Acadian Starting Ships

[Carthaginian]

One of the finalized designs for the Acadian Navy... a transitional design between the older ironclads and the newer 'battleships.'
Designed with a brigantine rig, the I.A.M.S. Tenetke (Thunder) and her sister the I.A.M.S. Vtoyehvtte (Lightning) were altered during construction to instead become the first ships in the Acadian fleet with the heavy pole masts that would become a trademark of the fleet. Their odd-shaped bows and sloping sterns also became hallmarks of Acadian design. They were the last ships of the fleet to use the older 9.4"/L19 and the first to mount the new 6.4"/L35.

Tenetke, Acadie Armored Cruiser laid down 1874
Barbette ship
Armoured Frigate (Broadside ironclad)

Displacement:
   5,562 t light; 5,890 t standard; 6,400 t normal; 6,808 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (280.00 ft / 280.00 ft) x 56.00 ft x (22.00 / 23.19 ft)
   (85.34 m / 85.34 m) x 17.07 m  x (6.71 / 7.07 m)

Armament:
      4 - 9.40" / 239 mm 19.0 cal guns - 300.01lbs / 136.08kg shells, 100 per gun
     Breech loading guns in open barbette mounts, 1870 Model
     2 x Single mounts on sides, forward deck forward
     2 x Single mounts on centreline, aft evenly spread
      6 - 6.40" / 163 mm 35.0 cal guns - 100.00lbs / 45.36kg shells, 200 per gun
     Breech loading guns in deck mounts, 1870 Model
     2 x Single mounts on centreline, forward deck forward
     4 x Single mounts on sides, aft evenly spread
      6 - 6.40" / 163 mm 35.0 cal guns - 100.00lbs / 45.36kg shells, 200 per gun
     Breech loading guns in broadside mounts, 1870 Model
     6 x Single mounts on sides, evenly spread
      6 hull mounts on upper deck- Limited use in heavy seas
      Weight of broadside 2,400 lbs / 1,089 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   6.00" / 152 mm   280.00 ft / 85.34 m   9.00 ft / 2.74 m
   Upper:   6.00" / 152 mm   168.00 ft / 51.21 m   14.00 ft / 4.27 m
     Main Belt covers 154 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:         -            -         6.00" / 152 mm
   2nd:   3.00" / 76 mm         -               -

   - Protected deck - single deck:
   For and Aft decks: 1.00" / 25 mm
   Forecastle: 2.00" / 51 mm  Quarter deck: 2.00" / 51 mm

   - Conning towers: Forward 6.00" / 152 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 4,500 ihp / 3,357 Kw = 14.20 kts
   Range 2,345nm at 10.00 kts
   Bunker at max displacement = 918 tons (100% coal)

Complement:
   357 - 465

Cost:
   £0.417 million / $1.669 million

Distribution of weights at normal displacement:
   Armament: 276 tons, 4.3 %
      - Guns: 276 tons, 4.3 %
   Armour: 1,953 tons, 30.5 %
      - Belts: 1,221 tons, 19.1 %
      - Armament: 413 tons, 6.4 %
      - Armour Deck: 275 tons, 4.3 %
      - Conning Tower: 45 tons, 0.7 %
   Machinery: 1,021 tons, 16.0 %
   Hull, fittings & equipment: 2,276 tons, 35.6 %
   Fuel, ammunition & stores: 838 tons, 13.1 %
   Miscellaneous weights: 35 tons, 0.5 %
      - Hull above water: 35 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     8,727 lbs / 3,959 Kg = 27.7 x 9.4 " / 239 mm shells or 1.9 torpedoes
   Stability (Unstable if below 1.00): 1.44
   Metacentric height 3.9 ft / 1.2 m
   Roll period: 11.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.43
   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): 0.649 / 0.655
   Length to Beam Ratio: 5.00 : 1
   'Natural speed' for length: 16.73 kts
   Power going to wave formation at top speed: 47 %
   Trim (Max stability = 0, Max steadiness = 100): 35
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  21.00 ft / 6.40 m,  19.00 ft / 5.79 m
      - Forward deck:   30.00 %,  19.00 ft / 5.79 m,  18.00 ft / 5.49 m
      - Aft deck:   30.00 %,  18.00 ft / 5.49 m,  18.50 ft / 5.64 m
      - Quarter deck:   20.00 %,  18.50 ft / 5.64 m,  19.00 ft / 5.79 m
      - Average freeboard:      18.74 ft / 5.71 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 67.0 %
      - Above water (accommodation/working, high = better): 117.7 %
   Waterplane Area: 12,005 Square feet or 1,115 Square metres
   Displacement factor (Displacement / loading): 134 %
   Structure weight / hull surface area: 127 lbs/sq ft or 622 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 4.87
      - Overall: 1.10
   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

[eltf177]

The SS3 report says four 9.4-inch guns, then gives the location of three single mounts. The drawing confirms this.

If you drop one 9.4-inch gun from the report you could probably improve other qualities of the design...

[Tanthalas]

actualy I think its suposed to be 2 mounts foreward one on each side. 

[Carthaginian]

The SS3 report says four 9.4-inch guns, then gives the location of three single mounts. The drawing confirms this.

If you drop one 9.4-inch gun from the report you could probably improve other qualities of the design...

There is enough weight for the 4th gun... but I didn't notice the discrepancy with the mounts, but I have corrected it.
As far as the 'other qualities' of the ship, they are exactly like I want them to be and very comparable to the historic vessel I am using to model her. I don't think they need to be changed in any way.

[Carthaginian]

Art redone for the Tenetke.
For good or for ill, I think I have my 'style' of drawing down now.

[Korpen]

Why have the 16cm guns in deck mounts? If you move them down to hull casemates you would allow them to benefit from the upper belt you already have installed, they would be more protected from weather and wind, the main guns would have greater arcs of fire and the ship would present a smaller target.
If not, you have an upper belt at all? Without a batterydeck there seems not to be much point to it.

[Carthaginian]

Why have the 16cm guns in deck mounts? If you move them down to hull casemates you would allow them to benefit from the upper belt you already have installed, they would be more protected from weather and wind, the main guns would have greater arcs of fire and the ship would present a smaller target.
If not, you have an upper belt at all? Without a batterydeck there seems not to be much point to it.

1.) I am NOT sailing this ship in protected waters, Korpen. She sails on the open North Atlantic... and that means that having holes in the side of the ship is A Really Bad Idea^(R). The duns are on the main deck so you don't have wet guns letting water rush into the ship all the time. Yes, the guns are a bit more exposed- but they are dryer located on the deck.
2.) The 'upper belt' is an armored box citadel for the barbettes, like in any other barbette ship.
3.) The 'upper belt' additionally protects the vitals. All the ship's machinery is located below the deck behind the upper deck. This means that the vitals are more well protected than on a ship witohut the upper belt in place.


So, yeah- that's my logic.

[Korpen]

1.) I am NOT sailing this ship in protected waters, Korpen. She sails on the open North Atlantic... and that means that having holes in the side of the ship is A Really Bad Idea^(R). The duns are on the main deck so you don't have wet guns letting water rush into the ship all the time. Yes, the guns are a bit more exposed- but they are dryer located on the deck.
2.) The 'upper belt' is an armored box citadel for the barbettes, like in any other barbette ship.
3.) The 'upper belt' additionally protects the vitals. All the ship's machinery is located below the deck behind the upper deck. This means that the vitals are more well protected than on a ship witohut the upper belt in place.

1: Not a problem if you crew learns to close the hatches in front of the casemate (remember that the guns do not extend beyond the hull unless in battery to fire), with the added advantage that it reduce the number of times one need to use sledgehammers to get ice accumulation away from the guns...
I would say at this time that deck guns are far more exposed to weather then the casemate guns are in general.
3: Is that the thinking behind not having a protected deck, and do you expect the deck to be above the waterline?

[Carthaginian]

1: Not a problem if you crew learns to close the hatches in front of the casemate (remember that the guns do not extend beyond the hull unless in battery to fire), with the added advantage that it reduce the number of times one need to use sledgehammers to get ice accumulation away from the guns...
I would say at this time that deck guns are far more exposed to weather then the casemate guns are in general.
3: Is that the thinking behind not having a protected deck, and do you expect the deck to be above the waterline?

1.) You know... I'm going to have to make some adjustments to the ship to increase strength. I might just try and make room for a few below decks guns as I do that.

3.) The historic ship had 0.5" splinter protection on each of the two upper decks. I might also change that to a protected deck on the revision.

EDIT: worked on the ship a bit to get it to necessary standards- 1.10 composite, etc.
Found out that I had some extra strength there after the necessary adjustments, so I took Korpen's advice and added a few more 6.4" guns in a broadside battery.