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Helicopter main gearboxes

Currently a series of R&D activities and preparation for production of the VR-442 main helicopter gearboxes to be used for upgrading the MSB-2 helicopters, as well as the VR-17MS for the Mi-8/Mi-17 helicopters, are being conducted. As a result, helicopters will be powered by up-to-date, efficient, more powerful and reliable engines, leading to enhancement of helicopter performance in general.
The development is realized by means of computer-aided engineering.
Main objectives of gearbox development:

  • high reliability
  • minimum weight
  • minimum overall dimensions
  • design simplicity and fabricability
  • high service life
  • high repairability
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