Hindustan Aeronautics and Safran Helicopter Engines have inked a contract with SAFHAL Helicopter Engines Private for the launch and development of high-power helicopter engine named “Aravalli”. HAL-Safran: Project details According to HAL’s exchange filing, SAFHAL marks a joint venture between the two companies, as they will utilise the know-how and strengths of their parent companies to develop and deliver technologies that deliver superior quality performance.