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D-18T (III) Turbofan engine

D-18T (III) Turbofan engine © Konstantinos Panitsidis
Photo archive K. Panitsidi

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D-18T (III) is a triple-drive shaft, high-bypass turbofan, it is intended for installation in An-124, An-124-100, An-225 aircraft.

 

D-18T Turbofan engine © www.redstar.gr

D-18T Turbofan engine.

 

 Main advantages D-18T (III)
- the engine has a large take
- off thrust
- low specific fuel consumption
- high reliability
- high performance system
- low levels noise
- low levels of emission
- service life up to 20.000 h.
 

 

D-18T Turbofan engine © www.redstar.gr

D-18T Turbofan engine.

The engine design is based on the principle of modular assembly.

 

D-18T Turbofan engine © www.redstar.gr

D-18T Turbofan engine.

 

The engine design is based on the principle of modular assembly. 


The engine design is based on the principle of modular assembly © Konstantinos Panitsidis
 1. Inlet fairing 2. Fan 3. Fan shaft with bearing 4. Fan casing 5. Blade directing vanes fan 6. Medium pressure compressor 7. Exhaust nozzle 8. Turbine exhaust cone 9. Rear mount 10. Rear bearing 11. Fan turbine 12. Medium pressure compressor rotor 13. Turbine case bearing 14. High pressure turbine rotor 15. Nozzle high pressure turbine 16. Combustion chamber 17. Thrust reverser 18. Main engine module 19. Gear box (gearbox) 20. Intermediate drive (gear) 21. Combustion chamber with directing vanes high pressure turbine. 




Technical specifications

DESIGNER Ivchenko - Progress ZMKB
COUNTRY Russia, Ukraine
TYPE
Hight-bypass turbofan engine
Installed On (aerial means)
An-124, An-124-100, An-225
Fuel 
RT, T-1, TS-1
Oil MPM-10 OST.3801294-83, VNII 50-1-4F (GOST 13076-86), Mobil Turbo 319A-2
Maximum thrust take-off power rating 23.400 kgf
Specific fuel consumption, take-off power rating 0,345 kg/kgf. h
Maximum thrust, cruise power (H=11.000 m, M=0,75)   4.860 kgf 
Specific fuel consumption, cruise power 0,546 kg/kgf. h
Pressure ratio, take-off power rating 25
Bypass ratio 5,6
Temperature of the gas at the turbine intake, take-off power ratingς 1.610 K
Air flow rate, take-off power rating 760 kg/sec
Compressor rotation frequency low-pressure, take-off power rating 5.900 rpm
Compressor rotation frequency high-pressure, take-off power rating 9.100 rpm
OVERALL DIMENSIONS  
Diameter -
Height 2937 mm
Width 2792 mm
Length 5400 mm
WEIGHT  
Engine weight  4.100 kg 
Overhaul operation time -
Specified service life 20.000 h
Shelf life of preserved engine -





Photos D-18T (III) High-bypass turbofan engine