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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Rupee falls 32 paise to all-time low of 95.20 against US dollar
Mumbai, Apr 30 (PTI): The rupee depreciated 32 paise to an all-time low of 95.20 against the US dollar in early trade on Thursday, weighed down by elevated Brent crude oil prices, hovering around USD 122 per barrel, and strong American currency.
Forex traders said the USD/INR pair may see further downside, as rising crude oil prices are likely to sharply impact India's import costs, while concerns over potential wider conflict in West Asia are fuelling investor anxiety.
Meanwhile, the US dollar added to gains after the US FED Reserve kept rates unchanged. Safe-haven demand was also boosted by another diplomatic setback between Washington and Tehran.
At the interbank foreign exchange market, the rupee opened at 95.01 against the US dollar, then lost some ground and touched an all-time low of 95.20 against the US dollar in initial trade, registering a fall of 32 paise over its previous close.
On Wednesday, the rupee depreciated 20 paise to close at an all-time low of 94.88 against the US dollar.
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"The main effect on the rupee has been from the rising oil prices, which touched USD 120 per barrel and looked headed for further upside as the US continues with its blockade of Iranian ports, while Iran does not allow any ship/tanker to pass through the Strait of Hormuz," said Anil Kumar Bhansali, Head of Treasury and Executive Director Finrex Treasury Advisors LLP.
Meanwhile, the dollar index, which gauges the greenback's strength against a basket of six currencies, was trading 0.01 per cent higher at 98.96.
Brent crude, the global oil benchmark, was trading higher by 3.16 per cent at USD 121.76 per barrel in futures trade.
On the domestic equity market front, Sensex tumbled 821.79 points to 76,674.57 in early trade, while the Nifty dived 287.3 points to 23,890.35.
Foreign Institutional Investors offloaded equities worth Rs 2,468.42 crore on Wednesday, according to exchange data.
"FPIs continue with their sale of Indian Equities and debt (the yield touched 7 per cent on Wednesday) and are also dollar buyers consistently," Bhansali added.
