Talk:Sukhoi Su-9

This article is within the scope of the Aviation WikiProject. If you would like to participate, please visit the project page, where you can join the project and see lists of open tasks and task forces. To use this banner, please see the full instructions.AviationWikipedia:WikiProject AviationTemplate:WikiProject Aviationaviation articles

This article has been checked against the following criteria for B-class status:
Referencing and citation: criterion not met Coverage and accuracy: criterion met Structure: criterion met Grammar and style: criterion met Supporting materials: criterion met

Associated projects or task forces:
/
	This article is supported by the aircraft project.
	This article is supported by the Soviet aviation task force.

Russia: Technology & engineering / Military Mid‑importance

	Russia portal This article is within the scope of WikiProject Russia, a WikiProject dedicated to coverage of Russia on Wikipedia. To participate: Feel free to edit the article attached to this page, join up at the project page, or contribute to the project discussion.RussiaWikipedia:WikiProject RussiaTemplate:WikiProject RussiaRussia articles
Mid	This article has been rated as Mid-importance on the project's importance scale.
	This article is supported by the technology and engineering in Russia task force.
	This article is supported by the Russian, Soviet, and CIS military history task force.

Military history: Aviation / Russian & Soviet C‑class

This article is within the scope of the Military history WikiProject. If you would like to participate, please visit the project page, where you can join the project and see a list of open tasks. To use this banner, please see the full instructions.Military historyWikipedia:WikiProject Military historyTemplate:WikiProject Military historymilitary history articles

C

This article has been rated as C-class on the project's quality scale.

This article has been checked against the following criteria for B-class status:
Referencing and citation: criterion not met Coverage and accuracy: criterion met Structure: criterion met Grammar and style: criterion met Supporting materials: criterion met

Associated task forces:
/
	Military aviation task force
	Russian, Soviet and CIS military history task force

First flight

Was 24 June 1956 the date of first flight or first public display? Drutt (talk) 20:56, 18 April 2008 (UTC)[reply]

This development history makes no mention of a "T-405", however it mentions a "T-3" prototype which flew on 26 May 1956. What was the T-405? Drutt (talk) 21:35, 18 April 2008 (UTC)[reply]

The T-405 was Construction number 405 (i.e. the 5th aircraft of the 4th production batch), which was used for record-breaking in 1960. The paperwork handed to the FAI stated the aircraft to be a T-405Petebutt (talk) 00:49, 19 March 2010 (UTC)[reply]

The first flight of the prototype of the Su-9 (T-43-1) was on 10 October 1957. At the time there were several other closely related prototypes floating about but T-43-1 was the first true prototype of the Su-9.

Su-9 and MiG-21

Just wondering, how come the airframe looks almost identical to the MiG-21's? Did they have different mission profiles? Did one of the bureaus come up with the airframe and then license it to the other for modification? Masterblooregard (talk) 03:00, 20 April 2008 (UTC)[reply]

According to this article the aerodynamic specifications were determined by the air ministry, not the individual bureaus:

As was the custom in the Soviet aerospace industry, the aerodynamics of the Ye-1 were to be based on concepts suggested by the state Central Aerodynamics & Hydrodynamics Institute (known as TsAGI in its Russian acronym).

Drutt (talk) 18:04, 20 April 2008 (UTC)[reply]

The section on distinguishing the Su-9 from the MiG-21 due to the bubble canopy is only partially correct. Early MiG-21s and most of the Chinese derivatives also had a bubble canopy. — Preceding unsigned comment added by 50.92.179.13 (talk) 08:54, 3 February 2013 (UTC)[reply]

As can be seen throughout the 1950's and 60's, if you give aircraft designers in separate countries, with no contact, the same specification they will probably design aircraft with very similar characteristics

- Vickers Vanguard - ilyushin Il-18
- Vickers VC-10 - Ilyushin Il-62
- Concorde - TupolevTu-144
- de Havilland Comet - Tupolev Tu-104
- North American XB-70 Valkyrie - Sukhoi T-4

The list is endlessPetebutt (talk) 01:01, 19 March 2010 (UTC)[reply]

External links modified (January 2018)

Hello fellow Wikipedians,

I have just modified one external link on Sukhoi Su-9. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

Added archive https://web.archive.org/web/20060720153511/http://napo.ru/eng/?id=26 to http://www.napo.ru/eng/?id=26

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 10:59, 23 January 2018 (UTC)[reply]

Incorrect speed

The specifications state that the maximum speed is "2,120 km/h (1,320 mph, 1,140 kn) / M1.73 at 13,000 m". This implies that Mach 1=1225, which is correct at sea level. However, at 13,000 m, it is around 1064 km/h. If the speed in km/h is correct, then the mach number should be 1.99. If the speed in mach number is correct, then the km/h should be 1840 km/h. Unfortunately, I do not have references to confirm either.

Diego bf109 (talk) 01:46, 16 July 2021 (UTC)[reply]