Union Pacific Challenger

it

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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 Italian Wikipedia has 21.3 points for quality (as of July 1, 2025). The article contains 7 references and 9 sections.

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

Since the creation of article “Union Pacific Challenger”, its content was written by 5 registered users of Italian Wikipedia and edited by 162 registered Wikipedia users in all languages.

The article is cited 4 times in Italian Wikipedia and cited 90 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (Italian): #13406 in June 2022
  • Global: #49073 in September 2023

The highest popularity rank from 2008:

  • Local (Italian): #238791 in December 2024
  • Global: #79786 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, 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)
Union Pacific Challenger
36.741
2Polish (pl)
Union Pacific 3900
31.171
3Italian (it)
Union Pacific Challenger
21.3484
4Thai (th)
ยูเนียนแปซิฟิก ชาลเลนเจอร์
18.8698
5Spanish (es)
Union Pacific Challenger
16.4518
6German (de)
UP-Klasse 3900
16.4224
7Hungarian (hu)
Union Pacific Challenger
9.9369
8Russian (ru)
Union Pacific Challenger
7.8754
9Belarusian (be)
Union Pacific Challenger
2.0933
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
513 532
2German (de)
UP-Klasse 3900
69 093
3Russian (ru)
Union Pacific Challenger
59 588
4Polish (pl)
Union Pacific 3900
41 497
5Spanish (es)
Union Pacific Challenger
29 975
6Hungarian (hu)
Union Pacific Challenger
8 100
7Italian (it)
Union Pacific Challenger
4 085
8Belarusian (be)
Union Pacific Challenger
739
9Thai (th)
ยูเนียนแปซิฟิก ชาลเลนเจอร์
98
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 "Union Pacific Challenger" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Union Pacific Challenger
2 352
2German (de)
UP-Klasse 3900
226
3Russian (ru)
Union Pacific Challenger
190
4Spanish (es)
Union Pacific Challenger
112
5Italian (it)
Union Pacific Challenger
109
6Polish (pl)
Union Pacific 3900
103
7Hungarian (hu)
Union Pacific Challenger
42
8Thai (th)
ยูเนียนแปซิฟิก ชาลเลนเจอร์
12
9Belarusian (be)
Union Pacific Challenger
3
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
78
2German (de)
UP-Klasse 3900
38
3Polish (pl)
Union Pacific 3900
14
4Russian (ru)
Union Pacific Challenger
13
5Spanish (es)
Union Pacific Challenger
5
6Italian (it)
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 2025

Language versions of the article "Union Pacific Challenger" with the highest AI in June 2025
#LanguageAI awardRelative AI
1English (en)
Union Pacific Challenger
1
2Belarusian (be)
Union Pacific Challenger
0
3German (de)
UP-Klasse 3900
0
4Spanish (es)
Union Pacific Challenger
0
5Hungarian (hu)
Union Pacific Challenger
0
6Italian (it)
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
42
2Russian (ru)
Union Pacific Challenger
16
3German (de)
UP-Klasse 3900
8
4Hungarian (hu)
Union Pacific Challenger
8
5Polish (pl)
Union Pacific 3900
5
6Spanish (es)
Union Pacific Challenger
4
7Italian (it)
Union Pacific Challenger
4
8Belarusian (be)
Union Pacific Challenger
2
9Thai (th)
ยูเนียนแปซิฟิก ชาลเลนเจอร์
1
More...

Scores

Estimated value for Wikipedia:
Italian:
Global:
Popularity in June 2025:
Italian:
Global:
Popularity in all years:
Italian:
Global:
Authors in June 2025:
Italian:
Global:
Registered authors in all years:
Italian:
Global:
Citations:
Italian:
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 Italian:
#238791
12.2024
Global:
#79786
06.2011

AI rank trends

Best Rank Italian:
#13406
06.2022
Global:
#49073
09.2023

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Union Pacific Challenger from Wikipedia articles about Union Pacific Big Boy, 4-6-6-4, List of largest locomotives, Union Pacific 3985 and Union Pacific 4014. 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 28 January 2026

On 28 January 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2025–26 UEFA Champions League, Nipah virus, Doomsday Clock, UEFA Champions League, Elena Rybakina, Donald Trump, 2026 European Men's Handball Championship, killing of Alex Pretti, Kristi Noem, deaths in 2026.

In Italian Wikipedia the most popular articles on that day were: Niscemi, Morbo di K, Antonio Vergara, Moussa Diaby, Giovanni Borromeo, Antonio Chichiarelli, Il falsario (film 2025), Marty Supreme, I giorni del cielo, United States Immigration and Customs Enforcement.

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