U-397

U-397 - 1943 Type VIIC submarine. Article “U-397” in Portuguese Wikipedia has 19.2 points for quality (as of July 1, 2025). The article contains 7 references and 5 sections.

This article has the best quality in Vietnamese Wikipedia. However, the most popular language version of this article is English.

Since the creation of article “U-397”, its content was written by 2 registered users of Portuguese Wikipedia and edited by 48 registered Wikipedia users in all languages.

The article is cited 576 times in Portuguese Wikipedia and cited 5342 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Portuguese): #44396 in October 2023
• Global: #138935 in June 2016

The highest popularity rank from 2008:

• Local (Portuguese): #317885 in May 2015
• Global: #1469841 in July 2023

There are 10 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	Vietnamese (vi) U-397 (tàu ngầm Đức)		37.9796
2	English (en) German submarine U-397		21.6811
3	Portuguese (pt) U-397		19.2016
4	Arabic (ar) الغواصة الألمانية يو-397		13.9811
5	Ukrainian (uk) U-397		13.9287
6	Spanish (es) Submarino U-397		12.2971
7	French (fr) Unterseeboot 397		10.3872
8	Russian (ru) U-397		7.6766
9	Slovenian (sl) U-397		6.8555
10	Persian (fa) زیردریایی یو-۳۹۷		1.1833

More...

The following table shows the most popular language versions of the article.

The most popular language versions of the article "U-397" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) German submarine U-397		8 995
2	Russian (ru) U-397		4 308
3	French (fr) Unterseeboot 397		1 433
4	Portuguese (pt) U-397		1 248
5	Slovenian (sl) U-397		924
6	Spanish (es) Submarino U-397		607
7	Arabic (ar) الغواصة الألمانية يو-397		416
8	Persian (fa) زیردریایی یو-۳۹۷		377
9	Vietnamese (vi) U-397 (tàu ngầm Đức)		114
10	Ukrainian (uk) U-397		51

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The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "U-397" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) German submarine U-397		38
2	French (fr) Unterseeboot 397		14
3	Russian (ru) U-397		9
4	Vietnamese (vi) U-397 (tàu ngầm Đức)		9
5	Spanish (es) Submarino U-397		7
6	Slovenian (sl) U-397		5
7	Portuguese (pt) U-397		4
8	Persian (fa) زیردریایی یو-۳۹۷		3
9	Ukrainian (uk) U-397		3
10	Arabic (ar) الغواصة الألمانية يو-397		2

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The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "U-397" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) German submarine U-397		17
2	French (fr) Unterseeboot 397		11
3	Spanish (es) Submarino U-397		4
4	Persian (fa) زیردریایی یو-۳۹۷		3
5	Russian (ru) U-397		3
6	Ukrainian (uk) U-397		3
7	Portuguese (pt) U-397		2
8	Slovenian (sl) U-397		2
9	Vietnamese (vi) U-397 (tàu ngầm Đức)		2
10	Arabic (ar) الغواصة الألمانية يو-397		1

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The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "U-397" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Vietnamese (vi) U-397 (tàu ngầm Đức)		1
2	Arabic (ar) الغواصة الألمانية يو-397		0
3	English (en) German submarine U-397		0
4	Spanish (es) Submarino U-397		0
5	Persian (fa) زیردریایی یو-۳۹۷		0
6	French (fr) Unterseeboot 397		0
7	Portuguese (pt) U-397		0
8	Russian (ru) U-397		0
9	Slovenian (sl) U-397		0
10	Ukrainian (uk) U-397		0

More...

The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "U-397" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	Arabic (ar) الغواصة الألمانية يو-397		1 151
2	English (en) German submarine U-397		929
3	French (fr) Unterseeboot 397		713
4	Ukrainian (uk) U-397		649
5	Slovenian (sl) U-397		587
6	Portuguese (pt) U-397		576
7	Vietnamese (vi) U-397 (tàu ngầm Đức)		355
8	Russian (ru) U-397		296
9	Persian (fa) زیردریایی یو-۳۹۷		84
10	Spanish (es) Submarino U-397		2

More...

#	Language	Value
ar	Arabic الغواصة الألمانية يو-397
en	English German submarine U-397
es	Spanish Submarino U-397
fa	Persian زیردریایی یو-۳۹۷
fr	French Unterseeboot 397
pt	Portuguese U-397
ru	Russian U-397
sl	Slovenian U-397
uk	Ukrainian U-397
vi	Vietnamese U-397 (tàu ngầm Đức)

Best Rank

Portuguese: #317885 05.2015

Global: #1469841 07.2023

Best Rank

Portuguese: #44396 10.2023

Global: #138935 06.2016

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The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information