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Due to the accelerated pace of the sim I didn't get around to writing an news post reguarding Siboney's planned rebuild into a training carrier.

Here is the design, cost is 11 months (7 quarters) and 6,443 tons of materials.

Siboney, Atlantean training carrier Carrier laid down 1918

Displacement:

12,613 t light; 12,886 t standard; 13,653 t normal; 14,267 t full load

Dimensions: Length overall / water x beam x draught

547.45 ft / 545.00 ft x 64.00 ft x 20.00 ft (normal load)

166.86 m / 166.12 m x 19.51 m x 6.10 m

Armour:

- Conning tower: 3.00" / 76 mm

Machinery:

Oil fired boilers, steam turbines,

Geared drive, 2 shafts, 18,514 shp / 13,811 Kw = 20.00 kts

Range 6,500nm at 12.00 kts

Bunker at max displacement = 1,381 tons

Complement:

630 - 820

Cost:

£1.070 million / $4.280 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0 %

Armour: 37 tons, 0.3 %

- Belts: 0 tons, 0.0 %

- Torpedo bulkhead: 0 tons, 0.0 %

- Armament: 0 tons, 0.0 %

- Armour Deck: 0 tons, 0.0 %

- Conning Tower: 37 tons, 0.3 %

Machinery: 668 tons, 4.9 %

Hull, fittings & equipment: 11,208 tons, 82.1 %

Fuel, ammunition & stores: 1,040 tons, 7.6 %

Miscellaneous weights: 700 tons, 5.1 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

75,116 lbs / 34,072 Kg = 695.5 x 6 " / 152 mm shells or 10.4 torpedoes

Stability (Unstable if below 1.00): 1.04

Metacentric height 2.8 ft / 0.8 m

Roll period: 16.1 seconds

Steadiness - As gun platform (Average = 50 %): 70 %

- Recoil effect (Restricted arc if above 1.00): 0.00

Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:

Hull has a flush deck

Block coefficient: 0.685

Length to Beam Ratio: 8.52 : 1

'Natural speed' for length: 23.35 kts

Power going to wave formation at top speed: 40 %

Trim (Max stability = 0, Max steadiness = 100): 35

Bow angle (Positive = bow angles forward): 5.00 degrees

Stern overhang: 0.00 ft / 0.00 m

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

- Stem: 28.00 ft / 8.53 m

- Forecastle (15 %): 26.00 ft / 7.92 m

- Mid (50 %): 26.00 ft / 7.92 m

- Quarterdeck (15 %): 26.00 ft / 7.92 m

- Stern: 28.00 ft / 8.53 m

- Average freeboard: 26.27 ft / 8.01 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 23.2 %

- Above water (accommodation/working, high = better): 216.8 %

Waterplane Area: 27,584 Square feet or 2,563 Square metres

Displacement factor (Displacement / loading): 659 %

Structure weight / hull surface area: 238 lbs/sq ft or 1,164 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 2.60

- Longitudinal: 6.44

- Overall: 2.84

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

550 tons for new structures (island, mock weapons platforms and 1 catapult)

50 tons for aircraft workshop

60 tons for trainee accomidations

30 tons for training personell accomodations

10 tons for aviation fuel

Here is the design, cost is 11 months (7 quarters) and 6,443 tons of materials.

Siboney, Atlantean training carrier Carrier laid down 1918

Displacement:

12,613 t light; 12,886 t standard; 13,653 t normal; 14,267 t full load

Dimensions: Length overall / water x beam x draught

547.45 ft / 545.00 ft x 64.00 ft x 20.00 ft (normal load)

166.86 m / 166.12 m x 19.51 m x 6.10 m

Armour:

- Conning tower: 3.00" / 76 mm

Machinery:

Oil fired boilers, steam turbines,

Geared drive, 2 shafts, 18,514 shp / 13,811 Kw = 20.00 kts

Range 6,500nm at 12.00 kts

Bunker at max displacement = 1,381 tons

Complement:

630 - 820

Cost:

£1.070 million / $4.280 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0 %

Armour: 37 tons, 0.3 %

- Belts: 0 tons, 0.0 %

- Torpedo bulkhead: 0 tons, 0.0 %

- Armament: 0 tons, 0.0 %

- Armour Deck: 0 tons, 0.0 %

- Conning Tower: 37 tons, 0.3 %

Machinery: 668 tons, 4.9 %

Hull, fittings & equipment: 11,208 tons, 82.1 %

Fuel, ammunition & stores: 1,040 tons, 7.6 %

Miscellaneous weights: 700 tons, 5.1 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

75,116 lbs / 34,072 Kg = 695.5 x 6 " / 152 mm shells or 10.4 torpedoes

Stability (Unstable if below 1.00): 1.04

Metacentric height 2.8 ft / 0.8 m

Roll period: 16.1 seconds

Steadiness - As gun platform (Average = 50 %): 70 %

- Recoil effect (Restricted arc if above 1.00): 0.00

Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:

Hull has a flush deck

Block coefficient: 0.685

Length to Beam Ratio: 8.52 : 1

'Natural speed' for length: 23.35 kts

Power going to wave formation at top speed: 40 %

Trim (Max stability = 0, Max steadiness = 100): 35

Bow angle (Positive = bow angles forward): 5.00 degrees

Stern overhang: 0.00 ft / 0.00 m

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

- Stem: 28.00 ft / 8.53 m

- Forecastle (15 %): 26.00 ft / 7.92 m

- Mid (50 %): 26.00 ft / 7.92 m

- Quarterdeck (15 %): 26.00 ft / 7.92 m

- Stern: 28.00 ft / 8.53 m

- Average freeboard: 26.27 ft / 8.01 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 23.2 %

- Above water (accommodation/working, high = better): 216.8 %

Waterplane Area: 27,584 Square feet or 2,563 Square metres

Displacement factor (Displacement / loading): 659 %

Structure weight / hull surface area: 238 lbs/sq ft or 1,164 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 2.60

- Longitudinal: 6.44

- Overall: 2.84

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

550 tons for new structures (island, mock weapons platforms and 1 catapult)

50 tons for aircraft workshop

60 tons for trainee accomidations

30 tons for training personell accomodations

10 tons for aviation fuel

-Changes to bunkerage (type or quantity): P

-Replacement of superstructure: P

-Changes to internal belt armor: P (upper), D (ends, main)

-Changes to deck armor: P

-Replacement of secondary turrets with new secondary turrets: P

-Changes to secondary (or tertiary) barbettes (addition, change of caliber, change to armor or capacity, replacement with bunkerage): P

-Replacement of secondary barbettes with powerplant machinery: D

-Removal of main gun turret (barbette plated over and possibly covered): P

-Change to powerplant (type and output): D

-Change to bow form: D

-Change to trim of ship: D

-Change to torpedo bulkheads: D

That would mean 50% of her build time from scratch and 50% of her materials due to her orriginal speed being reduced from 21.5 knots to 20 knots and her superstructure being radically altered.

Most of her orriginal hangar is converted to classrooms and accomidations, an Island, fake weapons sponsons and funnel have also been added in order to simulate the other CV's in service as much as possible.

The new building rules are being used here....

## Quoted

-Change to powerplant (type and output): D

This falls under the level 4 build rules, thus 50%.

If it was .5 knots I could argue that due to her age shes barely able to maintain the required 20 knots but shes a full 1.5 knots faster than the limits.

I don't think fouling of the ships bottom or machinery wear would drop her speed by that much but.....

I'm also able to build another training carrier under the revised CT rules which could turn out to be a slightly smaller, unarmored Alioth design.

She's 12 years old so I suppose the level of wear on her machinery is not too high.

I'm getting the sence you think she's valuable enough to have her machinery replaced, I might examine the rebuild plans again.

In the particular case of

## Quoted

Level 3: Major Refits (cost = 25%)

-Changes to catapults and/or above-decks seaplane hangers: P

-Changes to deck mount or turret armor: P

-Changes to conning tower armor: P

-Changes to external armor belts: P (upper), D (ends, main)

-Changes to underwater torpedo tubes: D

-Changes to sonar: D

-Removal of secondary (or tertiary) gun turrets (barbettes plated over and possibly covered): P

-Refurbishment of internal fittings for life-extension purposes: P

3,222 tons needed and 6 months to complete. Does this sound more reasonable?

*Saturday, July 20th 2019, 12:47pm*- Go to the top of the page

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