First up a TB destroyer, simple as that.
New Switzerland Light Cruiser laid down 1905 (Engine 1909)
Displacement:
604 t light; 630 t standard; 689 t normal; 736 t full load
Dimensions: Length overall / water x beam x draught
300.00 ft / 300.00 ft x 30.00 ft x 5.70 ft (normal load)
91.44 m / 91.44 m x 9.14 m x 1.74 m
Armament:
5 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1905 Model
Quick firing guns in deck mounts
on centreline, evenly spread, 3 raised mounts
4 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1905 Model
Quick firing guns in deck mounts
on side, all amidships
4 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.88kg shells, 1905 Model
Quick firing guns in deck mounts
on side, evenly spread, all raised mounts
4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1905 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 130 lbs / 59 kg
Shells per gun, main battery: 150
4 - 14.0" / 355.6 mm above water torpedoes
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm - -
- Armour deck: 1.00" / 25 mm, Conning tower: 2.00" / 51 mm
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 7,925 shp / 5,912 Kw = 25.00 kts
Range 3,000nm at 10.00 kts
Bunker at max displacement = 105 tons
Complement:
66 - 87
Cost:
£0.072 million / $0.289 million
Distribution of weights at normal displacement:
Armament: 16 tons, 2.4 %
Armour: 119 tons, 17.3 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 8 tons, 1.1 %
- Armour Deck: 108 tons, 15.7 %
- Conning Tower: 3 tons, 0.5 %
Machinery: 267 tons, 38.8 %
Hull, fittings & equipment: 196 tons, 28.5 %
Fuel, ammunition & stores: 85 tons, 12.3 %
Miscellaneous weights: 5 tons, 0.7 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
353 lbs / 160 Kg = 26.1 x 3.0 " / 76 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.44
Metacentric height 1.5 ft / 0.5 m
Roll period: 10.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.16
Seaboat quality (Average = 1.00): 1.05
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.470
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 17.32 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 66
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 15.00 ft / 4.57 m
- Forecastle (30 %): 10.00 ft / 3.05 m
- Mid (40 %): 10.00 ft / 3.05 m
- Quarterdeck (15 %): 10.00 ft / 3.05 m
- Stern: 10.00 ft / 3.05 m
- Average freeboard: 10.60 ft / 3.23 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 144.7 %
- Above water (accommodation/working, high = better): 145.6 %
Waterplane Area: 5,838 Square feet or 542 Square metres
Displacement factor (Displacement / loading): 71 %
Structure weight / hull surface area: 22 lbs/sq ft or 109 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 0.76
- Overall: 0.52
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
***
A gunboat for shore support.
New Switzerland Gunboat laid down 1905 (Engine 1909)
Displacement:
534 t light; 584 t standard; 641 t normal; 686 t full load
Dimensions: Length overall / water x beam x draught
300.00 ft / 300.00 ft x 30.00 ft x 5.30 ft (normal load)
91.44 m / 91.44 m x 9.14 m x 1.62 m
Armament:
2 - 8.00" / 203 mm guns in single mounts, 256.00lbs / 116.12kg shells, 1905 Model
Breech loading guns in deck mounts
on centreline, evenly spread
8 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1905 Model
Quick firing guns in deck mounts
on side, all amidships
4 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.89kg shells, 1905 Model
Quick firing guns in deck mounts
on side, evenly spread, all raised mounts
4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1905 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 628 lbs / 285 kg
Shells per gun, main battery: 100
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm - -
- Armour deck: 1.00" / 25 mm, Conning tower: 2.00" / 51 mm
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 3,840 shp / 2,864 Kw = 21.00 kts
Range 3,000nm at 10.00 kts
Bunker at max displacement = 102 tons
Complement:
63 - 82
Cost:
£0.100 million / $0.400 million
Distribution of weights at normal displacement:
Armament: 79 tons, 12.3 %
Armour: 121 tons, 18.9 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 10 tons, 1.5 %
- Armour Deck: 108 tons, 16.9 %
- Conning Tower: 3 tons, 0.5 %
Machinery: 109 tons, 17.0 %
Hull, fittings & equipment: 225 tons, 35.2 %
Fuel, ammunition & stores: 106 tons, 16.6 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
323 lbs / 147 Kg = 1.3 x 8.0 " / 203 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.52
Metacentric height 1.7 ft / 0.5 m
Roll period: 9.8 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.59
Seaboat quality (Average = 1.00): 1.28
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.470
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 17.32 kts
Power going to wave formation at top speed: 46 %
Trim (Max stability = 0, Max steadiness = 100): 55
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 14.00 ft / 4.27 m
- Forecastle (30 %): 9.00 ft / 2.74 m
- Mid (40 %): 9.00 ft / 2.74 m
- Quarterdeck (15 %): 9.00 ft / 2.74 m
- Stern: 9.00 ft / 2.74 m
- Average freeboard: 9.60 ft / 2.93 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 146.1 %
- Above water (accommodation/working, high = better): 158.9 %
Waterplane Area: 5,838 Square feet or 542 Square metres
Displacement factor (Displacement / loading): 58 %
Structure weight / hull surface area: 27 lbs/sq ft or 133 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 0.74
- Overall: 0.52
Caution: Hull subject to strain in open-sea
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
Good seaboat, rides out heavy weather easily
Doesn't make sense to go with all-oil firing on these ships - you continue to have (as far as I know) no secure sources of oil. They should be at least 50/50, so you can make use of whatever fuel happens to be handy.
Both types carry entirely too many guns for their size - despite what the SS reports may say.
True. Never bet on winning a war you just started and then plan to use captured good for all your new products. Especially when it is not going according to plan within two months.
not ... enough .... deckspace ...
and the second design is just wrong - the 8 inchers with mounts should weight some 100 tons
SS2 does not take deck mount weight correctly. Try to sim the same ship in SS3 and you'll see the difference.
Hmm, gains only 10 tons going 50/50 so will do.
As for deckspace my other planned cruisers have 2x6" and 4x4" on just 20ft longer, 2ft wider. Those are 3" guns which require less space. There is plenty of deck space above. Also the first design has 14" torpedoes not the bigger 18". Basiclly the more guns the better.
http://www.navalism.org/index.php?topic=1082.0
As for the second design, the Germans stuffed a 12" gun on an even smaller ship.
http://www.navalism.org/index.php?topic=860.0
That was based on a historical Italian WW1-era boat...that was just simmable with some almost-crippling compromises.
I agree on the deckspace issue. The first should be cut to just the 5x3" and the second lose all its 3". I wonder if there's really room for 21-knot machinery in that one as well.
Quick and dirty drawings of both ships. The first one is perfectly viable in terms of deckspace, the second one does have too many 3", and might have problems with the 8" guns.
(http://i2.photobucket.com/albums/y22/ReneJr/TBdestroyer.gif)
Foxy: Find me one ship of similar characteristics: nine guns, 25 knots, and four torpedoes on 600 t. Then I'll agree it's viable.
The notion that the ship has "excellent" room for accommodation and working space is crazy.
Closest I can find is the USS Paulding class, 5x3", 6x18" TT, 29.5kts, 800 tons. Engine weight accounts for 300 of those extra tons.
I don't think very many ships where designed for the expressed purpose of blasting huge numbers of torpedo boats in mine field waters. Then I don't believe the 'Excellent' label either, that's mainly a function of torpedoes vs dimensions.
http://www.wesworld.jk-clan.de/thread.php?threadid=1872&sid=91654f436c26c96cdc8ad913695eb293
How's this (instead of #2)? A simple gunboat with a light 8" gun foward. Same hull as the MPs.
New Switzerland Gunboat laid down 1908 (Engine 1909)
Displacement:
241 t light; 266 t standard; 305 t normal; 337 t full load
Dimensions: Length overall / water x beam x draught
220.00 ft / 220.00 ft x 22.00 ft x 4.70 ft (normal load)
67.06 m / 67.06 m x 6.71 m x 1.43 m
Armament:
1 - 8.00" / 203 mm guns in single mounts, 256.00lbs / 116.12kg shells, 1908 Model
Breech loading gun in deck mount
on centreline forward
1 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1908 Model
Quick firing gun in deck mount
on centreline aft
4 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.89kg shells, 1908 Model
Quick firing guns in deck mounts
on side, evenly spread
4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1908 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 296 lbs / 134 kg
Shells per gun, main battery: 110
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm - -
- Conning tower: 2.00" / 51 mm
Machinery:
Coal and oil fired boilers, steam turbines,
Direct drive, 1 shaft, 2,675 shp / 1,996 Kw = 21.00 kts
Range 3,000nm at 10.00 kts
Bunker at max displacement = 72 tons (50% coal)
Complement:
36 - 47
Cost:
£0.050 million / $0.199 million
Distribution of weights at normal displacement:
Armament: 37 tons, 12.1 %
Armour: 7 tons, 2.3 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 5 tons, 1.6 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 2 tons, 0.6 %
Machinery: 74 tons, 24.2 %
Hull, fittings & equipment: 113 tons, 36.9 %
Fuel, ammunition & stores: 65 tons, 21.3 %
Miscellaneous weights: 10 tons, 3.3 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
119 lbs / 54 Kg = 0.5 x 8.0 " / 203 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.49
Metacentric height 1.0 ft / 0.3 m
Roll period: 9.1 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.79
Seaboat quality (Average = 1.00): 1.07
Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.470
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 14.83 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 47
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 9.00 ft / 2.74 m
- Forecastle (20 %): 9.00 ft / 2.74 m
- Mid (35 %): 9.00 ft / 2.74 m
- Quarterdeck (20 %): 5.00 ft / 1.52 m (9.00 ft / 2.74 m before break)
- Stern: 5.00 ft / 1.52 m
- Average freeboard: 8.20 ft / 2.50 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 171.8 %
- Above water (accommodation/working, high = better): 142.9 %
Waterplane Area: 3,002 Square feet or 279 Square metres
Displacement factor (Displacement / loading): 54 %
Structure weight / hull surface area: 23 lbs/sq ft or 111 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.05
- Overall: 0.54
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Unnecessarily fast and long-legged for a coastal bombardment vessel. She's not going to outrun a lot of things that can kill her, and with a freeboard so low, she's not going on extended open-ocean cruises.
The deck space doesn't immediately bring tears to my eyes, so that's a start.
Speed is neccesary as Sulu Sea showed.
On second thought the drawing for #2 looked pathetic so #3
CS Strenght up to 0.75, less guns.
New Switzerland Gunboat laid down 1905 (Engine 1909)
Displacement:
590 t light; 644 t standard; 710 t normal; 763 t full load
Dimensions: Length overall / water x beam x draught
270.00 ft / 270.00 ft x 27.00 ft x 7.10 ft (normal load)
82.30 m / 82.30 m x 8.23 m x 2.16 m
Armament:
2 - 8.00" / 203 mm guns in single mounts, 250.00lbs / 113.40kg shells, 1905 Model
Breech loading guns in deck mounts
on centreline, evenly spread
4 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1905 Model
Quick firing guns in deck mounts
on side, all amidships
4 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.88kg shells, 1905 Model
Quick firing guns in deck mounts
on side, evenly spread, all raised mounts
4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1905 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 636 lbs / 289 kg
Shells per gun, main battery: 105
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm - -
- Armour deck: 1.00" / 25 mm, Conning tower: 2.00" / 51 mm
Machinery:
Coal and oil fired boilers, steam turbines,
Direct drive, 1 shaft, 4,144 shp / 3,091 Kw = 21.00 kts
Range 3,000nm at 10.00 kts
Bunker at max displacement = 119 tons (50% coal)
Complement:
68 - 89
Cost:
£0.107 million / $0.428 million
Distribution of weights at normal displacement:
Armament: 81 tons, 11.4 %
Armour: 98 tons, 13.8 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 10 tons, 1.4 %
- Armour Deck: 85 tons, 11.9 %
- Conning Tower: 3 tons, 0.5 %
Machinery: 131 tons, 18.4 %
Hull, fittings & equipment: 276 tons, 38.9 %
Fuel, ammunition & stores: 120 tons, 16.9 %
Miscellaneous weights: 4 tons, 0.6 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
386 lbs / 175 Kg = 1.5 x 8.0 " / 203 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.38
Metacentric height 1.2 ft / 0.4 m
Roll period: 10.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.78
Seaboat quality (Average = 1.00): 1.20
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.480
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 16.43 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 14.00 ft / 4.27 m
- Forecastle (31 %): 9.00 ft / 2.74 m
- Mid (40 %): 9.00 ft / 2.74 m
- Quarterdeck (15 %): 7.00 ft / 2.13 m
- Stern: 7.00 ft / 2.13 m
- Average freeboard: 8.87 ft / 2.70 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 145.2 %
- Above water (accommodation/working, high = better): 104.5 %
Waterplane Area: 4,569 Square feet or 425 Square metres
Displacement factor (Displacement / loading): 62 %
Structure weight / hull surface area: 38 lbs/sq ft or 188 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.75
- Longitudinal: 1.16
- Overall: 0.78
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
Quote from: Desertfox on July 03, 2007, 09:45:06 AM
How's this (instead of #2)? A simple gunboat with a light 8" gun foward. Same hull as the MPs.
What's the point of a 21kts gun barge?
The 20cm gun is useless in a sea battle (with a rof of at best one round per two minutes), and it just make her more expensive then necessary.
And the ships will be horribly vulnerable with several tons of exposed cordite on deck.
Well a Coastal battleship of any type would suffer if they got caught like in the Sulu Sea. They were engaged in a job they were not suited. A coastal battleship is suppose to be a defensive warship, not a patrol boat in hostile waters. Blockade ship maybe. And in the case you stated, a speed of 17 knots would have been enough to slowly get away.
A Gunboat of this type would be useful in harbor defense, maybe riverine duty, and bombardment, after the enemy fleet has been neutralized. She would not make a good combatant in the age of dreadnoughts. She would also make a lousy cruiser since she has too few powerful guns to make a differance against most other cruisers. Sure it is possible to defeat an opponent with this vessel, it is just unlikely. (I once was involved in a game where I was using the historical Chinese cruisers from the Sino-Japanese War...very small, only three or four lighter guns. In a night action in a harbor, they actually I engaged five Russian and American cruisers and effectively drove them off (loosing two of by four ships) by hitting them at close range and getting lucky with criticals the entire game. The four ships I had were the worst ships in the game fighting the cream of the Russian protected cruisers and some American armored cruisers.)
Well I can't ask alot of a 600 ton ship, and 21kts allow it to run away from BBs, CBs, and older ACs. Also makes it useful as a Blockade ship. What can I gain by reducing speed? Not much.
Another one, this one a dedicated minelayer as my MPs are to busy as minesweepers right now.
NSS Lake Eyre, New Switzerland Minelayer laid down 1908 (Engine 1909)
Displacement:
1,770 t light; 1,862 t standard; 2,100 t normal; 2,291 t full load
Dimensions: Length overall / water x beam x draught
350.00 ft / 350.00 ft x 40.00 ft x 10.50 ft (normal load)
106.68 m / 106.68 m x 12.19 m x 3.20 m
Armament:
4 - 6.00" / 152 mm guns (2x2 guns), 108.00lbs / 48.99kg shells, 1908 Model
Breech loading guns in deck mounts with hoists
on centreline, evenly spread
4 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1908 Model
Breech loading guns in deck mounts
on side, evenly spread
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.89kg shells, 1908 Model
Quick firing guns in deck mounts
on side, evenly spread
4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1908 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 568 lbs / 258 kg
Shells per gun, main battery: 147
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm - -
- Armour deck: 1.50" / 38 mm, Conning tower: 3.00" / 76 mm
Machinery:
Coal and oil fired boilers, steam turbines,
Direct drive, 2 shafts, 7,564 shp / 5,643 Kw = 21.00 kts
Range 5,700nm at 10.00 kts
Bunker at max displacement = 429 tons (50% coal)
Complement:
154 - 201
Cost:
£0.172 million / $0.688 million
Distribution of weights at normal displacement:
Armament: 71 tons, 3.4 %
Armour: 281 tons, 13.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 12 tons, 0.6 %
- Armour Deck: 259 tons, 12.3 %
- Conning Tower: 11 tons, 0.5 %
Machinery: 360 tons, 17.2 %
Hull, fittings & equipment: 837 tons, 39.9 %
Fuel, ammunition & stores: 330 tons, 15.7 %
Miscellaneous weights: 220 tons, 10.5 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,812 lbs / 1,275 Kg = 26.0 x 6.0 " / 152 mm shells or 0.9 torpedoes
Stability (Unstable if below 1.00): 1.22
Metacentric height 1.8 ft / 0.6 m
Roll period: 12.4 seconds
Steadiness - As gun platform (Average = 50 %): 67 %
- Recoil effect (Restricted arc if above 1.00): 0.36
Seaboat quality (Average = 1.00): 1.16
Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.500
Length to Beam Ratio: 8.75 : 1
'Natural speed' for length: 18.71 kts
Power going to wave formation at top speed: 48 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 15.00 ft / 4.57 m
- Forecastle (20 %): 10.00 ft / 3.05 m
- Mid (50 %): 10.00 ft / 3.05 m
- Quarterdeck (25 %): 7.00 ft / 2.13 m (10.00 ft / 3.05 m before break)
- Stern: 7.00 ft / 2.13 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): 93.5 %
- Above water (accommodation/working, high = better): 115.4 %
Waterplane Area: 9,328 Square feet or 867 Square metres
Displacement factor (Displacement / loading): 117 %
Structure weight / hull surface area: 64 lbs/sq ft or 312 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 1.06
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Another Emergency Ship, this one replacing the TB Destroyer LC, as I can build 4 of these for every 1 LC. Designed to engage Chinese TBs so uses the 3" gun for its faster ROF. Uses a large quantity of wood in its construction and Army guns. Low draft allows it to hide from larger ships.
ED-1 , Hainan Emergency Destroyer laid down 1908 (Engine 1909)
Displacement:
151 t light; 160 t standard; 173 t normal; 183 t full load
Dimensions: Length overall / water x beam x draught
200.00 ft / 200.00 ft x 18.00 ft x 4.00 ft (normal load)
60.96 m / 60.96 m x 5.49 m x 1.22 m
Armament:
3 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1908 Model
Quick firing guns in deck mounts
on centreline ends, majority aft
4 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.89kg shells, 1908 Model
Quick firing guns in deck mounts
on side, evenly spread
8 - 0.50" / 12.7 mm guns (4x2 guns), 0.06lbs / 0.03kg shells, 1908 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 49 lbs / 22 kg
Shells per gun, main battery: 200
2 - 18.0" / 457.2 mm above water torpedoes
Machinery:
Coal and oil fired boilers, steam turbines,
Direct drive, 2 shafts, 3,818 shp / 2,848 Kw = 25.00 kts
Range 1,100nm at 10.00 kts
Bunker at max displacement = 22 tons (90% coal)
Complement:
23 - 30
Cost:
£0.022 million / $0.089 million
Distribution of weights at normal displacement:
Armament: 6 tons, 3.5 %
Machinery: 85 tons, 49.2 %
Hull, fittings & equipment: 58 tons, 33.5 %
Fuel, ammunition & stores: 22 tons, 12.7 %
Miscellaneous weights: 2 tons, 1.2 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
49 lbs / 22 Kg = 3.6 x 3.0 " / 76 mm shells or 0.1 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 0.5 ft / 0.1 m
Roll period: 11.1 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.35
Seaboat quality (Average = 1.00): 0.73
Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.420
Length to Beam Ratio: 11.11 : 1
'Natural speed' for length: 14.14 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 96
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 10.00 ft / 3.05 m
- Forecastle (20 %): 7.00 ft / 2.13 m
- Mid (50 %): 7.00 ft / 2.13 m
- Quarterdeck (25 %): 5.00 ft / 1.52 m (7.00 ft / 2.13 m before break)
- Stern: 5.00 ft / 1.52 m
- Average freeboard: 6.74 ft / 2.05 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 188.0 %
- Above water (accommodation/working, high = better): 93.5 %
Waterplane Area: 2,244 Square feet or 209 Square metres
Displacement factor (Displacement / loading): 40 %
Structure weight / hull surface area: 16 lbs/sq ft or 78 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 0.95
- Overall: 0.53
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather