Talk:Sukhoi Su-9

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[edit] First flight

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

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)

[edit] 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)

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)