AI-25TL, AI-25TLK
The engine is intended for the L-39 (the AI-25TLK engines
are intended for the K-8J) aircraft and other trainers.
It is successfully operated worldwide.
The engine is the AI-25 turbofan follow-on. As compared
with the base engine, the AI-25TL (AI-25TLK) engine
is distinguished by a higher compressor pressure ratio and
a higher turbine inlet temperature, all that allowing
to increase the engine thrust.
The engine is equipped with a special lubrication system
to enable normal operation under zero-g and negative-g
conditions.
Main advantages:
- High reliability and trouble-free operation;
- Longer service life as compared with other similar engines;
- High maintainability;
- Potential to further increase the engine performances after insignificant design changes.
Basic specifications:
| AI-25TL | AI-25TLK | |
Maximum power (SLS, ISA): | 1720 (16866) | 1720 (16866) |
| Thrust, kgf (N) | 6500 (63765) | 6500 (63765) |
| Specific fuel consumption, kg/kgf·h (kg/N·h) | 0.575 (0.0586) | 0.575 (0.0586) |
| Overall dimensions, mm: | ||
| Length (with extension pipe) | 3358 | 2860 |
| Width | 985 | 868 |
| Height | 958 | 959.5 |
| Dry weight, kg | 350 | 350 |
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