Single crystal blades -- having complex shape and geometry -- are manufactured
out of nickel-based superalloys that are capable of withstanding high
temperatures, it noted.
Helicopters used in strategic and defence applications need compact and
powerful aero-engines for their reliable operation at extreme conditions, the
statement mentioned.
"The DRDO has developed single crystal blades technology and supplied 60 of
these blades to HAL as part of their indigenous helicopter development program
for helicopter engine application," it stated.
The DRDO will develop total ve sets (300 blades) of single crystal blades.
While one set (60 blades) has been delivered to HAL, the remaining four will be "completed in due course", the statement
said.
29/04/21 Economic Times
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