Two Ships
--IRS Totanis
--IRS Domitor
QuoteLBS-16, Imperial Roman Battleship laid down 1916
Displacement:
34,500 t light; 36,579 t standard; 38,910 t normal; 40,775 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(685.71 ft / 672.57 ft) x 101.71 ft x (29.53 / 30.75 ft)
(209.00 m / 205.00 m) x 31.00 m x (9.00 / 9.37 m)
Armament:
8 - 16.14" / 410 mm 45.0 cal guns - 2,120.85lbs / 962.00kg shells, 110 per gun
Breech loading guns in turret on barbette mounts, 1915 Model
4 x 2-gun mounts on centreline ends, evenly spread
2 raised mounts - superfiring
20 - 5.51" / 140 mm 55.0 cal guns - 85.98lbs / 39.00kg shells, 175 per gun
Quick firing guns in casemate mounts, 1909 Model
16 x Single mounts on sides, aft evenly spread
4 x Single mounts on sides, forward evenly spread
4 hull mounts in casemates- Limited use in heavy seas
16 - 3.94" / 100 mm 45.0 cal guns - 30.86lbs / 14.00kg shells, 350 per gun
Quick firing guns in deck and hoist mounts, 1906 Model
8 x Twin mounts on sides, evenly spread
8 raised mounts
4 - 1.77" / 45.0 mm 50.0 cal guns - 3.31lbs / 1.50kg shells, 75 per gun
Anti-air guns in deck mounts, 1910 Model
4 x Single mounts on side ends, evenly spread
4 raised mounts
10 - 0.26" / 6.5 mm 110.0 cal guns - 0.01lbs / 0.00kg shells, 10,000 per gun
Machine guns in deck mounts, 1911 Model
10 x Single mounts on sides, evenly spread
10 raised mounts
Weight of broadside 19,194 lbs / 8,706 kg
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 13.6" / 345 mm 437.17 ft / 133.25 m 18.04 ft / 5.50 m
Ends: 1.97" / 50 mm 235.37 ft / 71.74 m 13.12 ft / 4.00 m
Main Belt covers 100 % of normal length
- Torpedo Bulkhead - Additional damage containing bulkheads:
3.15" / 80 mm 437.17 ft / 133.25 m 31.17 ft / 9.50 m
Beam between torpedo bulkheads 82.02 ft / 25.00 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 17.3" / 440 mm 7.09" / 180 mm 11.8" / 300 mm
2nd: 3.94" / 100 mm 1.97" / 50 mm 3.94" / 100 mm
3rd: 0.59" / 15 mm - 1.97" / 50 mm
4th: 0.39" / 10 mm - -
- Armoured deck - multiple decks:
For and Aft decks: 3.35" / 85 mm
Forecastle: 1.38" / 35 mm Quarter deck: 1.38" / 35 mm
- Conning towers: Forward 13.78" / 350 mm, Aft 0.00" / 0 mm
Machinery:
Oil fired boilers, steam turbines,
Electric motors, 4 shafts, 70,000 shp / 52,220 Kw = 24.23 kts
Range 7,000nm at 14.00 kts
Bunker at max displacement = 4,196 tons
Complement:
1,384 - 1,800
Cost:
£5.412 million / $21.648 million
Distribution of weights at normal displacement:
Armament: 3,835 tons, 9.9 %
- Guns: 3,835 tons, 9.9 %
Armour: 13,442 tons, 34.5 %
- Belts: 4,924 tons, 12.7 %
- Torpedo bulkhead: 1,588 tons, 4.1 %
- Armament: 3,616 tons, 9.3 %
- Armour Deck: 2,973 tons, 7.6 %
- Conning Tower: 341 tons, 0.9 %
Machinery: 2,608 tons, 6.7 %
Hull, fittings & equipment: 12,935 tons, 33.2 %
Fuel, ammunition & stores: 4,410 tons, 11.3 %
Miscellaneous weights: 1,680 tons, 4.3 %
- Hull below water: 850 tons
- Hull above water: 150 tons
- On freeboard deck: 630 tons
- Above deck: 50 tons
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
60,462 lbs / 27,425 Kg = 28.8 x 16.1 " / 410 mm shells or 10.3 torpedoes
Stability (Unstable if below 1.00): 1.23
Metacentric height 7.5 ft / 2.3 m
Roll period: 15.6 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.69
Seaboat quality (Average = 1.00): 1.37
Hull form characteristics:
Hull has rise forward of midbreak,
a normal bow and a round stern
Block coefficient (normal/deep): 0.674 / 0.679
Length to Beam Ratio: 6.61 : 1
'Natural speed' for length: 25.93 kts
Power going to wave formation at top speed: 49 %
Trim (Max stability = 0, Max steadiness = 100): 37
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 5.45 ft / 1.66 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 28.71 ft / 8.75 m, 28.71 ft / 8.75 m
- Forward deck: 15.00 %, 28.71 ft / 8.75 m, 28.71 ft / 8.75 m
- Aft deck: 50.00 %, 19.69 ft / 6.00 m, 19.69 ft / 6.00 m
- Quarter deck: 15.00 %, 19.69 ft / 6.00 m, 19.69 ft / 6.00 m
- Average freeboard: 22.84 ft / 6.96 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 81.8 %
- Above water (accommodation/working, high = better): 160.5 %
Waterplane Area: 53,580 Square feet or 4,978 Square metres
Displacement factor (Displacement / loading): 106 %
Structure weight / hull surface area: 201 lbs/sq ft or 979 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.47
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Excellent accommodation and workspace room
Good seaboat, rides out heavy weather easily
Misc Weight Distribution
-Below Water (850t)
--652t Electric Drives
--100t Additional Pumps
--40t Additional Damage Control Equipment
--8t Construction Reserve
-Above Water (200t)
--40t Improved Officer Accommodations
--40t Improved Crew Accommodations
--70t Additional Damage Control Equipment
--20t Enhanced Ventilation and Crew Comfort
--20t Short-Range Wireless (x2)
--10t Construction Reserve
-On Deck (630t)
--384t 1912 Fire Control
--35t Flag Facilities
--40t Admiralty Accommodations
--25t Long Range Wireless
--20t Enhanced Ventilation and Crew Comfort
--40t Night Fighting Equipment
--50t Additional Damage Control Equipment
--25t Huelsmeyre Equipment
--11t Construction Reserve
-Above Deck (50t)
--20t Additional Optical Spotting Equipment
--15t Night Fighting Equipment
--15t Improved Signaling Equipment
Main Battery arranged A(B)[SS](X)Y with B superfiring A and X superfiring Y.
Armored deck broken up as 70mm main deck over Fore/Aft with a 15mm splinter deck. End armor is uniform 35mm deck.
Bunker 4196
Cruise Speeds/SpringSharp Range/True Range
10knts/14665nm
14knts/7000nm
20knts/2888nm
24knts/1742nm
Time at Top Speed: 72.58 Hours
Fastest Speed From Brest to Havana (3943nm): 17.743knts for 222.23h transit
In 1922H1, both ships of this class were refit with 1918 Fire Control.