The Defence Research and Development Organisation (DRDO) has developed single-crystal blades technology for helicopters and has supplied 60 of these blades to Hindustan Aeronautics Limited (HAL) as part of their indigenous helicopter development programme for engine application. The DRDO will develop a total of five sets (300 blades) of single-crystal blades.
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This is part of a programme taken up by the Defence Metallurgical Research Laboratory (DMRL) to develop five sets of single-crystal high-pressure turbine (HPT) blades using a nickel-based superalloy.
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