Successful High-Altitude Trial of Indigenous Integrated Life Support System (ILSS) for LCA Tejas
Published on March 05, 2025, the Defence Research and Development Organisation (DRDO) announced the successful high-altitude trial of the indigenous Integrated Life Support System (ILSS) for the Light Combat Aircraft (LCA) Tejas.
Key Features of ILSS
- The ILSS is based on the On-Board Oxygen Generating System (OBOGS).
- It eliminates the need for traditional liquid oxygen cylinder systems by generating and managing breathable oxygen for aircrew during flights.
- The system is adaptable for use in other aircraft models like the MiG 29K.
Trial Details
- The trial was conducted by the Defence Bio-Engineering & Electro Medical Laboratory (DEBEL) in Bengaluru.
- It involved the LCA-PV-3 aircraft of Hindustan Aeronautics Limited/Aeronautical Development Agency.
- Test conditions included altitudes up to 50,000 feet and high g-forces.
- The system was tested for OBOGS oxygen concentrations, demand breathing, 100% O2 availability, and aerobatic maneuvers.
- Flight clearance was obtained from the Centre for Military Airworthiness & Certification (CEMILAC).
Performance and Manufacturing
- The ILSS met all specified performance parameters.
- It comprises 11 line replaceable units, enabling continuous real-time breathing oxygen generation for pilots.
- Larsen and Toubro manufactured the system as the development-cum-production partner.
- The system boasts a 90% indigenous content.
