24/7 Space News
ROCKET SCIENCE
ISRO conducts the Reusable Launch Vehicle Autonomous Landing Mission
illustration only
ADVERTISEMENT
ISRO conducts the Reusable Launch Vehicle Autonomous Landing Mission
by Staff Writers
Chitradurga. India (SPX) Apr 04, 2023

ISRO successfully conducted the Reusable Launch Vehicle Autonomous Landing Mission (RLV LEX). The test was conducted at the Aeronautical Test Range (ATR), Chitradurga, Karnataka in the early hours on April 2, 2023.

The RLV took off at 7:10 am IST by a Chinook Helicopter of the Indian Air Force as an underslung load and flew to a height of 4.5 km (above MSL). Once the predetermined pillbox parameters were attained, based on the RLV's Mission Management Computer command, the RLV was released in mid-air, at a down range of 4.6 km. Release conditions included 10 parameters covering position, velocity, altitude and body rates, etc. The release of RLV was autonomous. RLV then performed approach and landing maneuvers using the Integrated Navigation, Guidance and control system and completed an autonomous landing on the ATR air strip at 7:40 AM IST. With that, ISRO successfully achieved the autonomous landing of a space vehicle.

The autonomous landing was carried out under the exact conditions of a Space Re-entry vehicle's landing -high speed, unmanned, precise landing from the same return path- as if the vehicle arrives from space. Landing parameters such as Ground relative velocity, the sink rate of Landing Gears, and precise body rates, as might be experienced by an orbital re-entry space vehicle in its return path, were achieved. The RLV LEX demanded several state-of-the-art technologies including accurate Navigation hardware and software, Pseudolite system, Ka-band Radar Altimeter, NavIC receiver, indigenous Landing Gear, Aerofoil honey-comb fins and brake parachute system.

In a first in the world, a winged body has been carried to an altitude of 4.5 km by a helicopter and released for carrying out an autonomous landing on a runway. RLV is essentially a space plane with a low lift to drag ratio requiring an approach at high glide angles that necessitated a landing at high velocities of 350 kmph. LEX utilized several indigenous systems. Localized Navigation systems based on pseudolite systems, instrumentation, and sensor systems, etc. were developed by ISRO. Digital Elevation Model (DEM) of the landing site with a Ka-band Radar Altimeter provided accurate altitude information. Extensive wind tunnel tests and CFD simulations enabled aerodynamic characterization of RLV prior to the flight. Adaptation of contemporary technologies developed for RLV LEX turns other operational launch vehicles of ISRO more cost-effective.

ISRO had demonstrated the re-entry of its winged vehicle RLV-TD in the HEX mission in May 2016. The re-entry of a hypersonic sub-orbital vehicle marked a major accomplishment in developing Reusable Launch Vehicles. In HEX, the vehicle landed on a hypothetical runway over the Bay of Bengal. Precise landing on a runway was an aspect not included in the HEX mission. The LEX mission achieved the final approach phase that coincided with the re-entry return flight path exhibiting an autonomous, high speed (350 kmph) landing. The LEX began with an Integrated Navigation test in 2019 and followed multiple Engineering Model Trials and Captive Phase tests in subsequent years.

Along with ISRO, IAF, CEMILAC, ADE, and ADRDE contributed to this test. The IAF team hand in hand with the Project team and multiple sorties were conducted to perfect the achievement of release conditions. Dr. S Unnikrishnan Nair, Director, VSSC, and Shri Shyam Mohan N, Programme Director, ATSP guided the teams. Dr. Jayakumar M, Project Director, RLV was the Mission Director, and Shri Muthupandian J, Associate Project Director, RLV was the Vehicle Director for the mission. Shri Ramakrishna, Director, ISTRAC was present on the occasion. Chairman, ISRO/Secretary, DOS Shri S Somanath witnessed the test and congratulated the team.

With LEX, the dream of an Indian Reusable Launch Vehicle arrives one step closer to reality.

Related Links
ISRO
Rocket Science News at Space-Travel.Com

Subscribe Free To Our Daily Newsletters

RELATED CONTENT
The following news reports may link to other Space Media Network websites.
ROCKET SCIENCE
Privately built, liquid-fuel rocket first in world to reach orbit in debut flight
Beijing (XNA) Apr 04, 2023
The TL 2, a carrier rocket developed by Space Pioneer, reached orbit on Sunday afternoon, becoming the first privately built, liquid-fuel rocket in China to reach orbit. The rocket blasted off at 4:48 pm from the Jiuquan Satellite Launch Center in northwestern China. Shortly after, it placed a remote-sensing satellite in a sun-synchronous orbit about 500 kilometers above the Earth, Space Pioneer said in a news release. The launch marks the first time that any privately developed, liquid-prop ... read more

ADVERTISEMENT
ADVERTISEMENT
ROCKET SCIENCE
NASA awards innovative concept studies for science, exploration

New book explores possibilities of colonizing planets, moons and beyond

Axiom Space's upcoming ISS mission part of increasing commercialization of space

Makenzie Lystrup named first female director of Goddard Space Flight Center

ROCKET SCIENCE
Japan postpones H2A rocket launch after H3 failure

ISRO conducts the Reusable Launch Vehicle Autonomous Landing Mission

Musk's Twitter marks BBC, NPR as 'government funded' but not Tesla or SpaceX

Purdue offering new online Hypersonics Graduate Certificate

ROCKET SCIENCE
Scoping out the next sampling stop for Perseverance

New interactive mosaic uses NASA imagery to show Mars in vivid detail

Ready for Software Upgrade Sols 3786-3788

MOXIE Celebrates 2 Years on Mars: Discoveries and Work Left To Do

ROCKET SCIENCE
China's inland space launch site advances commercial services

China's Shenzhou XV astronauts complete 3rd spacewalk

China's Shenzhou-15 astronauts to return in June

China's space technology institute sees launches of 400 spacecraft

ROCKET SCIENCE
Deloitte announces formal space practice for rapidly growing space industry

Unseenlabs ready for Bro-9 satellite launch dedicated vessel geolocation from space

Kenya to launch first operational satellite next week

O'Shaughnessy Ventures announces investment in Atomos Space

ROCKET SCIENCE
Satixfy tests new antenna with OneWeb and Air Force Research Lab

Viasat real-time Earth antennas integrated on Microsoft Azure Orbital

LeoLabs and ClearSpace partner to advance a safer, more sustainable space environment

D-Orbit signs contract with ESA for IRIDE Satellite Observation Program

ROCKET SCIENCE
Do Earth-like exoplanets have magnetic fields

New paper investigates exoplanet climates

JWST confirms giant planet atmospheres vary widely

Planet hunting and the origins of life

ROCKET SCIENCE
NASA's Webb Scores Another Ringed World with New Image of Uranus

An unprecedented journey to Jupiter

Juice testing - down to the wire

Sabotaging Juice

Subscribe Free To Our Daily Newsletters


ADVERTISEMENT



The content herein, unless otherwise known to be public domain, are Copyright 1995-2023 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. General Data Protection Regulation (GDPR) Statement Our advertisers use various cookies and the like to deliver the best ad banner available at one time. All network advertising suppliers have GDPR policies (Legitimate Interest) that conform with EU regulations for data collection. By using our websites you consent to cookie based advertising. If you do not agree with this then you must stop using the websites from May 25, 2018. Privacy Statement. Additional information can be found here at About Us.