WesWorld

Rebuilt of the old British Cruisers into AA. Thanks Brock for the SIM. One will be reworked in Persia and the other in India.

Babr, Persian AA Cruiser laid down 1915 (Engine 1937)

Babr, laid down 1915, rebuilt 1937
Shir, laid down 1915, rebuilt 1937

Displacement:
3,892 t light; 4,047 t standard; 4,657 t normal; 5,145 t full load

Dimensions: Length overall / water x beam x draught
420.00 ft / 420.00 ft x 42.00 ft x 16.50 ft (normal load)
128.02 m / 128.02 m x 12.80 m x 5.03 m

Armament:
6 - 5.12" / 130 mm guns (3x2 guns), 67.03lbs / 30.41kg shells, 1937 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward, 1 raised mount - superfiring
8 - 1.57" / 40.0 mm guns (4x2 guns), 1.95lbs / 0.89kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, all amidships
4 - 1.57" / 40.0 mm guns (1x4 guns), 1.95lbs / 0.89kg shells, 1937 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1937 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 428 lbs / 194 kg
Shells per gun, main battery: 250
16 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.00" / 76 mm 335.00 ft / 102.11 m 8.00 ft / 2.44 m
Ends: 2.50" / 64 mm 85.00 ft / 25.91 m 8.00 ft / 2.44 m
Main Belt covers 123 % of normal length
Main belt does not fully cover magazines and engineering spaces

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm 1.00" / 25 mm 2.00" / 51 mm
2nd: 1.00" / 25 mm - -
3rd: 0.50" / 13 mm - -
4th: 0.50" / 13 mm - -

- Armour deck: 0.85" / 22 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 63,735 shp / 47,546 Kw = 32.00 kts
Range 8,000nm at 15.00 kts
Bunker at max displacement = 1,099 tons

Complement:
281 - 366

Cost:
£0.623 million / $2.493 million

Distribution of weights at normal displacement:
Armament: 53 tons, 1.1 %
Armour: 616 tons, 13.2 %
- Belts: 388 tons, 8.3 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 32 tons, 0.7 %
- Armour Deck: 195 tons, 4.2 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,766 tons, 37.9 %
Hull, fittings & equipment: 1,406 tons, 30.2 %
Fuel, ammunition & stores: 765 tons, 16.4 %
Miscellaneous weights: 50 tons, 1.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,561 lbs / 1,162 Kg = 38.2 x 5.1 " / 130 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.16
Metacentric height 1.8 ft / 0.5 m
Roll period: 13.1 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.27
Seaboat quality (Average = 1.00): 0.84

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.560
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 20.49 kts
Power going to wave formation at top speed: 66 %
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: 23.00 ft / 7.01 m
- Forecastle (35 %): 22.00 ft / 6.71 m (13.50 ft / 4.11 m aft of break)
- Mid (50 %): 13.50 ft / 4.11 m
- Quarterdeck (15 %): 13.50 ft / 4.11 m
- Stern: 13.50 ft / 4.11 m
- Average freeboard: 16.62 ft / 5.06 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 133.6 %
- Above water (accommodation/working, high = better): 42.6 %
Waterplane Area: 12,427 Square feet or 1,154 Square metres
Displacement factor (Displacement / loading): 101 %
Structure weight / hull surface area: 62 lbs/sq ft or 304 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.83
- Longitudinal: 1.74
- Overall: 0.90
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is extremely poor
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Persia will buy the license from Germany in 1938. Thanks Hrolf for SIM.

Type I, Persian U-boat laid down 1938

I-5 - completed 1938
I-6 - completed 1938
I-7 - completed 1938
I-8 - completed 1938
I-9 - completed 1938

Displacement:
414 t light; 424 t standard; 458 t normal; 485 t full load

Dimensions: Length overall / water x beam x draught
165.68 ft / 164.04 ft x 19.69 ft x 11.81 ft (normal load)
50.50 m / 50.00 m x 6.00 m x 3.60 m

Armament:
1 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1938 Model
Anti-aircraft gun in deck mount
on centreline aft
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1938 Model
Machine guns in deck mounts
on centreline, all amidships
Weight of broadside 2 lbs / 1 kg
Shells per gun, main battery: 450
4 - 21.0" / 533.4 mm submerged torpedo tubes

Armour:

- Conning tower: 0.79" / 20 mm

Machinery:
Diesel Internal combustion generators plus batteries,
Electric motors, 2 shafts, 1,019 shp / 760 Kw = 15.00 kts
Range 2,500nm at 12.00 kts
Bunker at max displacement = 61 tons

Complement:
49 - 64

Cost:
£0.080 million / $0.318 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.1 %
Armour: 1 tons, 0.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 1 tons, 0.2 %
Machinery: 31 tons, 6.7 %
Hull, fittings & equipment: 282 tons, 61.6 %
Fuel, ammunition & stores: 44 tons, 9.5 %
Miscellaneous weights: 100 tons, 21.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
239 lbs / 108 Kg = 154.6 x 1.5 " / 37 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.07
Metacentric height 0.5 ft / 0.2 m
Roll period: 11.8 seconds
Steadiness - As gun platform (Average = 50 %): 0 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 0.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.420
Length to Beam Ratio: 8.33 : 1
'Natural speed' for length: 12.81 kts
Power going to wave formation at top speed: 47 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 0.00 ft / 0.00 m
- Forecastle (20 %): 0.00 ft / 0.00 m
- Mid (50 %): 0.00 ft / 0.00 m
- Quarterdeck (15 %): 0.00 ft / 0.00 m
- Stern: 0.00 ft / 0.00 m
- Average freeboard: 0.00 ft / 0.00 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 98.9 %
- Above water (accommodation/working, high = better): 0.0 %
Waterplane Area: 2,013 Square feet or 187 Square metres
Displacement factor (Displacement / loading): 278 %
Structure weight / hull surface area: 95 lbs/sq ft or 463 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 3.64
- Longitudinal: 2.71
- Overall: 2.92
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is extremely poor
Ship has quick, lively roll, not a steady gun platform
Caution: Lacks seaworthiness - very limited seakeeping ability

All tubes are forward.

12 tons of the miscellaneous tonnage are for 8 reload torpedoes.

Will start construction in India in Q4 1938. Thanks Brock for the SIM.

Palang, Persindian Light Cruiser laid down 1938

Displacement:
7,040 t light; 7,333 t standard; 8,080 t normal; 8,678 t full load

Dimensions: Length overall / water x beam x draught
567.30 ft / 557.74 ft x 55.77 ft x 19.36 ft (normal load)
172.91 m / 170.00 m x 17.00 m x 5.90 m

Armament:
9 - 5.91" / 150 mm guns (3x3 guns), 102.98lbs / 46.71kg shells, 1939 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
10 - 4.13" / 105 mm guns (5x2 guns), 35.32lbs / 16.02kg shells, 1939 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships, 1 raised mount - superfiring
8 - 1.38" / 35.0 mm guns (4x2 guns), 1.31lbs / 0.59kg shells, 1939 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
8 - 0.59" / 15.0 mm guns (4x2 guns), 0.10lbs / 0.05kg shells, 1939 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 1,291 lbs / 586 kg
Shells per gun, main battery: 170
6 - 19.7" / 500 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.94" / 100 mm 362.53 ft / 110.50 m 9.84 ft / 3.00 m
Ends: Unarmoured
Main Belt covers 100 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.94" / 100 mm 2.76" / 70 mm 3.94" / 100 mm
2nd: 1.18" / 30 mm 0.79" / 20 mm 0.79" / 20 mm
3rd: 0.39" / 10 mm - -
4th: 0.39" / 10 mm - -

- Armour deck: 1.97" / 50 mm, Conning tower: 3.94" / 100 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 68,736 shp / 51,277 Kw = 32.50 kts
Range 12,000nm at 12.00 kts
Bunker at max displacement = 1,345 tons

Complement:
425 - 553

Cost:
£3.737 million / $14.949 million

Distribution of weights at normal displacement:
Armament: 161 tons, 2.0 %
Armour: 1,669 tons, 20.7 %
- Belts: 584 tons, 7.2 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 288 tons, 3.6 %
- Armour Deck: 763 tons, 9.4 %
- Conning Tower: 34 tons, 0.4 %
Machinery: 1,860 tons, 23.0 %
Hull, fittings & equipment: 3,280 tons, 40.6 %
Fuel, ammunition & stores: 1,040 tons, 12.9 %
Miscellaneous weights: 70 tons, 0.9 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
11,004 lbs / 4,991 Kg = 106.9 x 5.9 " / 150 mm shells or 1.6 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 2.7 ft / 0.8 m
Roll period: 14.3 seconds
Steadiness - As gun platform (Average = 50 %): 55 %
- Recoil effect (Restricted arc if above 1.00): 0.42
Seaboat quality (Average = 1.00): 1.05

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.470
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 27.05 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 52
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26.25 ft / 8.00 m
- Forecastle (20 %): 20.83 ft / 6.35 m
- Mid (50 %): 17.22 ft / 5.25 m
- Quarterdeck (15 %): 17.22 ft / 5.25 m
- Stern: 17.22 ft / 5.25 m
- Average freeboard: 18.92 ft / 5.77 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 91.8 %
- Above water (accommodation/working, high = better): 149.9 %
Waterplane Area: 20,965 Square feet or 1,948 Square metres
Displacement factor (Displacement / loading): 120 %
Structure weight / hull surface area: 97 lbs/sq ft or 476 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.48
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

You know, I came back to look at this and I realized we might need to change Palang's torpedoes to 21" or 24" to match the rest of the Persian fleet. IIRC the 500mm torpedo is an Indian weapon, not a Persian weapon, and most existing Persian torpedoes are 18", 21", or 24".

Quoted

Originally posted by Brockpaine
You know, I came back to look at this and I realized we might need to change Palang's torpedoes to 21" or 24" to match the rest of the Persian fleet. IIRC the 500mm torpedo is an Indian weapon, not a Persian weapon, and most existing Persian torpedoes are 18", 21", or 24".

Who said it will be operating with the Persian Navy in case of an emergency?

In that case my point still stands, just with a different solution than before. I'd suggest arming the Uboats and the two Babrs with the 50cm torpedoes rather than with 21".