Another milestone achieved by ISRO . They have successfully demonstrated RLV LEX-02 to show autonomous landing capability of RLV from off- nominal initial conditions at release from helicopter. RLV means Reusable Launch Vehicle. ISRO accomplished the RLV LEX -01 mission last year. This time they have successfully done the experiment conducted at Aeronautical Test Range ( ATR ) , Chitradurga in Karnataka on March 22 at 7:10 hrs. IST in the morning. This RLV was made to undertake more manoeuvres with dispersions, correct both cross – range and down range and land on the runway in a fully autonomous mode. The wing vehicle is called ‘Pushpak’. It was lifted by an Indian Air Force Chinook helicopter and was released from 4.5 km altitude. With this success ISRO has demonstrated the indigenously developed technologies in the areas of navigation, control system , landing gear and deceleration system essential for performing a high speed autonomous landing of a space – returning vehicle. ISRO has also demonstrated the reuse capability of flight hardware and flight system through this mission by reusing the wing body and flight system of RLV LEX-01.
The team was guided by Shri Sunil P, Programme Director , Advanced Technology and Systems Programme, VSCC ; Shri J Muthupandian, Project Director, RLV was the mission Director and Shri B. Karthik, Deputy Project Director, RLV was the Vehicle Director of the mission.
The mission was accomplished by Vikram Sarabhai Space Centre ( VSSC ), Liquid Propulsion System Centre ( LPSC ) and ISRO Inertial System Unit ( IISU ) with collaboration of various agencies like IAF, ADE, ADRDE, CEMILAC. ISTRAC provided tracking support, SAC provided a pseudolite system and a Ka- band Radar Altimeter, LPSC provided all pressure sensors on the wing body, IISU provided navigation hardware / software and integrated solution , meteorological and wind measurement support was provided by SDSC – SHAR and ground power support was provided by URSC.
A .Read the passage and answer the questions below – 1×3=3
1 . What is the full form of RLV ?
2. What is ‘Pushpak’ in this mission?
3. Write the name of the first RLV mission conducted by ISRO.
B. Fill in the blanks with information from the passage – 1×2=2
1 . The experiment was done at ——————————————————–.
2. Pushpak was lifted by ————————–.
C. Answer the questions with appropriate information from the passage –
1 . Write the purposes of the RLV
mission . 2
2. Write two vital points which were demonstrated through this mission by
ISRO . 2
3. Write the names of other organizations who supported ISRO to conduct the mission successfully . 4
4. Write a title for the passage and provide reason to choose the title. 2
Writing Skills –
1 . Write a short paragraph based on the RLV LEX -02 mission and ‘Pushpak’
of ISRO. 10
2. Write a newspaper report based on the RLV LEX -02 mission . 10
3. Write a dialogue between two friends about your experience about the ‘Pushpak’ mission of ISRO. 10
4. Write a Precis based on the above passage. 10
