Protected Cruisers of the Mark

[Ithekro]

Protected Cruisers are named after mountains...of Middle Earth.

With the introduction of the 4.5 inch cannon, the new protected cruisers were probably much better than the previous classes.

Gundabad - laid down 1891 (scrapped 1916)
Celebdil - laid down 1891 (scrapped 1917)

Rohan Protected Cruiser laid down 1891

Displacement:
1,431 t light; 1,508 t standard; 2,060 t normal; 2,493 t full load

Dimensions: Length overall / water x beam x draught
220.00 ft / 220.00 ft x 31.00 ft x 21.00 ft (normal load)
67.06 m / 67.06 m x 9.45 m x 6.40 m

Armament:
2 - 4.50" / 114 mm guns in single mounts, 45.56lbs / 20.67kg shells, 1891 Model
Quick firing guns in deck mounts
on centreline ends, evenly spread
6 - 4.50" / 114 mm guns in single mounts, 45.56lbs / 20.67kg shells, 1891 Model
Quick firing guns in deck mounts
on side, evenly spread
3 - 0.75" / 19.1 mm guns in single mounts, 0.21lbs / 0.10kg shells, 1891 Model
Machine guns in deck mounts
on centreline, evenly spread, 1 raised mount
Weight of broadside 365 lbs / 166 kg
Shells per gun, main battery: 150

Armour:

- Armour deck: 1.00" / 25 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 1 shaft, 3,973 ihp / 2,964 Kw = 17.00 kts
Range 6,250nm at 11.50 kts (Bunkerage = 993 tons)

Complement:
152 - 198

Cost:
£0.190 million / $0.758 million

Distribution of weights at normal displacement:
Armament: 46 tons, 2.2 %
Armour: 84 tons, 4.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.0 %
- Armour Deck: 84 tons, 4.1 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 722 tons, 35.1 %
Hull, fittings & equipment: 579 tons, 28.1 %
Fuel, ammunition & stores: 629 tons, 30.5 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,428 lbs / 648 Kg = 31.3 x 4.5 " / 114 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.62
Metacentric height 1.9 ft / 0.6 m
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.31
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.503
Length to Beam Ratio: 7.10 : 1
'Natural speed' for length: 14.83 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 35
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: 18.00 ft / 5.49 m
- Forecastle (20 %): 14.00 ft / 4.27 m
- Mid (50 %): 14.00 ft / 4.27 m
- Quarterdeck (15 %): 13.00 ft / 3.96 m
- Stern: 13.00 ft / 3.96 m
- Average freeboard: 14.00 ft / 4.27 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 131.0 %
- Above water (accommodation/working, high = better): 78.4 %
Waterplane Area: 4,558 Square feet or 423 Square metres
Displacement factor (Displacement / loading): 109 %
Structure weight / hull surface area: 54 lbs/sq ft or 262 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.80
- Longitudinal: 7.16
- Overall: 1.00
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
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[Ithekro]

With the rising size of battleships and armored cruisers, the lighter vessels suffered in numbers of ships built. This class of lightly protected cruisers was built for speed and firepower over armor.


Methedras - laid down in 1894 (captured 1899) - returned 1910 (museum ship 1911) - (scrapped 1917)
Caradhras - laid down in 1895 (scrapped 1917)


Rohan Protected Cruiser laid down 1894

Displacement:
2,071 t light; 2,177 t standard; 3,056 t normal; 3,746 t full load

Dimensions: Length overall / water x beam x draught
250.00 ft / 250.00 ft x 35.00 ft x 21.00 ft (normal load)
76.20 m / 76.20 m x 10.67 m x 6.40 m

Armament:
2 - 4.50" / 114 mm guns in single mounts, 45.56lbs / 20.67kg shells, 1894 Model
Quick firing guns in deck mounts
on centreline ends, evenly spread
8 - 4.50" / 114 mm guns (6 mounts), 45.56lbs / 20.67kg shells, 1894 Model
Quick firing guns in deck mounts
on side, evenly spread
4 - 0.75" / 19.1 mm guns in single mounts, 0.21lbs / 0.10kg shells, 1894 Model
Machine guns in deck mounts
on centreline, evenly spread, 1 raised mount
Weight of broadside 456 lbs / 207 kg
Shells per gun, main battery: 150

Armour:

- Armour deck: 0.75" / 19 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 1 shaft, 6,895 ihp / 5,144 Kw = 18.50 kts
Range 6,200nm at 13.00 kts (Bunkerage = 1,582 tons)

Complement:
205 - 267

Cost:
£0.287 million / $1.147 million

Distribution of weights at normal displacement:
Armament: 57 tons, 1.9 %
Armour: 87 tons, 2.9 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.0 %
- Armour Deck: 87 tons, 2.9 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,189 tons, 38.9 %
Hull, fittings & equipment: 738 tons, 24.1 %
Fuel, ammunition & stores: 985 tons, 32.2 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,901 lbs / 862 Kg = 41.7 x 4.5 " / 114 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.85
Metacentric height 2.8 ft / 0.9 m
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.20
Seaboat quality (Average = 1.00): 1.91

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.582
Length to Beam Ratio: 7.14 : 1
'Natural speed' for length: 15.81 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 37
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: 18.00 ft / 5.49 m
- Forecastle (20 %): 14.00 ft / 4.27 m
- Mid (50 %): 14.00 ft / 4.27 m
- Quarterdeck (15 %): 13.00 ft / 3.96 m
- Stern: 13.00 ft / 3.96 m
- Average freeboard: 14.00 ft / 4.27 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 140.6 %
- Above water (accommodation/working, high = better): 80.3 %
Waterplane Area: 6,293 Square feet or 585 Square metres
Displacement factor (Displacement / loading): 105 %
Structure weight / hull surface area: 58 lbs/sq ft or 281 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.85
- Longitudinal: 4.40
- Overall: 1.00
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
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[Ithekro]

To replace the large numbers of protected cruisers that have been lost or will come of age in the near future, Harlond Shipwrights have come up with a new protected cruiser design to compete with the Mithlond Yard's belted cruiser design. While not nearly has powerful or quite as fast, it is considerably cheaper than the relatively untested Sharkhorn-class. Also the steam engine design for the Sharkhorn was not quite ready by the end of 1902.

Minrimmon

Rohan Protected Cruiser laid down 1902

Displacement:
3,999 t light; 4,154 t standard; 4,773 t normal; 5,249 t full load

Dimensions: Length overall / water x beam x draught
380.00 ft / 380.00 ft x 45.00 ft x 17.00 ft (normal load)
115.82 m / 115.82 m x 13.72 m x 5.18 m

Armament:
2 - 4.50" / 114 mm guns in single mounts, 45.56lbs / 20.67kg shells, 1902 Model
Quick firing guns in deck mounts
on centreline ends, evenly spread
8 - 4.50" / 114 mm guns in single mounts, 45.56lbs / 20.67kg shells, 1902 Model
Quick firing guns in deck mounts
on side, evenly spread
4 - 0.75" / 19.1 mm guns in single mounts, 0.21lbs / 0.10kg shells, 1902 Model
Machine guns in deck mounts
on centreline, evenly spread, all raised mounts
Weight of broadside 456 lbs / 207 kg
Shells per gun, main battery: 200
4 - 16.0" / 406.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm - -
2nd: 2.00" / 51 mm - -

- Armour deck: 2.25" / 57 mm, Conning tower: 5.00" / 127 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 14,000 ihp / 10,444 Kw = 21.64 kts
Range 7,250nm at 10.00 kts (Bunkerage = 1,114 tons)

Complement:
286 - 373

Cost:
£0.483 million / $1.933 million

Distribution of weights at normal displacement:
Armament: 57 tons, 1.2 %
Armour: 575 tons, 12.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 50 tons, 1.0 %
- Armour Deck: 495 tons, 10.4 %
- Conning Tower: 30 tons, 0.6 %
Machinery: 2,111 tons, 44.2 %
Hull, fittings & equipment: 1,206 tons, 25.3 %
Fuel, ammunition & stores: 774 tons, 16.2 %
Miscellaneous weights: 50 tons, 1.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,480 lbs / 1,125 Kg = 54.4 x 4.5 " / 114 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.71
Metacentric height 3.6 ft / 1.1 m
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.08
Seaboat quality (Average = 1.00): 1.40

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.575
Length to Beam Ratio: 8.44 : 1
'Natural speed' for length: 19.49 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 50
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 (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: 12.70 ft / 3.87 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 153.8 %
- Above water (accommodation/working, high = better): 89.5 %
Waterplane Area: 11,896 Square feet or 1,105 Square metres
Displacement factor (Displacement / loading): 90 %
Structure weight / hull surface area: 64 lbs/sq ft or 311 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.31
- Overall: 1.00
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

[Ithekro]

The Yaquina-class were purchased from the Confederate States of America in 1904 and rebuilt to replace the aging Teton-class cruiser (also ex-Confederate vessels) until such time as Rohan can fill in the lighter cruiser area of the fleet with local designs.


(All these vessels were scrapped in 1916)

Yaquina (ex-Laredo)
Karok (ex-Torreon)
Kusa (ex-Wilmimgton)
Coqu (ex-Abilene)
Kusa (ex-Socorro)
Umpqua (ex-Tucson)

Rohan (ex-Confederate) Protected Cruiser laid down 1891 (rebuilt: engine 1904)

Displacement:
1,915 t light; 1,984 t standard; 2,250 t normal; 2,453 t full load

Dimensions: Length overall / water x beam x draught
320.00 ft / 320.00 ft x 40.00 ft x 12.00 ft (normal load)
97.54 m / 97.54 m x 12.19 m x 3.66 m

Armament:
2 - 4.50" / 114 mm guns in single mounts, 45.56lbs / 20.67kg shells, 1902 Model
Quick firing guns in deck mounts
on centreline ends, evenly spread
6 - 4.50" / 114 mm guns in single mounts, 45.56lbs / 20.67kg shells, 1902 Model
Quick firing guns in deck mounts
on side, evenly spread
6 guns in hull casemates - Limited use in any sea
4 - 1.50" / 38.1 mm guns in single mounts, 1.69lbs / 0.77kg shells, 1902 Model
Quick firing guns in deck mounts
on side, evenly spread
4 - 0.75" / 19.1 mm guns (2x2 guns), 0.21lbs / 0.10kg shells, 1902 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 372 lbs / 169 kg
Shells per gun, main battery: 100
4 - 16.0" / 406.4 mm submerged torpedo tubes

Armour:

- Armour deck: 0.50" / 13 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 8,500 ihp / 6,341 Kw = 21.18 kts
Range 5,000nm at 10.00 kts (Bunkerage = 478 tons)

Complement:
163 - 212

Cost:
£0.257 million / $1.027 million

Distribution of weights at normal displacement:
Armament: 47 tons, 2.1 %
Armour: 77 tons, 3.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.0 %
- Armour Deck: 77 tons, 3.4 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,075 tons, 47.8 %
Hull, fittings & equipment: 707 tons, 31.4 %
Fuel, ammunition & stores: 335 tons, 14.9 %
Miscellaneous weights: 10 tons, 0.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
803 lbs / 364 Kg = 17.6 x 4.5 " / 114 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.84
Metacentric height 3.4 ft / 1.0 m
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.08
Seaboat quality (Average = 1.00): 1.12

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.513
Length to Beam Ratio: 8.00 : 1
'Natural speed' for length: 17.89 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 63
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 (20 %): 14.00 ft / 4.27 m
- Mid (50 %): 13.00 ft / 3.96 m (4.00 ft / 1.22 m aft of break)
- Quarterdeck (15 %): 4.00 ft / 1.22 m
- Stern: 4.00 ft / 1.22 m
- Average freeboard: 8.85 ft / 2.70 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 189.3 %
- Above water (accommodation/working, high = better): 81.4 %
Waterplane Area: 8,313 Square feet or 772 Square metres
Displacement factor (Displacement / loading): 76 %
Structure weight / hull surface area: 58 lbs/sq ft or 285 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 1.03
- Overall: 1.00
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