China tests three hypersonic missiles at one go
Beijing, Sep 30 : China has achieved a feat of testing three types of hypersonic aircraft missiles at the same time, a media report has said.
The tests of three scaled-down models of "wide-speed-range vehicles", which can fly at from hypersonic velocity to lower than the speed of sound, were carried out on September 21 at the Jiuquan Satellite Launch Centre in northwest China, according to state broadcaster CCTV.
In the news footage, three models representing differently shaped designs, code-named D18-1S, D18-2S and D18-3S, were lifted and then dropped from a balloon.
This was China's first test of this type of hypersonic aircraft, whose speed will be adjustable, meaning its scientists are working on another major aim - precision strike - towards an unstoppable nuclear-capable weapon, the South China Morning Post said.
Last month, Chinese scientists conducted their first experimental flight of a hypersonic glider named Starry Sky 2 that was launched by a rocket and then flew on its own shockwave at Mach 6 (six times the speed of sound or 7,344km/h).
Once fully developed, its sheer speed would be capable of penetrating any anti-missile defence system currently available.
The wide-speed-range aircraft, meanwhile, will have additional capability to slow down and fly in a stable mode at a lower velocity, which allows it in the terminal stage to aim, adjust trajectory and position and strike targets more precisely, according to military observers.
"Their technologies can be inter-complementary," said military commentator Song Zhongping, based in Hong Kong. "They can be combined together and make a hypersonic missile."
Researchers measured the respective aerodynamic features of three different design shapes and recorded their processes of falling, accelerating, breaking the sonic barrier, aerodynamic rebound, parachute opening, landing and retrieving while collecting data, CCTV said.
Song Zhongping said it was to compare and choose from the three designs. There will be further wind tunnel tests with larger or real-size models before finalising the aerodynamic configuration of the vehicle.
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25 killed in lightning strikes, hailstorms in several districts of Bihar
Patna, Apr 10 (PTI): At least 25 people were killed in lightning strikes and hailstorms in several districts of Bihar on Thursday, officials said.
According to a statement issued by the Chief Minister's Office (CMO), Nalanda reported 18 deaths, followed by two in Siwan, one each in Katihar, Darbhanga, Begusarai, Bhagalpur and Jehanabad.
RJD leader Tejashwi Yadav, however, claimed in a post on X that over 50 people died on Thursday.
“I am deeply saddened by the tragic deaths of more than 50 people in various incidents of storm, rain, lightning, tree and wall collapse in Bihar. I express my deepest condolences. May God provide strength to the families affected by the disaster in this hour of grief,” he wrote in Hindi.
He also said that the state government should compensate farmers for their crop loss due to the sudden rain and give them proper compensation.
Earlier, Chief Minister Nitish Kumar condoled the deaths and announced an ex gratia of Rs 4 lakh each for the next of kin of the deceased.
On Wednesday, 13 people had died in lightning strikes in four districts of Bihar.
The India Meteorological Department has issued an ‘orange alert’ (be prepared) for a number of districts, including Darbhanga, East Champaran, Gopalganj, West Champaran, Kishanganj, Araria, Supaul, Gaya, Sitamarhi, Sheohar, Nalanda, Nawada and Patna.
It has also forecast heavy rainfall on Friday and Saturday in these districts.
"Thunderstorms with lightning and gusty winds (40-50 kmph) likely to occur at few places over Madhubani, Darbhanga, East Champaran, Gopalganj, West Champaran, Kishanganj, Araria, Supaul, Gaya, Sitamarhi, Sheohar, Nalanda, Nawada, Patna," the IMD said in a bulletin.
Water-logging was also reported on Thursday from several parts of Patna following heavy rain.
The state capital recorded an average of 42.6 mm rainfall till 5.30 pm.
Officials of the Patna Municipal Corporation (PMC) and district administration, however, claimed that rainwater was drained out in the shortest possible time despite the downpour.
