New ukrainan bypass engine for medium weight passenger and transport planes

D-436

Progress (developement), Ukraine
Saljut (production of some components), Russia
UMPO Ufa (production), Russia

D-436T1/T2, ukrainan turbofan, is designed for middle-class passenger planes Tu-134M, Tu-334-100, Tu-334-200, Tu-230 with capacity from 100 to 150 passangers, is also designed for transport planes such as An-74TK-300. The engine was developed on the base of D-36 turbofan engine. New engine has higher thrust (i.a. due to higher pressure in bypass flow), lower fuel consumption, lower weight, reduced noise and emmisions, the engine has easier maintanance. D-436T1 was certified in 1995, T2 was certified in following year.

D-436T1/T2 D-436TP

Exceptional ability of D-36 to work in wide range of climatic conditions has been proved by was proven in 5 milion flight hours (2002) archived on Yak-42, An-72 and An-74 and guarantees reliable and efficient operation od new D-436T1/T2 engines. Engines can be fitted anywhere on the airplane - below or above the wing, inside or on sides of fuselage.

Thermodynamic processes research in D-436T1's core will lower the fuel consumption by 3% to 0,592 kg.kp^-1.h^-1 in near future.

There are few other versions except the D-436T1/T2. D-436-148 is a modifification of T1 for An-148, D-436K is designed for An-72, An-74, Yak-42, Yak-142, the D-436T powers Tu-334-100. The last one is D-436TP designed for two-engine transport (passenger) amphibian plane Be-200 (Be-210). The engine is modified to bear with unfavorable conditions - humidity, heat, rain, flights over forest fires. Be-200 took off on 28th September 1998 for the first time.

Construction:

• 1-stage fan
• compressor "booster stage" between fan and mid-pressure compressor attached to low pressure shaft (only on T1, T2, TP)
• 6-stage mid-pressure compressor
• 7-stage high-pressure compressor
• annular combustion chamber
• 1-stage high-pressure turbine
• 1-stage mid-pressure turbine
• 3-stage low-pressure turbine
• thrust reversor
• electronic and hydromechanical control system
• effective monitoring and diagnostic system

An-72	An-74TK-300	Be-200
Jak-42	Jak-142	Tu-334