AI-25TLSh TURBOJET BYPASS ENGINE

This turbofan is a version of the mass-produced AI-25TL engine mounted in the L-39 and K-8J trainer aircraft.


This turbofan is a version of the mass-produced AI-25TL engine mounted in the L-39 and K-8J trainer aircraft. It can power combat-trainer modifications of these aircrafts and be adapted to power other existing trainer and combat trainer aircraft and those under development to be used as light attack aircraft. In this respect, a combat power rating of enhanced maximum thrust, employed for strike operations, has been additionally introduced and engine acceleration time has been substantially reduced.


The engine features:

- high reliability ensuring the highest possible flight safety, which is proved by the fact that around 5,000 AI-25TL engines are operated in 37 countries, their total operating time approaches to 7,000,000 hours;
- high level of gas-dynamic stability at external disturbances, including those when launching onboard weapons;
- high fuel efficiency;
- insignificant labor and time input for maintenance;
- minimum life cycle cost.

The engine preserves the previous design of automatic control system to provide retrofitting the earlier produced L-39 and K-8J aircraft. At a customer's request, the engine can be modified to be controlled by

 

BASIC SPECIFICATIONS

       Combat                        Training

Maximum power condition (H = 0, M = 0, ISA):

 

Thrust, kgf (kN)

  1850 (18.15)                 1720 (16.87)

SFC, kg/(kgf•h) (kg/kN•h)

                     0.575 (58.6)

Maximum power condition (H = 0, M = 0.6, ISA +15 °C):

 

Thrust, kgf (kN)

  1250 (12.26)                 1100 (10.79)

Cruise power condition (H = 8000 m, Mfl = 0.75, ISA):

 

Thrust, kgf (kN)

  1600 (15.69)                 1600 (15.69)

Specific fuel consumption, kg/kgf•h (kg/kN•h)

   0.630 (64.2)                 0.630 (64.2)
Dry weight, kg        1124                            1124


SOME HISTORY FACTS





10,000

Tonnes of iron
Shot at Siege of Sebastopol during Crimean War





144,000

Revolutions per minute
Does a bullet fired from Lee Enfield rifle, as used in both world wars





2,000

Women
The Nizam of Hyderabad raised in 1975 for his war against the Marathas





130,000

Meters
Is an effective range of Big Bertha, the World War I howitzer


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Contact Information

ABOUT SPETS TECHNO EXPORT

State Foreign Trade Enterprise “SpetsTechnoExport” is a fully state-run entity incorporated by the Government of Ukraine in 1998 for export-import activities at foreign armaments markets.

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