Original illustration by Carthaginian: http://i142.photobucket.com/albums/r114/Carthaginian/TR-200.png (http://i142.photobucket.com/albums/r114/Carthaginian/TR-200.png)
5 ships: DD-1 to DD-5
In late 1914, the CSA transferred 5 TR-200 class torpedo rams to the DRM:
TR-200, Confederate States of America Torpedo Ram laid down 1909
Displacement:
500 t light; 518 t standard; 554 t normal; 583 t full load
Dimensions: Length overall / water x beam x draught
230.00 ft / 220.00 ft x 20.00 ft x 9.00 ft (normal load)
70.11 m / 67.06 m x 6.10 m x 2.74 m
Armament:
2 - 4.00" / 102 mm guns in single mounts, 25.00lbs / 11.34kg shells, 1909 Model
Quick firing guns in deck mounts
on centreline ends, evenly spread, 1 raised mount
4 - 1.00" / 25.4 mm guns (2x2 guns), 0.50lbs / 0.23kg shells, 1909 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
2 - 1.00" / 25.4 mm guns (1x2 guns), 0.50lbs / 0.23kg shells, 1909 Model
Machine guns in deck mount
on centreline aft, all raised guns - superfiring
Weight of broadside 53 lbs / 24 kg
Shells per gun, main battery: 200
4 - 20.0" / 508 mm above water torpedoes
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.50" / 13 mm - -
2nd: 0.25" / 6 mm - -
3rd: 0.25" / 6 mm - -
- Conning tower: 0.50" / 13 mm
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 1 shaft, 12,000 shp / 8,952 Kw = 27.58 kts
Range 2,200nm at 10.00 kts
Bunker at max displacement = 65 tons
Complement:
56 - 74
Cost:
£0.064 million / $0.256 million
Distribution of weights at normal displacement:
Armament: 8 tons, 1.5 %
Armour: 3 tons, 0.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 2 tons, 0.4 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 1 tons, 0.1 %
Machinery: 281 tons, 50.8 %
Hull, fittings & equipment: 193 tons, 34.9 %
Fuel, ammunition & stores: 54 tons, 9.7 %
Miscellaneous weights: 14 tons, 2.5 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
166 lbs / 75 Kg = 5.2 x 4.0 " / 102 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 0.5 ft / 0.2 m
Roll period: 11.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.39
Seaboat quality (Average = 1.00): 1.43
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.490
Length to Beam Ratio: 11.00 : 1
'Natural speed' for length: 14.83 kts
Power going to wave formation at top speed: 70 %
Trim (Max stability = 0, Max steadiness = 100): 49
Bow angle (Positive = bow angles forward): 16.40 degrees
Stern overhang: 5.00 ft / 1.52 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 17.00 ft / 5.18 m
- Forecastle (20 %): 14.00 ft / 4.27 m
- Mid (50 %): 12.00 ft / 3.66 m
- Quarterdeck (15 %): 12.00 ft / 3.66 m
- Stern: 12.00 ft / 3.66 m
- Average freeboard: 12.94 ft / 3.94 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 178.4 %
- Above water (accommodation/working, high = better): 51.0 %
Waterplane Area: 2,787 Square feet or 259 Square metres
Displacement factor (Displacement / loading): 47 %
Structure weight / hull surface area: 22 lbs/sq ft or 109 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.51
- Longitudinal: 7.06
- Overall: 0.66
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
Good seaboat, rides out heavy weather easily