The Defence Research and Development Organisation (DRDO) has successfully conducted a high-altitude trial of the Integrated Life Support System (ILSS) designed for the Light Combat Aircraft (LCA) Tejas. This innovative system, developed by the DRDO’s Defence Bio-Engineering & Electro Medical Laboratory (DEBEL) in Bengaluru, is intended to ensure aircrew safety at high altitudes by generating and managing breathable oxygen in flight.
The ILSS utilizes an On-Board Oxygen Generating System (OBOGS), which eliminates the need for conventional liquid oxygen cylinders typically used in military aircraft. By generating oxygen from the air during flight, the system provides continuous oxygen supply to the pilots. This technology also makes the aircraft lighter and more fuel-efficient as there is no requirement for storing liquid oxygen.
The trial was conducted on the LCA-PV-3 aircraft, developed by Hindustan Aeronautics Limited (HAL) and the Aeronautical Development Agency (ADA). It was tested under conditions that simulated high-altitude flights up to 50,000 feet, a crucial altitude for combat missions. The system was evaluated for its performance under extreme conditions, including real-time oxygen generation, demand breathing, and during aerobatic maneuvers, and met all required parameters.
The ILSS has passed rigorous testing and evaluation under stringent aero-medical standards and has received flight clearance from the Centre for Military Airworthiness & Certification (CEMILAC). The system’s development also boasts an impressive 90% indigenous content, a testament to India’s growing self-reliance in military technology. The manufacturing partner for this system is Larsen & Toubro (L&T).
This successful trial opens the door for the ILSS to be adopted by other aircraft, such as the MiG-29K. Additionally, the success of this system highlights the progress of India’s indigenous defense technologies and supports future aircraft development initiatives for the Indian Air Force and other defense services.
Integrated Life Support System for Tejas
The successful high-altitude trial of the ILSS for Tejas aircraft by DRDO is a significant achievement for India’s defense capabilities. The development and testing of the ILSS represent a leap forward in self-reliance for India’s defense sector, particularly in the area of aviation safety and technology.
With the ILSS, Indian fighter aircraft, particularly the Tejas, will be capable of handling high-altitude operations more effectively. The ability to generate oxygen on board, instead of relying on traditional liquid oxygen cylinders, enhances the safety and operational efficiency of pilots, especially during prolonged and high-altitude missions.
This successful trial also highlights India’s progress in manufacturing critical defense technologies domestically. With 90% indigenous content, the ILSS system not only improves India’s technological capabilities but also boosts its defense manufacturing industry, which is essential for long-term sustainability.
The development of life support systems in aircraft dates back to the early days of aviation, where pilots were dependent on external oxygen sources for high-altitude flights. Traditional systems relied heavily on liquid oxygen cylinders, which posed logistical challenges, especially in combat situations. Over time, advancements such as On-Board Oxygen Generating Systems (OBOGS) have revolutionized the way fighter jets operate at high altitudes.
India’s drive towards indigenizing defense technologies has gained momentum over the last few decades, particularly with initiatives like ‘Atmanirbhar Bharat’ (Self-Reliant India). The ILSS trial is a step towards reducing dependence on foreign suppliers for critical technologies, in line with India’s vision of becoming self-reliant in defense manufacturing.
The Light Combat Aircraft Tejas, developed by the Aeronautical Development Agency (ADA) and produced by Hindustan Aeronautics Limited (HAL), is India’s flagship indigenous fighter jet program. Over the years, the Tejas has undergone extensive development, and the addition of an advanced life support system is another milestone in its evolution, ensuring it meets international standards.
What is the Integrated Life Support System (ILSS) used for?
Which aircraft was the ILSS tested on?
What altitude was simulated during the high-altitude trial of the ILSS?
Which organization developed the ILSS for Tejas aircraft?
What percentage of the ILSS is indigenously developed?
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