Private Sector

Make In India: DRDO Builds State-Of-The-Art Single Crystal Blades For Helicopter Engine Application; Supplies To HAL

By swarajyamag

As part of the indigenous helicopter development program for helicopter engine application, Defence Research and Development Organisation (DRDO) has developed single crystal blades technology and supplied 60 of these blades to Hindustan Aeronautics Limited (HAL).

It is taken up by Defence Metallurgical Research Laboratory (DMRL), a premium laboratory of DRDO, to develop five sets (300 in number) of single crystal high pressure turbine (HPT) blades using a nickel-based super alloy. The supply of the remaining four sets will be completed in due course.

Helicopters used in strategic and defence applications need compact and powerful aero-engines for their reliable operation at extreme conditions.

To achieve this, state-of-the-art single crystal blades having complex shape and geometry, manufactured out of Nickel based super alloys capable of withstanding high temperatures of operation are used.

Very few countries in the world such as the USA, UK, France and Russia have the capability to design and manufacture such Single Crystal (SX) components, the Ministry of Defence said in a statement.

The DMRL undertook this task based on its expertise gained during the development of such a technology for an aero-engine project earlier.

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