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I have decided to make a seperate thread for this class. I am not yet ready to start the full Roman AU just yet. The backstory is that in 1913, Gallia launched an invasion of the Roman Republic, gaining some initial success, they soon found themselves at a stalemate. At sea though, Rome stood supreme, her rather large navy had an interesting mix of both modern, and old ships. Gallia did have some impressive battleships of her own, but not enough to beat the Roman Atlantic fleet stationed in Hispania. To weaken the Roman navy, and achieve naval parity, Gallia was able to convince their almost hated neightbour, Germania. Toghether they could beat the Roman navy. In 1914, the two sent out a flotilla of ships they were willing to sacrifice out to sea in the hopes that the Roman fleet would take the bait, and go after them. A Roman flotilla of 4 battleships, 3 battlecuisers plus 10 support ships quickly gave pursuit for the easy prey. A fleet consisting of 15 battleships, 7 battlecuisers and 20 support ships of a combined Gallic-Germanic fleet would then sneak up behind the Roman fleet and annahilate it. In a twisted move of typical Roman arrogance, the Roman admiral Gaius Quintus pursued the flotilla, and soon found himself being engaged by the enemy fleet. After many hours, only a handful of Roman ships were able to escape. The Roman senate agreed to initiate a war time emergency building plan for the Roman fleet. The emergency plan would increase the size of the Roman navy by 20%. 10 nattleship, 6 battlecuisers, 10 cruisers, 35 destroyers, 50 submarines and 75 torpedo boats. The Devestatio class was the first of the emergency plan battleship. Four ships were to be built; the Devestatio, Vindicta, Leo and Tigris. All four were commisioned between late 1917 and early 1918. At the time, they were the biggest and most powerful battleships in the world, capable of sinking any Gallic, or Germanic battleship. They were a force to be reckoned with, and was greatly admired by both friend and foe alike.









Devestatio, Roman Republic Battleship laid down 1915

Displacement:
29 779 t light; 31 924 t standard; 32 750 t normal; 33 411 t full load

Dimensions: Length overall / water x beam x draught
617,00 ft / 617,00 ft x 98,43 ft x 32,81 ft (normal load)
188,06 m / 188,06 m x 30,00 m x 10,00 m

Armament:
8 - 16,00" / 406 mm guns (4x2 guns), 2 048,00lbs / 928,96kg shells, 1915 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
18 - 5,00" / 127 mm guns in single mounts, 62,50lbs / 28,35kg shells, 1915 Model
Breech loading guns in casemate mounts
on side, all amidships
8 - 3,00" / 76,2 mm guns in single mounts, 13,50lbs / 6,12kg shells, 1915 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 17 617 lbs / 7 991 kg
Shells per gun, main battery: 150
4 - 21,0" / 533,4 mm submerged torpedo tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12,0" / 305 mm 426,50 ft / 130,00 m 20,00 ft / 6,10 m
Ends: 8,00" / 203 mm 90,50 ft / 27,58 m 11,00 ft / 3,35 m
100,00 ft / 30,48 m Unarmoured ends
Main Belt covers 106 % of normal length

- Torpedo Bulkhead:
5,00" / 127 mm 426,50 ft / 130,00 m 20,00 ft / 6,10 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 18,0" / 457 mm 5,00" / 127 mm 13,0" / 330 mm

- Armour deck: 3,50" / 89 mm, Conning tower: 16,00" / 406 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 50 927 shp / 37 992 Kw = 23,00 kts
Range 5 000nm at 10,00 kts
Bunker at max displacement = 1 486 tons

Complement:
1 216 - 1 582

Cost:
£4,599 million / $18,398 million

Distribution of weights at normal displacement:
Armament: 2 202 tons, 6,7 %
Armour: 12 580 tons, 38,4 %
- Belts: 4 713 tons, 14,4 %
- Torpedo bulkhead: 1 578 tons, 4,8 %
- Armament: 3 126 tons, 9,5 %
- Armour Deck: 2 810 tons, 8,6 %
- Conning Tower: 353 tons, 1,1 %
Machinery: 1 929 tons, 5,9 %
Hull, fittings & equipment: 12 968 tons, 39,6 %
Fuel, ammunition & stores: 2 971 tons, 9,1 %
Miscellaneous weights: 100 tons, 0,3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
39 107 lbs / 17 739 Kg = 19,1 x 16,0 " / 406 mm shells or 6,9 torpedoes
Stability (Unstable if below 1.00): 1,00
Metacentric height 4,9 ft / 1,5 m
Roll period: 18,7 seconds
Steadiness - As gun platform (Average = 50 %): 68 %
- Recoil effect (Restricted arc if above 1.00): 0,94
Seaboat quality (Average = 1.00): 1,36

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,575
Length to Beam Ratio: 6,27 : 1
'Natural speed' for length: 24,84 kts
Power going to wave formation at top speed: 47 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): -10,00 degrees
Stern overhang: -4,00 ft / -1,22 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 28,50 ft / 8,69 m
- Forecastle (20 %): 25,00 ft / 7,62 m
- Mid (50 %): 25,00 ft / 7,62 m (16,00 ft / 4,88 m aft of break)
- Quarterdeck (15 %): 16,00 ft / 4,88 m
- Stern: 17,50 ft / 5,33 m
- Average freeboard: 20,89 ft / 6,37 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 92,8 %
- Above water (accommodation/working, high = better): 137,0 %
Waterplane Area: 43 400 Square feet or 4 032 Square metres
Displacement factor (Displacement / loading): 96 %
Structure weight / hull surface area: 210 lbs/sq ft or 1 024 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,96
- Longitudinal: 1,81
- Overall: 1,02
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily

Hi Karle,

Would they have directors that stayed the same from 1915-1925? Comparing to real world stuff, I thought the technology (and the appearance of the newer marks of directors) changed quite a bit in that period?

Regards,
ADam

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NSWE: viewtopic.php?f=14&t=5695

Some American battleships kept some of their directors until the mid 20s.

while it was not uncommon IIRC for ships to look a bit top heavy after modifications, this one does from the beginning. this might just be looks, as springsharp keeps her as reasonably good, but as IIRC springsharp does not keep every part in mind, I would advice to keep an eye on it.

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Hi Karle,

Fair point, I'd read these to be first-line, pride-of-the-fleet type ships, and had assumed they'd get the newest, best everything, particularly fire control...

Ad

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NSWE: viewtopic.php?f=14&t=5695

All versions up to 1921 are war time modifications, 1925 is peace time. Since the ships were the pride, and the very best, they didn`t have much time to get refits, which is why there are only minor modifications to the ship in the span of four years. The ship will get a complete rebuild in 1930 to 1933.

It feels very QE-ish. Maybe it could be painted like one of the ships from Victorian era during peacetime?

Impressive series.

Did someone order a Victorian Devestatio?

My plan is that in 1930, two of the Devestatios, including Devestatio herself will be completely rebuilt, whilst the two others, wo were bysu in a minor conflict, never had the chance to be rebuilt. My question is, how should I rebuild the two Devestatios, and how should the other two be refitted? I can`t make up my mind. What I have in mind for the rebuild is an extended stern for better space for a decent crane and a new larger catapult. I am also thinking of adding a new extended Prinz Eugen style bow.