Union Pacific Challenger

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Union Pacific Challenger

Quality:

Union Pacific Challenger - five classes of American simple articulated 4-6-6-4 locomotives. Article “Union Pacific Challenger” in English Wikipedia has 36.6 points for quality (as of July 1, 2026). The article contains 13 references and 9 sections.

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

In June 2026 the article “Union Pacific Challenger” was edited by 2 authors in English Wikipedia and written by 3 authors in all languages.

Since the creation of article “Union Pacific Challenger”, its content was written by 80 registered users of English Wikipedia and edited by 166 registered Wikipedia users in all languages.

The article is cited 38 times in English Wikipedia and cited 81 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #8039 in September 2023
  • Global: #49205 in September 2023

The highest popularity rank from 2008:

  • Local (English): #96873 in May 2019
  • Global: #80466 in June 2011

There are 9 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, 2026 (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)
Union Pacific Challenger
36.6428
2Polish (pl)
Union Pacific 3900
31.1512
3Italian (it)
Union Pacific Challenger
21.2932
4Thai (th)
ยูเนียนแปซิฟิก ชาลเลนเจอร์
18.4668
5Spanish (es)
Union Pacific Challenger
16.2709
6German (de)
UP-Klasse 3900
15.9953
7Hungarian (hu)
Union Pacific Challenger
9.935
8Russian (ru)
Union Pacific Challenger
7.8912
9Belarusian (be)
Union Pacific Challenger
2.0898
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 "Union Pacific Challenger" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Union Pacific Challenger
554 577
2German (de)
UP-Klasse 3900
74 085
3Russian (ru)
Union Pacific Challenger
62 098
4Polish (pl)
Union Pacific 3900
43 334
5Spanish (es)
Union Pacific Challenger
31 581
6Hungarian (hu)
Union Pacific Challenger
8 585
7Italian (it)
Union Pacific Challenger
5 347
8Belarusian (be)
Union Pacific Challenger
788
9Thai (th)
ยูเนียนแปซิฟิก ชาลเลนเจอร์
177
More...

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

Most popular in June 2026

The most popular language versions of the article "Union Pacific Challenger" in June 2026
#LanguagePopularity awardRelative popularity
1English (en)
Union Pacific Challenger
6 336
2German (de)
UP-Klasse 3900
370
3Russian (ru)
Union Pacific Challenger
156
4Polish (pl)
Union Pacific 3900
152
5Spanish (es)
Union Pacific Challenger
136
6Italian (it)
Union Pacific Challenger
100
7Hungarian (hu)
Union Pacific Challenger
56
8Belarusian (be)
Union Pacific Challenger
5
9Thai (th)
ยูเนียนแปซิฟิก ชาลเลนเจอร์
4
More...

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

The highest AI

Language versions of the article "Union Pacific Challenger" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Union Pacific Challenger
80
2German (de)
UP-Klasse 3900
38
3Polish (pl)
Union Pacific 3900
14
4Russian (ru)
Union Pacific Challenger
13
5Italian (it)
Union Pacific Challenger
7
6Spanish (es)
Union Pacific Challenger
5
7Hungarian (hu)
Union Pacific Challenger
4
8Thai (th)
ยูเนียนแปซิฟิก ชาลเลนเจอร์
3
9Belarusian (be)
Union Pacific Challenger
2
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 2026

Language versions of the article "Union Pacific Challenger" with the highest AI in June 2026
#LanguageAI awardRelative AI
1English (en)
Union Pacific Challenger
2
2Italian (it)
Union Pacific Challenger
1
3Belarusian (be)
Union Pacific Challenger
0
4German (de)
UP-Klasse 3900
0
5Spanish (es)
Union Pacific Challenger
0
6Hungarian (hu)
Union Pacific Challenger
0
7Polish (pl)
Union Pacific 3900
0
8Russian (ru)
Union Pacific Challenger
0
9Thai (th)
ยูเนียนแปซิฟิก ชาลเลนเจอร์
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 "Union Pacific Challenger" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Union Pacific Challenger
38
2Russian (ru)
Union Pacific Challenger
13
3Hungarian (hu)
Union Pacific Challenger
8
4German (de)
UP-Klasse 3900
7
5Spanish (es)
Union Pacific Challenger
4
6Italian (it)
Union Pacific Challenger
4
7Polish (pl)
Union Pacific 3900
4
8Belarusian (be)
Union Pacific Challenger
2
9Thai (th)
ยูเนียนแปซิฟิก ชาลเลนเจอร์
1
More...

Scores

Estimated value for Wikipedia:
English:
Global:
Popularity in June 2026:
English:
Global:
Popularity in all years:
English:
Global:
Authors in June 2026:
English:
Global:
Registered authors in all years:
English:
Global:
Citations:
English:
Global:

Quality measures

Interwikis

#LanguageValue
beBelarusian
Union Pacific Challenger
deGerman
UP-Klasse 3900
enEnglish
Union Pacific Challenger
esSpanish
Union Pacific Challenger
huHungarian
Union Pacific Challenger
itItalian
Union Pacific Challenger
plPolish
Union Pacific 3900
ruRussian
Union Pacific Challenger
thThai
ยูเนียนแปซิฟิก ชาลเลนเจอร์

Popularity rank trends

Best Rank English:
#96873
05.2019
Global:
#80466
06.2011

AI rank trends

Best Rank English:
#8039
09.2023
Global:
#49205
09.2023

Local AI rank history

Languages comparison

Important global interconnections (July 2025 – June 2026)

Wikipedia readers most often find their way to information on Union Pacific Challenger from Wikipedia articles about Union Pacific Big Boy, Union Pacific 3985, 4-6-6-4, Union Pacific 4014 and List of largest locomotives. Whereas reading the article about Union Pacific Challenger people most often go to Wikipedia articles on Union Pacific 3985, Union Pacific Big Boy, Union Pacific FEF series, 4-6-6-4 and Union Pacific 4014.

Cumulative results of quality and popularity of the Wikipedia article

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

News from 1 July 2026

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

In English Wikipedia the most popular articles on that day were: 2026 FIFA World Cup, Harry Kane, Julián Quiñones, List of FIFA World Cup top goalscorers, Kylian Mbappé, Democratic Republic of the Congo, Erling Haaland, DR Congo national football team, Melat Kiros, FIFA World Cup.

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 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information