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Subject: ww2 Yamato vs Iowa class
capt soap    9/17/2005 12:55:11 PM
How would this fight turn out? the Iowa's 16 inch guns against the Yamato 18 guns? The iowa had radar,which one would sink the other 1 on 1.
 
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Leech       7/1/2009 8:02:09 AM







Which had the longer range gun? 16 or 18 inch? So far there is a favor for the Iowa for radar,Yamato's armour was thicker, maybe it could get in visual range.



 I think that they had approximately same range. Difference could be for Yamato, but not much.










As Yamato had to use the optical range finder to measure target deflection, Yamato's USABLE range was ~26-27K yards, approximately 24K metres....because the longest ranged hits scored by a moving vessel on a moving target was about 24.5 K yards.


According to Herald, the Iowa's could open fire and expect hits at 30K yards or more....approximately 27.5 K metres.  The Iowa's 406 mm/L50 rifles PRACTICALLY out-ranged the 460 mm Yamato rifles.

 

Again it's not just ordnance, it's the complete weapon system...and in that respect the Iowas were superior vessels to the Yamato's.

 

Finally, someone mentioned that Yamato was designed to engage MULTIPLE battleships....I don't think so, not as this person suggested, with bow turrets engaging one target and the stern turret engaging another.  That's not reasonable...Yamato had only ONE fire control system, meaning that one set of turrets would be in local control.  And in local control the accuracy and/or range fall off immensely.  Yamato was designed to engage multiple targets, singly, by sinking and surviving several encounters, not by engaging several vessels at once.  In my view....if someone wants to present evidence that Yamato had a series of local fire control systems, and that these systems were as accurate as other navies centralized systems, I'm open to the evidence.



Yamato was designed primarly for battleship combat; Yamato did have relatively large number of AA guns, but I don't think these guns were good as US 40 mm Bofors (every Bofors had 4 gun barrels, which means 4x more firepower than same single-barrelled gun).-Iowa had 20x127 mm, 60x40mm Bofors, 60x20 mm Oerlikon cannons (140 in total); Yamato had 6x155 mm; 24x127 mm; 162x25 mm and 4x13.2 mm AA cannons by 1945 (194 in total); however, number of barrels is different-20x127 mm, 240x40 mm, and 60x20 mm for Iowa-320 in total; and 6x155 mm, 24x127 mm,162x25 mm, and 4x13.2 mm-196 for Yamato; that means Iowa had approximately 1.5 times heavier AA fire than Yamato.
 
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JFKY    Actually   7/1/2009 10:08:00 AM
2.5 times the light AAA capacity of the Yamato.
 
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elclip1       7/1/2009 12:38:12 PM
 
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Leech       7/3/2009 8:31:29 AM
What about South Dakota's AA capacity?
 
 
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JFKY    Leech   7/3/2009 9:59:32 AM

What about South Dakota's AA capacity?

 


About 300 pounds per minute LESS than the Iowa's...~48,600 pounds per minute...still about 2.5 times the Yamato's.
The more the numbers come out, sorry to an earlier poster who ran off crying because of us being "mean" to him with all those numbers and things, the less the Yamato makes sense.  It's 70,000 tons of high quality steel and optics that could have been better spent by Japan.
 
Again the SoDak is a better over-all platform than the Yamato...It was a better escort for the fast carriers, it was nearly as lethal as the Iowa, had the same superb fire control of the Iowa's...the Yamato, like the Bismarck, like the Tiger Tank, may capture everyone's imagination, but all three are way over-rated.
 
The US, by far, produced the more lethal battleship fleet, in WWII, more effective, more efficient, and more numerous...the US Navy, in WWII, was UNSURPASSED in it's capabilities.  Sorry ever-popular Royal Navy, but the USN was globe-spanning, and lethal, as well as numerous.
 
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bartrat    RN would have been great if money existed   7/3/2009 11:01:03 AM
The Royal Navy was very powerful in WW2, but the USN was in a whole other league. The RN would have been as good or better than USN if they had the resources (money and steel) IMHO. The RN created many technologies and tactics that the USN copied and later perfected. RN great for its funding level, USN fantastic due to great deal of resources given to it.
 
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JFKY    No, Batrat...   7/3/2009 11:34:01 AM
It wasn't just resources that made the USN far better than the RN.  The RN was badly hamstrung by British Policy and Naval Policy from the era 1919-39.  The RN didn't "get" Naval Aviation.  The Royal navy didn't produce Naval Aircraft.  The Royal Navy had a very poor anti-aircraft fire control system.  The Royal Navy had poor anti-aircraft artillery.  The Royal Navy did NOT emphasize US-style surface fire control.  The Royal Navy was lax in it's ASW training and policies.
 
The Royal Nay in 1919 was a world leader in a number of technologic areas.  Not so in 1939.  The Royal Navy had radar, but so did many other nations, Germany and the US...the only thing the RN contributed was the cavity magnetron.
 
The USN had underway replenishment, fast fleet carriers, was developing escort carriers, had far superior surface and AAW fire control, far superior a/c,  far superior amphibious warfare doctrine.  It wasn't just money, it was that the RN for 20 years simply did nothing of any substantive value in regards to future combat and allowed its technologic and doctrinal leads of 1919, wither away.  I can't think of a class of warships that the US didn't produce not only the MOST of, but also the BEST of...
 
Let's be honest the RN used US escorts, US escort carriers, flew US a/c, wanted to purchase more US guns and fire control systems-US inability to produce enough of them limited this purchase desire-the RN's finest light AAA was a SWISS weapon, it's finest medium AAA was a SWEDISH weapon-though to be fair the same could be said of the USN.
 
NONE of its services were up to the tasks assigned them in 1939!  And Britain raced frantically to make good it's short-comings, but never fully closed the gap...the RN was handicapped in its air policy, the RAF hadn't really thought about Douhetian Air Policy for all it's talk about "the Bomber Always Getting Thru" and the British Army had starved itself of any funds and thought in regards to Mechanized Warfare-and I attack Hart, Fuller AND the rest of the British Army, to include the so-called hide-bound Infantry and Cavalry.  The British Army handicapped ITSELF with foolish cap-badge arguments, the Infantry and the Cavalry were bad, but the Royal Tank Regiment and folks like Fuller and Hobart were just as Barmy and counter-productive!  Britain  was behind the US, Germany, and Japan in a host of areas...and I don't think you can say that Germany or Japan were economic powerhouses either, and Germany had the disadvantage of the Versailles Treaty.  The reason Britain was behind all three wasn't MOENY, it was want of THOUGHT!
 
Bottom-Line: I'm an Anglophile but Britain slept, stultified in the 20 years from the end of the First World War until the beginning of the Second...
 
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Herald12345    Let's play Fox News.    7/3/2009 8:35:13 PM
The British were better at:
 
Hydrodynamics and as shipwrights. Their hulls rode better in the water and were class for class usually more efficient slip/horsepower than USN ship classes. 
 
Their naval aircraft, at least the few they produced, started out competitive and were just ineffective because the time they took from blueprints to service entry was twice as long as it should have been.  The Fulmar and the Firefly would have been fone in 1940 and 1942  when they were expected. By 1944 they were outclassed. 
 
Technology comparison:
 
Torpedoes 
Japan first
Italy second
Britain third 
Germany fourth
France fitth
Russia and the US tied for last place.
 
Radars
Britain first 
Germany second
US third
Russia fourth
Italy and Japan fifth
 
ASW.
Britain first
Canada second
US and Italy third
Rest of the world-clueless.
 
Naval aviation
US and Japan first 
Britain and Italy second.
Rest of the world-clueless
 
Submarine warfare;
US and Germany first
Britain and Holland second
Rest of the world-clueless 
 
Naval warfare practice overall.
Britain first
US and Japan second
Canada third
Italy fourth
Rest of the world-clueless.
 
The Battle of the North Atlantic which was predominantly a UK Canadian affair was as hard fought as the Pacific War. The tools to hand were not as glamorous nor the fighting either, but the tools (depth charges, mortar bimbs, the little escorts the radars and sonars, the British modified American aircraft) and the trained UK and Canadian crews who fought that war were better than the American Navy in that theater; FAR BETTER, for most of the war..   
 
Just because the Kriegsmarine surface navy, overall, was incompetent to the point of stupidity, doesn't mean the U-boat men were. You had to be sharp to beat them..
 
And it took until 1944 for the USN to learn the lessons that the British tried to teach them in ASW. We should have taken notes from 1939 on. It was a far fall for the Navy that produced Admiral Sims who TAUGHT the RN the very .lessons in WW I that we had to learn back from the British in WW II.
 
Herald
   
  
 

 
 
 
 


 

 




 

 
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JFKY    Herald   7/3/2009 10:09:18 PM
I think you are too kind to the Brit's...and the battle of the Atlantic was a tripartite act, not just UK-Canadian...
 
I'd give the edge to the USN overall, it understood how it was going to fight it's war, and carried it out, and had laid the ground-work necessary to accomplish it.
 
I don't give the Brit's that much credit...for thinking it thru and planning for it, BEFOREHAND...they simply over-estimated their capacity to deal with U-boats, thinking ASDIC was some wonder weapon that negated the U-boat threat.  The rest of the RN was Ok, at best surface combat, and aerial combat, too.
 
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Leech       7/4/2009 2:47:42 AM




What about South Dakota's AA capacity?



 






About 300 pounds per minute LESS than the Iowa's...~48,600 pounds per minute...still about 2.5 times the Yamato's.


The more the numbers come out, sorry to an earlier poster who ran off crying because of us being "mean" to him with all those numbers and things, the less the Yamato makes sense.  It's 70,000 tons of high quality steel and optics that could have been better spent by Japan.

 

Again the SoDak is a better over-all platform than the Yamato...It was a better escort for the fast carriers, it was nearly as lethal as the Iowa, had the same superb fire control of the Iowa's...the Yamato, like the Bismarck, like the Tiger Tank, may capture everyone's imagination, but all three are way over-rated.

 

The US, by far, produced the more lethal battleship fleet, in WWII, more effective, more efficient, and more numerous...the US Navy, in WWII, was UNSURPASSED in it's capabilities.  Sorry ever-popular Royal Navy, but the USN was globe-spanning, and lethal, as well as numerous.



Tiger tank was not overrated, nor his cews were. There is example: In 7th January 1944., from workshop for tank-repair near Berdeèevo, 3 tigers from s.Pz.Abt.509 (509. heavy tank battallion), under command of von Diest-Korber. They run into ambush set by 30 T-34/76 (T-34 with 76 mm cannon). Lead tiger is hit by 20 76-mm projectiles from 200 m distance. Its engine shut down, targeting system was disabled, but crew managed to restart engines and get Tiger 1 km away from the village. Other two tigers covered his retreat, eventually destroying 5 T-34. Von-Diest Korber called for help. and for less than half of hour, 6 Tigers arrived. He sent 3 from one side of village, 3 from another, while he sent his two tanks by the road. Outcome of less-than-hour combat was destroyed Soviet tank brigade with commander and ~20 crewmen running from the scene. No Tiger was destroyed.
And, about Royal Navy-by the end of WWII, it was not larger by the end of war than single US Navy operational group (or that was task force) 77 on Pacific.
 
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