[SIZE=3]Krum-class, German-designed Bulgarian River Monitor laid down 1936[/SIZE]
Displacement:
401 t light; 440 t standard; 450 t normal; 458 t full load
Dimensions: Length overall / water x beam x draught
198.59 ft / 196.85 ft x 26.25 ft x 4.92 ft (normal load)
60.53 m / 60.00 m x 8.00 m x 1.50 m
Armament:
2 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1936 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread
4 - 3.46" / 88.0 mm guns in single mounts, 20.79lbs / 9.43kg shells, 1936 Model
Quick firing guns in deck mounts
on side, all amidships
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
8 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 303 lbs / 138 kg
Shells per gun, main battery: 160
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1.97" / 50 mm 117.13 ft / 35.70 m 6.14 ft / 1.87 m
Ends: Unarmoured
Main Belt covers 92 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.15" / 80 mm 1.57" / 40 mm -
2nd: 1.57" / 40 mm 0.79" / 20 mm -
3rd: 0.79" / 20 mm - -
4th: 0.39" / 10 mm - -
- Armour deck: 0.39" / 10 mm, Conning tower: 3.94" / 100 mm
Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 1,362 shp / 1,016 Kw = 16.00 kts
Range 1,000nm at 10.00 kts
Bunker at max displacement = 18 tons
Complement:
48 - 63
Cost:
£0.267 million / $1.070 million
Distribution of weights at normal displacement:
Armament: 38 tons, 8.4 %
Armour: 128 tons, 28.3 %
- Belts: 62 tons, 13.8 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 33 tons, 7.2 %
- Armour Deck: 28 tons, 6.2 %
- Conning Tower: 5 tons, 1.1 %
Machinery: 34 tons, 7.6 %
Hull, fittings & equipment: 201 tons, 44.7 %
Fuel, ammunition & stores: 49 tons, 10.9 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
779 lbs / 354 Kg = 7.6 x 5.9 " / 150 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.46
Metacentric height 1.3 ft / 0.4 m
Roll period: 9.7 seconds
Steadiness - As gun platform (Average = 50 %): 54 %
- Recoil effect (Restricted arc if above 1.00): 0.32
Seaboat quality (Average = 1.00): 1.02
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.620
Length to Beam Ratio: 7.50 : 1
'Natural speed' for length: 14.03 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 53
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: 9.84 ft / 3.00 m
- Forecastle (20 %): 6.56 ft / 2.00 m
- Mid (50 %): 6.56 ft / 2.00 m
- Quarterdeck (15 %): 6.56 ft / 2.00 m
- Stern: 6.56 ft / 2.00 m
- Average freeboard: 6.82 ft / 2.08 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 91.0 %
- Above water (accommodation/working, high = better): 100.2 %
Waterplane Area: 3,850 Square feet or 358 Square metres
Displacement factor (Displacement / loading): 89 %
Structure weight / hull surface area: 40 lbs/sq ft or 193 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.35
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Ships in Class
- RM-1 Krum - 1936
- RM-2 Boris - 1936
- RM-3 Kubrat- 1937
- RM-4 Omurtag- 1937
- RM-5 Knyaz Alexander - 1937
This post has been edited 1 times, last edit by "Brockpaine" (Dec 31st 2008, 3:47am)