I've got designs all over the place, but as they get finalized, I'll post them here. The first is a new 250t Coastal Torpedo Boat (not not a "Torpedo Ram" as this design is considered to small for that classification):
Persuaded by arguments made by the Naval Experimental Station about the value of small torpedo craft for use in near-shore waters for coast defense, the Navy committed to a production run of at least 10.
(http://i292.photobucket.com/albums/mm18/mmichael453/250t.png)
TB-01, CSA Coastal Torpedo Boat laid down 1913 (Engine 1912)
Displacement:
250 t light; 259 t standard; 309 t normal; 349 t full load
Dimensions: Length overall / water x beam x draught
224.00 ft / 216.00 ft x 18.00 ft x 6.63 ft (normal load)
68.27 m / 65.84 m x 5.49 m x 2.02 m
Armament:
2 - 3.50" / 88.9 mm guns in single mounts, 20.00lbs / 9.07kg shells, 1913 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread
2 - 1.00" / 25.4 mm guns (1x2 guns), 0.50lbs / 0.23kg shells, 1913 Model
Breech loading guns in deck mount
on centreline aft
Weight of broadside 41 lbs / 19 kg
Shells per gun, main battery: 112
3 - 20.0" / 508 mm above water torpedoes
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 8,500 shp / 6,341 Kw = 28.08 kts
Range 1,970nm at 15.00 kts
Bunker at max displacement = 90 tons
Complement:
36 - 47
Cost:
£0.039 million / $0.156 million
Distribution of weights at normal displacement:
Armament: 5 tons, 1.8 %
Machinery: 160 tons, 51.7 %
Hull, fittings & equipment: 81 tons, 26.1 %
Fuel, ammunition & stores: 59 tons, 19.1 %
Miscellaneous weights: 4 tons, 1.3 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
71 lbs / 32 Kg = 3.3 x 3.5 " / 89 mm shells or 0.1 torpedoes
Stability (Unstable if below 1.00): 1.20
Metacentric height 0.5 ft / 0.2 m
Roll period: 10.4 seconds
Steadiness - As gun platform (Average = 50 %): 56 %
- Recoil effect (Restricted arc if above 1.00): 0.20
Seaboat quality (Average = 1.00): 0.72
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.420
Length to Beam Ratio: 12.00 : 1
'Natural speed' for length: 14.70 kts
Power going to wave formation at top speed: 67 %
Trim (Max stability = 0, Max steadiness = 100): 78
Bow angle (Positive = bow angles forward): 30.25 degrees
Stern overhang: 1.00 ft / 0.30 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 12.00 ft / 3.66 m
- Forecastle (20 %): 9.25 ft / 2.82 m
- Mid (40 %): 7.00 ft / 2.13 m
- Quarterdeck (20 %): 5.75 ft / 1.75 m
- Stern: 5.75 ft / 1.75 m
- Average freeboard: 7.40 ft / 2.25 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 181.6 %
- Above water (accommodation/working, high = better): 46.2 %
Waterplane Area: 2,424 Square feet or 225 Square metres
Displacement factor (Displacement / loading): 43 %
Structure weight / hull surface area: 17 lbs/sq ft or 85 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.18
- Overall: 0.54
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is extremely poor
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather
Note: Forward 3.5" mount carries an unarmored spray shield.
Misc Weights: 3 torpedoes, 1 ton reserve
Range at max speed: 310 nm, 11 hours
Nice pic. She looks right for the time period.
The cross-sectional hull strength needs to be at least 0.50. Try knocking the range down by 10 or 20 nm and see if that gets her there.
Yeah, it drifted just a bit when I transposed from max speed range to cruise speed in SS. I updated above.
Thanks for the compliment. I spent a lot of time looking at old TBs while drawing this one.
Cute little bugger. :)
I think the drawing is verye nice, and the design is fine, very usefull for costal operations.
Purdy!
OOC: This proves the CSA *can* design ugly ships :)
The CSA has embarked on the design of a family of new fleet auxiliaries, built to similar hull designs and using similar (if very low powered) machinery. The first two types of ships from this family are a new Fleet Tender, and an Oiler.
One example of the Tender, and two Oilers have been ordered from French yards for construction in 1913.
(http://i292.photobucket.com/albums/mm18/mmichael453/tender.png)
One building.
CSS Mount Mitchell, CSA Torpedo Boat Tender laid down 1913 (Engine 1912)
Displacement:
3,900 t light; 4,043 t standard; 7,100 t normal; 9,546 t full load
Dimensions: Length overall / water x beam x draught
337.00 ft / 332.00 ft x 60.00 ft x 14.68 ft (normal load)
102.72 m / 101.19 m x 18.29 m x 4.47 m
Armament:
1 - 3.50" / 88.9 mm guns in single mounts, 20.00lbs / 9.07kg shells, 1913 Model
Breech loading gun in deck mount
on centreline aft
2 - 1.00" / 25.4 mm guns (1x2 guns), 0.50lbs / 0.23kg shells, 1913 Model
Breech loading guns in deck mount
on centreline forward
Weight of broadside 21 lbs / 10 kg
Shells per gun, main battery: 150
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm - -
3rd: 1.00" / 25 mm - -
Machinery:
Oil fired boilers, complex reciprocating steam engines,
Direct drive, 1 shaft, 1,900 ihp / 1,417 Kw = 11.31 kts
Range 44,100nm at 10.00 kts
Bunker at max displacement = 5,503 tons
Complement:
386 - 502
Cost:
£0.169 million / $0.676 million
Distribution of weights at normal displacement:
Armament: 3 tons, 0.0 %
Armour: 4 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 4 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 114 tons, 1.6 %
Hull, fittings & equipment: 1,752 tons, 24.7 %
Fuel, ammunition & stores: 3,201 tons, 45.1 %
Miscellaneous weights: 2,026 tons, 28.5 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
25,996 lbs / 11,792 Kg = 1,212.7 x 3.5 " / 89 mm shells or 4.5 torpedoes
Stability (Unstable if below 1.00): 1.34
Metacentric height 3.9 ft / 1.2 m
Roll period: 12.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00
Hull form characteristics:
Hull has raised forecastle, rise aft of midbreak
Block coefficient: 0.850
Length to Beam Ratio: 5.53 : 1
'Natural speed' for length: 18.22 kts
Power going to wave formation at top speed: 31 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 5.00 ft / 1.52 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.00 ft / 7.32 m
- Forecastle (10 %): 24.00 ft / 7.32 m (16.00 ft / 4.88 m aft of break)
- Mid (50 %): 16.00 ft / 4.88 m (24.00 ft / 7.32 m aft of break)
- Quarterdeck (25 %): 24.00 ft / 7.32 m
- Stern: 24.00 ft / 7.32 m
- Average freeboard: 20.80 ft / 6.34 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 37.9 %
- Above water (accommodation/working, high = better): 172.8 %
Waterplane Area: 18,361 Square feet or 1,706 Square metres
Displacement factor (Displacement / loading): 311 %
Structure weight / hull surface area: 68 lbs/sq ft or 331 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.51
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
Misc Weights:
Misc Weights:
120 t: 80 reload torpedoes for squadron
25t: Wireless
1000t: Accommodations for 500 TB crew
881t: Misc. Stores, workshops, spare parts, etc. etc.
----------------------------------------------------------------------------------
(http://i292.photobucket.com/albums/mm18/mmichael453/oiler.png)
Two building: CSS Poplar, and CSS Elm
CSS Poplar, CSA Oiler laid down 1913 (Engine 1912)
Displacement:
1,960 t light; 2,104 t standard; 7,100 t normal; 11,098 t full load
Dimensions: Length overall / water x beam x draught
337.00 ft / 332.00 ft x 60.00 ft x 14.68 ft (normal load)
102.72 m / 101.19 m x 18.29 m x 4.47 m
Armament:
1 - 3.50" / 88.9 mm guns in single mounts, 20.00lbs / 9.07kg shells, 1913 Model
Breech loading gun in deck mount
on centreline aft
2 - 1.00" / 25.4 mm guns (1x2 guns), 0.50lbs / 0.23kg shells, 1913 Model
Breech loading guns in deck mount
on centreline forward
Weight of broadside 21 lbs / 10 kg
Shells per gun, main battery: 150
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm - -
3rd: 1.00" / 25 mm - -
Machinery:
Oil fired boilers, complex reciprocating steam engines,
Direct drive, 1 shaft, 1,900 ihp / 1,417 Kw = 11.31 kts
Range 72,410nm at 10.00 kts
Bunker at max displacement = 8,994 tons
Complement:
386 - 502
Cost:
£0.095 million / $0.379 million
Distribution of weights at normal displacement:
Armament: 3 tons, 0.0 %
Armour: 4 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 4 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 114 tons, 1.6 %
Hull, fittings & equipment: 1,413 tons, 19.9 %
Fuel, ammunition & stores: 5,140 tons, 72.4 %
Miscellaneous weights: 425 tons, 6.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
63,908 lbs / 28,988 Kg = 2,981.1 x 3.5 " / 89 mm shells or 15.2 torpedoes
Stability (Unstable if below 1.00): 2.37
Metacentric height 8.7 ft / 2.7 m
Roll period: 8.5 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.72
Hull form characteristics:
Hull has raised forecastle, rise aft of midbreak
Block coefficient: 0.850
Length to Beam Ratio: 5.53 : 1
'Natural speed' for length: 18.22 kts
Power going to wave formation at top speed: 31 %
Trim (Max stability = 0, Max steadiness = 100): 41
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 5.00 ft / 1.52 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 16.00 ft / 4.88 m
- Forecastle (10 %): 16.00 ft / 4.88 m (8.00 ft / 2.44 m aft of break)
- Mid (70 %): 8.00 ft / 2.44 m (16.00 ft / 4.88 m aft of break)
- Quarterdeck (25 %): 16.00 ft / 4.88 m
- Stern: 16.00 ft / 4.88 m
- Average freeboard: 11.20 ft / 3.41 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 13.9 %
- Above water (accommodation/working, high = better): 78.1 %
Waterplane Area: 18,361 Square feet or 1,706 Square metres
Displacement factor (Displacement / loading): 1,000 %
Structure weight / hull surface area: 62 lbs/sq ft or 303 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 1.03
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is cramped
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
Misc Weights:
425t: Cargo, etc.
Fugly!
Why not...
But For the oilers
" Room for accommodation and workspaces is cramped"
Not cool
IMHO, 11.3kts is too short speed.
1900shp are perhaps too short in storm.
Jef ;)
Yet another new for 1913 design: the "C" Class Submarine:
Experiments with the A and B class coastal subs indicate potential for the submersible boat as an offensive as well as defensive weapon. With exploring such operations in mind, the Navy commissioned the design of a much larger boat, the C-Class. At least 5 will be acquired during 1913.
(http://i292.photobucket.com/albums/mm18/mmichael453/C-class.png)
Type-C Submarine
DISPLACEMENT:
750t Surfaced
955t Submerged
LENGTH:
205 ft. overall
159 ft. pressure hull
BEAM:
25 ft overall
25 ft. pressure hull
Draught (surfaced):
11 ft.
HEIGHT (overall, minus periscopes )
28.5 ft.
POWER
2800 hp (sf) (4x700 hp diesel engines)
1000 hp (sb)
SPEED (knots)
14 kts (sf)
6 kts (sb)
RANGE:
6000 n mi. @ 14 kts (sf)
70 n mi. @ 6 kts (sb)
TORPEDOES:
4 x 20 in. (508mm) bow tubes
2 x 20 in. (508mm) stern tubes
8 torpedoes
MINES:
No Mines Carried
GUNS:
1 x 3.5" firing 20lb. shell
1 x 1" MG firing 0.50lb. shell
CREW:
35 officers and men
MAX DEPTH:
150 ft
Quote from: Jefgte on August 19, 2008, 05:12:01 PM
Why not...
But For the oilers
" Room for accommodation and workspaces is cramped"
Not cool
IMHO, 11.3kts is too short speed.
1900shp are perhaps too short in storm.
Jef ;)
The top speed of these ships may well become an issue during future fleet operations, but the powers that be don't see much need for speeds in excess of 10 knots, espcially since the much larger and faster Tender/Oiler Ingals is already in service with operations with the main fleet in mind, and the larger, faster oiler Spruce is building. These ships are seen as "second line" auxiliaries, in other words.
As to the topspace issue: the Oiler is cramped. It's main job is carrying oil though, so there isn't too much concern about that. The crew will still live luxuriously compared to the other two ships posted in this thread ;)
OOC: These ships are designed to be a compromise, and a bit of an overreaction to Ingals and Spruce, which could be considered too large and over-engineered for their roles. I've simmed them both with a top speed closer to 16 knots in the same hull, which could be an innovation in the future.
Quote from: guinness on August 19, 2008, 06:50:03 PM
These ships are seen as "second line" auxiliaries, in other words.
Auxiliary auxiliaries then? ;D
That 250t TB is interesting, could be exactly what Egypt is looking for as the basic unit of the new fleet.
The first new fleet Torpedo Ram design in a few years is also the largest Torpedo Ram ever built. The TR-235 class is designed in response to larger, more heavily armed foreign designs that have appeared. TR-235 will also be the first Torpedo Ram to carry a short range Marconi set and depth charges as designed. The 4" gun, now firing the new 30 pound shell persists, despite proposals to arm her with the new 4.75" 50 pounder.
When she enters service, TR-235 will be the fastest ship in the Confederate fleet. 5 ships are planned for laying down in the 2nd half of 1913, with the intention of continuing series production of the design over the next few years.
The waterline rendering is depicted with a proposed new camouflage scheme for wartime use on Torpedo Rams.
(http://i292.photobucket.com/albums/mm18/mmichael453/1913TorpedoRamv1.png)
TRM-235, CSA Torpedo Ram laid down 1914 (Engine 1912)
Displacement:
1,000 t light; 1,038 t standard; 1,204 t normal; 1,336 t full load
Dimensions: Length overall / water x beam x draught
339.00 ft / 334.00 ft x 30.50 ft x 10.04 ft (normal load)
103.33 m / 101.80 m x 9.30 m x 3.06 m
Armament:
4 - 4.00" / 102 mm guns in single mounts, 30.00lbs / 13.61kg shells, 1914 Model
Quick firing guns in deck mounts
on centreline ends, evenly spread, 2 raised mounts - superfiring
4 - 1.00" / 25.4 mm guns (2x2 guns), 0.50lbs / 0.23kg shells, 1914 Model
Machine guns in deck mounts
on side, all amidships, all raised mounts - superfiring
1 - 1.50" / 38.1 mm guns in single mounts, 2.00lbs / 0.91kg shells, 1914 Model
Anti-aircraft gun in deck mount
on centreline aft, 1 raised gun
Weight of broadside 124 lbs / 56 kg
Shells per gun, main battery: 200
6 - 20.0" / 508 mm above water torpedoes
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm - -
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 26,000 shp / 19,396 Kw = 31.51 kts
Range 5,000nm at 12.00 kts
Bunker at max displacement = 298 tons
Complement:
101 - 132
Cost:
£0.177 million / $0.707 million
Distribution of weights at normal displacement:
Armament: 16 tons, 1.4 %
Armour: 9 tons, 0.7 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 9 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 643 tons, 53.4 %
Hull, fittings & equipment: 287 tons, 23.9 %
Fuel, ammunition & stores: 204 tons, 16.9 %
Miscellaneous weights: 45 tons, 3.7 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
261 lbs / 119 Kg = 8.2 x 4.0 " / 102 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.31
Metacentric height 1.4 ft / 0.4 m
Roll period: 11.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.13
Seaboat quality (Average = 1.00): 0.87
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.412
Length to Beam Ratio: 10.95 : 1
'Natural speed' for length: 18.28 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 81
Bow angle (Positive = bow angles forward): 13.70 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 20.50 ft / 6.25 m
- Forecastle (15 %): 17.75 ft / 5.41 m
- Mid (33 %): 16.00 ft / 4.88 m (8.00 ft / 2.44 m aft of break)
- Quarterdeck (10 %): 8.00 ft / 2.44 m
- Stern: 8.00 ft / 2.44 m
- Average freeboard: 11.23 ft / 3.42 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 187.1 %
- Above water (accommodation/working, high = better): 76.2 %
Waterplane Area: 6,316 Square feet or 587 Square metres
Displacement factor (Displacement / loading): 53 %
Structure weight / hull surface area: 26 lbs/sq ft or 128 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 0.90
- Overall: 0.53
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
Misc Weights:
25 tons: Fire control
6 tons: Torpedoes
4 tons: 12 depth charges (launched from stern racks)
10 tons: Reserve
Range at top speed: 11.9 hours, 375 nm
Range at 28.5 knots: 18.0 hours, 515 nm
Range at 15 knots: 2990 nm
Seakeeping at 28.5 knots: 1.08
Just being picky on the (excellent as usual) drawings.
The portholes on the forecastle should be more or less horizontal, not rising towards the stem - the weather deck should stay the same level afaik.
Yeah, I haven't been sure about that. I guess on flush deck designs, the weather deck rises with the deckline, but on raised forecastle designs it doesn't?
I straightened out the portholes and updated the picture above. Here's a comparison of the two:
(http://i292.photobucket.com/albums/mm18/mmichael453/portholescompared.png)
I've looked at lots of pictures of (mostly) RN destroyers, and it's really hard to tell if they (and therefore that deck) curve up with the forecastle at all. Of course most of these DDs are from WW2 too, so they might not necessarily be comparable.
Here's a link to one of the best (read highest resolution) photos I could find on-line:
http://upload.wikimedia.org/wikipedia/en/4/46/HMS_Kelvin.JPG (http://upload.wikimedia.org/wikipedia/en/4/46/HMS_Kelvin.JPG)
Those do seem largely straight though. I think the flare of the bow, especially when seen form a 3/4 view forward, is what's throwing me off. That and never having visited in person anything but American flush-decked DDs.
Nice drawing & well balanced DD
IMO,1930 look.
For 1914 LD, I prefer USN four pipes look.
Jef ;)
I do too, but Carthaginian had already established the trunked funnels as a design attribute for CSA Torpedo Rams, and while I considered deviating from that, I decided in the end not to. Many of the details, especially the forward superstructure, is based on the UK V&W class.
At any rate, here's a quick hack of a 3 funneled design, although now that I look at it, maybe 2 funnels would be better. I had to lose the 1" clipping/backup wireless receiver room I'd imagined was hanging out under the 1" MG platform.
I also suppose a compromise would be to move the single funnel top a bit further aft, and make it even bigger. Or maybe add a 3rd smaller funnel aft of the big one? Maybe 3 boiler rooms, the first two trunked into one funnel, the 3rd having it's own.
(http://i292.photobucket.com/albums/mm18/mmichael453/funnelscompared.png)
IMO, the 2nd funnel is not neccessary ...
Imagine the boilers room...
Jef ;)
Here's a two funnel version. I did some trunks for both funnels. In my minds eye, she'd have had 4 little funnels (much like a US Flush Decker), but the Confederate preference for some funnel trunking won out. I also ditched the enclosed FC position for an open position with a range finder. SS attached again for completeness. I think (hope) this looks more appropriate for the period.
(http://i292.photobucket.com/albums/mm18/mmichael453/1913TorpedoRamV2.png)
TRM-235, CSA Torpedo Ram laid down 1914 (Engine 1912)
Displacement:
1,000 t light; 1,038 t standard; 1,204 t normal; 1,336 t full load
Dimensions: Length overall / water x beam x draught
339.00 ft / 334.00 ft x 30.50 ft x 10.04 ft (normal load)
103.33 m / 101.80 m x 9.30 m x 3.06 m
Armament:
4 - 4.00" / 102 mm guns in single mounts, 30.00lbs / 13.61kg shells, 1914 Model
Quick firing guns in deck mounts
on centreline ends, evenly spread, 2 raised mounts - superfiring
4 - 1.00" / 25.4 mm guns (2x2 guns), 0.50lbs / 0.23kg shells, 1914 Model
Machine guns in deck mounts
on side, all amidships, all raised mounts - superfiring
1 - 1.50" / 38.1 mm guns in single mounts, 2.00lbs / 0.91kg shells, 1914 Model
Anti-aircraft gun in deck mount
on centreline aft, 1 raised gun
Weight of broadside 124 lbs / 56 kg
Shells per gun, main battery: 200
6 - 20.0" / 508 mm above water torpedoes
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm - -
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 26,000 shp / 19,396 Kw = 31.51 kts
Range 5,000nm at 12.00 kts
Bunker at max displacement = 298 tons
Complement:
101 - 132
Cost:
£0.177 million / $0.707 million
Distribution of weights at normal displacement:
Armament: 16 tons, 1.4 %
Armour: 9 tons, 0.7 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 9 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 643 tons, 53.4 %
Hull, fittings & equipment: 287 tons, 23.9 %
Fuel, ammunition & stores: 204 tons, 16.9 %
Miscellaneous weights: 45 tons, 3.7 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
261 lbs / 119 Kg = 8.2 x 4.0 " / 102 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.31
Metacentric height 1.4 ft / 0.4 m
Roll period: 11.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.13
Seaboat quality (Average = 1.00): 0.87
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.412
Length to Beam Ratio: 10.95 : 1
'Natural speed' for length: 18.28 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 81
Bow angle (Positive = bow angles forward): 13.70 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 20.50 ft / 6.25 m
- Forecastle (15 %): 17.75 ft / 5.41 m
- Mid (33 %): 16.00 ft / 4.88 m (8.00 ft / 2.44 m aft of break)
- Quarterdeck (10 %): 8.00 ft / 2.44 m
- Stern: 8.00 ft / 2.44 m
- Average freeboard: 11.23 ft / 3.42 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 187.1 %
- Above water (accommodation/working, high = better): 76.2 %
Waterplane Area: 6,316 Square feet or 587 Square metres
Displacement factor (Displacement / loading): 53 %
Structure weight / hull surface area: 26 lbs/sq ft or 128 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 0.90
- Overall: 0.53
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
Misc Weights:
25 tons: Fire control
6 tons: Torpedoes
4 tons: 12 depth charges (launched from stern racks)
10 tons: Reserve
Range at top speed: 11.9 hours, 375 nm
Range at 28.5 knots: 18.0 hours, 515 nm
Range at 15 knots: 2990 nm
Seakeeping at 28.5 knots: 1.08
I like it! Now that's the kind of destroyer Egypt could use.
Superb
I want them too for Peru ;)
Jef ;)
Try some German GTBs from german-navy.de or French ones from the ministry website.
On some there's some slight curving up but that stops further from the stem.
I just couldn't leave well enough alone, so I fiddled with it a little more. I dropped the 1.5" AA gun almost to the top of the after deck house (it just didn't look right all the way down on the deckhouse roof). I also shortened and lowered slightly the forward superstructure, and moved the 1" MGs to the bridge wings. Finally, I changed from steel to canvas surrounding the compass platform. I think all that combined with the open, rather spartan range finder position and the twin funnels helps a lot. You guys can tell me what you think. I've certainly got ample illustrations of possible future modernizations though! :)
Quote from: P3D on September 23, 2008, 05:32:41 PM
Try some German GTBs from german-navy.de or French ones from the ministry website.
On some there's some slight curving up but that stops further from the stem.
I tried it a bunch of different ways, but I could never get it to work right. Maybe if I worked at 1 pixel = 3" scale instead of 1 pixel = 6" scale. At any rate, I think it looks good with the straight portholes, and there is a certain optical illusion that lends one to believing they rise just a bit toward the stem.
(http://i292.photobucket.com/albums/mm18/mmichael453/1913TorpedoRam.png)
TRM-235, CSA Torpedo Ram laid down 1914 (Engine 1912)
Displacement:
1,000 t light; 1,038 t standard; 1,204 t normal; 1,336 t full load
Dimensions: Length overall / water x beam x draught
339.00 ft / 334.00 ft x 30.50 ft x 10.04 ft (normal load)
103.33 m / 101.80 m x 9.30 m x 3.06 m
Armament:
4 - 4.00" / 102 mm guns in single mounts, 30.00lbs / 13.61kg shells, 1914 Model
Quick firing guns in deck mounts
on centreline ends, evenly spread, 2 raised mounts - superfiring
4 - 1.00" / 25.4 mm guns (2x2 guns), 0.50lbs / 0.23kg shells, 1914 Model
Machine guns in deck mounts
on side, all forward, all raised mounts - superfiring
1 - 1.50" / 38.1 mm guns in single mounts, 2.00lbs / 0.91kg shells, 1914 Model
Anti-aircraft gun in deck mount
on centreline aft, 1 raised gun
Weight of broadside 124 lbs / 56 kg
Shells per gun, main battery: 200
6 - 20.0" / 508 mm above water torpedoes
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm - -
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 26,000 shp / 19,396 Kw = 31.51 kts
Range 5,000nm at 12.00 kts
Bunker at max displacement = 298 tons
Complement:
101 - 132
Cost:
£0.177 million / $0.707 million
Distribution of weights at normal displacement:
Armament: 16 tons, 1.4 %
Armour: 9 tons, 0.7 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 9 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 643 tons, 53.4 %
Hull, fittings & equipment: 287 tons, 23.9 %
Fuel, ammunition & stores: 204 tons, 16.9 %
Miscellaneous weights: 45 tons, 3.7 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
261 lbs / 119 Kg = 8.2 x 4.0 " / 102 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.31
Metacentric height 1.4 ft / 0.4 m
Roll period: 11.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.13
Seaboat quality (Average = 1.00): 0.87
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.412
Length to Beam Ratio: 10.95 : 1
'Natural speed' for length: 18.28 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 81
Bow angle (Positive = bow angles forward): 13.70 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 20.50 ft / 6.25 m
- Forecastle (15 %): 17.75 ft / 5.41 m
- Mid (33 %): 16.00 ft / 4.88 m (8.00 ft / 2.44 m aft of break)
- Quarterdeck (10 %): 8.00 ft / 2.44 m
- Stern: 8.00 ft / 2.44 m
- Average freeboard: 11.23 ft / 3.42 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 187.1 %
- Above water (accommodation/working, high = better): 76.2 %
Waterplane Area: 6,316 Square feet or 587 Square metres
Displacement factor (Displacement / loading): 53 %
Structure weight / hull surface area: 26 lbs/sq ft or 128 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 0.90
- Overall: 0.53
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
Misc Weights:
25 tons: Fire control
6 tons: Torpedoes
4 tons: 12 depth charges (launched from stern racks)
10 tons: Reserve
Range at top speed: 11.9 hours, 375 nm
Range at 28.5 knots: 18.0 hours, 515 nm
Range at 15 knots: 2990 nm
Seakeeping at 28.5 knots: 1.08