New Delhi: The Defence Bio-Engineering & Electro Medical Laboratory (DEBEL) in Bengaluru, under the Defence Research and Development Organisation (DRDO), has successfully completed high-altitude trials of the Indigenous On-Board Oxygen Generating System (OBOGS)-based Integrated Life Support System (ILSS) for the LCA Tejas aircraft.
The trials were conducted on Tuesday, marking a significant milestone in India’s aerospace capabilities.
The OBOGS-based ILSS is an advanced system designed to generate and regulate breathable oxygen for pilots during flight, replacing traditional liquid oxygen cylinder-based systems.
The ILSS was tested on the LCA-Prototype Vehicle-3 aircraft developed by Hindustan Aeronautics Limited (HAL) and the Aeronautical Development Agency (ADA).
It underwent rigorous evaluations under various flight conditions, including altitudes of up to 50,000 feet Above Mean Sea Level and high-G maneuvers, ensuring compliance with strict aeromedical standards.
According to a statement from the Indian government, the performance assessments covered vital functions such as oxygen concentration, demand breathing, availability of 100% oxygen, and testing of the Anti-G Valve and Breathing Oxygen System (BOS) during taxing, take-off, cruising, G turns, and landing. The system passed all tests and met the required parameters after flight clearance from the Centre for Military Airworthiness & Certification (CEMILAC).
The ILSS integrates 10 Line Replaceable Units, including the Low-Pressure Breathing Regulator, BOS, Emergency Oxygen System, Oxygen Sensor, and Anti-G valve, among other components. This will enable real-time oxygen generation, enhancing the pilot’s endurance and operational efficiency.
Manufactured by L&T as a Development and Production Partner, the ILSS boasts 90% indigenous content, advancing India’s self-reliance in aerospace technology. The system can also be adapted for use in other aircraft such as the MiG-29K with suitable modifications.
This achievement is the result of a collaborative effort between DEBEL, ADA, HAL, CEMILAC, the National Flight Test Center, the Directorate General of Aeronautical Quality Assurance, and the Indian Air Force (IAF), marking a significant step forward in India’s military aviation capabilities.
