Ivchenko-Progress
Ukrainian state aircraft-engine design bureau known for turbofans, turboprops, turboshafts, and propulsion systems used in civil and military aircraft.
Last updated August 26, 2026
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Overview
Ivchenko-Progress is a Ukrainian state design bureau based in Zaporizhzhia that develops aircraft engines, propulsion systems, industrial drives, and related special-purpose equipment. Its work covers civil and military aviation, including engines for transport aircraft, regional aircraft, helicopters, unmanned systems, and specialized platforms. The bureau traditionally separates design from serial production: Ivchenko-Progress develops the engineering concepts and technical documentation, while many of the resulting engines have been manufactured by Motor Sich, another major Zaporizhzhia aerospace company. The organization was established in 1945 under the leadership of aircraft-engine designer Oleksandr Ivchenko. Its early work centered on piston engines, many of which carried the AI designation. During the 1950s it moved into turbine propulsion, beginning work on the TS-12 in 1953. From the early 1960s onward, the bureau concentrated increasingly on bypass gas-turbine engines. Under Volodymyr Lotarev, it developed the D-36, which entered service in 1971 and became one of the important early Soviet high-bypass turbofans. The bureau's designs have powered aircraft and helicopters associated with Antonov, Beriev, Ilyushin, Tupolev, Mil, and Yakovlev. Its engines have also been used internationally. Notable applications include the D-18T on the Antonov An-124 and An-225 transport aircraft, the D-136 family on the Mil Mi-26 heavy-lift helicopter, and the AI-25TL on the Polish PZL M-15 Belphegor agricultural aircraft. These applications gave the organization a distinctive position in heavy transport and helicopter propulsion as well as in smaller turboprop and turbofan categories. Its portfolio includes the AI-20 and AI-24 turboprops, AI-25 and AI-22 turbofans, the AI-222 and AI-322 families for military and training applications, the D-36 and D-436 high-bypass engines, the D-27 propfan, and the D-136 turboshaft. Later collaborative work included the AI-450S turboprop developed with Motor Sich, including its proposed use in the Diamond DA50-JP7. Ivchenko-Progress engines have also been associated with modern unmanned and military platforms, including Turkey's Akinci strategic unmanned aircraft. The bureau's institutional identity changed over time. It operated as OKB-478 and later became associated with the Ivchenko-Lotarev name before adopting the Ivchenko-Progress designation. Its chief designers included Ivchenko, Lotarev, Fedir Muravchenko, and Ihor Kravchenko. The organization is administered within Ukraine's state defense-industrial structure. Because it is primarily a design and engineering institution rather than a consumer-facing manufacturer, its visibility comes mainly through the aircraft and engines using its technology rather than through a conventional retail brand.
History
Ivchenko-Progress originated in 1945 as an aircraft-engine design organization in Zaporizhzhia, then part of the Soviet Union and now Ukraine. It was led initially by Oleksandr Ivchenko, whose work focused on piston engines. These early designs used the AI designation and included engines intended for a range of Soviet light aircraft and helicopters. The bureau later became known as OKB-478 and, during a subsequent period, Ivchenko-Lotarev. A major technical transition began in 1953 with work on the TS-12 turbine engine. From the beginning of the 1960s, the organization increasingly concentrated on bypass gas-turbine propulsion. Under chief designer Volodymyr Lotarev, it developed the D-36, an early Soviet high-bypass turbofan that entered service in 1971. The D-36 established a design lineage that later included the D-436 and contributed to the bureau's long-term role in transport and regional aviation. The organization developed engines for aircraft and helicopters associated with many Soviet and Ukrainian manufacturers, including Antonov, Beriev, Ilyushin, Tupolev, Mil, and Yakovlev. Its propulsion systems became particularly important for large airlift aircraft and heavy helicopters. The D-18T powered the Antonov An-124 and An-225, while the D-136 turboshaft powered the Mil Mi-26. Other engines served regional aircraft, trainers, agricultural aircraft, light aircraft, and rotary-wing platforms. Polish manufacturer PZL-Mielec used the AI-25TL on the M-15 Belphegor cropduster. Leadership changed in 1968 from Ivchenko to Lotarev, in 1989 to Fedir Muravchenko, and in 2010 to Ihor Kravchenko. The modern Ivchenko-Progress ZMKB name reflects both its institutional continuity and its connection to the Progress design bureau identity. The bureau remains a design-centered enterprise: its engineers create engine concepts, specifications, and technical documentation, while production has often been carried out by Motor Sich in Zaporizhzhia. This division between design and manufacturing follows the structure common to the Soviet aerospace industry. The product range expanded beyond classic turbofans and turboprops to include propfans, turboshafts, turbojets, reciprocating engines, industrial drives, and special equipment. Collaborative development with Motor Sich included the AI-450S turboprop, which was selected for the Diamond DA50-JP7 prototype announced in 2015. Although Diamond subsequently pursued certification of its DA50 RG with a Continental CD-300 engine, the episode illustrated the bureau's efforts to place Ukrainian propulsion technology in contemporary international aircraft programs. In the military and unmanned-aircraft sphere, engines from the Ivchenko-Progress and Motor Sich family have also been associated with Turkey's Akinci unmanned aircraft. The bureau is administered within Ukraine's state defense-industrial system and continues to operate as an aerospace engineering organization. Its importance is measured less by consumer recognition than by the number and strategic significance of aircraft platforms using its designs, especially heavy transport aircraft, helicopters, and military propulsion systems.
- 2015
AI-450S-powered Diamond prototype flies
[1]Diamond Aircraft announced the first flight of the DA50-JP7 prototype powered by the AI-450S turboprop developed with Motor Sich.
- 2010
Ihor Kravchenko becomes chief designer
[1]Ihor Fedorovych Kravchenko succeeded Fedir Muravchenko as the bureau's chief designer and head.
- 1971
D-36 enters service
[1]The Lotarev D-36 became one of the early Soviet high-bypass turbofans and established an important family of transport-aircraft engines.
- 1953
Work begins on the TS-12 turbine engine
[1]The bureau entered turbine propulsion development with the TS-12 project.
- 1945
Design bureau established under Oleksandr Ivchenko
[1]The organization began aircraft-engine design work in Zaporizhzhia under Oleksandr Ivchenko, initially concentrating on piston engines.
Products and positioning
A state-backed Ukrainian aerospace engineering and propulsion-design institution serving civil, military, helicopter, transport-aircraft, and industrial applications.
High-bypass turbofan
D-18T
The D-18T is a large high-bypass turbofan associated with heavy transport aviation. It powers the Antonov An-124 and An-225, two of the most prominent heavy-lift aircraft programs linked to Ukrainian aerospace engineering. The engine represents Ivchenko-Progress's capability in large-scale transport propulsion.
High-bypass turbofan · 1971
D-36
Developed under Volodymyr Lotarev, the D-36 entered service in 1971 and became a foundational high-bypass turbofan design. It was intended for transport and regional aircraft and helped establish the bureau's reputation in bypass-engine technology.
High-bypass turbofan
D-436
The D-436 is a later high-bypass turbofan in the D-36 design lineage. It belongs to the bureau's transport and regional-aircraft propulsion portfolio and illustrates the continued development of Ukrainian bypass-engine technology.
Turboprop
AI-20
The AI-20 is a major Ivchenko turboprop family used in Soviet and post-Soviet aviation. Its inclusion in the bureau's historical portfolio reflects the organization's long experience with durable propulsion for transport and utility aircraft.
Turboprop
AI-24
The AI-24 is a turboprop design associated with regional and utility aircraft. It forms part of the bureau's established AI series and demonstrates its role in developing engines for medium-power aviation applications.
Turboshaft
D-136
The D-136, also identified with the AI-136 designation, is a turboshaft engine used on the Mil Mi-26 heavy-lift helicopter. Its application on the world's largest production helicopter made it one of the bureau's most visible rotary-wing propulsion designs.
Propfan
D-27
The D-27 is a propfan engine developed for advanced turboprop-like transport applications. It reflects Ivchenko-Progress's work beyond conventional turbofans and turboprops, combining turbine power with highly efficient propulsive systems.
Turbofan
AI-25TL
The AI-25TL is a compact turbofan used in trainer and specialized aircraft applications. Polish manufacturer PZL-Mielec selected it for the M-15 Belphegor agricultural aircraft, giving the engine an unusual role in crop-dusting aviation.
Turbofan
AI-222
The AI-222 is a modern turbofan family associated with military training and light combat-aircraft applications. It belongs to the bureau's effort to maintain a presence in smaller high-performance turbine engines in addition to its historic heavy-transport portfolio.
Turboprop
AI-450S
The AI-450S, including the AI-450S2 variant, is a compact turboprop developed with Motor Sich. Diamond Aircraft announced a DA50-JP7 prototype using the engine in 2015. The family has also been associated with unmanned-aircraft and light-aircraft propulsion applications.
Brand decisions
2015
AI-450S collaboration for the Diamond DA50-JP7Product launchBackground
Ivchenko-Progress and Motor Sich sought applications for a compact turboprop in contemporary international light-aircraft programs.
Action taken
Diamond Aircraft flew a DA50-JP7 prototype equipped with the jointly developed AI-450S.
Aftermath
Diamond later pursued certification of the DA50 RG with a Continental CD-300 engine rather than the AI-450S configuration.
1971
Introduction of the D-36 high-bypass turbofanProduct launchBackground
The organization was developing bypass engines for a new generation of transport and regional aircraft.
Action taken
Under Volodymyr Lotarev, it brought the D-36 into service.
Aftermath
The engine established a design lineage that later included the D-436 and strengthened the bureau's position in transport propulsion.
1953
Move into turbine propulsionStrategyBackground
The bureau had initially concentrated on piston engines but faced the wider aerospace industry's shift toward turbine power.
Action taken
It began development of the TS-12 turbine engine and subsequently expanded into turbojet, turbofan, turboprop, and turboshaft designs.
Aftermath
The transition became the foundation of Ivchenko-Progress's modern identity as an aircraft gas-turbine design bureau.
Recent events
- 2015
Diamond announced first flight of DA50-JP7 with AI-450S engine[1]
Product launch · Product generation
Diamond Aircraft announced the first flight of its DA50-JP7 prototype powered by the AI-450S turboprop, developed by Motor Sich and Ivchenko-Progress. The aircraft later entered certification with a different Continental engine configuration.
Akinci unmanned aircraft associated with Ivchenko-Progress engines[1]
Other
The Turkish Akinci strategic unmanned aircraft has been reported as using engines from the Ivchenko-Progress and Motor Sich propulsion family.
Sources2 sources
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