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Moved the info from submarine aircraft carrier to here. I am not sure about the info about the scuttling of the subs. It seems different than the info that was here. say1988 00:34, July 21, 2005 (UTC)
There's no way that the aicha could match the performance stats quoted in this article. It was not capable of reaching 360mph in level flight, let alone maintaining it for 650 miles whilst carrying a bombload. The quoted performance figures in the Aicha M6A page are much more realistic. --Corinthian 23:46, 7 June 2006 (UTC)
I changed Long Lance to Type 95, the Japanese designation; Long Lance was the name given by Morison postwar. Also, "four 3,000 horsepower (2.2 MW) engines"? I doubt it, & the spec box sez 7000hp (a far more reasonable figure). User:trekphiler 10:44, 12 November 2006 (UTC)
"The commander of the submarine fleet, Captain Ariizumi, had been responsible for an atrocity earlier in the war and therefore apparently decided on suicide rather than surrender to the Americans."
I removed the part explaining the suicide. Revert if any source is available on the atrocities AND the connection with the decision. If any atrocities are documented a page could be created about the man himself. 82.66.206.198 21:41, 23 December 2006 (UTC)
Durring the Cold War the US Navy had at least two early cruise missiles: the 'Loon' which was a V-1 with US markings and the 'Regulas'. Both were launched from submarines equipt with pressure chambers very much like those on the I-400 class of IJN subs. Wohl1917 18:56, 27 January 2007 (UTC)
Links for those intrigued by this tidbit of navy history: Republic-Ford JB-2 "Loon" and SSM-N-8 Regulus "Regulus" Naaman Brown ( talk) 17:17, 21 November 2009 (UTC)
I've removed this para from the introduction as none of the references provided appears to support it, and it may not even be relevant to the topic of this article. 'Although the U.S. Navy remained discreet about it, the Japanese were ahead of the Allies in many aspects of submarine development and underwater weapons. During the Second World War, the Japanese had 30 different classes of submarines — from the one-man suicide torpedoes to the giant I-400 class of aircraft carriers, and used the world's most effective torpedoes, the Type 95.' -- Nick Dowling 11:16, 18 June 2007 (UTC)
M6A1 performance: Warplanes of the Second World War.FLOATPLANES VOL 6William Green. gives an economical crusing sped of 184 mph and a range of 739 miles. Docent75 ( talk) 21:25, 26 October 2008 (UTC)
This NY Times article suggests that there was another class capable of holding 2 Aichi M6As—the I-14. There's no article on this. Any experts? Bongo matic 01:13, 13 November 2009 (UTC)
As a member of a class of two, it cannot be in the Unique category! Hugo999 ( talk) 13:11, 27 November 2009 (UTC)
While not familiar with all aspects of the I-400 subs, I do have a Japanese nautical chart of Tokyo Bay taken from the I-400 by my father after his LSM was tied to the I-400 along with the sub tender. My father was an radio operator on LSM-284. His boat entered Tokyo Bay on August 27th, 1945. On the back of the chart he wrote to his younger brother on September 9th, 1945 about their boarding the "largest sub in the world" and how the conscript Chinese and few remaining Japanese left on Board to maintain the craft were all in rags and smelled of rice wine, seemingly having used the watered down wine instead of water to bath. — Preceding unsigned comment added by LPrb ( talk • contribs) 22:05, 14 August 2011 (UTC)
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Quote: Strung along the submarine's gunwales were two parallel sets of demagnetization cables, running from the stern to the bow planes. These were intended to dissipate the static charge that normally builds up when a boat's hull slices through the water, causing the steel in the hull to deteriorate over time. (Sakaida,p.73)
Me:This cannot be true. Vessels don't build up a static charge running through nice conductive water, and degaussing cables wouldn't change anything if they did. Mistranslation from Sakaida? If there were degaussing cables presumably they were to reduce the magnetic signature of the vessel so it would be less prone to setting off magnetic influence mines? Dbeierl ( talk) 14:01, 25 December 2012 (UTC)
The last section of this article titled "Artifacts" states that the only surviving aircraft was found at the Aichi Aircraft Factory in August 1945 and does cite a ref. for this information however, a related Wiki Article titled Aichi M6A states, under the section titled "Survivors", that this same aircraft was surrendered by a Japanese Navy Lt. to U.S. forces after he flew it from Fukuyama to Yokosuka. The source cited in the Aichi article is the Smithsonian's own website. Which is correct?
A small point for this article since it's really on the sub and not the plane but the source should be double checked and the section corrected or deleted if it is in fact incorrect. Most of the refs. cited in this sub article appear to have come from one source. -- BLACKMONGOOSE13 ( talk) 07:29, 3 December 2013 (UTC)
The question has been raised at Talk:Japanese submarine I-401 of whether that article (and by implication also Japanese submarine I-402), both of which are meagre offerings with little or no material that is not already here, should be merged with I-400-class submarine. The 401/402 articles are likely never be developed into articles with distinct material, beyond the detail that is or can be included here. A single good article would be of benefit to readers (unless one day it became too large and had to be divided). Note no mention of merging Japanese submarine I-400. Strangely, that one doesn't exist - the link in the table is just a circular redirect back to here. It's "pre-merged". Perhaps at least that wikilink ought to be deleted. Davidships ( talk) 22:25, 3 December 2013 (UTC)
The article on the Ulithi Atoll indicates that by mid-1945 the Ulithi Atoll naval base had been largely abandoned. The article on the I-400 class submarines suggests that in mid-1945 the Ulithi Atoll was being used as a staging area for the American invasion fleet against the Japanese home islands. One of the two statements appears to be incorrect. Wsjacobs ( talk) 23:19, 21 January 2015 (UTC) wsjacobs
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Whoever added that information provided no sources, and quite frankly is a bunch of nonsense. No source on submarines ever made these kinds of claims. 2600:1700:6000:9CA0:34B7:C4D1:7E2E:617D ( talk) 09:47, 22 August 2019 (UTC)