France 1870 restart

[Jefgte]

For the moment, I made no modif on my last 6x4 Plan.
All SS are ready.
The only modif to come is perhaps the Courageux class, updated from 1820 to 2000t.

Jef  ;)

[Jefgte]

Testing a 50m ship

50m, France 2x194+4x140 laid down 1870

Displacement:
   895 t light; 962 t standard; 1 064 t normal; 1 146 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (164.04 ft / 157.48 ft) x 19.69 ft (Bulges 24.93 ft) x (15.55 / 16.81 ft)
   (50.00 m / 48.00 m) x 6.00 m (Bulges 7.60 m)  x (4.74 / 5.12 m)

Armament:
      2 - 7.64" / 194 mm 20.0 cal guns - 167.09lbs / 75.79kg shells, 120 per gun
     Breech loading guns in casemate mounts, 1870 Model
     2 x Single mounts on centreline ends, evenly spread
      4 - 5.51" / 140 mm 30.0 cal guns - 64.57lbs / 29.29kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1870 Model
     4 x Single mounts on sides, evenly spread
      4 - 1.85" / 47.0 mm 45.0 cal guns - 2.67lbs / 1.21kg shells, 250 per gun
     Breech loading guns in deck mounts, 1870 Model
     4 x Single mounts on sides, evenly spread
      4 - 0.51" / 13.0 mm 45.0 cal guns - 0.07lbs / 0.03kg shells, 1 000 per gun
     Breech loading guns in deck mounts, 1870 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 603 lbs / 274 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   0.98" / 25 mm   141.08 ft / 43.00 m   6.56 ft / 2.00 m
   Ends:   Unarmoured
     Main Belt covers 138 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.79" / 20 mm         -         0.79" / 20 mm
   2nd:   0.79" / 20 mm         -         0.79" / 20 mm
   4th:   0.39" / 10 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 0.98" / 25 mm
   Forecastle: 0.79" / 20 mm  Quarter deck: 0.79" / 20 mm

   - Conning towers: Forward 0.98" / 25 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 1 737 ihp / 1 296 Kw = 14.00 kts
   Range 2 700nm at 7.00 kts
   Bunker at max displacement = 185 tons (100% coal)

Complement:
   93 - 121

Cost:
   £0.102 million / $0.410 million

Distribution of weights at normal displacement:
   Armament: 50 tons, 4.7 %
      - Guns: 50 tons, 4.7 %
   Armour: 92 tons, 8.6 %
      - Belts: 36 tons, 3.4 %
      - Armament: 13 tons, 1.2 %
      - Armour Deck: 40 tons, 3.8 %
      - Conning Tower: 2 tons, 0.2 %
   Machinery: 395 tons, 37.1 %
   Hull, fittings & equipment: 283 tons, 26.6 %
   Fuel, ammunition & stores: 169 tons, 15.9 %
   Miscellaneous weights: 75 tons, 7.0 %
      - Above deck: 75 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     292 lbs / 132 Kg = 1.9 x 7.6 " / 194 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.11
   Metacentric height 0.5 ft / 0.2 m
   Roll period: 14.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.77
   Seaboat quality  (Average = 1.00): 1.21

Hull form characteristics:
   Hull has raised forecastle,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.610 / 0.608
   Length to Beam Ratio: 6.32 : 1
   'Natural speed' for length: 12.55 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -30.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   16.00 %,  11.15 ft / 3.40 m,  10.50 ft / 3.20 m
      - Forward deck:   33.00 %,  6.56 ft / 2.00 m,  6.56 ft / 2.00 m
      - Aft deck:   33.00 %,  6.56 ft / 2.00 m,  6.56 ft / 2.00 m
      - Quarter deck:   18.00 %,  6.56 ft / 2.00 m,  6.56 ft / 2.00 m
      - Average freeboard:      7.23 ft / 2.20 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 137.3 %
      - Above water (accommodation/working, high = better): 30.8 %
   Waterplane Area: 2 289 Square feet or 213 Square metres
   Displacement factor (Displacement / loading): 91 %
   Structure weight / hull surface area: 62 lbs/sq ft or 302 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.86
      - Longitudinal: 3.91
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Extremely poor accommodation and workspace room
   Good seaboat, rides out heavy weather easily

[Jefgte]

C class, 1820t & 16 ships is removed from the plan.
This 1400t is in the plan with 24 ships.

69m, France 4x194+3x164+4x47+4x13 laid down 1870

Displacement:
   1 400 t light; 1 505 t standard; 1 641 t normal; 1 749 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (226.38 ft / 219.82 ft) x 22.97 ft (Bulges 31.50 ft) x (13.60 / 14.61 ft)
   (69.00 m / 67.00 m) x 7.00 m (Bulges 9.60 m)  x (4.14 / 4.45 m)

Armament:
      4 - 7.64" / 194 mm 20.0 cal guns - 167.09lbs / 75.79kg shells, 120 per gun
     Breech loading guns in casemate mounts, 1870 Model
     4 x Single mounts on sides, forward deck aft
      2 - 6.46" / 164 mm 30.0 cal guns - 103.79lbs / 47.08kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1870 Model
     2 x Single mounts on sides, forward deck forward
      1 - 6.46" / 164 mm 30.0 cal gun - 103.79lbs / 47.08kg shells, 150 per gun
     Breech loading gun in casemate mount, 1870 Model
     1 x Single mount on centreline, aft deck aft
      4 - 1.85" / 47.0 mm 45.0 cal guns - 2.67lbs / 1.21kg shells, 250 per gun
     Breech loading guns in deck mounts, 1870 Model
     4 x Single mounts on sides, evenly spread
      4 - 0.51" / 13.0 mm 45.0 cal guns - 0.07lbs / 0.03kg shells, 1 000 per gun
     Breech loading guns in deck mounts, 1870 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 991 lbs / 449 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   1.57" / 40 mm   167.32 ft / 51.00 m   6.56 ft / 2.00 m
   Ends:   Unarmoured
     Main Belt covers 117 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.57" / 40 mm         -         1.57" / 40 mm
   2nd:   1.57" / 40 mm         -         1.18" / 30 mm
   4th:   0.39" / 10 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 1.57" / 40 mm
   Forecastle: 0.98" / 25 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 1.57" / 40 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 1 976 ihp / 1 474 Kw = 14.00 kts
   Range 2 700nm at 7.00 kts
   Bunker at max displacement = 244 tons (100% coal)

Complement:
   128 - 167

Cost:
   £0.141 million / $0.565 million

Distribution of weights at normal displacement:
   Armament: 76 tons, 4.7 %
      - Guns: 76 tons, 4.7 %
   Armour: 200 tons, 12.2 %
      - Belts: 70 tons, 4.3 %
      - Armament: 25 tons, 1.5 %
      - Armour Deck: 101 tons, 6.2 %
      - Conning Tower: 5 tons, 0.3 %
   Machinery: 484 tons, 29.5 %
   Hull, fittings & equipment: 524 tons, 32.0 %
   Fuel, ammunition & stores: 240 tons, 14.6 %
   Miscellaneous weights: 115 tons, 7.0 %
      - Above deck: 115 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     754 lbs / 342 Kg = 4.8 x 7.6 " / 194 mm shells or 0.5 torpedoes
   Stability (Unstable if below 1.00): 1.23
   Metacentric height 0.8 ft / 0.2 m
   Roll period: 14.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 91 %
         - Recoil effect (Restricted arc if above 1.00): 0.74
   Seaboat quality  (Average = 1.00): 1.82

Hull form characteristics:
   Hull has raised forecastle,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.610 / 0.605
   Length to Beam Ratio: 6.98 : 1
   'Natural speed' for length: 14.83 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -30.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   18.00 %,  13.12 ft / 4.00 m,  11.81 ft / 3.60 m
      - Forward deck:   32.00 %,  7.87 ft / 2.40 m,  7.87 ft / 2.40 m
      - Aft deck:   32.00 %,  7.87 ft / 2.40 m,  7.87 ft / 2.40 m
      - Quarter deck:   18.00 %,  7.87 ft / 2.40 m,  7.87 ft / 2.40 m
      - Average freeboard:      8.68 ft / 2.64 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 113.1 %
      - Above water (accommodation/working, high = better): 43.7 %
   Waterplane Area: 3 727 Square feet or 346 Square metres
   Displacement factor (Displacement / loading): 108 %
   Structure weight / hull surface area: 74 lbs/sq ft or 360 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.92
      - Longitudinal: 2.27
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Extremely poor 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

[KWorld]

What's the role for this vessel?

Looks like it has masts and sails, but I'm not sure.  If it does, the aft casemate will have limited arcs because of the rigging.

[Jefgte]

What's the role for this vessel?

Have French semi heavy guns every where on all oceans.
Add semi heavy guns in the Battleline

Looks like it has masts and sails, but I'm not sure.  If it does, the aft casemate will have limited arcs because of the rigging.

That's just a drawing problem, easy to resolve.

Jef

[KWorld]

What's the role for this vessel?

Have French semi heavy guns every where on all oceans.
Add semi heavy guns in the Battleline

So, that means the French battle line speed is going to be 14 knots?

[Jefgte]

So, that means the French battle line speed is going to be 14 knots?

Yes, 14kts for 9 BBs + 24 Armored Gunboats & 16kts for the scout cruisers.

[Jefgte]

Working on the starting spreadsheet...


Actual composition of the Fleet

Class	# in class	Light displacement		Class tonnage
BB class A - Audacieux	3	6000		18000
BB class B - Brave	6	4640		27840
AGB class C - Chevalier	8	2360		18880
AGB class D - Décidée	16	1400		22400		33 Combat ships	14kts
SC class A -	12	2135		25620		12 Scout ships	16kts
GB1	12	860		10320		12 Station ships	14kts
GB2	12	200		2400		12 Patrol ships
	0	0		0
	0	0		0
	0	0		0
	0	0		0
	0	0		0
	0	0		0
	0	0		0
	0	0		0
	Total ships=	69			Tonnage =	125460

Adjustements are probable...

[eltf177]

It appears that the 69m design has no heavy forward firing guns except for the forward beam casemates...

[KWorld]

A not uncommon problem for ships with sails & rigging.

[Jefgte]

Heavy guns are in the side citadelle...

[Jefgte]

Ram/Gunboat to close a strait before torpedoes born

1200t, 52m, France 1x240+1x140 laid down 1870

Displacement:
   1 200 t light; 1 234 t standard; 1 261 t normal; 1 283 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (177.17 ft / 170.60 ft) x 22.97 ft (Bulges 29.53 ft) x (13.78 / 14.04 ft)
   (54.00 m / 52.00 m) x 7.00 m (Bulges 9.00 m)  x (4.20 / 4.28 m)

Armament:
      1 - 9.45" / 240 mm 20.0 cal gun - 316.36lbs / 143.50kg shells, 30 per gun
     Breech loading gun in casemate mount, 1870 Model
     1 x Single mount on centreline, forward deck forward
      1 - 5.51" / 140 mm 20.0 cal gun - 62.80lbs / 28.48kg shells, 60 per gun
     Breech loading gun in casemate mount, 1870 Model
     1 x Single mount on centreline, aft deck aft
      4 - 1.85" / 47.0 mm 45.0 cal guns - 2.67lbs / 1.21kg shells, 250 per gun
     Breech loading guns in deck mounts, 1870 Model
     4 x Single mounts on sides, evenly spread
      4 - 0.51" / 13.0 mm 45.0 cal guns - 0.07lbs / 0.03kg shells, 1 000 per gun
     Breech loading guns in deck mounts, 1870 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 390 lbs / 177 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Ends:   1.97" / 50 mm     49.21 ft / 15.00 m   7.87 ft / 2.40 m
     121.39 ft / 37.00 m Unarmoured ends

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   3.94" / 100 mm         -         1.18" / 30 mm
   2nd:   1.18" / 30 mm         -         0.79" / 20 mm
   4th:   0.39" / 10 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 0.00" / 0 mm
   Forecastle: 3.94" / 100 mm  Quarter deck: 0.00" / 0 mm

   - Conning towers: Forward 3.94" / 100 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 3 300 ihp / 2 462 Kw = 16.01 kts
   Range 540nm at 7.00 kts
   Bunker at max displacement = 50 tons (100% coal)

Complement:
   105 - 137

Cost:
   £0.135 million / $0.540 million

Distribution of weights at normal displacement:
   Armament: 27 tons, 2.1 %
      - Guns: 27 tons, 2.1 %
   Armour: 79 tons, 6.3 %
      - Belts: 28 tons, 2.2 %
      - Armament: 16 tons, 1.3 %
      - Armour Deck: 25 tons, 2.0 %
      - Conning Tower: 10 tons, 0.8 %
   Machinery: 603 tons, 47.8 %
   Hull, fittings & equipment: 402 tons, 31.9 %
   Fuel, ammunition & stores: 62 tons, 4.9 %
   Miscellaneous weights: 88 tons, 7.0 %
      - Above deck: 88 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     331 lbs / 150 Kg = 1.1 x 9.4 " / 240 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.20
   Metacentric height 0.8 ft / 0.2 m
   Roll period: 14.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 72 %
         - Recoil effect (Restricted arc if above 1.00): 0.49
   Seaboat quality  (Average = 1.00): 1.20

Hull form characteristics:
   Hull has low forecastle, low quarterdeck ,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.636 / 0.635
   Length to Beam Ratio: 5.78 : 1
   'Natural speed' for length: 13.06 kts
   Power going to wave formation at top speed: 64 %
   Trim (Max stability = 0, Max steadiness = 100): 60
   Bow angle (Positive = bow angles forward): -30.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   24.00 %,  7.87 ft / 2.40 m,  6.89 ft / 2.10 m
      - Forward deck:   33.00 %,  11.48 ft / 3.50 m,  11.48 ft / 3.50 m
      - Aft deck:   25.00 %,  11.48 ft / 3.50 m,  11.48 ft / 3.50 m
      - Quarter deck:   18.00 %,  6.89 ft / 2.10 m,  6.89 ft / 2.10 m
      - Average freeboard:      9.65 ft / 2.94 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 161.1 %
      - Above water (accommodation/working, high = better): 61.7 %
   Waterplane Area: 2 963 Square feet or 275 Square metres
   Displacement factor (Displacement / loading): 68 %
   Structure weight / hull surface area: 66 lbs/sq ft or 320 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.86
      - Longitudinal: 4.17
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

[Jefgte]

Testing a spare boat to protect harbors & straits patrols

1870-Spare ship, France 80t-100kg+1x37 laid down 1870

Displacement:
   80 t light; 82 t standard; 84 t normal; 85 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (124.67 ft / 124.67 ft) x 13.78 ft x (4.27 / 4.31 ft)
   (38.00 m / 38.00 m) x 4.20 m  x (1.30 / 1.31 m)

Armament:
      1 - 1.46" / 37.0 mm 45.0 cal gun - 1.08lbs / 0.49kg shells, 100 per gun
     Breech loading gun in deck mount, 1870 Model
     1 x Single mount on centreline, forward deck aft
      Weight of broadside 1 lbs / 0 kg

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 937 ihp / 699 Kw = 17.95 kts
   Range 100nm at 8.00 kts
   Bunker at max displacement = 3 tons (100% coal)
     Caution: Delicate, lightweight machinery

Complement:
   13 - 17

Cost:
   £0.010 million / $0.040 million

Distribution of weights at normal displacement:
   Armament: 0 tons, 0.4 %
      - Guns: 0 tons, 0.4 %
   Machinery: 51 tons, 60.7 %
   Hull, fittings & equipment: 25 tons, 30.0 %
   Fuel, ammunition & stores: 3 tons, 3.9 %
   Miscellaneous weights: 4 tons, 5.0 %
      - Hull below water: 4 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     12 lbs / 6 Kg = 11.3 x 1.5 " / 37 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.44
   Metacentric height 0.5 ft / 0.1 m
   Roll period: 8.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 74 %
         - Recoil effect (Restricted arc if above 1.00): 0.01
   Seaboat quality  (Average = 1.00): 1.08

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.400 / 0.402
   Length to Beam Ratio: 9.05 : 1
   'Natural speed' for length: 11.17 kts
   Power going to wave formation at top speed: 61 %
   Trim (Max stability = 0, Max steadiness = 100): 68
   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:   18.00 %,  7.22 ft / 2.20 m,  5.58 ft / 1.70 m
      - Forward deck:   32.00 %,  5.58 ft / 1.70 m,  4.92 ft / 1.50 m
      - Aft deck:   35.00 %,  4.92 ft / 1.50 m,  4.92 ft / 1.50 m
      - Quarter deck:   15.00 %,  4.92 ft / 1.50 m,  4.59 ft / 1.40 m
      - Average freeboard:      5.24 ft / 1.60 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 202.3 %
      - Above water (accommodation/working, high = better): 78.7 %
   Waterplane Area: 1 057 Square feet or 98 Square metres
   Displacement factor (Displacement / loading): 18 %
   Structure weight / hull surface area: 14 lbs/sq ft or 67 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.45
      - Longitudinal: 1.21
      - Overall: 0.50
   Caution: Hull subject to strain in open-sea
   Extremely poor machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

100kg dynamite on a 12m spare
This ship is also equipped with sails

[KWorld]

Ah, a spar torpedo boat.  (The extra "e" was confusing me more than a little.)  The Austrians have something similar, though a bit larger, to perform the same role.

Your note says this vessel also has sails, but I don't see any weight allocation for masts.   Also, isn't she a bit slow to use the DD/TB weak hull rules?

[Jefgte]

(The extra "e" was confusing me more than a little.) 

Sorry, that's a confuse translate  :-\

Your note says this vessel also has sails, but I don't see any weight allocation for masts.   Also, isn't she a bit slow to use the DD/TB weak hull rules?

Misc weight is 4.2t => 4t are for mast & sails
This is a fast ship, a kind of pre TD.

--
First real French TB are for 1875

http://fr.wikipedia.org/wiki/Liste_des_torpilleurs_num%C3%A9rot%C3%A9s_de_la_Marine_fran%C3%A7aise