Ivchenko Progress ZMKB (Ivchenko Progress Zaporozhye Machine-Building Design Bureau), formerly OKB-478 and Ivchenko Lotarev is an Ukrainian aircraft engine manufacturer whose products are widely used in both civil and military aircraft, most notably perhaps by Antonov, Ilyushin, Tupolev and Yakovlev. Also PZL-Mielec has used a Progress engine in one of their cropdusters.
The Company over has been involved for 60 years in the design of engines to power aircraft and helicopters of various types, and also designs drives and special equipment for industrial applications. Three notable designers have lead development during this timeframe.
1945 – 1968 – Alexander Gheorghievich Ivchenko;
1968 – 1989 – Vladimir Alexeevich Lotarev;
since 1989 – Fyodor Mikhailovich Muravchenko.
Initially general Alexander Gheorghievich Ivchenko designed piston engines. These engines were denoted AI (“AI”-Alexander Ivchenko). Work on their first turbine engine, the TS-12, began in 1953. Since the beginning of 1960s the company have been developing bypass gas turbine engines. Under the direction of Vladimir Lotarev, the organization developed the first operational Soviet high-bypass turbofans, the Lotarev "D-36" in 1971.