How many Tachibana class escort ships be made with the first 30% of a Yamato class battleship?

For those who don’t know, Shinano was originally planned as a Japanese Yamato class battleship. However, midway through construction Japan decided to convert it into a carrier.

Not an aircraft carrier though, a “support carrier” which would only carry 47 aircraft for self defense but held almost a hundred more aircraft as spares and many supplies to support the actual fleet carriers on extended operations. It was sunk by a US submarine in 1944.

Another such support carrier actually did exist, the HMS Unicorn.

What if the Shinano was converted into an actual fleet carrier though? It takes space to house not just replacement aircraft, but additional pilots, mechanics, etc.

So Shinano probably wouldn’t have been able to carry the 120 aircraft it theoretically could’ve. But it still probably would’ve carried a lot of aircraft owing to its size.

The question is, how much? I look forward to your responses!

@kaleu

Yeah, I read about that, the flagship of the English fleet captured last minute in the war. We’ll have to settle with HMS Victory instead.

@RJL518:

The real question to be asked is how would a battle have gone if the Missouri and Iowa took on the Super-Battleships Yamato and Musashi.  
As Samuel Eliot Morison, author of the History of US Naval Operations in World War II, once said…“What a brawl that would have been!”
Even though the Yamato and Musashi had 18.1 inch guns compared to the 16 inch of the Iowa class, the Iowas were still faster and still had better range.  
But who knows.  
IMO it would have depended on the tactics and strategy of the captains in a great battle at that time.

And it was a match-up that nearly happened.  Yamato and two of the Iowa-class battleships, Iowa and New Jersey, missed each other by only a few hours in the area of the San Bernadino Straight during the closing stages of the Battle of Leyte Gulf.  And if Musashi hadn’d been sunk the previous day, there would have been the potential for a two-on-two fight.  I’d have given a lot to get tickets to watch a slugging match like that.

One interesting technical difference is that even though the belt armour of the Yamatos was thicker than that of the Iowas, its performance might not have been better by comparison.  Japanese industry wasn’t capable of producing 16-inch armour as a single block, so the Yamato belt armour was in two layers rather than monolithic, which reduced its effectiveness.  Also, the Class-A armour components of the Iowa’s defenses were more advanced than the grade of armour used on the Yamatos, and thickness-for-thickness had better resistance to penetration.  On the offensive side, the 16-inch AP shells fired by the Iowas were heavyweight designs, with a greater weight relative to their diameter than the 18.1-inch AP shells fired by the Yamatos (2,700 lb vs. 3,219 lbs), and they were fired at nearly the same muzzle velocity (2,500 ft/s vs. 2,600 ft/s) because the Iowa guns had longer barrels relative to their bore (50 calibers vs. 45 calibers).

@jim010:

Good analysis. +1 to you.

Had the Germans had these, though, it would be hard to say what they would match up against.  Britain and France would have ships to counter these.  Instead of being an answer to the Deutschland class, they would have had to have built answers to the more powerful Mackensens.  The KGV very likely would have had 15 guns rather than 14s.Â

Very hard to figure out what France and Britain would have responded with.  And in turn, whatever the French did would influence the Italians.  My guess is you would have seen a much more aggressive battleship race between the major powers.  The super battleships planed by everyone probably would have materialized sooner.

Well said.

The official USN designation for the class was ‘heavy cruiser’.

The only ‘battle-cruisers’ the USN ever built were the six Lexington class; none were completed as such, two being converted into carriers and the other four scrapped per the WNT.

Rob.

@wittmann:

Thanks Noll. I guessed it was something like that. Should have realised it had to be Alexandria. Where else would our frogmen have sunk anything?
I forgot it was two Battleships that were sunk.
Do you subscribe to the Italian connection in the Novorossiysk incident?
It is nice to think it could be true.

I seriously don’t know and I can’t tell. I’d like to think so tho’.

Also, imagine being on the flight deck when you fired those things off.  Say good buy to sound.

With the Russian design, you would also have to be careful not to fire the guns pointed over the flight deck, or you’d blast away the deck with just the fireballs.  :-D

@Raunchy:

Was anyone else aware of the most Southerly German grave?

I wrote about it in the “favorite WWII ship post”. The commerce raider Atlantis is my favorite WWII ship.