Straight-nine engine

Straight-nine - inline piston engine with nine cylinders. Article “Straight-nine engine” in English Wikipedia has 14 points for quality (as of July 1, 2025). The article contains 2 references and 1 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 0.74 points.

In this language version of Wikipedia the article has the best quality. Also, this article is the most popular in that (English) language version.

Since the creation of article “Straight-nine engine”, its content was written by 21 registered users of English Wikipedia and edited by 41 registered Wikipedia users in all languages.

The article is cited 105 times in English Wikipedia and cited 276 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #121064 in January 2025
• Global: #389086 in January 2025

The highest popularity rank from 2008:

• Local (English): #384408 in March 2024
• Global: #603240 in January 2008

There are 6 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	English (en) Straight-nine engine		14.0128
2	Portuguese (pt) Motor de nove cilindros em linha		4.946
3	Persian (fa) موتور نه سیلندر خطی		2.8586
4	Japanese (ja) 直列9気筒		1.4856
5	Italian (it) Motore in linea a nove cilindri		1.0632
6	Norwegian (no) Rekkenier		0.9359

More...

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

The most popular language versions of the article "Straight-nine engine" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Straight-nine engine		124 994
2	Japanese (ja) 直列9気筒		29 938
3	Portuguese (pt) Motor de nove cilindros em linha		11 995
4	Persian (fa) موتور نه سیلندر خطی		1 225
5	Italian (it) Motore in linea a nove cilindri		360
6	Norwegian (no) Rekkenier		144

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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 "Straight-nine engine" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Straight-nine engine		362
2	Japanese (ja) 直列9気筒		90
3	Portuguese (pt) Motor de nove cilindros em linha		16
4	Italian (it) Motore in linea a nove cilindri		14
5	Persian (fa) موتور نه سیلندر خطی		4
6	Norwegian (no) Rekkenier		3

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

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

#	Language	AI award	Relative AI
1	English (en) Straight-nine engine		21
2	Japanese (ja) 直列9気筒		5
3	Persian (fa) موتور نه سیلندر خطی		4
4	Italian (it) Motore in linea a nove cilindri		4
5	Portuguese (pt) Motor de nove cilindros em linha		4
6	Norwegian (no) Rekkenier		3

More...

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

Language versions of the article "Straight-nine engine" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	English (en) Straight-nine engine		0
2	Persian (fa) موتور نه سیلندر خطی		0
3	Italian (it) Motore in linea a nove cilindri		0
4	Japanese (ja) 直列9気筒		0
5	Norwegian (no) Rekkenier		0
6	Portuguese (pt) Motor de nove cilindros em linha		0

More...

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

Language versions of the article "Straight-nine engine" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Straight-nine engine		105
2	Japanese (ja) 直列9気筒		61
3	Italian (it) Motore in linea a nove cilindri		59
4	Portuguese (pt) Motor de nove cilindros em linha		48
5	Persian (fa) موتور نه سیلندر خطی		2
6	Norwegian (no) Rekkenier		1

More...

#	Language	Value
en	English Straight-nine engine
fa	Persian موتور نه سیلندر خطی
it	Italian Motore in linea a nove cilindri
ja	Japanese 直列9気筒
no	Norwegian Rekkenier
pt	Portuguese Motor de nove cilindros em linha

Best Rank

English: #384408 03.2024

Global: #603240 01.2008

Best Rank

English: #121064 01.2025

Global: #389086 01.2025

On 10 March 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: Iran, Mojtaba Khamenei, Enhypen, Ali Khamenei, Strait of Hormuz, Jeffrey Epstein, 2026 Iran war, 2026 World Baseball Classic, Donald Trump, World Baseball Classic.

In English Wikipedia the most popular articles on that day were: 2026 Iran war, Mojtaba Khamenei, Deaths in 2026, Ali Khamenei, War Machine (upcoming film), Enhypen, Jennifer Runyon, Pete Hegseth, 2026 World Baseball Classic, Iran.

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