Napier Deltic

de

WikiRank.net
ver. 1.6.2

Napier Deltic

Quality:

Napier Deltic - opposed-piston engine used in marine, firefighting and BR locomotive applications. Article “Napier Deltic” in German Wikipedia has 23.8 points for quality (as of July 1, 2025). The article contains 3 references and 8 sections.

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

Since the creation of article “Napier Deltic”, its content was written by 54 registered users of German Wikipedia and edited by 212 registered Wikipedia users in all languages.

The article is cited 48 times in German Wikipedia and cited 650 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (German): #18791 in March 2006
  • Global: #24488 in August 2003

The highest popularity rank from 2008:

  • Local (German): #42232 in April 2025
  • Global: #27436 in May 2015

There are 12 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.

Languages with the highest quality

#LanguageQuality gradeQuality score
1English (en)
Napier Deltic
50.3619
2Spanish (es)
Napier Deltic
29.7236
3Slovak (sk)
Trojuholníkový motor
25.4711
4German (de)
Napier Deltic
23.8462
5Russian (ru)
Дельтообразный двигатель внутреннего сгорания
21.5777
6Japanese (ja)
ネイピア デルティック
21.215
7Polish (pl)
Napier Deltic
19.2368
8Simple English (simple)
Napier Deltic
16.2465
9Slovenian (sl)
Napier Deltic motor
10.9812
10Persian (fa)
موتور مثلثی نپیر
8.5549
More...

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

Most popular in all the time

The most popular language versions of the article "Napier Deltic" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Napier Deltic
1 532 731
2German (de)
Napier Deltic
232 813
3Russian (ru)
Дельтообразный двигатель внутреннего сгорания
68 065
4Japanese (ja)
ネイピア デルティック
60 930
5Polish (pl)
Napier Deltic
23 481
6Spanish (es)
Napier Deltic
19 623
7Italian (it)
Napier Deltic
8 221
8Slovak (sk)
Trojuholníkový motor
7 842
9Czech (cs)
Napier Deltic
6 032
10Persian (fa)
موتور مثلثی نپیر
1 491
More...

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

Most popular in June 2025

The most popular language versions of the article "Napier Deltic" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Napier Deltic
7 268
2German (de)
Napier Deltic
777
3Japanese (ja)
ネイピア デルティック
285
4Simple English (simple)
Napier Deltic
182
5Spanish (es)
Napier Deltic
155
6Italian (it)
Napier Deltic
122
7Polish (pl)
Napier Deltic
100
8Russian (ru)
Дельтообразный двигатель внутреннего сгорания
100
9Czech (cs)
Napier Deltic
39
10Slovak (sk)
Trojuholníkový motor
22
More...

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

The highest AI

Language versions of the article "Napier Deltic" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Napier Deltic
90
2German (de)
Napier Deltic
54
3Spanish (es)
Napier Deltic
14
4Russian (ru)
Дельтообразный двигатель внутреннего сгорания
12
5Japanese (ja)
ネイピア デルティック
11
6Italian (it)
Napier Deltic
9
7Polish (pl)
Napier Deltic
6
8Czech (cs)
Napier Deltic
4
9Simple English (simple)
Napier Deltic
4
10Persian (fa)
موتور مثلثی نپیر
3
More...

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

The highest AI in June 2025

Language versions of the article "Napier Deltic" with the highest AI in June 2025
#LanguageAI awardRelative AI
1Japanese (ja)
ネイピア デルティック
1
2Czech (cs)
Napier Deltic
0
3German (de)
Napier Deltic
0
4English (en)
Napier Deltic
0
5Spanish (es)
Napier Deltic
0
6Persian (fa)
موتور مثلثی نپیر
0
7Italian (it)
Napier Deltic
0
8Polish (pl)
Napier Deltic
0
9Russian (ru)
Дельтообразный двигатель внутреннего сгорания
0
10Simple English (simple)
Napier Deltic
0
More...

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

The highest CI

Language versions of the article "Napier Deltic" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Napier Deltic
166
2Russian (ru)
Дельтообразный двигатель внутреннего сгорания
117
3Slovak (sk)
Trojuholníkový motor
100
4Japanese (ja)
ネイピア デルティック
67
5Italian (it)
Napier Deltic
64
6German (de)
Napier Deltic
48
7Slovenian (sl)
Napier Deltic motor
41
8Polish (pl)
Napier Deltic
32
9Spanish (es)
Napier Deltic
7
10Czech (cs)
Napier Deltic
5
More...

Scores

Estimated value for Wikipedia:
German:
Global:
Popularity in June 2025:
German:
Global:
Popularity in all years:
German:
Global:
Authors in June 2025:
German:
Global:
Registered authors in all years:
German:
Global:
Citations:
German:
Global:

Quality measures

Interwikis

#LanguageValue
csCzech
Napier Deltic
deGerman
Napier Deltic
enEnglish
Napier Deltic
esSpanish
Napier Deltic
faPersian
موتور مثلثی نپیر
itItalian
Napier Deltic
jaJapanese
ネイピア デルティック
plPolish
Napier Deltic
ruRussian
Дельтообразный двигатель внутреннего сгорания
simpleSimple English
Napier Deltic
skSlovak
Trojuholníkový motor
slSlovenian
Napier Deltic motor

Popularity rank trends

Best Rank German:
#42232
04.2025
Global:
#27436
05.2015

AI rank trends

Best Rank German:
#18791
03.2006
Global:
#24488
08.2003

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Napier Deltic from Wikipedia articles about British Rail Class 55, Zvezda M503, Opposed-piston engine, Junkers Jumo 223 and Deltic. Whereas reading the article about Napier Deltic people most often go to Wikipedia articles on Junkers Jumo 223, British Rail Class 55, Fairbanks-Morse 38 8-1/8 diesel engine, Zvezda M503 and British Rail Class 23.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 15 February 2026

On 15 February 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: Jeffrey Epstein, Wuthering Heights, 2026 Winter Olympics, Epstein files, Ilia Malinin, Wuthering Heights, Ghislaine Maxwell, Lucas Pinheiro Braathen, 2026 Winter Olympics medal table, Valentine's Day.

In German Wikipedia the most popular articles on that day were: Jeffrey Epstein, Cordelia Wege, Polizeiruf 110: Der Wanderer zieht von dannen, Lawrence von Arabien (Film), Medaillenspiegel der Olympischen Winterspiele 2026, Peter Kurth (Schauspieler), Die Tribute von Panem – The Ballad of Songbirds and Snakes, Olympische Winterspiele 2026/Eishockey (Herren), Olympische Winterspiele 2026, Federica Brignone.

About WikiRank

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