Poniższy krążownik dla MW Syjamu został zainspirowany niedawną dyskusją o innym okręcie, z innej epoki, proponowanym dla tej floty (http://springsharp.blogspot.com/2022/09/syjamskie-krazowniki-typu-chakri.html). Nowy krążownik to jednostka średniej wielkości, wybudowana w Niemczech, uzbrojona w 4 działa 170 mm. Tym razem nie przewiduję jakiegoś specjalnego uzasadnienia wyboru akurat takiego zestawu uzbrojenia, może poza tym, że okręt dysponując cięższym uzbrojeniem uzyskuje jednak pewną przewagą nad porównywalnej wielkości przeciwnikiem, a poza tym może dzięki niemu stanowić namiastkę czegoś większego – np. krążowniki pancernego z prawdziwego zdarzenia, na który takiej mniejszej floty akurat może nie być stać. Oczywiście jest to kwestia mocno kontrowersyjna, ale o tym możemy podyskutować w komentarzach ;)
Ayutthaya, siamese protected cruiser laid down 1907 (Engine 1908)
Displacement:
3 731 t light; 3 884 t standard; 4 496 t normal; 4 986 t full load
Dimensions: Length overall / water x beam x draught
412,63 ft / 411,65 ft x 45,57 ft x 17,22 ft (normal load)
125,77 m / 125,47 m x 13,89 m x 5,25 m
Armament:
2 - 6,69" / 170 mm guns in single mounts, 149,90lbs / 67,99kg shells, 1904 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread
2 - 6,69" / 170 mm guns in single mounts, 149,90lbs / 67,99kg shells, 1904 Model
Breech loading guns in deck mounts
on side, all amidships
4 - 3,46" / 88,0 mm guns in single mounts, 20,79lbs / 9,43kg shells, 1905 Model
Quick firing guns in casemate mounts
on side, all amidships
4 guns in hull casemates - Limited use in heavy seas
Weight of broadside 683 lbs / 310 kg
Shells per gun, main battery: 150
4 - 19,7" / 500 mm submerged torpedo tubes
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,97" / 50 mm 1,18" / 30 mm -
2nd: 1,97" / 50 mm 1,18" / 30 mm -
- Armour deck: 1,85" / 47 mm (deck 1,57" / 40 mm, slopes 2,36" / 60 mm), Conning tower: 3,15" / 80 mm
Machinery:
Coal fired boilers, steam turbines,
Direct drive, 4 shafts, 27 276 shp / 20 348 Kw = 26,30 kts
Range 5 000nm at 12,00 kts
Bunker at max displacement = 1 102 tons (100% coal)
Complement:
273 - 356
Cost:
£0,414 million / $1,658 million
Distribution of weights at normal displacement:
Armament: 85 tons, 1,9%
Armour: 474 tons, 10,5%
- Belts: 0 tons, 0,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 32 tons, 0,7%
- Armour Deck: 423 tons, 9,4%
- Conning Tower: 18 tons, 0,4%
Machinery: 1 515 tons, 33,7%
Hull, fittings & equipment: 1 657 tons, 36,8%
Fuel, ammunition & stores: 765 tons, 17,0%
Miscellaneous weights: 0 tons, 0,0%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3 497 lbs / 1 586 Kg = 23,3 x 6,7 " / 170 mm shells or 0,7 torpedoes
Stability (Unstable if below 1.00): 1,34
Metacentric height 2,6 ft / 0,8 m
Roll period: 11,9 seconds
Steadiness - As gun platform (Average = 50 %): 99 %
- Recoil effect (Restricted arc if above 1.00): 0,28
Seaboat quality (Average = 1.00): 1,99
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,487
Length to Beam Ratio: 9,03 : 1
'Natural speed' for length: 20,29 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): -37,00 degrees
Stern overhang: 0,98 ft / 0,30 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23,95 ft / 7,30 m
- Forecastle (20%): 20,44 ft / 6,23 m
- Mid (50%): 17,45 ft / 5,32 m
- Quarterdeck (12%): 19,46 ft / 5,93 m
- Stern: 20,44 ft / 6,23 m
- Average freeboard: 19,44 ft / 5,93 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 135,5%
- Above water (accommodation/working, high = better): 160,9%
Waterplane Area: 12 353 Square feet or 1 148 Square metres
Displacement factor (Displacement / loading): 107%
Structure weight / hull surface area: 69 lbs/sq ft or 335 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,89
- Longitudinal: 3,28
- Overall: 1,02
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
Ayutthaya (1908)
Sukhothai (1909)