"HAL and Safran Sign Deal to Jointly Develop India's First High-Power Helicopter Engine"
Turboshaft engine
a gas turbine engine that delivers power through a rotating shaft, used to drive helicopter rotors rather than produce jet thrust.
Shaft horsepower (shp)
the unit measuring power output at the engine's output shaft, the standard metric for helicopter engine performance.
India's rotary-wing aviation capability has historically rested on licence-built platforms. The Cheetah and Chetak helicopters, derivatives of the French Aérospatiale Alouette series, served the armed forces for over five decades. Hindustan Aeronautics Limited (HAL) manufactured its first Chetak domestically in 1969, but the underlying technology remained foreign. This dependence on licensed production meant India could assemble and maintain these platforms but could not independently design or modify their core systems, especially propulsion.
The strategic cost of this gap became clear over time. Ageing airframes required repeated service-life extensions. More critically, India lacked the ability to develop engines suited to its own operational requirements, high-altitude Himalayan missions, naval deck operations, and extreme-climate deployments. Each successive HAL programme, the Advanced Light Helicopter (ALH) Dhruv, the Light Combat Helicopter (LCH), and the Light Utility Helicopter (LUH), increased indigenous content in airframe and avionics, but propulsion remained the weakest link. The Shakti engine family powering the ALH, LCH, and LUH was developed with Safran's technical support, but the design authority still rested primarily with the French partner.
The Aatmanirbhar Bharat initiative in defence, launched as a formal policy framework, accelerated the push to close this gap. Positive indigenisation lists, defence industrial corridors in Uttar Pradesh and Tamil Nadu/Karnataka, and increased foreign direct investment limits in defence manufacturing all created the policy environment for deeper joint development rather than mere licensed production.
The Aravalli engine programme represents a qualitative shift in India's aerospace propulsion strategy. The engine is being developed through SAFHAL Helicopter Engines Pvt Ltd, a 50:50 joint venture between HAL and France's Safran Helicopter Engines. The Aravalli is a turboshaft engine in the 3,500–4,000 shaft horsepower (shp) class, significantly more powerful than the Shakti engine (~1,000 shp range) that powers current HAL helicopters. This power class is necessary to lift the 13-tonne Indian Multi-Role Helicopter (IMRH) and its naval variant, the 12.5-tonne Deck-Based Multi-Role Helicopter (DBMRH).
The programme's significance lies in what India gains access to. HAL will work alongside Safran engineers on core engine subsystems: the High Pressure Compressor, power turbine, fuel and oil systems, accessory gearbox, and engine external systems. …
With reference to India's defence, consider the following pairs:
Aircraft type : Description
I.Dornier-228 : Maritime patrol aircraft
II.IL-76 : Supersonic combat aircraft
III.C-17 Globemaster III : Military transport aircraft
How many of the pairs given above are correctly matched?
What is the main task of India's third moon mission which could not be achieved in its earlier mission? List the countries that have achieved this task. Introduce the subsystems in the spacecraft launched and explain the role of the Virtual Launch Control Centre at the Vikram Sarabhai Space Centre which contributed to the successful launch from Sriharikota.
Consider the following statements regarding the Aravalli helicopter engine programme:
1.It is being developed through a 50:50 joint venture between HAL and Safran Helicopter Engines called SAFHAL.
2.The engine is rated in the 3,500–4,000 shaft horsepower class.
3.Manufacturing of the engine will take place at Pune, Maharashtra.
4.The engine will power the Indian Multi-Role Helicopter (IMRH) and the Deck-Based Multi-Role Helicopter (DBMRH).
How many of the above statements are correct?
Match the following HAL helicopter platforms with the Safran engine family that powers them:
Platform — Engine
I.Advanced Light Helicopter (ALH) Dhruv — P. Shakti engine
II.Light Combat Helicopter (LCH) — Q. Artouste engine
III.Cheetah / Chetak — R. Aravalli engine
IV.Indian Multi-Role Helicopter (IMRH) — S. Ardiden engine
Which of the following matchings is correct?
With reference to the Indian Multi-Role Helicopter (IMRH) and its naval variant, consider the following statements:
1.The IMRH has a maximum take-off weight of 13 tonnes.
2.The naval variant, the DBMRH, is heavier than the IMRH at 14 tonnes.
3.Both platforms require clearance from the Defence Acquisition Council before entering production.
4.The platforms have potential civil applications including offshore transportation and VVIP transport.
Which of the statements given above are correct?
Which of the following best describes the significance of the Aravalli engine programme in the context of India's aerospace propulsion capability?
Consider the following pairs regarding HAL's helicopter engine programmes and their manufacturing locations:
Programme — Location
I.SAFHAL (Aravalli engine) — Tumakuru, Karnataka
II.HAL Helicopter Division (LUH production) — Tumakuru, Karnataka
III.HAL's Rotary Wing Research and Design Centre — Bengaluru, Karnataka
How many of the pairs given above are correctly matched?
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