This article is within the scope of the Military history WikiProject. If you would like to participate, please visit the project page, where you can join the project and see a list of open tasks. To use this banner, please see the full instructions.Military historyWikipedia:WikiProject Military historyTemplate:WikiProject Military historymilitary history articles
This article has been checked against the following criteria for B-class status:
This article is within the scope of WikiProject Japan, a collaborative effort to improve the coverage of Japan-related articles on Wikipedia. If you would like to participate, please visit the project page, where you can join the project, participate in relevant discussions, and see lists of open tasks. Current time in Japan: 05:50, July 12, 2024 (JST, Reiwa6) (Refresh)JapanWikipedia:WikiProject JapanTemplate:WikiProject JapanJapan-related articles
This article is within the scope of WikiProject Ships, a project to improve all Ship-related articles. If you would like to help improve this and other articles, please join the project, or contribute to the project discussion. All interested editors are welcome. To use this banner, please see the full instructions.ShipsWikipedia:WikiProject ShipsTemplate:WikiProject ShipsShips articles
This article has been given a rating which conflicts with the project-independent quality rating in the banner shell. Please resolve this conflict if possible.
This article is within the scope of WikiProject Shipwrecks, a collaborative effort to improve the coverage of shipwreck-related articles on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.ShipwrecksWikipedia:WikiProject ShipwrecksTemplate:WikiProject ShipwrecksShipwreck articles
This article has been given a rating which conflicts with the project-independent quality rating in the banner shell. Please resolve this conflict if possible.
According to this she was sunk by air attack on 29 Nov. 1943, not depth-charged by a destroyer on 4 February 1944. Which is correct? Drutt (talk) 20:19, 22 June 2008 (UTC)[reply]
Interesting article, including the info that this sub participated in the attack on Sydney Harbour in 1942. Do we have a naval researcher who can provide more detailed info than is provided in the attack article? Cheers Bjenks (talk) 14:39, 14 August 2010 (UTC)[reply]
I have removed the infobox photo. That photo is actually of an earlier minelaying submarine renumbered from I-21 to I-121 when the new B Type submarine I-21 was built. The difference is fairly obvious because the B1 Type submarines mounted the deck gun aft and had a streamlined seaplane hangar forward of the conning tower where the older submarine carried its deck gun.Thewellman (talk) 22:14, 17 June 2012 (UTC)[reply]
I have just modified one external link on Japanese submarine I-21 (1940). Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.
This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).
If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
If you found an error with any archives or the URLs themselves, you can fix them with this tool.
I have just modified one external link on Japanese submarine I-21. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.
This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).
If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
If you found an error with any archives or the URLs themselves, you can fix them with this tool.
