ISRO successfully conducted the RLV LEX or Reusable Launch Vehicle Autonomous Landing Mission at the Aeronautical Test Range ( ATR ) , Chitradurga, Karnataka on 2nd April , 2023 . The RLV took off at 7:10 a.m. IST by a Chinook Helicopter of the Indian Air Force as underslung load and flew to the 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 and completed an autonomous landing at ATR air strip at 7:40 a.m. IST.
     The 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 like Ground relative velocity , the sink rate of Landing Gears and precise body rates , as might be experienced by an orbital reentry space vehicle in its return path, were achieved.  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 honeycomb fins and brake parachute system.Â
 in a fast 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.Â
 Along with ISRO, IAF, CEMILAC, ADE and ADRDE contributed to the taste . With LEX , the dream of an Indian Reusable Launch Vehicle came more closer to the reality .
Writing Skills
1 . Write a newspaper report on the above mentioned matter. 10.
2. Write a short paragraph on the RLV LEX mission of ISRO. 10
3. Write a Precis based on the above passage. 10
