I now comprehend why the IJN cancelled construction of the Kusumi.

Refit, or not refit, that is the question.

I have no idea so I will ask. Is possible to refit a light cruiser to make it a supply ship? or would it cost too much to be worthy?

Without knowledge of the details of the existing cruiser, or the characteristics desired in the supply ship, the answer to your question is not absolute. Can such a conversion be done? Yes. Would it cost too much to be worthwhile? Most likely.

If you going to convert an existing vessel to a naval supply ship it would be more cost effective to convert a merchant hull. In WW we presume that there are all sorts of merchantmen available that can be taken up from trade and perform auxiliary duties. For ideas, just scroll through the German encyclopedia, where I've done this extensively. Such a conversion can be between 15 and 25% of the tonnage of a purpose built vessel, depending on your armament choices.

Project 39-001, Lauranian Aircraft Carrier laid down 1939

Displacement: 19,900 t light; 20,500 t standard; 22,626 t normal; 24,327 t full load

Dimensions: Length overall / water x beam x draught

779.85 ft / 748.03 ft x 87.27 ft x 27.89 ft (normal load) [237.70 m / 228.00 m x 26.60 m x 8.50 m]

Armament:

16 - 3.54" / 90.0 mm guns (8x2 guns), 22.24lbs / 10.09kg shells, 1939 Model Anti-aircraft guns in deck mounts on side ends, evenly spread, all raised mounts - superfiring

32 - 1.46" / 37.0 mm guns (8x4 guns), 1.55lbs / 0.70kg shells, 1939 Model Anti-aircraft guns in deck mounts on side, evenly spread, 6 raised mounts

16 - 0.52" / 13.2 mm guns (8x2 guns), 0.07lbs / 0.03kg shells, 1939 Model Machine guns in deck mounts on side, evenly spread, all raised mounts

Weight of broadside 407 lbs / 184 kg

Shells per gun, main battery: 600

Armour:

Belts: Width (max) Length (avg) Height (avg)

Main: 1.97" / 50 mm 521.65 ft / 159.00 m 9.84 ft / 3.00 m

Ends: Unarmoured

Main Belt covers 107 % of normal length

Torpedo Bulkhead: 0.98" / 25 mm 521.65 ft / 159.00 m 26.25 ft / 8.00 m

Armour deck: 1.97" / 50 mm, Conning tower: 1.18" / 30 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 4 shafts, 137,893 shp / 102,868 Kw = 34.00 kts

Range 10,000nm at 16.00 kts

Bunker at max displacement = 3,827 tons

Complement: 922 - 1,199

Cost: £7.340 million / $29.359 million

Distribution of weights at normal displacement:

Armament: 51 tons, 0.2 %

Armour: 2,494 tons, 11.0 %

- Belts: 419 tons, 1.9 %

- Torpedo bulkhead: 499 tons, 2.2 %

- Armament: 0 tons, 0.0 %

- Armour Deck: 1,556 tons, 6.9 %

- Conning Tower: 20 tons, 0.1 %

Machinery: 3,731 tons, 16.5 %

Hull, fittings & equipment: 8,224 tons, 36.3 %

Fuel, ammunition & stores: 2,726 tons, 12.0 %

Miscellaneous weights: 5,400 tons, 23.9 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 37,379 lbs / 16,955 Kg = 1,680.5 x 3.5 " / 90 mm shells or 4.8 torpedoes

Stability (Unstable if below 1.00): 1.10

Metacentric height 4.9 ft / 1.5 m

Roll period: 16.6 seconds

Steadiness - As gun platform (Average = 50 %): 79 %

- Recoil effect (Restricted arc if above 1.00): 0.03

Seaboat quality (Average = 1.00): 1.89

Hull form characteristics:

Hull has raised forecastle and transom stern

Block coefficient: 0.435

Length to Beam Ratio: 8.57 : 1

'Natural speed' for length: 31.89 kts

Power going to wave formation at top speed: 53 %

Trim (Max stability = 0, Max steadiness = 100): 42

Bow angle (Positive = bow angles forward): 17.00 degrees

Stern overhang: 19.69 ft / 6.00 m

Freeboard (% = measuring location as a percentage of overall length):

- Stem: 39.70 ft / 12.10 m

- Forecastle (22 %): 39.70 ft / 12.10 m (29.53 ft / 9.00 m aft of break)

- Mid (88 %): 29.53 ft / 9.00 m

- Quarterdeck (12 %): 29.53 ft / 9.00 m

- Stern: 29.53 ft / 9.00 m

- Average freeboard: 31.77 ft / 9.68 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 106.9 %

- Above water (accommodation/working, high = better): 260.7 %

Waterplane Area: 42,730 Square feet or 3,970 Square metres

Displacement factor (Displacement / loading): 144 %

Structure weight / hull surface area: 116 lbs/sq ft or 568 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 0.92

- Longitudinal: 2.16

- Overall: 1.00

Hull space for machinery, storage, compartmentation is adequate

Room for accommodation and workspaces is excellent

Ship has slow, easy roll, a good, steady gun platform

Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Air group 64 aircraft - 4096 tons

Displacement: 19,900 t light; 20,500 t standard; 22,626 t normal; 24,327 t full load

Dimensions: Length overall / water x beam x draught

779.85 ft / 748.03 ft x 87.27 ft x 27.89 ft (normal load) [237.70 m / 228.00 m x 26.60 m x 8.50 m]

Armament:

16 - 3.54" / 90.0 mm guns (8x2 guns), 22.24lbs / 10.09kg shells, 1939 Model Anti-aircraft guns in deck mounts on side ends, evenly spread, all raised mounts - superfiring

32 - 1.46" / 37.0 mm guns (8x4 guns), 1.55lbs / 0.70kg shells, 1939 Model Anti-aircraft guns in deck mounts on side, evenly spread, 6 raised mounts

16 - 0.52" / 13.2 mm guns (8x2 guns), 0.07lbs / 0.03kg shells, 1939 Model Machine guns in deck mounts on side, evenly spread, all raised mounts

Weight of broadside 407 lbs / 184 kg

Shells per gun, main battery: 600

Armour:

Belts: Width (max) Length (avg) Height (avg)

Main: 1.97" / 50 mm 521.65 ft / 159.00 m 9.84 ft / 3.00 m

Ends: Unarmoured

Main Belt covers 107 % of normal length

Torpedo Bulkhead: 0.98" / 25 mm 521.65 ft / 159.00 m 26.25 ft / 8.00 m

Armour deck: 1.97" / 50 mm, Conning tower: 1.18" / 30 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 4 shafts, 137,893 shp / 102,868 Kw = 34.00 kts

Range 10,000nm at 16.00 kts

Bunker at max displacement = 3,827 tons

Complement: 922 - 1,199

Cost: £7.340 million / $29.359 million

Distribution of weights at normal displacement:

Armament: 51 tons, 0.2 %

Armour: 2,494 tons, 11.0 %

- Belts: 419 tons, 1.9 %

- Torpedo bulkhead: 499 tons, 2.2 %

- Armament: 0 tons, 0.0 %

- Armour Deck: 1,556 tons, 6.9 %

- Conning Tower: 20 tons, 0.1 %

Machinery: 3,731 tons, 16.5 %

Hull, fittings & equipment: 8,224 tons, 36.3 %

Fuel, ammunition & stores: 2,726 tons, 12.0 %

Miscellaneous weights: 5,400 tons, 23.9 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 37,379 lbs / 16,955 Kg = 1,680.5 x 3.5 " / 90 mm shells or 4.8 torpedoes

Stability (Unstable if below 1.00): 1.10

Metacentric height 4.9 ft / 1.5 m

Roll period: 16.6 seconds

Steadiness - As gun platform (Average = 50 %): 79 %

- Recoil effect (Restricted arc if above 1.00): 0.03

Seaboat quality (Average = 1.00): 1.89

Hull form characteristics:

Hull has raised forecastle and transom stern

Block coefficient: 0.435

Length to Beam Ratio: 8.57 : 1

'Natural speed' for length: 31.89 kts

Power going to wave formation at top speed: 53 %

Trim (Max stability = 0, Max steadiness = 100): 42

Bow angle (Positive = bow angles forward): 17.00 degrees

Stern overhang: 19.69 ft / 6.00 m

Freeboard (% = measuring location as a percentage of overall length):

- Stem: 39.70 ft / 12.10 m

- Forecastle (22 %): 39.70 ft / 12.10 m (29.53 ft / 9.00 m aft of break)

- Mid (88 %): 29.53 ft / 9.00 m

- Quarterdeck (12 %): 29.53 ft / 9.00 m

- Stern: 29.53 ft / 9.00 m

- Average freeboard: 31.77 ft / 9.68 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 106.9 %

- Above water (accommodation/working, high = better): 260.7 %

Waterplane Area: 42,730 Square feet or 3,970 Square metres

Displacement factor (Displacement / loading): 144 %

Structure weight / hull surface area: 116 lbs/sq ft or 568 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 0.92

- Longitudinal: 2.16

- Overall: 1.00

Hull space for machinery, storage, compartmentation is adequate

Room for accommodation and workspaces is excellent

Ship has slow, easy roll, a good, steady gun platform

Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Air group 64 aircraft - 4096 tons

I remember there was a proposal once for running costs to be incorporated into reports and taken from factory production, which was probably less than ideal for capturing it accurately. Needless to say the proposal died but for a while a few of use tried to keep tabs on manpower but that faded away.

A few of us tried to keep tabs on manpower but that faded away.

I still keep tabs on that, actually, although I don't make much effort to track its growth (and it's almost always growth, never reduction) over time.

-- Russia: 209,003 men

-- France: 106,730 men

-- Chile: 38,113 men

## Quoted

I like that carrier design overall, although I'm somewhat worried about the thickness of the deck armour. It seems like just enough armour to fuse an AP bomb, and not enough to stop it...

Laurania is happy to trade offensive punch for defensive armor.

As for manpower, I too still kept track of it, at least for the Kriegsmarine. 160,257 officers and men in peacetime, 207,328 officers and men on war establishment - not including naval air group, naval landing troops, naval security troops, and shore establishments. Costly enough, but that is why Germany still has conscription.

Project 40-002, Lauranian Light Cruiser laid down 1940

Displacement: 8,351 t light; 8,714 t standard; 9,542 t normal; 10,205 t full load

Dimensions: Length overall / water x beam x draught

582.61 ft / 570.87 ft x 59.06 ft x 18.04 ft (normal load) [177.58 m / 174.00 m x 18.00 m x 5.50 m]

Armament:

9 - 5.98" / 152 mm guns (3x3 guns), 107.15lbs / 48.60kg shells, 1940 Model Breech loading guns in turrets (on barbettes) on centerline ends, majority forward, 1 raised mount - superfiring

8 - 3.54" / 90.0 mm guns (4x2 guns), 22.24lbs / 10.09kg shells, 1940 Model Anti-aircraft guns in deck mounts with hoists on side, evenly spread

12 - 1.46" / 37.0 mm guns (6x2 guns), 1.55lbs / 0.70kg shells, 1940 Model Anti-aircraft guns in deck mounts on side, evenly spread, 2 raised mounts

12 - 0.98" / 25.0 mm guns (6x2 guns), 0.48lbs / 0.22kg shells, 1940 Model Anti-aircraft guns in deck mounts on side, evenly spread, all raised mounts

Weight of broadside 1,167 lbs / 529 kg

Shells per gun, main battery: 250

6 - 21.7" / 550 mm above water torpedoes

Armor:

Belts: Width (max) Length (avg) Height (avg)

Main: 3.15" / 80 mm 360.89 ft / 110.00 m 9.84 ft / 3.00 m

Ends: Unarmored

Main Belt covers 97 % of normal length

Gun armor: Face (max) Other gunhouse (avg) Barbette/hoist (max)

Main: 3.15" / 80 mm 2.36" / 60 mm 3.94" / 100 mm

2nd: 0.98" / 25 mm 0.59" / 15 mm 0.98" / 25 mm

3rd: 0.39" / 10 mm - -

Armor deck: 1.57" / 40 mm, Conning tower: 3.15" / 80 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 2 shafts, 84,125 shp / 62,758 Kw = 33.00 kts

Range 6,500nm at 16.00 kts

Bunker at max displacement = 1,491 tons

Complement: 482 - 627

Cost: £4.378 million / $17.513 million

Distribution of weights at normal displacement:

Armament: 146 tons, 1.5 %

Armor: 1,534 tons, 16.1 %

- Belts: 470 tons, 4.9 %

- Torpedo bulkhead: 0 tons, 0.0 %

- Armament: 320 tons, 3.4 %

- Armor Deck: 713 tons, 7.5 %

- Conning Tower: 31 tons, 0.3 %

Machinery: 2,249 tons, 23.6 %

Hull, fittings & equipment: 4,222 tons, 44.2 %

Fuel, ammunition & stores: 1,191 tons, 12.5 %

Miscellaneous weights: 200 tons, 2.1 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 16,274 lbs / 7,382 Kg = 151.9 x 6.0 " / 152 mm shells or 1.8 torpedoes

Stability (Unstable if below 1.00): 1.15

Metacentric height 3.0 ft / 0.9 m

Roll period: 14.4 seconds

Steadiness - As gun platform (Average = 50 %): 61 %

- Recoil effect (Restricted arc if above 1.00): 0.45

Seaboat quality (Average = 1.00): 1.35

Hull form characteristics:

Hull has rise forward of midbreak and transom stern

Block coefficient: 0.549

Length to Beam Ratio: 9.67: 1

'Natural speed' for length: 27.19 kts

Power going to wave formation at top speed: 60 %

Trim (Max stability = 0, Max steadiness = 100): 45

Bow angle (Positive = bow angles forward): 16.00 degrees

Stern overhang: 3.28 ft / 1.00 m

Freeboard (% = measuring location as a percentage of overall length):

- Stem: 29.53 ft / 9.00 m

- Forecastle (10 %): 28.54 ft / 8.70 m

- Mid (50 %): 26.90 ft / 8.20 m (20.34 ft / 6.20 m aft of break)

- Quarterdeck (40 %): 20.34 ft / 6.20 m

- Stern: 20.34 ft / 6.20 m

- Average freeboard: 24.15 ft / 7.36 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 91.9 %

- Above water (accommodation/working, high = better): 220.7 %

Waterplane Area: 24,471 Square feet or 2,273 Square meters

Displacement factor (Displacement / loading): 129 %

Structure weight / hull surface area: 100 lbs/sq ft or 490 Kg/sq meter

Hull strength (Relative):

- Cross-sectional: 0.91

- Longitudinal: 2.37

- Overall: 1.00

Hull space for machinery, storage, compartmentation is adequate

Room for accommodation and workspaces is excellent

Good seaboat, rides out heavy weather easily

Displacement: 8,351 t light; 8,714 t standard; 9,542 t normal; 10,205 t full load

Dimensions: Length overall / water x beam x draught

582.61 ft / 570.87 ft x 59.06 ft x 18.04 ft (normal load) [177.58 m / 174.00 m x 18.00 m x 5.50 m]

Armament:

9 - 5.98" / 152 mm guns (3x3 guns), 107.15lbs / 48.60kg shells, 1940 Model Breech loading guns in turrets (on barbettes) on centerline ends, majority forward, 1 raised mount - superfiring

8 - 3.54" / 90.0 mm guns (4x2 guns), 22.24lbs / 10.09kg shells, 1940 Model Anti-aircraft guns in deck mounts with hoists on side, evenly spread

12 - 1.46" / 37.0 mm guns (6x2 guns), 1.55lbs / 0.70kg shells, 1940 Model Anti-aircraft guns in deck mounts on side, evenly spread, 2 raised mounts

12 - 0.98" / 25.0 mm guns (6x2 guns), 0.48lbs / 0.22kg shells, 1940 Model Anti-aircraft guns in deck mounts on side, evenly spread, all raised mounts

Weight of broadside 1,167 lbs / 529 kg

Shells per gun, main battery: 250

6 - 21.7" / 550 mm above water torpedoes

Armor:

Belts: Width (max) Length (avg) Height (avg)

Main: 3.15" / 80 mm 360.89 ft / 110.00 m 9.84 ft / 3.00 m

Ends: Unarmored

Main Belt covers 97 % of normal length

Gun armor: Face (max) Other gunhouse (avg) Barbette/hoist (max)

Main: 3.15" / 80 mm 2.36" / 60 mm 3.94" / 100 mm

2nd: 0.98" / 25 mm 0.59" / 15 mm 0.98" / 25 mm

3rd: 0.39" / 10 mm - -

Armor deck: 1.57" / 40 mm, Conning tower: 3.15" / 80 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 2 shafts, 84,125 shp / 62,758 Kw = 33.00 kts

Range 6,500nm at 16.00 kts

Bunker at max displacement = 1,491 tons

Complement: 482 - 627

Cost: £4.378 million / $17.513 million

Distribution of weights at normal displacement:

Armament: 146 tons, 1.5 %

Armor: 1,534 tons, 16.1 %

- Belts: 470 tons, 4.9 %

- Torpedo bulkhead: 0 tons, 0.0 %

- Armament: 320 tons, 3.4 %

- Armor Deck: 713 tons, 7.5 %

- Conning Tower: 31 tons, 0.3 %

Machinery: 2,249 tons, 23.6 %

Hull, fittings & equipment: 4,222 tons, 44.2 %

Fuel, ammunition & stores: 1,191 tons, 12.5 %

Miscellaneous weights: 200 tons, 2.1 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 16,274 lbs / 7,382 Kg = 151.9 x 6.0 " / 152 mm shells or 1.8 torpedoes

Stability (Unstable if below 1.00): 1.15

Metacentric height 3.0 ft / 0.9 m

Roll period: 14.4 seconds

Steadiness - As gun platform (Average = 50 %): 61 %

- Recoil effect (Restricted arc if above 1.00): 0.45

Seaboat quality (Average = 1.00): 1.35

Hull form characteristics:

Hull has rise forward of midbreak and transom stern

Block coefficient: 0.549

Length to Beam Ratio: 9.67: 1

'Natural speed' for length: 27.19 kts

Power going to wave formation at top speed: 60 %

Trim (Max stability = 0, Max steadiness = 100): 45

Bow angle (Positive = bow angles forward): 16.00 degrees

Stern overhang: 3.28 ft / 1.00 m

Freeboard (% = measuring location as a percentage of overall length):

- Stem: 29.53 ft / 9.00 m

- Forecastle (10 %): 28.54 ft / 8.70 m

- Mid (50 %): 26.90 ft / 8.20 m (20.34 ft / 6.20 m aft of break)

- Quarterdeck (40 %): 20.34 ft / 6.20 m

- Stern: 20.34 ft / 6.20 m

- Average freeboard: 24.15 ft / 7.36 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 91.9 %

- Above water (accommodation/working, high = better): 220.7 %

Waterplane Area: 24,471 Square feet or 2,273 Square meters

Displacement factor (Displacement / loading): 129 %

Structure weight / hull surface area: 100 lbs/sq ft or 490 Kg/sq meter

Hull strength (Relative):

- Cross-sectional: 0.91

- Longitudinal: 2.37

- Overall: 1.00

Hull space for machinery, storage, compartmentation is adequate

Room for accommodation and workspaces is excellent

Good seaboat, rides out heavy weather easily

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