Hypersonic Technology Demonstrator Vehicle (HSTDV) is developed by Defence Research and Development Organisation (DRDO) and is based on hypersonic propulsion technologies,This Vehicle was designed to test the vehicle performance of a scramjet engine.
The vehicle also was intended to test the associated technologies such as aerodynamic design and aero-thermal design, materials, and hot structures at those insane speeds. The HSTDV has an air-breathing scramjet engine which means that it uses atmospheric Oxygen for propulsion.
The HSTDV cruise vehicle is mounted on a solid rocket motor, which takes it to a required altitude. Once it attains certain Mach numbers for speed, the cruise vehicle is ejected out of the launch vehicle. After that, the scramjet engine is ignited automatically.
What is scramjet engine?
A scramjet engine is an improvement over the ramjet engine because the former operates efficiently at hypersonic speeds and allows supersonic combustion. Ramjets,operate well at supersonic speeds around Mach 3 but their efficiency drops at hyprsonic speed
Scramjet engines do not work from the stall condition and these vehicles need to be carried to supersonic speeds to make them work. The air entering the vehicle needs to be supersonic.
How fast is HSTDV ?
HSTDV can cruise at a speed of Mach 6 and rise up to an altitude of 32.5km in just 20 seconds. When DRDO tested the HSDTV with the help of Agni missile boosters, it successfully achieved an altitude of over 30,000 ft in just 22 seconds at a speed of Mach 6.
The speed and maneuverability enable hypersonic missiles to penetrate most missile defenses.
The only countries in the world which have hypersonic technology are the United States of America, Russia, China and India.
This hypersonic technology provides us with a massive strategic impact and improves the strike capabilities of Indian armed forces In addition to war applications,India will also use HSTDV for multiple civilian applications including the launching of small satellites at low cost
India's #ProjectKusha enters critical phase as DRDO prepares for M1 interceptor test in September 2025.
This indigenous Long Range Air Defence System promises to match Russia's S-500 and surpasses S-400 in some key capabilities.
🧵 Thread on what makes this a Game-Changer ⬇️
What is #ProjectKusha ?
• Extended Range Air Defence System (ERADS)
• Bridges capability gap between MR-SAM(80 km) & S-400 (400 km)
• Designed to counter stealth aircraft, UAVs, cruise missiles & ASBMs
• Fully indigenous, cost-effective solution under Atmanirbhar Bharat
Why Now ?
The Project Kusha has gained attention after the May 2025 India-Pakistan conflict (#OperationSindoor), where air defence systems proved vital against drones and cruise missiles, underscoring the need for indigenous capabilities like Kusha.
With cities across the country grappling with flooding issues, perhaps Tokyo's flood tunnel could hold the key to a solution.
🧵𝐓𝐡𝐫𝐞𝐚𝐝
(1/9)
Flooding wreaks havoc in many Indian cities like Delhi and Mumbai. As we search for effective solutions,The Tokyo flood tunnel,officially known as the Metropolitan Area Outer Underground Discharge Channel(MAOUDC) offers valuable inspiration for tackling these challenges.
(2/9)
Tokyo is one of the world's most densely populated cities, receives an average annual rainfall of 1600mm. Tokyo's Flood Tunnel is a massive underground system designed to mitigate flooding during heavy rains.
In March 1963, the first batch of MiG-21 arrived in India. Over the past 60 years,the aircraft, including all variants flown by the IAF, have been part of various operations, including the 1971 Indo-Pak War, 1999 Kargil war and the most recent air duel after the Balakot airstrike
The Indian Air Force force has operated about 872 MiG-21 fighters since the time they were first inducted in the 1963.
Hindustan Aeronautics Limited licence-produced 657 of these jets. Over the years, avionics, missiles and radars were upgraded with newer versions.
Several countries, most notably US & Israel are actively working to developing small, short-range drones that could operate in swarms. In the event of a war, these drones would utilize Artificial Intelligence to work together to attack targets.
2/14
These Portable loitering munitions aka Kamikaze drones would be packed with explosives and used as suicide drones. Upon approaching their targets,these drones would explode destroying or disabling their targets.They are already changing warfare in Armenia, Ukraine and Syria.
3/14
Pakistan has confirmed the acquisition of Full Squadron of 25 FC-20E fighter jets, export variant of J-10C from China in Response to India's Rafale fighter jets
As Pakistan’s fifth-generation fighter jet program, Project Azm, hangs in balance and its present fleet of JF-17 does not look competitive enough to challenge Indian Rafales, the J-10C (FC-20E) becomes an obvious choice for Pakistan...
According reports, a Pakistani lawmaker Dr.Afnan Ullah Khan questioned the move to acquire the J-10C,saying that does not match upto Rafale jets made by French Dassault Aviation. Pakistan, which is struggling to sustain its economy, continues to procure defence equipment...