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First Hawk I flight developed by HAL

The Hindustan Aeronautics Limited has developed the first flight of Hawk-i with indigenous Real Time Operating System (RTOS).
First Hawk I flight developed by HAL
  • Hawk-I is the first indigenous RTOS developed in India from scratch and certified by Bangalore based Center for Military Airworthiness and Certification (CEMILAC). 
  • Similac (Center for Military Airworthiness and Certification) is India's defence certifying agency for aircraft—manned and unmanned—its components and equipment.
  • It is a part of the government-run Defence Research and Development Organisation (DRDO).


  • The RTOS is the system software which provides a standard run-time environment for real-time applications execution in a safe and reliable manner.
  • Avionics systems in India are currently developed using commercial RTOS procured from foreign suppliers.
  • The RTOS is a key technology for concurrent execution of multiple applications.
  • It is beneficial in the optimal use of hardware resources which is important for the increased complexity of modern avionics software.
  • Importing this new technology is very costly and it provides ery limited flexibility in incorporating new features and adaptation to new hardware platforms.
  • The RTOS imported are also vulnerable to cyber-attacks which may compromise the safety and security of the avionics system.
  • In order to overcome this dependency and achieve self-reliance, the HAL had taken up the responsibility of designing an indigenous RTOS for safety-critical and mission-critical avionics systems. 
  • Its key features include address, space and time partitioning, priority pre-emptive process scheduling and health monitoring.
  • The advanced features like the network stack and file system have been co-developed with IIT- Kharagpur. 
  • IIT- Kharagpur also carried out formal method based verification of the RTOS kernel.
First Hawk I flight developed by HAL First Hawk I flight developed by HAL Reviewed by Unknown on February 10, 2018 Rating: 5

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