Sun Quan, Wu Enter ship type laid down 1852
Armoured Frigate (Broadside ironclad)
Displacement:
2 941 t light; 3 173 t standard; 3 609 t normal; 3 958 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(201,90 ft / 182,41 ft) x 48,56 ft x (22,97 / 24,85 ft)
(61,54 m / 55,60 m) x 14,80 m x (7,00 / 7,57 m)
Armament:
30 - 4,20" / 107 mm 25,0 cal guns - 30,00lbs / 13,61kg shells, 150 per gun
Muzzle loading guns in broadside mounts, 1852 Model
30 x Single mounts on sides, evenly spread
30 hull mounts on upper deck- Limited use in heavy seas
6 - 8,00" / 203 mm 45,0 cal guns - 169,29lbs / 76,79kg shells, 150 per gun
Breech loading guns in deck mounts, 1852 Model
6 x Single mounts on sides, evenly spread
Weight of broadside 1 916 lbs / 869 kg
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2,00" / 51 mm 118,57 ft / 36,14 m 8,37 ft / 2,55 m
Ends: Unarmoured
Main Belt covers 100 % of normal length
Machinery:
Coal fired boilers, simple reciprocating steam engines,
Direct drive, 1 shaft, 1 133 ihp / 845 Kw = 10,00 kts
Range 2 000nm at 7,00 kts
Bunker at max displacement = 785 tons (100% coal)
Complement:
232 - 302
Cost:
£0,240 million / $0,961 million
Distribution of weights at normal displacement:
Armament: 198 tons, 5,5 %
- Guns: 198 tons, 5,5 %
Armour: 96 tons, 2,7 %
- Belts: 96 tons, 2,7 %
Machinery: 513 tons, 14,2 %
Hull, fittings & equipment: 1 934 tons, 53,6 %
Fuel, ammunition & stores: 668 tons, 18,5 %
Miscellaneous weights: 200 tons, 5,5 %
- Hull below water: 100 tons
- On freeboard deck: 50 tons
- Above deck: 50 tons
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2 818 lbs / 1 278 Kg = 176,9 x 4,2 " / 107 mm shells or 1,2 torpedoes
Stability (Unstable if below 1.00): 1,16
Metacentric height 2,2 ft / 0,7 m
Roll period: 13,6 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- Recoil effect (Restricted arc if above 1.00): 0,83
Seaboat quality (Average = 1.00): 2,00
Hull form characteristics:
Hull has a flush deck,
a normal bow and a round stern
Block coefficient (normal/deep): 0,621 / 0,629
Length to Beam Ratio: 3,76 : 1
'Natural speed' for length: 13,51 kts
Power going to wave formation at top speed: 44 %
Trim (Max stability = 0, Max steadiness = 100): 68
Bow angle (Positive = bow angles forward): 25,00 degrees
Stern overhang: 9,84 ft / 3,00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20,00 %, 20,67 ft / 6,30 m, 20,67 ft / 6,30 m
- Forward deck: 30,00 %, 20,67 ft / 6,30 m, 20,67 ft / 6,30 m
- Aft deck: 35,00 %, 20,67 ft / 6,30 m, 20,67 ft / 6,30 m
- Quarter deck: 15,00 %, 20,67 ft / 6,30 m, 20,67 ft / 6,30 m
- Average freeboard: 20,67 ft / 6,30 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 69,8 %
- Above water (accommodation/working, high = better): 110,0 %
Waterplane Area: 6 484 Square feet or 602 Square metres
Displacement factor (Displacement / loading): 186 %
Structure weight / hull surface area: 160 lbs/sq ft or 782 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,88
- Longitudinal: 18,47
- Overall: 1,20
Excellent machinery, storage, compartmentation space
Adequate accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
Start in 1860 to have a better ship, more useful at the begining of the game, in1880.
Jef
I agree, though maybe it is more of a try, to get a feel of the rules. Looks nice. Not 100% sure about the barrel lengths for those days. Seem a tad long. Also, if the vessel has rigging, the miscellaneous weights might not be enough. A 3609 ton ship requires 234.6 tons below waterline and 54.2 tons above deck for full rig or 144.4 tons below waterline and 36.1 tons above deck for brigantine rig.
I know that the barrels of those guns were pretty standard in the 1860's... so he should be good there.
The waterline belt is a nice touch- most ships of that time also sported some limited battery armor as well... or even simply an armored citadel around the guns/magazines.
A nice little 'experimental' ironclad... though the first armored ship in Europe was about a decade later.
However, since the Asians originated the concept almost 500 years prior... no real problem there.
QuoteI know that the barrels of those guns were pretty standard in the 1960's...
1960?!? Oi! No cheating here!! ;D
For naval guns, with a few exceptions that just go over the 20 calibers, guns appear to be between 10 and 20 calibers long. That seems quite obvious and logical with muzzle loading guns. The longer the gun, the further you have to haul it back in order to reload it.
Few examples:
68-pounder (1846, 8.12"/16 cal)
RBL 7 inch Armstrong gun (1861, 14.2 cal)
RBL 40 pounder Armstrong gun (1860s, 4.75"/22.4 cal)
RBL 20 pounder Armstrong gun (1859, 3.75/14.4 cal)
RML 64 pounder 64 cwt gun (1865, 6.3"/15.5 cal)
RML 7 inch gun (1865, 18 cal)
RML 9 inch 12 ton gun (1865, 13.9 cal)
Dahlgren 32-pdr. of 27 cwt. (6.2 inch/15.1 cal)
IX-inch Dahlgren shell gun (1855, 14.5 cal)
X-inch Dahlgren shell gun (1855, 14.6 cal)
XI-inch Dahlgren shell gun (1856, 14.6 cal)
XV-inch Dahlgren shell gun Short (1862, 10.8 cal)
XV-inch Dahlgren shell gun Long (1864, 11.9 cal)
Dahlgren 50-pdr rifle (5.1"/21 cal)
Dahlgren 150-pdr rifle (7.5"/18.7 cal)
Dahlgren 12 in. rifle (14.8 cal)
4.2-in Naval Parrott (24.3 cal)
6.4-in Naval Parrott (21.6 cal)
8-in Naval Parrott (18.3 cal)
Canon obusier de 12 (1853, 4.62"/14.3 cal)
Quote from: Walter on November 13, 2011, 02:50:37 AM
QuoteI know that the barrels of those guns were pretty standard in the 1960's...
1960?!? Oi! No cheating here!! ;D
Fixed... I was in a hurry to get my wife off Skyrim when I typed that.
AS these would be comparable to the smaller Parrott guns, I think 35 caliber would not be too large.
Having taken a quick look around I have not run across any 1865 or earlier naval guns in excess of 25 calibers.
DAMMIT.
I have GOT to stop typing at 0100.
I meant 25 calibers.
Sorry guys.
Less late shifts, more coffee needed.
Thank you all on the comments, the BL loaders are indeed modeled on the Naval Parrots and the ship I was trying to do was the HMS Stockholm but as you can see I am still a bit hazy when it comes to sim ships of this era