Intended as the light escorts for the Asfolath Battleships Range and Firepower erre Major Considerations on these ships. A Light Belted Cruiser due to her armaments and her thin armor compared to modern Belted Cruisers.
Named after Native Allied Nation.
(Designed by Tanthalas)
Klamath (originally named Forod Sul)
Modoc
Yaquina
Karok
Klamath, Rohan Light Cruiser laid down 1917 (Engine 1920)
Displacement:
6,000 t light; 6,260 t standard; 7,530 t normal; 8,546 t full load
Dimensions: Length overall / water x beam x draught
557.00 ft / 550.00 ft x 55.00 ft x 20.00 ft (normal load)
169.77 m / 167.64 m x 16.76 m x 6.10 m
Armament:
12 - 6.00" / 152 mm guns (6x2 guns), 108.00lbs / 48.99kg shells, 1917 Model
Quick firing guns in deck mounts with hoists
on centreline, evenly spread, 3 raised mounts
2 - 1.50" / 38.1 mm guns (1x2 guns), 1.69lbs / 0.77kg shells, 1917 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
4 - 1.50" / 38.1 mm guns (2x2 guns), 1.69lbs / 0.77kg shells, 1917 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 1,306 lbs / 592 kg
Shells per gun, main battery: 150
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.00" / 76 mm 385.00 ft / 117.35 m 10.00 ft / 3.05 m
Ends: Unarmoured
Main Belt covers 108 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm 1.00" / 25 mm 1.00" / 25 mm
2nd: 1.00" / 25 mm 0.50" / 13 mm -
3rd: 1.00" / 25 mm 0.50" / 13 mm -
- Armour deck: 1.00" / 25 mm, Conning tower: 3.00" / 76 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 54,673 shp / 40,786 Kw = 30.00 kts
Range 6,135nm at 19.00 kts
Bunker at max displacement = 2,286 tons
Complement:
403 - 525
Cost:
£1.118 million / $4.471 million
Distribution of weights at normal displacement:
Armament: 163 tons, 2.2 %
Armour: 921 tons, 12.2 %
- Belts: 473 tons, 6.3 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 72 tons, 1.0 %
- Armour Deck: 351 tons, 4.7 %
- Conning Tower: 25 tons, 0.3 %
Machinery: 1,912 tons, 25.4 %
Hull, fittings & equipment: 2,816 tons, 37.4 %
Fuel, ammunition & stores: 1,530 tons, 20.3 %
Miscellaneous weights: 188 tons, 2.5 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
8,262 lbs / 3,748 Kg = 76.5 x 6.0 " / 152 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.17
Metacentric height 2.7 ft / 0.8 m
Roll period: 14.0 seconds
Steadiness - As gun platform (Average = 50 %): 76 %
- Recoil effect (Restricted arc if above 1.00): 0.46
Seaboat quality (Average = 1.00): 1.17
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.436
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 23.45 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 65
Bow angle (Positive = bow angles forward): 19.30 degrees
Stern overhang: -4.50 ft / -1.37 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 20.00 ft / 6.10 m
- Forecastle (20 %): 20.00 ft / 6.10 m
- Mid (51 %): 20.00 ft / 6.10 m (12.00 ft / 3.66 m aft of break)
- Quarterdeck (10 %): 12.00 ft / 3.66 m
- Stern: 12.00 ft / 3.66 m
- Average freeboard: 16.08 ft / 4.90 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 102.1 %
- Above water (accommodation/working, high = better): 140.1 %
Waterplane Area: 19,077 Square feet or 1,772 Square metres
Displacement factor (Displacement / loading): 121 %
Structure weight / hull surface area: 92 lbs/sq ft or 449 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.26
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
188 tons Misc. Weight
100 tons FC
25 tons Radar
25 tons Marconi
12 tons Crew Comfort
25 tons Flying Boat X1
1 tons Capitans Quarters
Not intended as a criticism, but curious - what's the 3" armour intended to stop? Extreme-range heavy shells or close-range light shells?
- Laertes
(Is wondering if escorts need armour at all nowadays)
Destroyer gun fire from outside torpedo range. Ships like this are designed to kill destroyers before they can launch torpedoes, so they need to be protected from destroyer gunfire to do their job.