Austria-Hungary Becomes A First Class Naval Power 1890-1914

I had planned to get this out before Christmas, but I was side-tracked writing replies to other threads. It's intended to be a bit of fun for the holiday season so please don't pick too many holes in it.

Austria-Hungary Becomes a First Class Naval Power
Introduction


In history I've always found when it went wrong more interesting than when it went right. Furthermore I've always felt sorry for the Austro-Hungarian Empire. This essay doesn't prevent its collapse at the end of 1918, but it goes out with a bang instead of a whimper.

IOTL the Navy was a coast defence force consisting of ships that were well-designed considering the budget limitations, but inferior to the ships of the first class naval powers. ITTL the Empire maintained a sea going navy of the first rank, whose ships were in terms of quality comparable to contemporary Royal Navy warships.

The POD is 1867 when Dalmatia became part of the Kingdom of Croatia, which gave Hungary a much longer coastline. That gave Hungarian politicians a reason to support greater naval expenditure. There were Dalmatian votes in it for them. Furthermore the Ganz group diversified into shipbuilding (Ganz, Danubis) and naval armaments (guns and armour built in factories around Budapest) which created a Hungarian naval-industrial complex.

Therefore more ships are completed from the middle 1890s onwards, but just as important is the improvement in the quality of the ships because increased funding allows better ships to be built as well as more ships.


Capital Ships

ITTL 4 rather than 3 Monarch class battleships to be completed 1897-98. The fourth ship was the first major warship to be built at Ganz, Danubis ITTL. Furthermore these ships were ocean going battleships displacing 11,570 tons (which is still smaller than the contemporary Majestic class) rather than the coast defence ships of 5,785 tons that were built IOTL.

The next battleship class was the Hapsburg class completed 1903-04. ITTL their displacement was increased from 8,232 tons to 12,348 tons, which made them comparable to the contemporary British Duncan class battleships. 4 ships were built ITTL instead of 3 and the extra ship was built by Ganz, Danubis.

The Erzerzog Karl class battleships completed 1906-07 also had their displacements increased by 50%, which in their case was from 10,472 to 15,708 tons. This made them equal to the contemporary British King Edward VIII class battleships. 4 were completed 1906-07 instead of 3 and the fourth ship was built by Ganz, Danubis.

IOTL the last Austro-Hungarian pre-dreadnought battleships were the Radetzky class, which displaced 14,508 tons and were completed 1910-11. ITTL the Austro-Hungarian legislature authorised 4 dreadnought battleships displacing 21,762 tons. They the Tegetthoff class of OTL, but the larger displacement allowed better underwater protection. IOTL the designers of the Tegetthoff class knew it was vulnerable to mines and torpedoes, but tight naval budgets prevented them from correcting the fault. In terms of quality this Improved Tegetthoff class was about equal to the contemporary British Orion class of super-dreadnoughts. In common with the pattern established by the 3 previous battleship classes, the fourth ship was built by Ganz, Danubis.

So far Austro-Hungarian capital ship design was effectively a generation ahead of the real world, but that did not happen with the next class. Had all other things being equal the Erstaz Monarch class would have been built in place of the Tegetthoff class. However, a second quartet of Improved Tegetthoffs was built instead. The second group incorporated detail improvements and in terms of quality were equal to the contemporary British Iron Duke class. In the real world the fourth ship, Szent István, was the first battleship to be built by Ganz, Danubis and was completed a year and a half later than Prinz Eugen which was laid down the same month at Stabilimento Tecnico Triestino, Trieste. However, ITTL the yard had been building battleships for nearly 10 years when she was laid down in January 1912 and she was completed in the summer of 1914.

If the Italians had not jumped from 12" to 15" for their next class of dreadnoughts, the Austro-Hungarians would have built the Erstaz Monarch class to a further refinement of the Improved Tegetthoff design. However, they replied with an enlarged version of the design prepared IOTL. The increase in size was mainly to allow better protection, especially against mines and torpedoes, however it also allowed the main armament to be increased from ten to twelve 14" in four triple turrets and the secondary battery to be increased from fourteen to sixteen 5.9" guns. As the admirals and naval constructors had decided that protection was more important than speed this design had more in common with the American standard battleships than the British Queen Elisabeth class.

More preparatory work would have been done by August 1914 on the Erstaz Monarch class ITTL and they would have at least reached the laying down stage. Furthermore ITTL Austria-Hungary had a more efficient conscription system that allowed skilled workers to be recalled from the armed forces once it was clear that the empire was fighting a long war. However, they would only be completed if Italy joined the Central Powers or remained neutral.

Therefore Austria-Hungary had a fleet of 20+0+4 battleships in August 1914 instead of 15+1+4 in the real world. However, the improvement in quality was just as important because the 20 battleships consisted of 8 dreadnoughts and 12 large pre-dreadnoughts rather than the 3 dreadnoughts, 9 small pre-dreadnoughts and 3 coast defence ships that made up the force of 15 battleships IOTL.


Cruisers

ITTL each class of 4 battleships was complemented by one armoured cruiser and a trio of second class protected cruisers.

The armoured cruiser Maria Theresa, completed in 1894, was built to scout for the Monarch class. However, ITTL its displacement was doubled from 5,250 long tons to 10,500 tons, which was larger than the biggest contemporary British cruisers.

Karl VI, completed in 1900, was the armoured cruiser built to scout for the Hapsburg class. It had its displacement doubled to 12,138 tons, which made her superior to the contemporary British Diadem class which were first class protected cruisers, rather than armoued cruisers.

The armoured cruiser Sankt Georg, completed in 1905, had its displacement doubled from 7,174 tons to 14,348 tons and was the equal of the last generation of British armoured cruisers (Duke of Edinburgh, Warrior and Minotaur classes). It was built alongside the Erzerzog Karl class battleships and was the last armoured cruiser built by Austria-Hungary.

IOTL the Empire built no battle-cruisers, but ITTL they built 2 alongside the 8 Improved Tegetthoff class super-dreadnoughts built in place of the Radetzky and real Teggetthoff classes. They would have been battle-cruiser editions of the Improved Tegetthoff design with the main armament reduced to eight 12" in four twin turrets to compensate for the more powerful machinery. In terms of quality they would have been better than the contemporary British Lion class and the German Von Der Tann-Moltke-Seydlitz design because of their superior turret arrangement.

Erstaz Maria Theresa was the battle-cruiser version of the Erstaz Monarch and mounted eight 14" guns in four twin turrets, which made her equal to the contemporary British Tiger, Japanese Kongo and German Derfflinger classes. She was laid down at Danubis, Fiume in 1913 and completed in the second half of 1915.

Therefore Austria-Hungary had 2+1+0 battle cruisers backed up by 3 large armoured cruisers in August 1914 instead of the 3+0+0 small armoured cruisers it possessed in the real world.

15 second class protected cruisers were built in 5 classes of 3 analogous to the 5 battleship classes. The first class was an improved Franz Joseph I class displacing 4,000 tons and the subsequent classes evolved from this design. All carried the same main armament of eight 5.9" guns, but were progressively larger, faster and better protected. The last 6 had turbine machinery and displaced about 5,000 tons. An improved class of 3 ships was to be built alongside the Erstaz Monarch class. In terms of quality the first 9 ships were equal to the British Highflyer class of second class protected cruisers and the last 6 were equivalent to the British Town class light armoured cruisers.

IOTL the Austro-Hungarians had 7 light cruisers in August 1914. That is 4 new scout cruisers of the Admiral Spaun class and 3 obsolete Zenta class third class protected cruisers completed at the turn of the century. 3 Erstaz Zenta class light cruisers of 5,000 tons were to be built alongside the Erstaz Monarch class battleships.

Thus ITTL the Austro-Hungarians had a mix of 15+0+3 second class protected cruisers and light cruisers which is a great improvement on the mix of 7+0+3 third class protected cruisers and scout cruisers possessed IOTL. In both timelines the Austro-Hungarians also had the older and obsolete 2nd class protected cruiser Kaiserin Elisabeth, which was completed in 1892, on the China Station.


Destroyers and Torpedo-Boats

Prior to the middle 1890s torpedo craft development was as OTL.

However, between 1900 and August 1914 they completed 30 torpedo-boat-destroyers and had another 6 under construction, that is 6 for every 4 battleships. I typed torpedo-boat-destroyer in full because that was their primary role, unlike German contemporary destroyers, which were sea going torpedo-boats. Therefore a powerful gun armament and the ability to keep their speed in realistic sea conditions was more important that the best possible maximum speed in ideal conditions. The 12 built alongside the Monarch and Hapsburg classes were similar to the British River class. The 6 built alongside the Erzherzog Karl class were turbine driven versions of the previous class. The next 18 built alongside the Radetzky, Tegetthoff and Erstaz Monarch classes were of a 1,000 tonne type armed with three 4.1" guns and 4 torpedo tubes. It was divided into 3 sub-classes of 6 with each succeeding class having more powerful machinery. Qualitatively the 1,000 tonne type was equal to the contemporary British G to S class family of destroyers.

Thus Austria-Hungary had 30 effective destroyers in August 1914 instead of 18 and ship for ship they were of better quality than the real world's 12 Huzar and 6 Tatra class destroyers.

The number of torpedo boats built between 1895 and 1914 was the same as OTL. The only improvement in their design was that turbines were introduced about 5 years sooner.


Submarines

In the real world Austria-Hungary did not acquire any submarines until the middle 1900s when it was decided to buy 3 different foreign types (2 boats of each from Germania, Holland and Lake), which were to be competitively evaluated, to formulate the particulars of a submarine suitable for the special needs of the Austrian Navy. Based on the results of these trials, a double-hulled submarine of about 500 tons, with diesel propulsion for 16-18 knots surface speed and 3 to 5 45cm (17.7”) torpedo tubes was envisaged for the next generation of Austro-Hungarian U-boats. After a series of design presentations one Whitehead and one Germania design reached the final round, after which the Germania design 506d (German designation UD) was ordered because a better price was offered. Laid down in 1913 they were to become U-7 to U-11, but were sold back to Germany and commissioned as U-66 to U-70, as a transfer to Pola by sea was considered to be impossible given the war situation.The Austro-Hungarian submarine force entered the war with 6 more or less experimental boats, of which U-1 and U-2 were not operational, because they were drydocked to receive diesels instead of their dangerous gasoline engines. [Copied from Conway's]

ITTL the Austro-Hungarian Government bought a licence to built 6 Holland submarines at the turn of the century which were completed by the end of 1905. Half of them were built by Whitehead and the rest at the Pola Navy Yard. An improved class of 6 double-hulled boats with capabilities similar to the 2 Germania boats purchased IOTL was built in the second half of the 1900s. Again 3 were built at Pola and the rest by Whitehead. More generous funding allowed 12 submarines to be ordered in 1910 to be completed by the end of 1915 and built to the specification for a 500 ton submarine issued IOTL. The Whitehead design won ITTL and in common with the earlier classes they built 6 and the Pola Navy Yard built the others. Another 12 submarines of the 500 ton type were included in the 1916-1920 plan to replace the 12 boats built in the 1900s.

But in August 1914 the only submarines available to the Kaiserliche und Königliche Kriegsmarine only were the 12 boats completed in the 1900s albeit refitted with diesel engines, but all of them were still more or less experimental designs.


Summary

The real Kaiserliche und Königliche Kriegsmarine had 20,000 personnel according to Jane's Fighting Ships 1914, which in this version of history was increased to 30,000. That happens to be the same as the personnel strength for the Regia Marina, but ITTL the Italians are likely to have expanded their navy in reply to the larger Austro-Hungarian Fleet.

In service were 12 experimental submarines, 20 battleships, 2 battle-cruisers, 3 armoured cruisers, 15 smaller cruisers and 30 destroyers. In numbers this was a substantial improvement over the fleet that existed in the real world, which consisted of 6 experimental submarines, 15 battleships, no battle-cruisers, 3 armoured cruisers, 7 smaller cruisers and 18 destroyers. The number of older large warships and the number of torpedo boats of all ages was the same in both timelines.

However, the increase in fighting power was even greater than the numbers suggested due to the ships being built to larger and more battle-worthy designs. For example in this version of history the 20 battleships consisted of 8 dreadnoughts and 12 large pre-dreadnoughts rather than the 3 dreadnoughts, 9 small pre-dreadnoughts and 3 coast defence ships that made up the force of 15 battleships IOTL. The 2 Austro-Hungarian battle cruisers backed up by 3 large armoured cruisers that existed in August 1914 ITTL were a massive improvement over 3 small armoured cruisers possessed in the real world.
Correction dated 26.08.23

The real Ersatz Monarch class would have been armed with 13.8in guns, not 14in guns as I've written above. Similarly, the ALT-Ersatz Monarch class and the complimentary Erstaz Maria Theresa class battle cruiser in this thread would have been armed with 13.8in guns, not 14in guns as I've written above.
 
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I have to ask where does AH get the cash to pay for it all?

You are probably doubling the navel budget where do you take it from, the army? Much as I like ships actually improving the army would be a better use of the cash IMO AH is nearly landlocked (even with more Adriatic coastline) winning the land war (v Russia mainly) by having more and better artillery/MGs would be far more useful (simply build up the AH army to German standards?).

Even if you want a strong navy do you need a balanced one ? What is your navy's doctrine and war plan ?

I would suggest that a balanced fleet is uneconomic if you still will not be able to break out effectively (you might pre war I suppose not think that the RN will join in the war so only plan v French and/or Italian fleets), so a Sub based fleet to deny the Adriatic and threaten the Mediterranean trade routes would make more sense?

The only other question is would a larger navy spend more in the west (coastline) rather than in east (Hungary) so might not be universally popular and hard to get the agreement for the Taxes to pay for it?
 
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The budget fights between Vienna and Budapest saw the Dual Monarchy hugely underspend on the military in general. There was slack in the budget if a deal could be done.
 
To become a first class naval power, we need to get the k.u.k. Kriegsmarine operating outside the Adriatic Sea (a body of water smaller than the combined area of USA/Canada's Lake Superior and Lake Huron). Otherwise a Baltic-like coastal defence fleet is all that is needed, where battleships are a waste of resources better spent on submarines and torpedo boats to counter any Italian aggressions.

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Austria-Hungary needs a reason to get out of the Mediterranean Sea or at least the Adriatic. And this is accomplished through foreign territory. I'd start with a formal purchase of the albeit useless Nicobar Islands from Denmark rather than squatting. Then build a coaling station and port to support an initiative to expand Austrian flagged merchant trade.

There are other opportunities for colonial expansion, albeit all likely economic failures, that could drive naval activities outside of the Mediterranean Sea, seen here https://en.wikipedia.org/wiki/Austrian_colonial_policy

However, such colonial warship needs would require a navy more of the Netherlands' size rather than Germany's.
 
A-H has a limited coastline, and the infrastructure to support a navy is primarily near the northern end of the Adiratic, ports further down the coast are not well supplied with infrastructure for a navy and also have limited rail capacity to bring goods in. Building the infrastructure to support a navy out of more than a port or two will add to the cost (including beefing up rail lines to bring in munitions, heavy equipment etc.). Even using the most southern ports along the A-H coast, the Adriatic is incredibly constricted. If Italy and/or Greece are hostile then the A-H navy is completely bottled up. If both are neutral, it is still relatively easy for the French or British navies to keep the A-H navy from any sort of breakout in to the Med as such. Finally once the A-H navy does break out, they are still in restricted waters and what do they do for resupply/repair etc except go back to where they came from.

If the KuK Kriegsmarine is allied with France/Britain, they are really a third wheel. If they are fighting the MN & RN they are screwed. Submarines do make sense, though they have a tough time getting through to the more open waters. As far as large ships...why??
 
As far as large ships...why??
My only thought is that A-H sends its large ships to the Baltic to support Germany.

As part of gaining Germany's support against Russia and Serbia, in 1913, A-H sends the four (ATL) Ersatz Monarch and four Tegetthoff class dreadnoughts and a dozen of its modern (ATL) cruisers to Kiel to join the Kaiser's fleet. They then get stuck there when war breaks out because the KuK ships can't get past the RN guarding the North Sea and Gibraltar passage.

This leaves pre-dreadnoughts, olders cruisers, torpedo boats and submarines to guard the Adriatic.
 
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Maybe they had complete hegemony over the Balkans and started a colonies in africa they could start building a fleet
 
Maybe they had complete hegemony over the Balkans and started a colonies in africa they could start building a fleet
If Austria seizes more land during its victory over the Ottomans this could certainly be a scenario where a larger KuK fleet could be useful.

https://en.wikipedia.org/wiki/Ottoman–Habsburg_wars

In particular greater territorial gains were possible, albeit at risk of Prussian invasion, after the Austo-Turkish War of 1787 https://en.wikipedia.org/wiki/Austro-Turkish_War_(1787–91)

ottoman_empire_europe_1792.jpg
 
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OTL there had been some plans before WWI for the Triple Alliance fleets in the Mediterranean to cooperate to intercept French convoys between Algeria and the mainland. OTL Italian neutrality made that plan fall apart, but it's one of the main reasons the Goeben was in the Mediterranean to start with.
 
OTL there had been some plans before WWI for the Triple Alliance fleets in the Mediterranean to cooperate to intercept French convoys between Algeria and the mainland. OTL Italian neutrality made that plan fall apart, but it's one of the main reasons the Goeben was in the Mediterranean to start with.

My main source for this was Conway's 1860-1905 and 1906-21. They mention secret naval treaties that were made in 1900 and 1913 to ensure a strong joint command of the Central Powers' forces in the Mediterranean. When I read it before I thought it also said that the Italians were stockpiling coal at Messana, but I couldn't find it when I looked before writing this post.

I was going to have at least one of the 2 A-H battle-cruisers and a light cruiser squadron operating with the Goeben and Breslau in July 1914 for the purpose of intercepting the French troop convoys between Algeria and Metropolitan France.
 
To become a first class naval power, we need to get the k.u.k. Kriegsmarine operating outside the Adriatic Sea (a body of water smaller than the combined area of USA/Canada's Lake Superior and Lake Huron). Otherwise a Baltic-like coastal defence fleet is all that is needed, where battleships are a waste of resources better spent on submarines and torpedo boats to counter any Italian aggressions.

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Austria-Hungary needs a reason to get out of the Mediterranean Sea or at least the Adriatic. And this is accomplished through foreign territory. I'd start with a formal purchase of the albeit useless Nicobar Islands from Denmark rather than squatting. Then build a coaling station and port to support an initiative to expand Austrian flagged merchant trade.

There are other opportunities for colonial expansion, albeit all likely economic failures, that could drive naval activities outside of the Mediterranean Sea, seen here https://en.wikipedia.org/wiki/Austrian_colonial_policy

However, such colonial warship needs would require a navy more of the Netherlands' size rather than Germany's.

Minor overseas colonies would not be of much help for the k.u.k navy.
On the other hand, Austrian control of Saloniki, the most important port of the Balkans would be a real game changer for the navy.
 
I have to ask where does AH get the cash to pay for it all?

You are probably doubling the navel budget where do you take it from, the army? Much as I like ships actually improving the army would be a better use of the cash IMO AH is nearly landlocked (even with more Adriatic coastline) winning the land war (v Russia mainly) by having more and better artillery/MGs would be far more useful (simply build up the AH army to German standards?).

Even if you want a strong navy do you need a balanced one ? What is your navy's doctrine and war plan ?

I would suggest that a balanced fleet is uneconomic if you still will not be able to break out effectively (you might pre war I suppose not think that the RN will join in the war so only plan v French and/or Italian fleets), so a Sub based fleet to deny the Adriatic and threaten the Mediterranean trade routes would make more sense?

The only other question is would a larger navy spend more in the west (coastline) rather than in east (Hungary) so might not be universally popular and hard to get the agreement for the Taxes to pay for it?
The budget fights between Vienna and Budapest saw the Dual Monarchy hugely underspend on the military in general. There was slack in the budget if a deal could be done.
Conway's puts it better than I can so here are the relevant sections verbatim.

Austria-Hungary as a continental power always concentrated its main interest and resources on the Army. For decades the Navy faced an exhausting internal debate about whether it should restrict itself purely to coast defence - which would be cheaper or more logical, given Austria-Hungary's geographical situation - or whether she should enter the group of major naval powers by building dreadnoughts, which would be capable of power-projection and might be a powerful tool for a more active foreign policy.
In the period between the Battle of Lissa in 1866 and 1904 the naval share of the total defence budget was very small and only rose from 7.7 per cent to 15.7. Because modern warships had become more expensive this meant that obsolete warships were replaced by scarcely less outdated ones - "too good to die and too bad to fight," as cynical contemporary critics expressed it.

In 1900, when virtually every nation calling itself a naval power, had presented long-term naval building programmes and adopted them in the form of Naval Acts or Naval Laws, Austria-Hungary still lacked such a policy for reasons of domestic politics. Perhaps the greatest single obstacle to the plans of Austrian navalists was the stubborn Hungarian opposition to any increase in naval expenditure. It must be explained that a consequence of the dual status of the Hapsburg Empire was that two independent delegations (of Austria and of Hungary) had to reach a mutual approval of the defence budget, and that the Hungarian delegation therefore opposed large naval expenditure, which brought no tangible benefits to the Hungarian part of the Dual Monarchy.
Therefore

In this timeline the Navy's blue water faction was winning the argument from about 1890 to 1914. Making Dalmatia part of Hungary rather than Austria after 1867 and Ganz setting up a shipyard 20 years earlier provide the tangible benefits the Hungarian delegation required for them to support greater naval expenditure.

In July 1905, IOTL, Admiral Monteccuccoli the then Commander in Chief of the Navy proposed a fleet of 6 submarines, 12 battleships (9+3), 4 armoured cruisers (3+1), 8 scout cruisers, 18 destroyers, 36 large torpedo boats, and 6 submarines. He actually got all of the submarines and battleships, 4 of the scout cruisers, 12 of the destroyers and all of the large torpedo boats by the time he retired in 1910.

ITTL he would have proposed a fleet of 12 submarines (6 existed in 1905 ITTL), 16 battleships (12+4), 4 armoured cruisers (3+1), 24 destroyers and 36 large torpedo boats. The Imperial Government was able to obtain enough money to pay for everything he asked for.

According to Naval Warfare 1815-1914 by Lawrence Sondhas Austria-Hungary produced a fleet plan for 12 submarines, 16 battleships, 12 cruisers, 24 destroyers and 72 torpedo boats for a total of 136 vessels in 1911. They were, "to be replaced automatically after fixed terms of service as under Tirpitz's German navy laws." In this timeline I am increasing it to 24 submarines, 25 capital ships (20 battleships and 5 battle-cruisers), 15 light cruisers, 30 destroyers and 72 torpedo boats for a total of 166 vessels. That is 30 more than the real world, i.e. 12 submarines, 4 battleships, 5 battle-cruisers, 3 light cruisers and 6 destroyers.

The Cost

I think naval expenditure would have to be doubled between 1895 and 1910. That's because I'm building 16 battleships instead of 12 and 4 large cruisers instead of 3 so that would be a 33% increase in numbers but each ship displaced at least 50% more. Therefore 1 x 1.33 x 1.5 = a doubling of construction and operating costs. Furthermore I'm also having 12 submarines, 12 small cruisers and 24 destroyers built in this period in place of the 6 submarines, 4 small cruisers and 12 destroyers built to smaller and therefore cheaper designs IOTL. On the other hand large warships are cheaper to build and operate than smaller ones on a cost per ton basis. Therefore the increase might be somewhere between 50 and 100%.

In the period 1910-15 I think it would be a 50% increase, e.g. I increased the personnel in 1914 from 20,000 to 30,000 to provide the crews required for the extra ships and the larger crews of the ships built IOTL to larger designs.

In the period 1910-1915 they built 5 submarines, 4 dreadnoughts, 3 small cruisers and 6 destroyers IOTL. While ITTL they built 12 submarines, 4 dreadnoughts, 2 battle-cruisers, 3 light cruisers and 6 destroyers. In numbers that is 2.4 times more submarines, 50% more capital ships and the same number of light cruisers and destroyers. Furthermore, the battleships would displace 25,000 tons instead of 20,000 tons so they would cost up to 25% more, plus the light cruisers were about 50% larger and the destroyers were about 15% larger.

For the period 1916-20 they had planned to build 4 dreadnoughts, 3 small cruisers and 6 destroyers. ITTL they had planned to build 4 dreadnoughts, one battle-cruiser, 3 small cruisers and 6 destroyers. Here the increase in cost over OTL would have been about 25% and most of that would have been absorbed by the battle-cruiser as the characteristics of the other warships planned IOTL were catching up with those of the ones proposed in the real world.
 
my take is build fewer capital but more advance than building more capital ships.

25k standard tons isnt even the largest nor 14 inch the biggest guns in 1914. The queen elizabeth is around 27.5k. The USA builds a lot nearing 30k tons at this time.

16inch guns, fast battleships, 30 knots, more/better armor, 35-45k tons. In otl, Vickers offered the Russians 16inch guns with 2.4k AP lbs in 1914. Instead of dread and battlecruiser go for combined.

It would be a first class navy. But not a global navy.
 
my take is build fewer capital but more advance than building more capital ships.

25k standard tons isnt even the largest nor 14 inch the biggest guns in 1914. The queen elizabeth is around 27.5k. The USA builds a lot nearing 30k tons at this time.

16inch guns, fast battleships, 30 knots, more/better armor, 35-45k tons. In otl, Vickers offered the Russians 16inch guns with 2.4k AP lbs in 1914. Instead of dread and battlecruiser go for combined.

It would be a first class navy. But not a global navy.

The 4 dreadnoughts built instead of the Radetzky class pre-dreadnoughts were a 22,000 ton design with twelve 12" in 4 triple turrets. The contemporary RN design was the Orion with ten 13.5" in 5 twin turrets on 22,000 tons.

The 4 dreadnoughts built instead of the Tegetthoff class dreadnoughts were a 25,000 ton design with twelve 12" in 4 triple turrets. The contemporary RN design was the Iron Duke with ten 13.5" in 5 twin turrets on 25,000 tons.

The Erstaz Monarch class of the real world was a 24,000 ton design armed with ten 14" and fourteen 5.9". ITTL they would displace 30-32,000 tons with twelve 14" in 4 triple turrets and sixteen 5.9". The maximum speed of the OTL and ITL versions of the design was 21kt. The contemporary Italian design, the Francesco Caracciolo class, displaced 32,000 tons and had a maximum speed of 28 knots. It was armed with eight 15" in 4 twin turrets and twelve 6".

I didn't envisage any large scale deployments outside the Mediterranean unless it was large-scale gunboat diplomacy as part of a coalition of major powers or to support a multi-national military expedition. That is something like the relief of the international legations during the Boxer Rebellion. Normally extra-Mediterranean deployments would be confined to world cruises by a light cruiser or sail training ship.
 
[With minimal butterflies from the p.o.d. to the alternate WW1.]
Seriously, the money, efforts, materials and weapons would be better spent on the army, especially against Russia and Serbia and for the Hungarian part of the empire. With strong defences, the need of a huge navy [or army and air force against Italy and non-bordering countries] is unnecessary and irrelevant to overall victory [especially if Italy doesn't intervene while Germany supports Austria-Hungary as in reality].
1787-1792: Thanks to temporary Russian naval support and a later Swedish declaration of war, the Russian Mediterranean Fleet scores a victory against the Ottomans. Then, the Swedes raid St. Petersburg and launch and offensive that diverts the Russian Mediterranean Fleet and Army just as the Ottomans reel from the defeats. Also, Austria strikes against the Ottomans faster and the Ottomans lose Serbia.
Napoleonic Wars [with minimal butterflies]: The Habsburg Serbs consolidate control of their country and Montenegro. National consciousness occurs faster in the Balkans.
Greek and Egyptian Wars of Independence: Austria gains control of Epirus and Macedonia while Greece receives independence thanks to Austrian support for Greece. Diplomacy, butterflies and aggression ensure that Constantinople falls to Christians temporarily and the Egyptians control more of the Levant.
Balkan and alternate Russian-Ottoman Wars: Austria gains control of a bigger chunk of Eastern Europe from Russia while Bulgaria is lost to local revolutionaries.
Aftermath: Austria defeats Italy and Prussia during the latter's wars for unification. Austria renews its alliances with Egypt and Russia to defeat the Ottomans and Prussia and receives the right to pass through the Suez Canal.
And, there would be Austrian African and Mediterranean colonies and secure borders against Italy, [not unified] Germany and Russia. Enjoy the naval construction and butterflies!
Or a victorious Austro-Hungarian intervention to gain Balkan territory or defend the Ottomans in any late 19th century Russian-Turkish War.

As it happens this thread was inspired by your What if Italy [or country x] joined the Central Powers in WW1 thread. I wanted it to be within the alliance structure that existed 1890-1914 IOTL, but it might work better in a timeline where the League of the Three Emperors survived into the 1900s.
 
The 4 dreadnoughts built instead of the Radetzky class pre-dreadnoughts were a 22,000 ton design with twelve 12" in 4 triple turrets. The contemporary RN design was the Orion with ten 13.5" in 5 twin turrets on 22,000 tons.

Orion was a dreadnought. Radetzky is a pre dread.

The Erstaz Monarch class of the real world was a 24,000 ton design armed with ten 14" and fourteen 5.9". ITTL they would displace 30-32,000 tons with twelve 14" in 4 triple turrets and sixteen 5.9". The maximum speed of the OTL and ITL versions of the design was 21kt. The contemporary Italian design, the Francesco Caracciolo class, displaced 32,000 tons and had a maximum speed of 28 knots. It was armed with eight 15" in 4 twin turrets and twelve 6".

Basing on the Italian BB, your view of ATL Monarch is still inferior. It is out gunned, even lighter and slower.

italian BB 34k standard tons. The problem with the Italian BB is it has a planned armor of Zone of immunity at greater than 12k yards vs 14inch guns/1.4k AP shell while it can still outrun your TTL version.
 
Basing on the Italian BB, your view of ATL Monarch is still inferior. It is out gunned, even lighter and slower.

italian BB 34k standard tons. The problem with the Italian BB is it has a planned armor of Zone of immunity at greater than 12k yards vs 14inch guns/1.4k AP shell while it can still outrun your TTL version.

34,000 tons for the Caracciolo class was the full load displacement. The displacements I was quoting were normal displacements, which are smaller. E.g. according to Wikipaedia, which I got the Caracciolo information from, said they displaced 32,000 tons, normal. However, Conway's says their normal displacement was 31,400 tons.

The ALT Erstaz Monarch is 7 knots slower than the Caracciolo, but I dispute that twelve 14" are significantly inferior to eight 15". Furthermore the ALT Monarch would be better protected than the Caracciolo because less powerful engines = more armour.

In terms of displacement, armament, armour and speed the ALT Erstaz Monarch are the same as the US Pensylvania, New Mexico and Tennessee classes.

A more valid comparison with the Caracciolo would be the Erstaz Maria Theresa described in the Cruiser section of the OP. That is:

Erstaz Maria Theresa was the battle-cruiser version of the Erstaz Monarch and mounted eight 14" guns in four twin turrets, which made her equal to the contemporary British Tiger, Japanese Kongo and German Derfflinger classes. She was laid down at Danubis, Fiume in 1913 and completed in the second half of 1915.
Except that all the above had normal displacements of 26-28,000 tons and a maximum speed of around 28 knots. The Erstaz Maria Theresa would be 30-32,000 tons. The extra displacement would be used for thicker armour while maintaining a maximum speed of 28 knots.
 
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