Lotarev D-36

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Ivchenko Progress D-36MV.jpg
Type Turbofan
National origin USSR
Manufacturer Ivchenko-Progress
Motor Sich
First run 1971
Major applications Antonov An-72
Antonov An-74
Yakovlev Yak-42

The Ivchenko Progress D-36 (also known as Lotarev D-36) is a three-shaft high bypass ratio turbofan currently produced by the Ukrainian Motor Sich company.[1]

Design and development[edit]

The engine was developed for the Yak-42, An-72 and An-74 aircraft and was very advanced when it was first introduced in the 1970s. The engine was designed by Vladimir Lotarev. The first test runs began in 1971, first flight tests followed in 1974, serial production began in 1977.

The engine has a single-stage fan with 29 titanium blades and a Kevlar outer shell, which is driven by a three-stage turbine. The six-stage low pressure compressor with titanium blades is driven by a single-stage non-cooled low pressure turbine. The seven-stage high-pressure compressor with steel blades is driven by a steel bladed high-pressure turbine.

Series 4A engines for An-74TK-300 have a built-in reverse thrust device.


Type Thrust (kN) Bypass
at start
Fan diameter (m) Length (m) Weight (kg) Introduction Application
Series 1 63.75 5.6:1 20:1 1,333 3,930 1124  ? Yakovlev Yak-42
Series 1A/2A 63.75 5.6:1 20:1 1,333 3,192 1124  ? Antonov An-72
Antonov An-74
Series 3A 63.75 5.6:1 20:1 1,333 3,192 1124  ? Antonov An-74
Series 4A 63.75  ?  ? 1,333 3,732 1130  ? An-74TK-300

See also[edit]

Related development
Related lists


  1. ^ Motor Sich D-36 product page Retrieved: 6 January 2013