The Progress D-436 is a triple-spool high-bypass turbofan engine developed by the Ukrainian company Ivchenko-Progress during the Soviet era, and manufactured by Motor Sich in Ukraine.

[1] It was initially developed to meet the requirements for late versions of the Yakovlev Yak-42 and the Antonov An-72 in the 1980s.

The D-436 incorporated an updated, higher RPM fan, a lower emissions combustor, and new compressor sections.

The Motor-Sich plant in Zaporozhie, where the assembly line for D-436 engines was located,[3] was destroyed by Russian forces in late May 2022 following the 2022 Russian invasion of Ukraine.

[4] Data from Elodie Roux,[15] page 159 Related development