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