WesWorld

Apparently I haven't posted anything for Persia thus far.

So this is the new sloop design. They'll be used primarily for protecting tankers, either individually or as the flagship of small escort groups.

I suspect the Persians will find the design over-gunned with six main guns, but they can deal with that later.

Persia's looking at one per year for a few years.

Enter ship name, Enter country Enter ship type laid down 1942

Displacement:
1,200 t light; 1,312 t standard; 1,499 t normal; 1,649 t full load

Dimensions: Length overall / water x beam x draught
336.59 ft / 325.79 ft x 36.09 ft x 11.15 ft (normal load)
102.59 m / 99.30 m x 11.00 m x 3.40 m

Armament:
6 - 5.12" / 130 mm guns (3x2 guns), 67.03lbs / 30.40kg shells, 1942 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward, 1 raised mount - superfiring
8 - 1.38" / 35.0 mm guns (4x2 guns), 1.31lbs / 0.59kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
8 - 0.59" / 15.0 mm guns (2x4 guns), 0.10lbs / 0.05kg shells, 1942 Model
Breech loading guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 413 lbs / 188 kg
Shells per gun, main battery: 350

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm
2nd: 0.79" / 20 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 10,000 shp / 7,460 Kw = 23.90 kts
Range 5,000nm at 15.00 kts (Bunkerage = 337 tons)

Complement:
119 - 156

Cost:
£0.776 million / $3.105 million

Distribution of weights at normal displacement:
Armament: 52 tons, 3.4 %
Armour: 29 tons, 2.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 29 tons, 2.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 261 tons, 17.4 %
Hull, fittings & equipment: 753 tons, 50.3 %
Fuel, ammunition & stores: 299 tons, 20.0 %
Miscellaneous weights: 104 tons, 6.9 %
-10 t: Radar
-10 t: Sonar
-20 t: DCT + Rails + 60 depth charges
-25 t: Command facilities
-39 t: Weight reserve

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,353 lbs / 1,067 Kg = 35.1 x 5.1 " / 130 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 1.4 ft / 0.4 m
Roll period: 11.7 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.76
Seaboat quality (Average = 1.00): 1.40

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.440
Length to Beam Ratio: 9.93 : 1
'Natural speed' for length: 18.05 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 36
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 20.67 ft / 6.30 m
- Forecastle (20 %): 16.73 ft / 5.10 m
- Mid (50 %): 16.73 ft / 5.10 m (8.86 ft / 2.70 m aft of break)
- Quarterdeck (15 %): 8.86 ft / 2.70 m
- Stern: 8.86 ft / 2.70 m
- Average freeboard: 13.11 ft / 4.00 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 94.4 %
- Above water (accommodation/working, high = better): 148.8 %
Waterplane Area: 7,440 Square feet or 691 Square metres
Displacement factor (Displacement / loading): 140 %
Structure weight / hull surface area: 61 lbs/sq ft or 298 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 excellent
Good seaboat, rides out heavy weather easily

And this is the new destroyer design.

Seakeeping isn't great, but you know by now my assumptions about destroyer seakeeping values.

There's a lot of miscellaneous weight, to be sure - it provides the Persians with room to tinker with this basic ship for a long time if they can't afford replacements.

One per year, probably for a batch of two or three before a new design replaces it.

Enter ship name, Enter country Enter ship type laid down 1942

Displacement:
1,782 t light; 1,885 t standard; 2,144 t normal; 2,352 t full load

Dimensions: Length overall / water x beam x draught
385.32 ft / 377.30 ft x 36.09 ft x 13.12 ft (normal load)
117.45 m / 115.00 m x 11.00 m x 4.00 m

Armament:
6 - 5.12" / 130 mm guns (3x2 guns), 67.03lbs / 30.41kg shells, 1942 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, 1942 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1942 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 420 lbs / 190 kg
Shells per gun, main battery: 250
8 - 24.0" / 610 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.39" / 10 mm 0.98" / 25 mm
2nd: 0.39" / 10 mm - -
3rd: 0.39" / 10 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 44,000 shp / 32,824 Kw = 34.55 kts
Range 6,000nm at 15.00 kts (Bunkerage = 467 tons)

Complement:
156 - 204

Cost:
£1.544 million / $6.176 million

Distribution of weights at normal displacement:
Armament: 52 tons, 2.4 %
Armour: 14 tons, 0.7 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 14 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 973 tons, 45.4 %
Hull, fittings & equipment: 603 tons, 28.1 %
Fuel, ammunition & stores: 362 tons, 16.9 %
Miscellaneous weights: 140 tons, 6.5 %
-10 t: Radar
-10 t: Sonar
-20 t: 60 DC plus throwers and rails
-30 t: Rails and 60 mines
-70 t: Weight reserve

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
555 lbs / 252 Kg = 8.3 x 5.1 " / 130 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.18
Metacentric height 1.5 ft / 0.4 m
Roll period: 12.5 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.55
Seaboat quality (Average = 1.00): 0.80

Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0.420
Length to Beam Ratio: 10.45 : 1
'Natural speed' for length: 22.32 kts
Power going to wave formation at top speed: 67 %
Trim (Max stability = 0, Max steadiness = 100): 62
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 17.72 ft / 5.40 m
- Forecastle (20 %): 15.75 ft / 4.80 m (13.78 ft / 4.20 m aft of break)
- Mid (50 %): 13.78 ft / 4.20 m
- Quarterdeck (15 %): 13.78 ft / 4.20 m
- Stern: 13.78 ft / 4.20 m
- Average freeboard: 14.33 ft / 4.37 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 173.5 %
- Above water (accommodation/working, high = better): 69.8 %
Waterplane Area: 8,813 Square feet or 819 Square metres
Displacement factor (Displacement / loading): 75 %
Structure weight / hull surface area: 38 lbs/sq ft or 184 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.36
- Overall: 0.55
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

I was going to comment that the sloop looked overgunned to me, but you beat me to it. It's about the same tonnage as the Chilean Bolados class for 1943, but with three times the gun armament. Still, for a compact sloop, seems decent.

I notice you're now assigning weight for radar. Is Persia receiving radar from India? Actually, I don't even recall seeing all that much about India having radar, so I'm curious to know more about it in general...

I'm assuming India has radar in hand at this point - probably has for a couple years given the +5 rule.

The Persians will be picking it up from them, I imagine. This might be their first ship so-fitted, as I'm not sure whether any was designed into their cruisers.

Huh.

Yeah, I think I might go back and re-work the sloop -ditch a 130mm twin mount and add a little speed, maybe. Too much armament on her right now.

But until then, you've got a sense of the capabilities...

Revised sloop design. It occurred to me that the lay-down date needed to be 1941, rather than 1942.

Enter ship name, Enter country Enter ship type laid down 1941

Displacement:
1,200 t light; 1,286 t standard; 1,472 t normal; 1,622 t full load

Dimensions: Length overall / water x beam x draught
330.97 ft / 320.05 ft x 36.09 ft x 11.15 ft (normal load)
100.88 m / 97.55 m x 11.00 m x 3.40 m

Armament:
4 - 5.12" / 130 mm guns (2x2 guns), 67.03lbs / 30.41kg shells, 1941 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 1 raised mount
8 - 1.38" / 35.0 mm guns (4x2 guns), 1.31lbs / 0.59kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
8 - 0.59" / 15.0 mm guns (2x4 guns), 0.10lbs / 0.05kg shells, 1941 Model
Breech loading guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 279 lbs / 127 kg
Shells per gun, main battery: 350

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm
2nd: 0.79" / 20 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 12,001 shp / 8,953 Kw = 25.02 kts
Range 5,000nm at 15.00 kts (Bunkerage = 336 tons)

Complement:
118 - 154

Cost:
£0.716 million / $2.862 million

Distribution of weights at normal displacement:
Armament: 35 tons, 2.4 %
Armour: 21 tons, 1.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 21 tons, 1.4 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 317 tons, 21.5 %
Hull, fittings & equipment: 714 tons, 48.5 %
Fuel, ammunition & stores: 272 tons, 18.5 %
Miscellaneous weights: 113 tons, 7.7 %
-10 t: Radar
-10 t: Sonar
-20 t: DCT + Rails + 60 depth charges
-25 t: Command facilities
-48 t: Weight reserve

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,184 lbs / 991 Kg = 32.6 x 5.1 " / 130 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 1.3 ft / 0.4 m
Roll period: 12.1 seconds
Steadiness - As gun platform (Average = 50 %): 61 %
- Recoil effect (Restricted arc if above 1.00): 0.61
Seaboat quality (Average = 1.00): 1.32

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.440
Length to Beam Ratio: 9.76 : 1
'Natural speed' for length: 17.89 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 46
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.00 ft / 6.40 m
- Forecastle (20 %): 17.06 ft / 5.20 m
- Mid (50 %): 17.06 ft / 5.20 m (9.19 ft / 2.80 m aft of break)
- Quarterdeck (15 %): 9.19 ft / 2.80 m
- Stern: 9.19 ft / 2.80 m
- Average freeboard: 13.44 ft / 4.10 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 99.2 %
- Above water (accommodation/working, high = better): 151.3 %
Waterplane Area: 7,309 Square feet or 679 Square metres
Displacement factor (Displacement / loading): 141 %
Structure weight / hull surface area: 58 lbs/sq ft or 283 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.53
- 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

This is the Persian coastal minesweeper undergoing production...

Enter ship name, Enter country Enter ship type laid down 1942

Displacement:
450 t light; 465 t standard; 497 t normal; 522 t full load

Dimensions: Length overall / water x beam x draught
179.15 ft / 172.57 ft x 26.25 ft x 8.53 ft (normal load)
54.61 m / 52.60 m x 8.00 m x 2.60 m

Armament:
1 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1942 Model
Dual purpose gun in deck mount
on centreline forward
2 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on side, all amidships
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on side, all aft
Weight of broadside 39 lbs / 18 kg
Shells per gun, main battery: 250

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm - -
2nd: 0.59" / 15 mm - -
3rd: 0.59" / 15 mm - -

Machinery:
Diesel Internal combustion motors,
Direct drive, 2 shafts, 3,392 shp / 2,530 Kw = 19.90 kts
Range 4,000nm at 10.00 kts (Bunkerage = 56 tons)

Complement:
52 - 68

Cost:
£0.205 million / $0.820 million

Distribution of weights at normal displacement:
Armament: 5 tons, 1.0 %
Armour: 3 tons, 0.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3 tons, 0.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 89 tons, 17.8 %
Hull, fittings & equipment: 254 tons, 51.0 %
Fuel, ammunition & stores: 47 tons, 9.5 %
Miscellaneous weights: 100 tons, 20.1 %
-10 t: Radar (provision only - not currently fitted)
-10 t: Sonar
-10 t: DCT + Rails + 30 depth charges
-50 t: Sweeping equipment
-20 t: Weight reserve

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
782 lbs / 355 Kg = 22.2 x 4.1 " / 105 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 0.7 ft / 0.2 m
Roll period: 12.8 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.08
Seaboat quality (Average = 1.00): 1.30

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.450
Length to Beam Ratio: 6.58 : 1
'Natural speed' for length: 13.14 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 38
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 18.70 ft / 5.70 m
- Forecastle (20 %): 15.75 ft / 4.80 m
- Mid (40 %): 15.75 ft / 4.80 m (7.87 ft / 2.40 m aft of break)
- Quarterdeck (15 %): 7.87 ft / 2.40 m
- Stern: 7.87 ft / 2.40 m
- Average freeboard: 11.26 ft / 3.43 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 88.4 %
- Above water (accommodation/working, high = better): 109.0 %
Waterplane Area: 2,889 Square feet or 268 Square metres
Displacement factor (Displacement / loading): 156 %
Structure weight / hull surface area: 46 lbs/sq ft or 223 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.11
- Longitudinal: 7.72
- Overall: 1.35
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Good seaboat, rides out heavy weather easily

...and this is the submarine chaser entering production in 1943. Operationally speaking, the Persians may find them a little slow. We'll see if they change it up for the 1944 run.

Enter ship name, Enter country Enter ship type laid down 1943

Displacement:
100 t light; 105 t standard; 111 t normal; 117 t full load

Dimensions: Length overall / water x beam x draught
109.37 ft / 107.28 ft x 16.40 ft x 4.92 ft (normal load)
33.33 m / 32.70 m x 5.00 m x 1.50 m

Armament:
2 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on centreline ends, evenly spread
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1943 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 4 lbs / 2 kg
Shells per gun, main battery: 1,000

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 894 shp / 667 Kw = 17.06 kts
Range 2,000nm at 10.00 kts (Bunkerage = 12 tons)

Complement:
16 - 22

Cost:
£0.047 million / $0.186 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.4 %
Armour: 1 tons, 1.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1 tons, 1.2 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 23 tons, 20.7 %
Hull, fittings & equipment: 51 tons, 45.9 %
Fuel, ammunition & stores: 11 tons, 10.2 %
Miscellaneous weights: 24 tons, 21.6 %
-5 t: Sonar
-10 t: DC, throwers, and 30 DC
-9 t: Weight reserve

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
194 lbs / 88 Kg = 125.6 x 1.5 " / 37 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 0.4 ft / 0.1 m
Roll period: 11.4 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.04
Seaboat quality (Average = 1.00): 1.37

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.450
Length to Beam Ratio: 6.54 : 1
'Natural speed' for length: 10.36 kts
Power going to wave formation at top speed: 69 %
Trim (Max stability = 0, Max steadiness = 100): 36
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 11.81 ft / 3.60 m
- Forecastle (20 %): 7.87 ft / 2.40 m
- Mid (50 %): 7.87 ft / 2.40 m
- Quarterdeck (15 %): 7.87 ft / 2.40 m
- Stern: 7.87 ft / 2.40 m
- Average freeboard: 8.19 ft / 2.50 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 96.2 %
- Above water (accommodation/working, high = better): 105.2 %
Waterplane Area: 1,123 Square feet or 104 Square metres
Displacement factor (Displacement / loading): 148 %
Structure weight / hull surface area: 21 lbs/sq ft or 103 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.79
- Longitudinal: 10.01
- Overall: 1.02
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Good seaboat, rides out heavy weather easily

I think the sloop's definitely an improvement on the original.

Yeah, it's a better balance of capabilities.