric height 2.2 ft / 0.7 m
Roll period: 13.2 seconds
Steadiness - As gun platform (Average = 50 %): 56 %
- Recoil effect (Restricted arc if above 1.00): 0.33
Seaboat quality (Average = 1.00): 1.12

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.517
Length to Beam Ratio: 9.15 : 1
'Natural speed' for length: 20.74 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 20.50 ft / 6.25 m
- Forecastle (20 %): 19.50 ft / 5.94 m
- Mid (50 %): 18.50 ft / 5.64 m
- Quarterdeck (15 %): 17.00 ft / 5.18 m
- Stern: 15.50 ft / 4.72 m
- Average freeboard: 18.33 ft / 5.59 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 107.2 %
- Above water (accommodation/working, high = better): 118.5 %
Waterplane Area: 13,677 Square feet or 1,271 Square metres
Displacement factor (Displacement / loading): 108 %
Structure weight / hull surface area: 76 lbs/sq ft or 372 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.91
- Longitudinal: 2.33
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate

Looks good. I approve.