ISRO achieves major milestone in reusable launch vehicle tech with landing experiment
Bengaluru (PTI): ISRO on Friday said it has achieved a major milestone in the area of reusable launch vehicle technology through the RLV LEX-02 landing experiment.
This is the second of the series conducted at Aeronautical Test Range, Chitradurga, in Karnataka at 7.10 am.
After the RLV-LEX-01 mission was accomplished last year, RLV-LEX-02 demonstrated the autonomous landing capability of reusable launch vehicle (RLV) from off-nominal initial conditions at release from helicopter, the Bengaluru-headquartered space agency said in a statement.
"The RLV was made to undertake more difficult maneuvers with dispersions, correct both cross-range and downrange and land on the runway in a fully autonomous mode," it said.
The winged vehicle, called Pushpak, was lifted by an Indian Air Force Chinook helicopter and was released from 4.5 km altitude. After release at a distance of 4 km from the runway, Pushpak autonomously approached the runway along with cross-range corrections. It landed precisely on the runway and came to a halt using its brake parachute, landing gear brakes and nose wheel steering system, ISRO said.
It added that this mission successfully simulated the approach and high-speed landing conditions of RLV returning from space.
"With this second mission, ISRO has re-validated the indigenously developed technologies in the areas of navigation, control systems, landing gear and deceleration systems essential for performing a high-speed autonomous landing of a space-returning vehicle," the space agency said.
The winged body and all flight systems used in RLV-LEX-01 were reused in the RLV-LEX-02 mission after due certification/ clearances. Hence, reuse capability of flight hardware and flight systems is also demonstrated in this mission, ISRO said.
Based on the observation from RLV-LEX-01, the airframe structure and landing gear were strengthened to tolerate higher landing loads, it said.
The mission was accomplished by Vikram Sarabhai Space Centre (VSSC) along with the Liquid Propulsion System Centre (LPSC) and the ISRO Inertial Systems Unit (IISU).
ISRO chairman S Somanath congratulated the team for the flawless execution of this complex mission.
On the success of the landing experiment, VSSC Director Dr S Unnikrishnan Nair said through this repeated success, ISRO could master the terminal phase maneuvering, landing and energy management in a fully autonomous mode, which is a critical step towards the future.
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Virat Kohli's Ranji Trophy return draws massive crowd at Arun Jaitley Stadium, fans chant RCB
New Delhi: Virat Kohli's return to the Ranji Trophy after nearly 13 years has generated massive excitement among fans, with thousands gathering outside Arun Jaitley Stadium, chanting "RCB RCB" in support of the star batter. Kohli is playing for Delhi against Railways as part of his preparation for the upcoming Champions Trophy.
The Delhi and District Cricket Association (DDCA) has allowed free entry for spectators, requiring only an Aadhaar card and a photocopy. Fans have been allocated the Gautam Gambhir Stand, accessible through Gate Nos. 16 and 17, while Gate No. 6 is reserved for DDCA members and guests.
DDCA secretary Ashok Kumar Sharma stated that around 10,000 fans are expected on the first day, with arrangements matching those of an international or IPL match.
Kohli, who last played in the Ranji Trophy in 2012 under Virender Sehwag's captaincy, is looking to regain form. Since 2020, he has scored 2,028 runs in 39 Test matches at an average of 30.72, with just three centuries. In the 2023–25 ICC World Test Championship cycle, he managed 751 runs in 14 matches at an average of 32.65.
