Progress D-436

Design and development

The D-436 engine was developed as a follow on to the Lotarev D-36. The engine took several of its design features from that engine and another Progress engine, the Progress D-18. The D-436 incorporated an updated, higher RPM fan, a lower emissions combustor, and new compressor sections. Several variants of the engine incorporate a FADEC.

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

Variants

;D-436K: The "K" variant was the initial model of the engine. It had a bypass ratio of 6.2 and a pressure ratio of 21.0. Proposed for use in the defunct Antonov An-71. ;D-436M: The "M" variant was proposed for use on the Yak-42M. ;D-436T1: The "T1" variant is used on the Tu-334 and has been offered for use on the in-development Tu-414. See detailed specifications below. The variant was also proposed for use on the now-defunct An-174. ;D-436T1-134: The "T1-134" variant was proposed as a replacement for the engines on the Tupolev Tu-134. ;D-436T2: The "T2" variant is uprated to 80 kN of thrust and is used on the Tu-334-100D and the Tu-334-200D. ;D-436TP: The "TP" variant is a specific "maritime" corrosion-resistant version developed for use in the Be-200 amphibious aircraft. This variant produces 7,500 kgf (16,534 lbf) each. ;D-436T3: The "T3" variant added a booster section behind the new wide-chord fan and had a maximum thrust around 93 kN. The T3 variant was also considered for the Il-214, but the aircraft's thrust requirements exceeded the max engine thrust of 22,000 lbf. ;D-436-148: The "-148" variant was developed specifically for the An-148. This version is derated to 67 kN of thrust for longer engine life. ;D-436TX: The "TX" variant uses the same core at the "T3", but includes an updated turbine and a geared fan. It is in the 117 - class.

Derivatives

;AI-436T12: This derivative engine was designed for use on the Irkut/Ilyushin MC-21. It was projected to produce 117 kN of thrust. Irkut has since replaced the AI-436T12 with the 31000 lbf Aviadvigatel PD-14.

Applications

• Antonov An-148
• Antonov An-72/74
• Beriev Be-200
• Tupolev Tu-334
• Yakovlev Yak-42M

Specifications (D-436-T1)

and start a new, fully-formatted line with

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References

References

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2. {{cite encyclopedia
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11. (15 March 2004). "An-148 final assembly gets under way at Kiev".
12. (23 June 2003). "An-148 design tweaked as date for first flight approaches".
13. ENGINES (2008). ''DEFENSE and SECURITY (Russia)''. No. 100, September 10, 2008
14. "MC-21 test aircraft flies with PD-14 engines after swap from PW-1400Gs". FlightGlobal, October 7, 2022.
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