May 1 , 2021
1230 days
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- The DRDO has developed single-crystal blades technology for helicopters.
- It has supplied 60 of these blades to Hindustan Aeronautics Limited (HAL).
- The single-crystal high-pressure turbine (HPT) blades are made of a nickel-based superalloy.
![](https://www.tnpscthervupettagam.com/assets/home/media/general/original_image/1-114.jpg)
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