WI/AHC: Battleship equivalent of a "seventy-four"

In the 18th century, the dominant capital ship type was the third-rate "seventy-four" (named for its 74 guns) ship of the line with two decks which balanced speed, manuevering, cost, and firepower. Larger second-rate and first-rate ships with three decks were mostly used as command ships due to their cost and inferior speed/manuevering. Considering the technological limits of the era, the convergence on similar designs sharing many traits is natural.

So the question is could we have a generation of battleships with similar characteristics? It seems an "optimal" design for a battleship is plausible given the escalation of tonnage in the 1910s and inherent technological limits such as the guns you can build (larger shells/velocity means shorter gun barrel life), the amount of crew needed, the rate of fire, the fire control systems, and the limitations on naval armour where ships can't practically armour themselves against guns of a certain size.

This makes me think you could standardize the battleship on a design equivalent to the 18th century third-rate "seventy-four." OTL, the closest equivalent would be the USN's "Standards" of the 1910s, but I'm thinking of something more like the logical conclusion of the battleship. The biggest issue would obviously be the quickly advancing technology of the 20th century and its impact on naval warfare. As for the naval treaties which limited the size (and thus the need to increase size as a counter), we'd likely need to butterfly away World War I entirely and keep navies focused on and able to obtain battleships. While the naval races of the 1900s/early 1910s wouldn't last forever, we could easily see a renewed naval race by the 1930s or so TTL. It is noted that tonnage on battleships and battlecruisers was constantly increasing and eventually you would hit a plateau like this.

As for what it would look like, my idea (based on my admittedly limited knowledge, I know there's people here who could devise something like this) for a battleship equivalent to the "seventy-four" being something like a Yamato-class with 17-18'' guns, 27-30 knots of speed, and maybe 75-80K tons displacement. The 18'' gun is probably the maximum feasible for rate of fire and range, while a ship can't be armoured much past 18'' guns without either slowing it down or putting in bigger engines (and thus increasing cost). The 18'' gun was used in Japan and Britain and planned for the N3 battleship so it seems like a weapon to standardise around. TTL, your "second-rate"/"first-rate" would be costly experiments at making larger ships with, say, 20'' guns which no country could sustain many of. If you wanted a larger ship, you'd likely increase the number of 18'' guns rather than use a larger gun.

The problem is you run into the pace of technology and the aircraft carrier will eventually come of age. The age of missiles will also arrive and you'll want to mount those on your battleships instead. Nuclear propulsion will also change the ideal battleship design (much as the seventy-four was obsolete in the years after 1815) and IMO you'd only ever have a few years of true BBNs instead of oversized Kirov-class missile battlecruisers. So you'd only have a 10 year or so period for these ships to exist but in that period you'd presumably have a "golden age" of battleships and dozens of examples of this ship produced by the US, Britain, Germany, France, and Japan with a few more produced by "second-tier" naval powers like Russia, Italy, and Austria-Hungary. I doubt your lower-tier naval powers like Brazil, Argentina, Sweden, Spain, Netherlands etc. would ever acquire one (unlike the seventy-four, where lesser states like Venice or Portugal acquired a few) when they could buy an "outdated" ship like an N3 battleship instead.

So my question is, is this sort of design plausible? What would the impact on naval warfare be--designs like these using a lot of interchangeable guns and parts are cheaper thanks to economies of scale? What sort of counters would be devised--would the rising cost of making a good line of battle make more "lesser" powers go for aircraft and carriers as a defense instead?

Thoughts?
 
A third rate Dreadnought would be something like a version of the Repulse class with a top speed of around 28 - 30 knots and armour on the scale of the Queen Elizabeth class.
 
Its a cruiser or 3rd rate (64 to 80 guns) in 1800's talk.
In 1814 the RN had 15 1st and 2nd rates in commission (80-100+ guns) but 103 3rd rate ships (64 to 80 guns), 74's.
After the Washington Treaty the RN had 18 or so capital ships and had a need for 100 'cruisers' to continue to be the premier naval power just as she was in 1814.

As a POD, have the proposed 16,000ton limit on the tonnage of capital ships (IIRC Teddy Roosevelt suggested it) set at an arms limitation treaty in conjunction with the 1907 Hague Peace Convention. As propulsion is undergoing a revolution at this time, you would probably have navies build large numbers of 'balanced' cruisers with 8 or so 10" guns, lightish armour and 26-28 knots speed.
 
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Navies always tended to find that similar classes fit similar roles. Before the 74 gun it was the 64 (such as HMS Indefatigable before she was razeed). In the 1880's-1910's I would argue that this role was filled by the Armoured Cruiser. Basically a second type of capital ship that could be deployed to far away stations and act as flagship but could also operate with the battlefleet if needed. Granted, that second use was more true near the end of the period than the beginning. Battlecruisers could also be considered a combination of third and second rates. During the treaty period this role was mostly filled by heavy cruisers.

Without WW1 or the naval treaties I would guess that 16 or 18" gunned BC's or Fast BB's would compliment 18 or 20" gunned BB's. Third Rates might be what you consider 10 or 12" gunned supercruisers.
 
For a POD, have the Second World War play our in such a way that Aircraft Carriers never prove their worth and or get wrecked.

Have Intelligence make Britain/France aware of Operation Sickle Cut and move forces to block. Humiliating disaster for Germany. Stalemate. The Wehrmacht runs out of fuel and collapses in 41. Italy never joins the war. The US does not rearm and remains isolationist because Germany flopped.

Japan gets embargoed. Britain redeploys assets to the Far East and establishes good intelligence re Japan so as to lure them into trap. Japan recklessly pulls the trigger on Britain. The Kidō Butai (Japanese carrier fleet) gets ambushed off Indonesia by shore based aircraft and finished off by Battleships. Propaganda narrarive says Battleships won it when the shore based aircraft made that possible and military men find it impolitic to contradict the propaganda narrative re a Great Victory. By 43, japanese economy and war effort collapses for lack of oil. No Pacific War.
 
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During the heyday of the 74 gun naval and gun technology was basically stagnant and unchanging for almost one hundred years. Unless you can replicate those conditions in the early 20th centenary no single homogenous class of battleship will evolve.
 
During the heyday of the 74 gun naval and gun technology was basically stagnant and unchanging for almost one hundred years. Unless you can replicate those conditions in the early 20th centenary no single homogenous class of battleship will evolve.
Yes

The nearest comparison would be the decade or so in the late nineteenth century when the UK churned out Pre-Dreadnoughts of succeeding classes that were all 4x12" main guns with similar speed and armour, making them the "74 gun" equivalent. The few second-class battleships for foreign stations (Swiftsure & Triumph +?) might be "64s". But it seems there was no need for larger flagships.
 
basically stagnant and unchanging for almost one hundred years.
Now this I don't think is accurate. Granted that things changed much slower than they would in the age of steam, but there were significant advances in technology during the Late Sail age as well. Just look at the number of ships that slipped down the ratings as more powerful ships became the standard.
 
A sailor boarding a ship of the line in 1720, could have sailed and fought a ship of the line in 1820. No way a sailor from 1820 could have walked onto a Battle ship in 1920 and sailed it out of harbour. Heck Even Samuel Pepes and his contemporise could have walked aboard a ship in the Nelsonian period and understood exact what every rope did and how every gun was fired. Yes Naval development was proceeding at a snails pace for that long! Yes ships got a little bigger and so did guns but there was no great leap forward. Now you take 1870 to 1920, and the Changes are unbelievable to some one from early 19th centaury let alone to someone from the late 17th centaury.
 
Yes

The nearest comparison would be the decade or so in the late nineteenth century when the UK churned out Pre-Dreadnoughts of succeeding classes that were all 4x12" main guns with similar speed and armour, making them the "74 gun" equivalent. The few second-class battleships for foreign stations (Swiftsure & Triumph +?) might be "64s". But it seems there was no need for larger flagships.

Although the 74 carries nearly the same main armament in the same numbers as a 100 gun ship, its 'secondary' battery is smaller and smaller calibre.

In the 18th century, the dominant capital ship type was the third-rate "seventy-four" (named for its 74 guns) ship of the line with two decks which balanced speed, manuevering, cost, and firepower.

And this is the issue. the 64 or 74 ( British built) had a compliment of 4-500, a first rate 7-800. So you can man 3x 74 for the same cost as 2x 100 and the 74s will win the command and control issues are mostly to do with entertaining local potentates rather than accommodation for the Admiral his prize agent and flag Lieutenant. This is different to having a larger staff, radios, code rooms and suchlike.

With the gun armour equation the same would apply 3x Dreadnought with 12'' guns will beat 2x Dreadnought with 16'' guns provided they can close to a range able to penetrate without themselves being penetrated - Lanchesters Law.

In terms of Utility on overseas stations - A Colossus or an Essex works just as well.
 
Rate of fire is a big thing. The old sailing ships had to allow for wind, wave and enemy motion and the broadside was like a shotgun blast in intent. You fired 74 cannon balls in the hope that enough hit squishy things to end the battle. Once explosive shells came on the scene the big broadsides had to go. The use of Iron as a construction and not just a nail or 2 also changed combat. The true death of the Ship of the Line was the Monitor and Merrimac battle during the American Civil war. The fact was that either ship could come out in a dead calm and pick of sailing vessels with impunity. As the hitting power of the guns increased to deal with the armour the ships evolved into the Armoured Cruiser as evidenced by for example the Crecy class with numerous guns of varying calibre. No central fire control was present and engagements took place over a few thousand yards instead of up to 200 odd yards. By the time the battle of Tsushima occurred the Armoured cruiser was equal to a Battleship in all but armour and gun calibre. Fast forward to HMS Dreadnaught and the revolution was complete. Central fire control, uniform gun calibre. Etc. The First Rate classification is best seen as a capital ship. For example a Carrier or Cruiser is the equivalent, I would argue that Submarines are the ultimate ship of the line due to deterrence effect.

 
A sailor boarding a ship of the line in 1720, could have sailed and fought a ship of the line in 1820. No way a sailor from 1820 could have walked onto a Battle ship in 1920 and sailed it out of harbour. Heck Even Samuel Pepes and his contemporise could have walked aboard a ship in the Nelsonian period and understood exact what every rope did and how every gun was fired. Yes Naval development was proceeding at a snails pace for that long! Yes ships got a little bigger and so did guns but there was no great leap forward. Now you take 1870 to 1920, and the Changes are unbelievable to some one from early 19th centaury let alone to someone from the late 17th centaury.
Is that actually true? Every rope and gun?
 

CalBear

Moderator
Donor
Monthly Donor
There was a standard equal to the 74, it was simply too expensive to build in massive quantities. It was the battle cruiser. Before the launch of HMS Dreadnought it was the Armored Cruiser. Much as was the case with a 74, the BC was faster than the 1st and 2nd class battleships of the era (basically the original dreadnought and super-dreadnought designs of WW I) well armed, but not really able to stand one-on-one with a 1st rate which was of a heavier build and carried larger and more powerful guns.

If you go forward into the interwar period this would have continued to be the case without a WNT. If the WNT had been written somewhat differently, allowing either 10" or 11" guns (or even 12" guns since the standard BB size was moving to 14 "-16") with a tonnage limitation of around 14,000 tons (very similar to the Deutchland class panzerschiff) that would have also built a space for a interwar version of the 74, although, again, the cost of such a platform would certainly reduce the number constructed. This class of ship would be somewhat superior to the 8" gun "Heavy Cruiser" although slower, same as the difference between a 74 3rd rate and 44 gun frigate (until some clown came along and built the American 44's like Constitution, which were in a class of their own, wedged in the gap between the 3rd Rate and the standard 44, thanks to the extensive use of live oak and extra thick oak planking in their construction).

Of course the ultimate modern expression of a 74 would be the worst concept ever foisted on the U.S. Navy, the Alaska class Cruiser, Big (even the class description is an GD embarrassment).
 
Is that actually true? Every rope and gun?
Yes. Pretty well literally true. One ship of the line, HMS Royal William, launched in 1670, saw active service over a 90 period, was outfitted as a guard ship in 1790, and was not broken up until 1813. Ships routinely lasted for decades ( although requiring constant repairs and rebuilds), with only the most marginal improvements in terms of gunnery and ships' rigging. Hell, HMS Victory, Nelson's flagship, was forty years old at Trafalgar, and was a lineal descendant, so to speak, of HMS Sovereign of the Seas, the prototypical ship of the line. She could have been worked and fought by the same men who served aboard Sovereign, with little effort.
 
Yes. Pretty well literally true. One ship of the line, HMS Royal William, launched in 1670, saw active service over a 90 period, was outfitted as a guard ship in 1790, and was not broken up until 1813. Ships routinely lasted for decades ( although requiring constant repairs and rebuilds), with only the most marginal improvements in terms of gunnery and ships' rigging. Hell, HMS Victory, Nelson's flagship, was forty years old at Trafalgar, and was a lineal descendant, so to speak, of HMS Sovereign of the Seas, the prototypical ship of the line. She could have been worked and fought by the same men who served aboard Sovereign, with little effort.
The most significant difference between a ship of the line of the 1690's and the 1840's would be the ships chronometer replacing the hourglass.
 
Is that actually true? Every rope and gun?
Sort of

There were some major changes, the introduction of the carronade, some moderate changes in the 1790's in how the timbers and frames were arranged to make larger ships more efficient, increasing use of iron in the structure, guns changed to being lock fired, but nothing they couldn't figure out in principal

They would be confused in how one managed to attach copper to the bottom of the ship and not have it corrode off quickly, they could guess why it was done, but the exact how would elude them. Likewise on close analysis exactly how the carronades were cast would stump them
The most significant difference between a ship of the line of the 1690's and the 1840's would be the ships chronometer replacing the hourglass.
I'd argue Coppering is more significant




In any case the big issue with a "modern" 74 is that age of sail 74's didn't rely on armor or have to worry about piercing it. If an armored ship has lighter armor than its contemporaries, then it can be defeated at a longer range, and if it has lighter guns than it cannot defeat enemies at the same range, therefore sacrificing either guns or armor makes it much weaker, and if you sacrifice speed you can't operate together. About the only thing that can be sacrificed is number of guns, which is effectively what a 74 sacrificed compared to 98 or 100 or 110 or 120. The issue is once you aren't dependent on windpower displacement hulls get inherently more efficient as they get larger, and steel ships tend to get cheaper per ton as they go larger. So in the days of ail you can have 10 74's or 7 104's with about the same combatpower for about the same price, and the greater flexibility of the 74 makes it useful enough you want a mix. With steel hulls you would not say get 10 battleships with 6 16" guns for the price of 5 with 12 16" guns, you would be lucky to get 7 and 7 ships with 6 guns do not equal 5 with 12 in combat power

Its worth noting the US built a class of battleships that were described and intended as "modern 74s" at the time. It was the Mississippi class and they were gotten rid of as fast as possible, as they sacrificed seaworthiness and ergonomics to an unacceptable degree without reducing cost much, while their predeccesor class was kept until the WNT, the only reason they survived longer was the whole sold to Greece in 1914 as an emergency stopgap, the Greek BB not being completed due to WWI and being broke postwar. THey basically did have the same characteristics as their predecessor in firepower, armor and speed, as none could be sacrificed without maknig the ship unable to really stand up to contemporary battleships. So we can say there was an honest attempt OTL to try it that failed miserably
 
There was a standard equal to the 74, it was simply too expensive to build in massive quantities. It was the battle cruiser. Before the launch of HMS Dreadnought it was the Armored Cruiser. Much as was the case with a 74, the BC was faster than the 1st and 2nd class battleships of the era (basically the original dreadnought and super-dreadnought designs of WW I) well armed, but not really able to stand one-on-one with a 1st rate which was of a heavier build and carried larger and more powerful guns.

If you go forward into the interwar period this would have continued to be the case without a WNT. If the WNT had been written somewhat differently, allowing either 10" or 11" guns (or even 12" guns since the standard BB size was moving to 14 "-16") with a tonnage limitation of around 14,000 tons (very similar to the Deutchland class panzerschiff) that would have also built a space for a interwar version of the 74, although, again, the cost of such a platform would certainly reduce the number constructed. This class of ship would be somewhat superior to the 8" gun "Heavy Cruiser" although slower, same as the difference between a 74 3rd rate and 44 gun frigate (until some clown came along and built the American 44's like Constitution, which were in a class of their own, wedged in the gap between the 3rd Rate and the standard 44, thanks to the extensive use of live oak and extra thick oak planking in their construction).

Of course the ultimate modern expression of a 74 would be the worst concept ever foisted on the U.S. Navy, the Alaska class Cruiser, Big (even the class description is an GD embarrassment).
A 74 could not in normal circunstances face à 1st rate 1 vs 1, but they could fight as part of the line. That makes them closer to the German BC than to the original RN Battlecruisers.
The best examples I can think of XX century 74s would be Strasbourg and Dunkerque.
 
For a POD, have the Second World War play our in such a way that Aircraft Carriers never prove their worth and or get wrecked.

Have Intelligence make Britain/France aware of Operation Sickle Cut and move forces to block. Humiliating disaster for Germany. Stalemate. The Wehrmacht runs out of fuel and collapses in 41. Italy never joins the war. The US does not rearm and remains isolationist because Germany flopped.

Japan gets embargoed. Britain redeploys assets to the Far East and establishes good intelligence re Japan so as to lure them into trap. Japan recklessly pulls the trigger on Britain. The Kidō Butai (Japanese carrier fleet) gets ambushed off Indonesia by shore based aircraft and finished off by Battleships. Propaganda narrarive says Battleships won it when the shore based aircraft made that possible and military men find it impolitic to contradict the propaganda narrative re a Great Victory. By 43, japanese economy and war effort collapses for lack of oil. No Pacific War.
Unfortunately, that's only going to slow down the switch from battleships to carriers.
 

McPherson

Banned
In the 18th century, the dominant capital ship type was the third-rate "seventy-four" (named for its 74 guns) ship of the line with two decks which balanced speed, manuevering, cost, and firepower. Larger second-rate and first-rate ships with three decks were mostly used as command ships due to their cost and inferior speed/manuevering. Considering the technological limits of the era, the convergence on similar designs sharing many traits is natural.

So the question is could we have a generation of battleships with similar characteristics? It seems an "optimal" design for a battleship is plausible given the escalation of tonnage in the 1910s and inherent technological limits such as the guns you can build (larger shells/velocity means shorter gun barrel life), the amount of crew needed, the rate of fire, the fire control systems, and the limitations on naval armour where ships can't practically armour themselves against guns of a certain size.

This makes me think you could standardize the battleship on a design equivalent to the 18th century third-rate "seventy-four." OTL, the closest equivalent would be the USN's "Standards" of the 1910s, but I'm thinking of something more like the logical conclusion of the battleship. The biggest issue would obviously be the quickly advancing technology of the 20th century and its impact on naval warfare. As for the naval treaties which limited the size (and thus the need to increase size as a counter), we'd likely need to butterfly away World War I entirely and keep navies focused on and able to obtain battleships. While the naval races of the 1900s/early 1910s wouldn't last forever, we could easily see a renewed naval race by the 1930s or so TTL. It is noted that tonnage on battleships and battlecruisers was constantly increasing and eventually you would hit a plateau like this.

As for what it would look like, my idea (based on my admittedly limited knowledge, I know there's people here who could devise something like this) for a battleship equivalent to the "seventy-four" being something like a Yamato-class with 17-18'' guns, 27-30 knots of speed, and maybe 75-80K tons displacement. The 18'' gun is probably the maximum feasible for rate of fire and range, while a ship can't be armoured much past 18'' guns without either slowing it down or putting in bigger engines (and thus increasing cost). The 18'' gun was used in Japan and Britain and planned for the N3 battleship so it seems like a weapon to standardise around. TTL, your "second-rate"/"first-rate" would be costly experiments at making larger ships with, say, 20'' guns which no country could sustain many of. If you wanted a larger ship, you'd likely increase the number of 18'' guns rather than use a larger gun.

The problem is you run into the pace of technology and the aircraft carrier will eventually come of age. The age of missiles will also arrive and you'll want to mount those on your battleships instead. Nuclear propulsion will also change the ideal battleship design (much as the seventy-four was obsolete in the years after 1815) and IMO you'd only ever have a few years of true BBNs instead of oversized Kirov-class missile battlecruisers. So you'd only have a 10 year or so period for these ships to exist but in that period you'd presumably have a "golden age" of battleships and dozens of examples of this ship produced by the US, Britain, Germany, France, and Japan with a few more produced by "second-tier" naval powers like Russia, Italy, and Austria-Hungary. I doubt your lower-tier naval powers like Brazil, Argentina, Sweden, Spain, Netherlands etc. would ever acquire one (unlike the seventy-four, where lesser states like Venice or Portugal acquired a few) when they could buy an "outdated" ship like an N3 battleship instead.

So my question is, is this sort of design plausible? What would the impact on naval warfare be--designs like these using a lot of interchangeable guns and parts are cheaper thanks to economies of scale? What sort of counters would be devised--would the rising cost of making a good line of battle make more "lesser" powers go for aircraft and carriers as a defense instead?

Thoughts?

That is a South Dakota



That is a KGV.

Hmmm.

9 or 10 barrels in three main gunhouse positions. Bore diameter sizes of main guns are 35.5 to 40.6 cm at calibers 45 or 50.

Effective ranges were 15,000 to 35,000 meters.

Fought enemy battleships and won, or at least did not lose.

Had secondaries designed to mostly fight aircraft?

I think the convergences happened.
 
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