ISRO completes its Reusable Launch Vehicle technology demonstrations through LEX trio


PTI, Jun 23, 2024, 8:45 AM IST

Space agency ISRO on Sunday said it has achieved a third consecutive success in the Reusable Launch Vehicle Landing Experiment by demonstrating the autonomous landing capability of the launch vehicle under more challenging conditions.

This mission simulated the approach and landing interface and high-speed landing conditions for a vehicle returning from space, reaffirming the Indian Space Research Organisation’s (ISRO) expertise in acquiring the most critical technologies required for the development of a Reusable Launch Vehicle (RLV), the space agency said.

The third and final test in the series of Landing Experiment (LEX-03) was conducted at 07:10 1ST at the Aeronautical Test Range (ATR) in Chitradurga, Karnataka.

Following the success of the RLV LEX-01 and LEX-02 missions, ISRO in a release said, RLV LEX-03 re-demonstrated the autonomous landing capability of the RLV under more challenging release conditions (cross range of 500 m against 150 m for LEX-02) and more severe wind conditions.

The winged vehicle, named ‘Pushpak’, was released from an Indian Air Force Chinook Helicopter at an altitude of 4.5 km “from a release point 4.5 km away from the runway. Pushpak autonomously executed cross-range correction manoeuvres, approached the runway and performed a precise horizontal landing at the runway centreline,” it said.

Due to this vehicle’s low lift-to-drag ratio aerodynamic configuration, the landing velocity exceeded 320 kmph, compared to 260 kmph for a commercial aircraft and 280 kmph for a typical fighter aircraft, it added.

ISRO said, after touchdown, the vehicle velocity was reduced to nearly 100 kmph using its brake parachute, after which the landing gear brakes were employed for deceleration and stop on the runway.

During this ground roll phase, Pushpak utilises its rudder and nose wheel steering system to autonomously maintain a stable and precise ground roll along the runway, it said.

According to the space agency, this mission simulated the approach and landing interface and high-speed landing conditions for a vehicle returning from space, reaffirming ISRO’s expertise in acquiring the most critical technologies required for the development of a Reusable Launch Vehicle (RLV).

Through this mission, the advanced guidance algorithm catering to longitudinal and lateral plane error corrections, which is essential for the future Orbital Re-entry Mission has been validated, the space agency noted.

The RLV-LEX uses multi-sensor fusion including sensors like Inertial sensor, Radar altimeter, Flush air data system, Pseudolite system and NavIC, it said, adding “Notably, the RLV-LEX-03 mission reused the winged body and flight systems as such without any modification, from the LEX-02 mission, demonstrating the robustness of ISRO’s capability of design to reuse flight systems for multiple missions.”

The mission, led by Vikram Sarabhai Space Centre (VSSC), was a collaborative effort involving multiple ISRO centres — Space Applications Centre (SAC), ISRO Telemetry, Tracking and Command Network (ISTRAC) and Satish Dhawan Space Centre (SDSC) SHAR, Sriharikota.

The mission received significant support from the Indian Air Force, Aeronautical Development Establishment, Aerial Delivery Research and Development

Establishment, Regional Centre for Military Airworthiness under Centre for Military Airworthiness and Certification, National Aerospace Laboratories, Indian Institute of Technology, Kanpur, Indian aerospace industrial partners, Indian Oil Corporation of India and Airport Authority of India.

S Somanath, Chairman, ISRO/Secretary, Department of Space, congratulated the team for their efforts in maintaining the success streak in such complex missions.

Dr S Unnikrishnan Nair, Director of VSSC, emphasised that this consistent success boosts ISRO’s confidence in the critical technologies essential for future orbital re-entry missions.

J Muthupandian is the Mission Director and B Karthik is the Vehicle Director for this successful mission.

Udayavani is now on Telegram. Click here to join our channel and stay updated with the latest news.

Top News

Heavy Rainfall: Red alert issued for 6 districts in Karnataka including DK and Udupi

Holding Pak responsible for terror not sufficient, need to go for self-introspection: Jitendra Singh

Assembly bypolls: INDIA bloc win big with 10 seats, BJP bags 2, Independent 1

India crush Zimbabwe by 10 wickets in 4th T20I, take unassailable 3-1 series lead

Satellite images suggest architectural wealth beneath Mahabodhi temple in Bodh Gaya: Officials

Jammu & Kashmir political parties oppose Centre’s move to give more powers to Lt Guv

Rajnath Singh discharged from AIIMS

Related Articles More

AI supercharges data center energy use – straining the grid and slowing sustainability efforts

SpaceX rocket accident leaves company’s Starlink satellites in wrong orbit

Indian Navy’s Eastern Naval Command inaugurates AI hub in Vizag

IBM to launch GenAI Innovation Center in Kochi

Bengaluru-based Pixxel hopes to deliver satellites for IAF by mid-2025

MUST WATCH

Elephant attack

Anant Ambani Wedding

BJP & Congress members clash

Aparna Vastarey

Kalaripayattu Meenakshi Amma


Latest Additions

Mangaluru: Minister Lakshmi Hebbalkar pays surprise visit to MSPC

Heavy Rainfall: Red alert issued for 6 districts in Karnataka including DK and Udupi

Holding Pak responsible for terror not sufficient, need to go for self-introspection: Jitendra Singh

Teaching law in regional languages can improve access to legal system: CJI

UP bride calls off wedding after guests argue over sitting in front of cooler

Thanks for visiting Udayavani

You seem to have an Ad Blocker on.
To continue reading, please turn it off or whitelist Udayavani.