Visual approach slope indicator (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Visual approach slope indicator" in English language version.

Last modified: 23:52:11, 28 May 2026 (UTC)

Ref.Un. Ref.Website

Global rank English rank

985^th place

575^th place

22web.archive.org

1^st place

1^st place

11skybrary.aero

low place

8,972^nd place

11files.wordpress.com

965^th place

868^th place

414^th place

225^th place

af.mil (Global: 414^th place; English: 225^th place)

columbus.af.mil

DoD Flight Information Publication (Enroute) - Flight Information Handbook (PDF). St. Louis, Missouri: National Geospatial-Intelligence Agency. 2018. pp. B-34. Archived (PDF) from the original on 2021-08-29.

faa.gov (Global: 985^th place; English: 575^th place)

faa.gov

"Chapter 14: Airport Operations". Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C ed.). Federal Aviation Administration. 2023. p. 17. Archived from the original on 2023-06-20.
"Chapter 9. Navigation Systems". Instrument Flying Handbook (PDF) (FAA-H-8083-15B ed.). Federal Aviation Administration Flight Standards Service. 2012. p. 38. This article incorporates text from this source, which is in the public domain.

adip.faa.gov

"Airport Data and Information Portal". adip.faa.gov. Federal Aviation Administration. Retrieved 2022-05-09.

files.wordpress.com (Global: 965^th place; English: 868^th place)

skylibrarys.files.wordpress.com

"Annex 14 to the Convention on International Civil Aviation. Aerodromes. Volume 1, Aerodrome Design and Operations" (PDF). ICAO. Retrieved 1 March 2023. deletion of specifications on VASIS (AVASIS) and 3-BAR VASIS (3-BAR AVASIS)

skybrary.aero (Global: low place; English: 8,972^nd place)

Skybrary

web.archive.org (Global: 1^st place; English: 1^st place)

"Chapter 14: Airport Operations". Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C ed.). Federal Aviation Administration. 2023. p. 17. Archived from the original on 2023-06-20.
DoD Flight Information Publication (Enroute) - Flight Information Handbook (PDF). St. Louis, Missouri: National Geospatial-Intelligence Agency. 2018. pp. B-34. Archived (PDF) from the original on 2021-08-29.