Tumansky RD-9

The Tumansky RD-9 (initially designated Mikulin AM-5) was an early Soviet turbojet engine, not based on pre-existing German or British designs. The AM-5, developed by scaling down the AM-3, was available in 1952 and completed testing in 1953; it produced 25.5 kN thrust without afterburner. The AM-5 engine is notable for making possible the first mass-produced supersonic interceptors such as the MiG-19, and the first Soviet all-weather area interceptor, the Yak-25. When Sergei Tumansky replaced Alexander Mikulin as the OKB-24's chief designer in 1956, the engine was renamed RD-9. The engine was later built under license in China as the WP-6.

Variants and applications

 * RD-9A:
 * RD-9B: Used in the East German civilian jetliner project Baade 152 in 1958 and 1959, replaced when Pirna 014 engines became available.
 * RD-9AK: Non-afterburning versions for the Yak-25 and Yak-26.
 * RD-9AF-300: Afterburning version for the Yak-27 and Yak-28.
 * RD-9AF2-300: Afterburning version for the Yak-27 and Yak-28.
 * RD-9B: Afterburning version for the early variants of MiG-19.
 * RD-9BK: Version for Lavochkin La-17M.
 * RD-9BF-811: Afterburning version for the later variants of MiG-19.
 * RD-9V: Afterburning version used in the Ilyushin Il-40P.
 * WP-6: Chinese built version for the Shenyang J-6.
 * WP-6A: a Chinese upgraded version for the Nanchang Q-5 and J-6C.
 * WP-6Z: further developed for the cancelled Nanchang J-12
 * NK-TJ: North Korean version built for MiG-19 and Shenyang J-6