NPO Saturn AL-55

The NPO Saturn AL-55 is a high performance turbofan engine manufactured by NPO Saturn Russia, for powering advanced trainers, unmanned aerial vehicles (UAV) and light attack aircraft. A variant of the AL-55I powers the HAL HJT-36 Sitara Indian jet trainer.

NPO Saturn AL-55
The Jet engine AL-55 (The international aerospace salon MAKS-2011)
Type Turbofan
National origin Russia
Manufacturer NPO Saturn and serial production by Ufa Engine Industrial Association JSC
Major applications Originally designed for HAL HJT-36 Sitara
Program cost Estimated more than US$ 640 million
Unit cost USD$1.3 million

Design

The design comprises five main features. It has a three-stage low pressure compressor, five stage high pressure chamber, an annular combustion chamber and a single stage high and low pressure turbines.

In August 2005, the Russian export organization known as Rosoboronexport and India's Hindustan Aeronautics Limited (HAL) signed an agreement for the licensed production of up to 1,000 AL-55I engines. The agreement includes a firm order for 250 engines to be manufactured at HAL facilities in India, to power both HAL HJT-36 trainer and HAL HJT 39 combat trainer aircraft.

Variants
AL-55
AL-55/I: A variant designed for licensed production in India.

Applications

Specifications

Data from UEC Saturn.[2]

General characteristics

  • Type: Double spool (two shaft) turbofan
  • Length: 1,950 mm (76.77 in)
  • Diameter: 590 mm (23.23 in)
  • Dry weight: 315 kg

Components

  • Compressor: two-spool, with 3-stage low-pressure (LP) and 5-stage high-pressure (HP) and one annular compressor
  • Turbine: 1 LP stage and 1 HP stage

Performance

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See also

References
  1. MiG-AT aircraft Archived 2012-05-05 at the Wayback Machine
  2. "Engines for military aircraft and UAS AL-55".
  3. http://www.russia-algeria.ru/3/Saturn_english_2010.pdf
  4. "United Engine Corporation". Uk-odk.ru. Archived from the original on 2014-02-16. Retrieved 2014-04-06.
  5. Соколов Константин. "NPO "SATURN" > AL-55". Npo-saturn.ru. Retrieved 2014-04-06.
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