India’s first Hypersonic Technology Demonstrator Vehicle being tested

[HariPrasad]

Material for thermal insulation shouldn't be a problem since India has been developing many RVs for its IRBMs and ICBMs which has terminal velocity in excess of mach 20+.

But this IRBM do not have sensitive sensors to home on to target and which are exposed to atmosphere. These sensors shall burn in atmosphere living missiles guidance less.

 

[bloo]

I will sincerely congrat the Indian if they achieved the real breakthru but by misled others and twisted facts to suit its own agenda. Trying to claim credit that does not deserve. That more or less show what kind of culture and inferiority complex Indian has.

Trying desperate to paint a ballistic missile as hypersonic vehicle and brag about it is a terrible things to do. We are not jealous in fact, we feel disgusted of that act.

And the fact, China is not the one who brag and openly talk about their new hypersonic vehicle achievement. It is USA who reveal our secret trial with careful monitoring and announce to the world which force us no choice but to humbly claim we are right up there on par with US on hypersonic vehicle technology.

Keep telling yourself that it'll only help you sleep at night better.
Since you know nothing about Shaurya why don't you read #71 and educate yourself.
Your disgust holds no value to anyone, and on the contrary it is your superiority complex that you all can not digest the fact that India has a futuristic system, which is why you all have to come to an Indian thread to rant just to console yourself.
PS- Ironic isn't it? If you are so humble why do you have to prove it to the world that you are, please leave us foolish people to dwell in our own fantasies and you enjoy your own world of denial..

 

[HariPrasad]

Prove it

Shaurya (missile) - Wikipedia, the free encyclopedia

Prove that it never leaves the atmosphere.

Why don't you read the full artical of link already provided.

 

[kurup]

The Shaurya is a shaped trajectory hypersonic missile. It is in a category of it's own, it's clearly not a ballistic missile, but a 20-30m CEP isn't accurate enough to be a decent cruise missile. I would say it would be used to target large infrastructure/groups of enemy slow-movers, etc.

A 20-30m CEP is actually enough for a nuclear armed missile .

 

[Indo-guy]

Some pics and images of HSTDV from net

Nose cone

 

[HariPrasad]

I will sincerely congrat the Indian if they achieved the real breakthru but by misled others and twisted facts to suit its own agenda. Trying to claim credit that does not deserve. That more or less show what kind of culture and inferiority complex Indian has.

Trying desperate to paint a ballistic missile as hypersonic vehicle and brag about it is a terrible things to do. We are not jealous in fact, we feel disgusted of that act.

And the fact, China is not the one who brag and openly talk about their new hypersonic vehicle achievement. It is USA who reveal our secret trial with careful monitoring and announce to the world which force us no choice but to humbly claim we are right up there on par with US on hypersonic vehicle technology.

Your problem is that when china does that, It is a super achievement. You guys jump cheering the same. India has done it a decade ago. You guys are hell band to prove that it is not.

Now please enlight me how the so called test of China is different from what we had done a decade ago.

 

[Indo-guy]

 

[HariPrasad]

If you accept the fact that mach 7,5 is its maximum speed on terminal phase, then you also agree it is a ballistic missile , not a cruise missile.

By which Logic?

Does same logic apply to Chinese test when they say that Missile attained a speed of Mach 10?

 

[Beast]

Your problem is that when china does that, It is a super achievement. You guys jump cheering the same. India has done it a decade ago. You guys are hell band to prove that it is not.

Now please enlight me how the so called test of China is different from what we had done a decade ago.

The problem is we do not proclaim that. It is the US who monitor our test ,attest that only US and China are the 2 countries that conduct real field test of hypersonic vehicle.

And you see, Indian brag again. You have so far conducted none of hypersonic vehicle. A free falling ballistic warhead is not a hyersonic vehicle. It does not have air breathing propulsion which so called scramjet. Nor can it change course dramatically like a real cruise missile.

If that so. Pakistan will have a hypersonice vehicle weapon too. Since their ballistic missile can attain mach 7.5 speed too.

 

[HariPrasad]

A 20-30m CEP is actually enough for a nuclear armed missile .

It had that accuracy in its initial tests. I think that it is reduced to near Zero in now. Even our Ballistic missiles have that near Zero accuracy.

 

[Indo-guy]

Tarmak007 -- A bold blog on Indian defence: FUTURE STRIKE: India's hypersonic vehicle (HSTDV) ready for ground tests | Stage-separation & air-intake wind-tunnel experiments in Russia


FUTURE STRIKE: India's hypersonic vehicle (HSTDV) ready for ground tests | Stage-separation & air-intake wind-tunnel experiments in Russia

By Anantha Krishnan M
Express News Service

Bangalore/Hyderabad: Forty kilometers in 20 seconds! The time taken to eat a biscuit. Well, that's the primary mission objective scientists at the Defence Research and Development Laboratory (DRDL) in Hyderabad are aiming for, probably as a first step towards unleashing a futuristic hypersonic cruise missile. And, when Santa rings the X'Mas bell in 2014, we would have known the fate of this tech-cocktail currently being measured and mixed to perfection by a group of brainy boys of Indian defence.
The scientists have already conceptualized a Hypersonic Test Demonstration Vehicle (HSTDV) for an autonomous flight of a scramjet-integrated (combustion inside the engine occurs at 1.2 km/sec) hypersonic air-breathing vehicle for a short duration of about 20 seconds.

The scramjet-integrated vehicle is mounted on top of an already proven Agni missile booster motor and protected by aerodynamic fairings. The solid booster injects the hypersonic vehicle at the desired altitude of 32 km and Mach number of 6.5. The aerodynamic fairings are separated and the hypersonic vehicle is also separated from the booster. After separation, the scramjet engine is ignited and the vehicle cruises for a short duration of 20 seconds. High temperature materials are used for the engine and airframe construction.
The scramjet integrated vehicle has been designed considering the aero-propulsion interactions. The performance analysis indicates the capability of the vehicle to generate adequate positive thrust margin ensuring cruise condition. “The materials have been identified, thermo-structural design completed and the airframe also fabricated. A scramjet combustor also has been designed and tested in connect pipe mode test facility at DRDL and the performance has been satisfactory, so far. A flight- worthy engine using high temperature resistant materials is under fabrication," sources said.
The first aerodynamic wind-tunnel test was held in Israel (2007) and later in Russia (2009) as India doesn't have a hypersonic facility to test larger cross-section of platforms. "Next year some more missions are planned in Russia, including stage separation and air intake tests. We are also planning a full-scale panel-separation test at DRDL itself," sources told Express.
The scientists have already proved technologies for aerodynamics, aero-thermodynamics, engine and hot structures through design and ground testing. "Ahead of the launch, we will have to now focus on the mechanical and electrical integration, control and guidance system along with their packaging, checkout system, HILS (hardware in loop simulation) and launch readiness," sources said. Technologies like configuration tests, combustion and full-scale cruise vehicle structural aspects have also been proved taking the project past the half-way mark.
India is the second country to have planned an autonomous flight of the hypersonic air-breathing vehicle; the first being the USA which demonstrated the flights through X-43 and X-51 programs. France is also planning the autonomous flight sometime in 2015 through LEA program.
The HSTDV project directorate was formed in 2005. It is now confirmed that technology for a 600-second test to cover a range of 1,500 km is also taking shape to establish future strike technologies against hardened and time-critical targets.

The problem is we do not proclaim that. It is the US who monitor our test ,attest that only US and China are the 2 countries that conduct real field test of hypersonic vehicle.

Don't worry India will join the club at appropriate time !

 

[HariPrasad]

The problem is we do not proclaim that. It is the US who monitor our test ,attest that only US and China are the 2 countries that conduct real field test of hypersonic vehicle.

And you see, Indian brag again. You have so far conducted none of hypersonic vehicle. A free falling ballistic warhead is not a hyersonic vehicle. It does not have air breathing propulsion which so called scramjet. Nor can it change course dramatically like a real cruise missile.

If that so. Pakistan will have a hypersonice vehicle weapon too. Since their ballistic missile can attain mach 7.5 speed too.

You need to read properly. US is not referring combustion technology. It simply say the range. US hypersonic Vehicle is totally different from China.

You skip my question. Pl explain How does Chinese test differ from Indian tests?

You call it free falling either because of Ignorance or your psychological blockage of reluctance to accept Indian Achievement.

 

[jarves]

The first aerodynamic wind-tunnel test was held in Israel (2007) and later in Russia (2009) as India doesn't have a hypersonic facility to test larger cross-section of platforms. "Next year some more missions are planned in Russia, time-critical targets.

Arent we building one?
what about supersonic testing facility?
Do we have all the facilities for testing Kaveri engine?

 

[Indo-guy]

Hypersonic Brahmos engine is ready what we lack is materials to protect avionics in high temperature generated out of air friction.

We are working towards all problems involved piecemeal ...

Hence the time delays ....

Dr. R. Palaninathan

1.‘Ablation Studies on Re-entry Capsule’: Sponsorted by Advanced Naval System Programme (ANSP), Defence Research and Development Organization, 2009-2010 (on going).
Space vehicles, while re-entering Earths atmosphere, encounter aerodynamic heating, intensity of which depends on the type of mission. Intercontinental ballistic missiles are subjected to severe (hyper thermal) heating conditions. Ablative thermal protection systems are required for such vehicles, wherein thermal energy is expended by way of sacrificing the material. Composite materials, carbon-carbon for nose and carbon-phenolic for after body, are used. This project involved development of finite element based software to model the surface recession (ablation) with time. Two models: (i) material removal by oxidation of carbon at high temperatures (chemical ablation) using analytical expressions and (ii) erosion of carbon-phenolic layered material by aerodynamic surface shear (mechanical ablation) are used.

Sketch of Re-entry Capsule
2. ‘Thermostructural Analysis of Metallic Thermal Protection System’: Sponsored by Vikram Sarabhai Space Centre, Thiruvananthapuram, Indian Space Research Organisation, 2008-09.
Manned space missions returning to the Earth require thermal protection system to absorb the thermal energy due to aerodynamic heating. Of the four mechanisms of thermal protection: (i) heat sink, (ii) cooling, (iii) surface insulation and (iv) ablation, the third one is considered suitable for vehicles used in multiple missions, such as space shuttle. In order to avoid / reduce damage, requiring extensive repair before next flight, metallic thermal protection systems (MTPS) are considered suitable. ISRO is presently involved in the design and development of MTPS for its Re-usable Launch Vehicle (RLV) programme. A finite element method based software has been developed as a design tool to carry out thermal and structural analyses of MTPS.

Sketch of a Metallic Thermal Protection System
3. ‘Erosion Modeling of HSTDV Nose Tip’: Sponsored by Defense Research and Development Laboratory, Hyderabad, Defense Research & Development Organization, 2003-04.
The aerospace vehicles that fly at mach > 5 require thermal protection system (TPS) to withstand the intense thermal loads during flight with in the atmosphere. The TPS are made of ablative materials, either high temperature ablators (HTA) or low temperature ablators (LTA), depending on the mission type. This work was concerned with modeling of surface recession of carbon-carbon composite (HTA) nose tip of hypersonic technology demonstrator vehicle (HSTDV), under development. The recession was modeled in two ways: i. chemical ablation due to oxidation of carbon and ii. mechanical ablation due to erosion of surface material by aerodynamic shear. A finite element based software (employing 8-21 variable node solid elements) for the thermo-mechanical analysis with the capability for moving the boundary to the extent of surface recession at each time step has been developed.

4. ‘S200 Motor Case Stress Analysis’: Sponsored by Vikram Sarabhai Space Center, Trivandrum, Indian Space Research Organization, 2003-04.
S200 Motor is the strap-on for the augmented Geostationary Satellite Launch Vehicle (GSLV-MkIII) under development. Due to its large size (about 20 m long and 3.2 m dia.), the motor has to be made in segments and connected using tang-clevis-pin type joints. This joint is the weak link in the construction. The failure of Space Shuttle Challenger is the case in point. The work involved analyses of segment joint, bucket-flange joint and for other handling conditions. 3-D solid element with both geometric and material nonlinear capabilities was employed. The effects of friction and contact pressures between the mating surfaces were accounted. The pinhole enlargement due to the plastic strain and the effects of friction in reducing the same were studied.

Segment Joint - Stress Concentration Regions
5. ‘Software for Nozzleless Booster Structural Analysis’: Sponsored by Defense Research and Development Laboratory, Hyderabad, Defense Research and Development Organization, Ministry of Defense, 1998-99.
The aim of this study is to estimate the current health of an aging structure from the vibration response. Damage of the structure is defined in terms of fatigue cracks. The focus is on identifying the location and size of fatigue cracks in a vibrating system, from the vibration response time histories. The efficiency and usefulness of probabilistic filtering techniques is being explored for the damage identification. Experimental studies are also being carried out to complement the theoretical/computational developments.

 

[HariPrasad]

Don't worry India will join the club at appropriate time !

Pl read the article. India will be the second country to do that after US. Chinese test is not the test using scremjet but rocket engine with air independent combustion.