Progress D-436
| Industry | Aerospace |
|---|---|
| Founded | 1945 |
| Headquarters | Zaporizhzhia , Ukraine |
| Products | Aircraft engines |
| Parent | Motor Sich (manufacturer) |
The Progress D-436 is a three-spool high-bypass turbofan engine produced by the Ukrainian firm Ivchenko-Progress during the Soviet period and manufactured by Motor Sich in Ukraine. Initially designed in the 1980s to satisfy the propulsion needs of later models of the Yakovlev Yak-42 and Antonov An-72, the engine completed its maiden run in 1985 and gained certification by 1987. Multiple versions have since been developed and remain operational across various aircraft platforms.
Design and development
Conceived as an evolution of the Lotarev D-36, the D-436 borrowed several design elements from that engine as well as from the Ivchenko-Progress D-18. Key advancements included a fan capable of higher rotational speeds, an improved combustor with reduced emissions, and redesigned compressor stages. Some variants feature a FADEC control system.
The assembly facility for the D-436 engines was situated at the Motor-Sich plant in Zaporozhie.[1] This plant was destroyed by Russian military actions in late May 2022 amid the 2022 Russian invasion of Ukraine.[2]
Variants
.jpg){kind=link}
- D-436K
- The initial version, designated "K," featured a bypass ratio of 6.2 and a pressure ratio of 21.0. It was intended for the now-canceled Antonov An-71 program.
- D-436M
- This "M" model was proposed for integration with the Yak-42M aircraft.
- D-436T1
- The "T1" variant powers the Tu-334 and was also offered for the under-development Tu-414. Detailed specifications are provided below. Additionally, this variant was considered for the discontinued An-174 project.
- D-436T1-134
- Designed as a potential replacement engine for the Tupolev Tu-134, this "T1-134" version aimed to modernize that fleet.
- D-436T2
- The "T2" version delivers an increased thrust rating of 80 kN (18,000 lbf) and is installed on the Tu-334-100D and Tu-334-200D variants.
- D-436TP
- Tailored for maritime environments, the "TP" variant incorporates corrosion-resistant features for operation on the amphibious Be-200. Each engine produces 7,500 kgf (16,534 lbf) of thrust.
- D-436T3
- Featuring a booster section behind an advanced wide-chord fan, the "T3" model achieves a maximum thrust near 93 kN (21,000 lbf). It was evaluated for use on the Il-214, but that aircraft's thrust demands surpassed this engine’s maximum output of approximately 98 kN (22,000 lbf).
- D-436-148
- Specifically engineered for the An-148, this variant is derated to 67 kN (15,000 lbf) to enhance engine longevity.
- D-436TX
- Incorporating the same core as the "T3," the "TX" variant features an upgraded turbine and a geared fan, delivering thrust in the range of 117–135 kN (26,000–30,000 lbf).
Derivatives
- AI-436T12
- Developed specifically for the Irkut/Ilyushin MC-21 aircraft, this engine variant was initially expected to deliver approximately 117 kN (26,000 lbf) of thrust. However, Irkut subsequently opted to substitute the AI-436T12 with the 137.89 kN (31,000 lbf) Aviadvigatel PD-14 powerplant.
Applications
Specifications (D-436-T1)
See also
Lua error in mw.title.lua at line 359: bad argument #2 to 'title.new' (unrecognized namespace name 'Portal'). Template:Aircontent
References
External links
- File:Commons-logo.svg Media related to Lua error in Module:Commons_link at line 62: attempt to index field 'wikibase' (a nil value). at Wikimedia Commons
