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VR-442
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VR-442

The VR-442 gearbox is designed for the MSB-2 helicopters, powered by the AI-450M. Designed for installation on helicopters with a takeoff weight of 3,900 kg.

Basic specifications:

Main drive shaft speed, rpm 6,017
Gear ratio to the main rotor shaft 23.980
Takeoff power rating, hp 2 x 465
TBO/Total service life, h 1,500/4,500
Total calendar life, years 10
Overall dimensions, mm
Length 920
Width 876
Height 1,478
Weight, kg 315
Engine AI-450M-P

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Last updated: April 30, 2026

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