[SIZE=3]Kiyamaki Dagh Class Minesweeper (Coastal)[/SIZE]
Kiyamaki Dagh, M-2, laid down 1931
Kuh-e Damavand, M-3, laid down 1932, lost 1938
Kabir Sabz, M-4, laid down 1932
Dena, M-5, laid down 1932
Bazman, M-6, laid down 1932
Displacement:
473 t light; 501 t standard; 605 t normal; 686 t full load
Dimensions: Length overall / water x beam x draught
227.82 ft / 220.00 ft x 25.00 ft x 7.00 ft (normal load)
69.44 m / 67.06 m x 7.62 m x 2.13 m
Armament:
3 - 4.13" / 105 mm guns in single mounts, 34.00lbs / 15.42kg shells, 1930 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward
4 - 1.97" / 50.0 mm guns (2x2 guns), 4.00lbs / 1.81kg shells, 1926 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
12 - 0.98" / 25.0 mm guns (4x3 guns), 0.57lbs / 0.26kg shells, 1926 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 125 lbs / 57 kg
Shells per gun, main battery: 200
Armour:
- 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: 1.00" / 25 mm - -
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 2,681 shp / 2,000 Kw = 18.70 kts
Range 4,000nm at 15.00 kts (Bunkerage = 188 tons)
Complement:
60 - 79
Cost:
£0.186 million / $0.745 million
Distribution of weights at normal displacement:
Armament: 16 tons, 2.6 %
Armour: 16 tons, 2.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 16 tons, 2.6 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 79 tons, 13.1 %
Hull, fittings & equipment: 262 tons, 43.4 %
Fuel, ammunition & stores: 132 tons, 21.8 %
Miscellaneous weights: 100 tons, 16.5 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,041 lbs / 472 Kg = 29.5 x 4.1 " / 105 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 0.7 ft / 0.2 m
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.58
Seaboat quality (Average = 1.00): 1.55
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 8.80 : 1
'Natural speed' for length: 14.83 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 45
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 16.00 ft / 4.88 m
- Forecastle (20 %): 9.75 ft / 2.97 m
- Mid (50 %): 9.65 ft / 2.94 m
- Quarterdeck (15 %): 9.65 ft / 2.94 m
- Stern: 9.65 ft / 2.94 m
- Average freeboard: 10.19 ft / 3.10 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 81.8 %
- Above water (accommodation/working, high = better): 114.3 %
Waterplane Area: 3,723 Square feet or 346 Square metres
Displacement factor (Displacement / loading): 151 %
Structure weight / hull surface area: 40 lbs/sq ft or 193 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.69
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather