W kolejnym
poście prezentuję dwie jednostki: mały drewniany slup (czy jak kto chce -
bo klasyfikacja jest tu sprawą mocno dyskusyjną - nieopancerzony
krążownik albo korwetę) oraz eksperymentalną kanonierkę opancerzoną:
Yubari, japanese sloop laid down 1871
Displacement:
734 t light; 782 t standard; 924 t normal; 1 038 t full load
Dimensions: Length overall / water x beam x draught
163,25 ft / 163,25 ft x 30,97 ft x 12,40 ft (normal load)
49,76 m / 49,76 m x 9,44 m x 3,78 m
Armament:
2 - 7,01" / 178 mm guns in single mounts, 123,04lbs / 55,81kg shells, 1871 Model
Muzzle loading guns in broadside mounts
on side, all forward
4 - 4,72" / 120 mm guns in single mounts, 37,70lbs / 17,10kg shells, 1871 Model
Muzzle loading guns in broadside mounts
on side, all amidships
Weight of broadside 397 lbs / 180 kg
Shells per gun, main battery: 125
Machinery:
Coal fired boilers, simple reciprocating steam engines,
Direct drive, 1 shaft, 1 136 ihp / 847 Kw = 13,00 kts
Range 3 200nm at 8,00 kts
Bunker at max displacement = 256 tons (100% coal)
Complement:
161
Cost:
£0,103 million / $0,411 million
Distribution of weights at normal displacement:
Armament: 50 tons, 5,4%
Machinery: 252 tons, 27,3%
Hull, fittings & equipment: 358 tons, 38,7%
Fuel, ammunition & stores: 190 tons, 20,6%
Miscellaneous weights: 74 tons, 8,0%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
392 lbs / 178 Kg = 3,2 x 7,0 " / 178 mm shells or 0,2 torpedoes
Stability (Unstable if below 1.00): 1,33
Metacentric height 1,4 ft / 0,4 m
Roll period: 10,9 seconds
Steadiness - As gun platform (Average = 50 %): 93 %
- Recoil effect (Restricted arc if above 1.00): 0,43
Seaboat quality (Average = 1.00): 1,87
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,516
Length to Beam Ratio: 5,27 : 1
'Natural speed' for length: 12,78 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 10,40 ft / 3,17 m
- Forecastle (20%): 9,35 ft / 2,85 m
- Mid (50%): 9,35 ft / 2,85 m
- Quarterdeck (15%): 9,35 ft / 2,85 m
- Stern: 9,81 ft / 2,99 m
- Average freeboard: 9,47 ft / 2,89 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 137,7%
- Above water (accommodation/working, high = better): 70,7%
Waterplane Area: 3 296 Square feet or 306 Square metres
Displacement factor (Displacement / loading): 91%
Structure weight / hull surface area: 64 lbs/sq ft or 315 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,86
- Longitudinal: 3,96
- Overall: 1,00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
Okręty w typie:
Yubari (1871)
Chitose (1871)
Omura, japanese armoured gunboat laid down 1872
Displacement:
830 t light; 860 t standard; 940 t normal; 1 003 t full load
Dimensions: Length overall / water x beam x draught
161,45 ft / 161,45 ft x 34,65 ft x 11,22 ft (normal load)
49,21 m / 49,21 m x 10,56 m x 3,42 m
Armament:
1 - 7,99" / 203 mm guns in single mounts, 186,33lbs / 84,52kg shells, 1872 Model
Muzzle loading gun in a deck mount with hoist
on centreline forward
1 - 3,74" / 95,0 mm guns in single mounts, 19,10lbs / 8,66kg shells, 1872 Model
Breech loading gun in a deck mount with hoist
on centreline aft
Weight of broadside 205 lbs / 93 kg
Shells per gun, main battery: 95
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3,94" / 100 mm 76,71 ft / 23,38 m 6,82 ft / 2,08 m
Ends: 2,24" / 57 mm 22,24 ft / 6,78 m 6,27 ft / 1,91 m
62,50 ft / 19,05 m Unarmoured ends
Main Belt covers 73% of normal length
Main belt does not fully cover magazines and engineering spaces
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,18" / 30 mm - -
2nd: 1,18" / 30 mm - -
- Armour deck: 0,98" / 25 mm, Conning tower: 3,35" / 85 mm
Machinery:
Coal fired boilers, simple reciprocating steam engines,
Direct drive, 1 shaft, 850 ihp / 634 Kw = 12,00 kts
Range 2 450nm at 7,00 kts
Bunker at max displacement = 143 tons (100% coal)
Complement:
84 - 110
Cost:
£0,079 million / $0,315 million
Distribution of weights at normal displacement:
Armament: 26 tons, 2,7%
Armour: 196 tons, 20,9%
- Belts: 114 tons, 12,2%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 8 tons, 0,9%
- Armour Deck: 67 tons, 7,1%
- Conning Tower: 7 tons, 0,7%
Machinery: 200 tons, 21,3%
Hull, fittings & equipment: 408 tons, 43,4%
Fuel, ammunition & stores: 109 tons, 11,6%
Miscellaneous weights: 0 tons, 0,0%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
869 lbs / 394 Kg = 4,7 x 8,0 " / 203 mm shells or 0,4 torpedoes
Stability (Unstable if below 1.00): 1,31
Metacentric height 1,6 ft / 0,5 m
Roll period: 11,3 seconds
Steadiness - As gun platform (Average = 50 %): 95 %
- Recoil effect (Restricted arc if above 1.00): 0,31
Seaboat quality (Average = 1.00): 1,90
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,524
Length to Beam Ratio: 4,66 : 1
'Natural speed' for length: 12,71 kts
Power going to wave formation at top speed: 49 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 8,89 ft / 2,71 m
- Forecastle (20%): 8,89 ft / 2,71 m
- Mid (50%): 8,89 ft / 2,71 m
- Quarterdeck (15%): 8,89 ft / 2,71 m
- Stern: 8,89 ft / 2,71 m
- Average freeboard: 8,89 ft / 2,71 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 90,0%
- Above water (accommodation/working, high = better): 74,2%
Waterplane Area: 3 678 Square feet or 342 Square metres
Displacement factor (Displacement / loading): 117%
Structure weight / hull surface area: 73 lbs/sq ft or 356 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,86
- Longitudinal: 3,79
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is cramped
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
Brak komentarzy:
Prześlij komentarz