Soyuz Scientific Production Association (Russian: Московское научно-производственное предприятие (МНПК) "Союз") is a company based in Moscow, Russia.

The Moscow Soyuz Scientific Production Complex was founded by Alexander Mikulin as an experimental design bureau in 1943.

[1] As the Tumanskiy OKB, the bureau produced designs for the RD-9 (used in the MiG-19 Farmer), the RD-11/RD-13/RD-25 (used in the many variants of the MiG-21 Fishbed), the R-195 (used in the Su-25 Frogfoot), the R-15 (used in the MiG-25 Foxbat), the RU-19 auxiliary power unit, the R-27/R-29 (used in the MiG-23/27 Flogger), and the R-79 (intended as the main thrust engine in the Yak-141 Freestyle).

03/25/2022 The Administration of the Republic of Tatarstan held a meeting on the issue of resuming the Tu-324 aircraft construction program.

03/28/2022 Deputy Prime Minister of Russia Yury Borisov together with the President of Tatarstan Rustam Minnikhanov visited the Kazan Aviation Plant.

The developer's website contains a table with the characteristics of the R579-300 turbojet engine in various versions, including options for VTOL aircraft with a maximum afterburner thrust of up to 21-23 thousand kgf.

It's the possibility of connecting a load with a power of more than 40 MW on the shaft, and also has a gas-dynamic stability margin of more than 34% and at mastered temperatures, existing materials in OJSC "AMNTK" Soyuz ".