With the need for a fast torpedo craft with enough range to accompany the HSF the following design was drafted. While under gunned compared to the GTB 1912 class, the higher speed is considered more important for making successful torpedo attacks on newer, faster enemy vessels. Combining new turbines and deleting 1 10cm gun yeilded a 3.89 kt speed increase with the same range as the GTB 1912 class
GTB-1916, Deutscher Kaiserreich Großestorpedobooten laid down 1916
Displacement:
1,000 t light; 1,032 t standard; 1,162 t normal; 1,266 t full load
Dimensions: Length overall / water x beam x draught
323.64 ft / 319.55 ft x 26.64 ft x 9.84 ft (normal load)
98.65 m / 97.40 m x 8.12 m x 3.00 m
Armament:
3 - 4.13" / 105 mm guns in single mounts, 33.07lbs / 15.00kg shells, 1916 Model
Quick firing guns in deck mounts
on centreline, evenly spread
Aft Main mounts separated by engine room
2 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1916 Model
Anti-aircraft guns in deck mounts
on side, all amidships
2 - 0.30" / 7.7 mm guns in single mounts, 0.01lbs / 0.01kg shells, 1916 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 102 lbs / 46 kg
Shells per gun, main battery: 150
6 - 19.7" / 500 mm above water torpedoes
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm - -
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 32,329 shp / 24,117 Kw = 32.90 kts
Trial Speed = 33.97 kts
Range 7,000nm at 10.00 kts
Bunker at max displacement = 233 tons
Complement:
99 - 129
Cost:
£0.228 million / $0.910 million
Distribution of weights at normal displacement:
Armament: 14 tons, 1.2 %
Armour: 8 tons, 0.7 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 8 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 661 tons, 56.9 %
Hull, fittings & equipment: 306 tons, 26.3 %
Fuel, ammunition & stores: 162 tons, 13.9 %
Miscellaneous weights: 12 tons, 1.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
254 lbs / 115 Kg = 7.2 x 4.1 " / 105 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.25
Metacentric height 1.0 ft / 0.3 m
Roll period: 11.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.18
Seaboat quality (Average = 1.00): 0.88
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.485
Length to Beam Ratio: 12.00 : 1
'Natural speed' for length: 17.88 kts
Power going to wave formation at top speed: 69 %
Trim (Max stability = 0, Max steadiness = 100): 79
Bow angle (Positive = bow angles forward): 14.00 degrees
Stern overhang: -6.56 ft / -2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 16.40 ft / 5.00 m
- Forecastle (20 %): 16.40 ft / 5.00 m
- Mid (50 %): 16.40 ft / 5.00 m (8.20 ft / 2.50 m aft of break)
- Quarterdeck (15 %): 8.20 ft / 2.50 m
- Stern: 8.20 ft / 2.50 m
- Average freeboard: 12.30 ft / 3.75 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 193.7 %
- Above water (accommodation/working, high = better): 74.0 %
Waterplane Area: 5,598 Square feet or 520 Square metres
Displacement factor (Displacement / loading): 46 %
Structure weight / hull surface area: 26 lbs/sq ft or 129 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.53
- Overall: 0.55
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
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather
Quote from: Sachmle on April 18, 2009, 08:41:41 PM
With the need for a fast torpedo craft with enough range to accompany the HSF the following design was drafted. While under gunned compared to the GTB 1912 class, the higher speed is considered more important for making successful torpedo attacks on newer, faster enemy vessels. Combining new turbines and deleting 1 10cm gun yeilded a 3.89 kt speed increase with the same range as the GTB 1912 class
GTB-1916, Deutscher Kaiserreich Großestorpedobooten laid down 1916
Very nice ship for its purpose. Not much more then that to say. :)
What is the range at top speed?
EDIT: But I suspect one could get a bit more speed out of the ship at that tonnage... ;)
QuoteWith the need for a fast torpedo craft with enough range to accompany the HSF the following design was drafted. While under gunned compared to the GTB 1912 class, the higher speed is considered more important for making successful torpedo attacks on newer, faster enemy vessels. Combining new turbines and deleting 1 10cm gun yeilded a 3.89 kt speed increase with the same range as the GTB 1912 class
Good choice & well balanced DD
;)
Well Korpen, here is the "ALL SPEED" version. Almost no firepower, but pretty dang fast.
GTB-1916, Deutscher Kaiserreich Großestorpedobooten laid down 1916
Displacement:
1,000 t light; 1,028 t standard; 1,157 t normal; 1,261 t full load
Dimensions: Length overall / water x beam x draught
319.07 ft / 314.96 ft x 26.25 ft x 10.10 ft (normal load)
97.25 m / 96.00 m x 8.00 m x 3.08 m
Armament:
2 - 3.46" / 88.0 mm guns in single mounts, 22.05lbs / 10.00kg shells, 1916 Model
Quick firing guns in deck mounts
on centreline, all forward
2 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1916 Model
Anti-aircraft guns in deck mounts
on side, all forward
2 - 0.35" / 8.8 mm guns in single mounts, 0.02lbs / 0.01kg shells, 1916 Model
Machine guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 47 lbs / 21 kg
Shells per gun, main battery: 150
6 - 19.7" / 500 mm above water torpedoes
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 40,838 shp / 30,465 Kw = 34.67 kts
Trial Speed = 35.83 kts
Range 4,700nm at 12.00 kts
Bunker at max displacement = 233 tons
Complement:
98 - 128
Cost:
£0.228 million / $0.914 million
Distribution of weights at normal displacement:
Armament: 6 tons, 0.5 %
Machinery: 713 tons, 61.7 %
Hull, fittings & equipment: 269 tons, 23.3 %
Fuel, ammunition & stores: 157 tons, 13.5 %
Miscellaneous weights: 12 tons, 1.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
190 lbs / 86 Kg = 9.1 x 3.5 " / 88 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.20
Metacentric height 0.9 ft / 0.3 m
Roll period: 11.4 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0.07
Seaboat quality (Average = 1.00): 0.60
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.485
Length to Beam Ratio: 12.00 : 1
'Natural speed' for length: 17.75 kts
Power going to wave formation at top speed: 71 %
Trim (Max stability = 0, Max steadiness = 100): 87
Bow angle (Positive = bow angles forward): 14.40 degrees
Stern overhang: -3.28 ft / -1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 16.01 ft / 4.88 m
- Forecastle (20 %): 16.01 ft / 4.88 m
- Mid (35 %): 16.01 ft / 4.88 m (8.01 ft / 2.44 m aft of break)
- Quarterdeck (15 %): 8.01 ft / 2.44 m
- Stern: 8.01 ft / 2.44 m
- Average freeboard: 10.81 ft / 3.29 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 203.7 %
- Above water (accommodation/working, high = better): 58.3 %
Waterplane Area: 5,433 Square feet or 505 Square metres
Displacement factor (Displacement / loading): 37 %
Structure weight / hull surface area: 26 lbs/sq ft or 127 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.09
- Overall: 0.54
Hull space for machinery, storage, compartmentation is extremely poor
Room for accommodation and workspaces is cramped
Caution: Lacks seaworthiness - very limited seakeeping ability
Quote from: Sachmle on April 20, 2009, 07:08:50 AM
Well Korpen, here is the "ALL SPEED" version. Almost no firepower, but pretty dang fast.
Dimensions: Length overall / water x beam x draught
97.25 m / 96.00 m x 8.00 m x 3.08 m
Block coefficient: 0.485
The BC is kind of high for such a fast ship.
What would happen if you increased draught by 20cm?
I like the original; fast, yet with enough firepower to have a chance at fighting its way into torpedo range.
Well there is this one. I nice flush deck design w/ only 1kt less speed, but more range and more firepower.
Type 1916, Deutscher Kaiserreich Zerstörere laid down 1916
Displacement:
1,000 t light; 1,036 t standard; 1,228 t normal; 1,381 t full load
Dimensions: Length overall / water x beam x draught
314.95 ft / 308.96 ft x 29.86 ft x 10.50 ft (normal load)
96.00 m / 94.17 m x 9.10 m x 3.20 m
Armament:
4 - 4.13" / 105 mm guns in single mounts, 35.27lbs / 16.00kg shells, 1916 Model
Quick firing guns in deck mounts
on centreline, evenly spread
Aft Main mounts separated by engine room
2 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1916 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
2 - 0.30" / 7.7 mm guns in single mounts, 0.01lbs / 0.01kg shells, 1916 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 144 lbs / 65 kg
Shells per gun, main battery: 150
6 - 19.7" / 500 mm above water torpedoes
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 29,713 shp / 22,166 Kw = 31.85 kts
Trial Speed = 32.88 kts
Range 6,850nm at 12.00 kts
Bunker at max displacement = 345 tons
Complement:
103 - 134
Cost:
£0.236 million / $0.946 million
Distribution of weights at normal displacement:
Armament: 18 tons, 1.5 %
Machinery: 674 tons, 54.9 %
Hull, fittings & equipment: 295 tons, 24.1 %
Fuel, ammunition & stores: 228 tons, 18.6 %
Miscellaneous weights: 12 tons, 1.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
270 lbs / 123 Kg = 7.7 x 4.1 " / 105 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.29
Metacentric height 1.3 ft / 0.4 m
Roll period: 11.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.16
Seaboat quality (Average = 1.00): 0.79
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.444
Length to Beam Ratio: 10.35 : 1
'Natural speed' for length: 17.58 kts
Power going to wave formation at top speed: 69 %
Trim (Max stability = 0, Max steadiness = 100): 89
Bow angle (Positive = bow angles forward): 14.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 16.01 ft / 4.88 m
- Forecastle (20 %): 14.01 ft / 4.27 m
- Mid (35 %): 12.01 ft / 3.66 m
- Quarterdeck (15 %): 10.01 ft / 3.05 m
- Stern: 8.01 ft / 2.44 m
- Average freeboard: 11.77 ft / 3.59 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 189.4 %
- Above water (accommodation/working, high = better): 75.3 %
Waterplane Area: 5,854 Square feet or 544 Square metres
Displacement factor (Displacement / loading): 52 %
Structure weight / hull surface area: 28 lbs/sq ft or 134 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.24
- Overall: 0.54
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
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather
OR Tweeked slightly:
Type 1916, Deutscher Kaiserreich Zerstörere laid down 1916
Displacement:
1,000 t light; 1,037 t standard; 1,230 t normal; 1,385 t full load
Dimensions: Length overall / water x beam x draught
314.95 ft / 308.96 ft x 25.75 ft x 11.15 ft (normal load)
96.00 m / 94.17 m x 7.85 m x 3.40 m
Armament:
4 - 4.13" / 105 mm guns in single mounts, 35.27lbs / 16.00kg shells, 1916 Model
Quick firing guns in deck mounts
on centreline, evenly spread
Aft Main mounts separated by engine room
2 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1916 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
2 - 0.30" / 7.7 mm guns in single mounts, 0.01lbs / 0.01kg shells, 1916 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 144 lbs / 65 kg
Shells per gun, main battery: 150
6 - 19.7" / 500 mm above water torpedoes
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 30,475 shp / 22,735 Kw = 32.03 kts
Trial Speed = 33.07 kts
Range 6,850nm at 12.00 kts
Bunker at max displacement = 348 tons
Complement:
103 - 135
Cost:
£0.238 million / $0.952 million
Distribution of weights at normal displacement:
Armament: 18 tons, 1.5 %
Machinery: 680 tons, 55.3 %
Hull, fittings & equipment: 290 tons, 23.6 %
Fuel, ammunition & stores: 230 tons, 18.7 %
Miscellaneous weights: 12 tons, 1.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
248 lbs / 112 Kg = 7.0 x 4.1 " / 105 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.22
Metacentric height 0.9 ft / 0.3 m
Roll period: 11.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.27
Seaboat quality (Average = 1.00): 0.87
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.485
Length to Beam Ratio: 12.00 : 1
'Natural speed' for length: 17.58 kts
Power going to wave formation at top speed: 68 %
Trim (Max stability = 0, Max steadiness = 100): 81
Bow angle (Positive = bow angles forward): 14.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 16.01 ft / 4.88 m
- Forecastle (20 %): 14.01 ft / 4.27 m
- Mid (35 %): 12.01 ft / 3.66 m
- Quarterdeck (15 %): 10.01 ft / 3.05 m
- Stern: 8.01 ft / 2.44 m
- Average freeboard: 11.77 ft / 3.59 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 190.7 %
- Above water (accommodation/working, high = better): 60.3 %
Waterplane Area: 5,230 Square feet or 486 Square metres
Displacement factor (Displacement / loading): 51 %
Structure weight / hull surface area: 26 lbs/sq ft or 127 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.52
- Overall: 0.55
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
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather
IMO,
- 1381tfl is better balanced
- Test with a lower BC & a taller hull.
;)
I'm content w/ the hull height, the seakeeping is decent for a DD and any more freeboard would cost speed or range. As to the 1385tfl one, I like it better...same firepower, more speed and BETTER seakeeping to boot. Either way I'm laying down 10 (yes 10!) in 2/16.
If you decrease the BC, you have better seakeeping - better for the crew to work in heavy sea & better performances in actions.
;)
Quote from: Jefgte on April 21, 2009, 04:24:22 PM
If you decrease the BC, you have better seakeeping - better for the crew to work in heavy sea & better performances in actions.
;)
How about this?
Type 1916v3, Deutscher Kaiserreich Zerstörere laid down 1916
Displacement:
1,000 t light; 1,036 t standard; 1,219 t normal; 1,365 t full load
Dimensions: Length overall / water x beam x draught
351.88 ft / 347.77 ft x 29.53 ft x 10.33 ft (normal load)
107.25 m / 106.00 m x 9.00 m x 3.15 m
Armament:
4 - 4.13" / 105 mm guns in single mounts, 35.27lbs / 16.00kg shells, 1916 Model
Quick firing guns in deck mounts
on centreline, evenly spread
Aft Main mounts separated by engine room
2 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1916 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
2 - 0.30" / 7.7 mm guns in single mounts, 0.02lbs / 0.01kg shells, 1916 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 144 lbs / 65 kg
Shells per gun, main battery: 150
6 - 19.7" / 500 mm above water torpedoes
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.20" / 5 mm - -
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 27,076 shp / 20,199 Kw = 32.05 kts
Trial Speed = 33.05 kts
Range 6,450nm at 12.00 kts
Bunker at max displacement = 329 tons
Complement:
103 - 134
Cost:
£0.231 million / $0.925 million
Distribution of weights at normal displacement:
Armament: 18 tons, 1.5 %
Armour: 2 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 2 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 651 tons, 53.4 %
Hull, fittings & equipment: 317 tons, 26.0 %
Fuel, ammunition & stores: 219 tons, 18.0 %
Miscellaneous weights: 12 tons, 1.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
318 lbs / 144 Kg = 9.0 x 4.1 " / 105 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.51
Metacentric height 1.6 ft / 0.5 m
Roll period: 9.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.15
Seaboat quality (Average = 1.00): 1.03
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.402
Length to Beam Ratio: 11.78 : 1
'Natural speed' for length: 18.65 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 68
Bow angle (Positive = bow angles forward): 14.40 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 16.01 ft / 4.88 m
- Forecastle (20 %): 14.01 ft / 4.27 m
- Mid (35 %): 12.01 ft / 3.66 m
- Quarterdeck (15 %): 10.01 ft / 3.05 m
- Stern: 8.01 ft / 2.44 m
- Average freeboard: 11.77 ft / 3.59 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 184.7 %
- Above water (accommodation/working, high = better): 86.7 %
Waterplane Area: 6,328 Square feet or 588 Square metres
Displacement factor (Displacement / loading): 56 %
Structure weight / hull surface area: 27 lbs/sq ft or 131 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.06
- Overall: 0.54
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
5mm 'armor' is weathershield for the gun crews only. It probably wouldn't stop a rifle round.
The main guns are a bit light to my taste, but for the rest, it looks good.
Well balanced.
;)
Quote from: maddox on April 21, 2009, 10:53:09 PM
The main guns are a bit light to my taste, but for the rest, it looks good.
Well I tried to put 15cm guns on a DD once and everyone said it was to heavy and the ship to lively for 45kg shell handling. Since I don't currently have anything inbetween 10cm and 15cm I'm stuck w/ this for now. The next generation (circa 1919-20) will have 12-13cm guns and hopefully be 34+kts
Same problem as France then, nothing between the 105 and the 140mm.
Quote from: maddox on April 22, 2009, 10:39:27 PM
Same problem as France then, nothing between the 105 and the 140mm.
Tee-hee - makes me feel smug over developing 4,5"/50lbs and 5,3"/75 lbs guns :D
However, there is NOTHING wrong with c.4"/35lbs guns on destroyers ...
Borys
Four inch was pretty much the historical standard of the time; personally, I'm happy with them as TB/DD main guns for now.
105mm guns should still be just fine (IMHO). Something along the lines of 120mm will be worthwhile in the future, so I'd suggest going ahead and developing it or buying it, etc. but for this design, I think the 105's are plenty.
To me, it's always a better choice to mount enough guns, even of lesser caliber, than accepting only say 2 of a larger caliber. I just don't think you'd hit anything with the smaller numbers (never mind rate of fire concerns, etc.)
When refit time comes (It's actually due 1917), I'm going to be rearming my older destroyers from single 150s to 100 twins.
Might reengine the 1909-drive boats, haven't calculated that yet.
Completely forgot to post the actual DD being laid down, with all the gun size talk. Anyway, here it is:
GTB-1916, Deutscher Kaiserreich Großestorpedobooten laid down 1916
Displacement:
1,000 t light; 1,032 t standard; 1,161 t normal; 1,265 t full load
Dimensions: Length overall / water x beam x draught
323.64 ft / 319.55 ft x 26.64 ft x 9.84 ft (normal load)
98.65 m / 97.40 m x 8.12 m x 3.00 m
Armament:
3 - 4.13" / 105 mm guns in single mounts, 33.07lbs / 15.00kg shells, 1916 Model
Quick firing guns in deck mounts
on centreline, evenly spread
Aft Main mounts separated by engine room
2 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1916 Model
Anti-aircraft guns in deck mounts
on side, all amidships
2 - 0.30" / 7.7 mm guns in single mounts, 0.01lbs / 0.00kg shells, 1916 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 102 lbs / 46 kg
Shells per gun, main battery: 150
6 - 19.7" / 500 mm above water torpedoes
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.79" / 20 mm - -
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 32,000 shp / 23,872 Kw = 32.83 kts
Trial Speed = 33.89 kts
Range 7,000nm at 10.00 kts
Bunker at max displacement = 233 tons
Complement:
99 - 129
Cost:
£0.227 million / $0.907 million
Distribution of weights at normal displacement:
Armament: 14 tons, 1.2 %
Armour: 5 tons, 0.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 5 tons, 0.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 658 tons, 56.7 %
Hull, fittings & equipment: 305 tons, 26.3 %
Fuel, ammunition & stores: 161 tons, 13.9 %
Miscellaneous weights: 17 tons, 1.5 %
- 12t = 6 2t 50cm Torpedoes
- 5t = 15 DCs plus rail
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
254 lbs / 115 Kg = 7.2 x 4.1 " / 105 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.24
Metacentric height 1.0 ft / 0.3 m
Roll period: 11.1 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.18
Seaboat quality (Average = 1.00): 0.89
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.485
Length to Beam Ratio: 12.00 : 1
'Natural speed' for length: 17.88 kts
Power going to wave formation at top speed: 69 %
Trim (Max stability = 0, Max steadiness = 100): 79
Bow angle (Positive = bow angles forward): 14.00 degrees
Stern overhang: -6.56 ft / -2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 16.40 ft / 5.00 m
- Forecastle (20 %): 16.40 ft / 5.00 m
- Mid (50 %): 16.40 ft / 5.00 m (8.20 ft / 2.50 m aft of break)
- Quarterdeck (15 %): 8.20 ft / 2.50 m
- Stern: 8.20 ft / 2.50 m
- Average freeboard: 12.30 ft / 3.75 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 193.5 %
- Above water (accommodation/working, high = better): 74.0 %
Waterplane Area: 5,596 Square feet or 520 Square metres
Displacement factor (Displacement / loading): 46 %
Structure weight / hull surface area: 26 lbs/sq ft or 129 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.53
- Overall: 0.55
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
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather
Looks good.
Enormous range!
Borys
bah! the new 1500t CSA "Scouts" will do 7000 nm at 12 knots. :P
Quote from: Borys on June 17, 2009, 02:23:41 PM
Looks good.
Enormous range!
Borys
Quote from: Guinness on June 17, 2009, 02:39:32 PM
bah! the new 1500t CSA "Scouts" will do 7000 nm at 12 knots. :P
Good, you've both mastered SARCASM well. ;D
Yes, it's only 291nm @ full speed. I had to sacrifice something.