Hypersonic Vehicles/Scramjets

[CCP]

http://rt.com/news/211575-china-hypersonic-missile-test/

 

[LETHALFORCE]

China Conducts Third Flight Test of Hypersonic Strike Vehicle | Washington Free Beacon

 

[LETHALFORCE]

China Confirms Test of Supersonic Nuclear Delivery Vehicle, US Calls it 'Extreme Manoeuvre'



BEIJING: Chinese defence ministry has confirmed the test of a supersonic nuclear delivery vehicle, a move described by the US as an "extreme manoeuvre" amid tension in the South China Sea.

The fourth successful test of hypersonic glide vehicle - which the US has dubbed the "Wu-14" - was carried out on Sunday. It was the People Liberation Army's fourth test of the weapon in 18 months.

"The scheduled scientific research and experiments in our territory is normal, and those tests are not targeted at any country and specific goals," Hong Kong-based South China Morning Post quoted the defence ministry as saying.

But military observers said the frequency of the tests showed Beijing was reinforcing its nuclear deterrent in response to Washington's continuedinterference in China's territorial disputes in the region, the Post reported.

US website the Washington Free Beacon, which first reported about the test, said the new strike vehicle is considered a high-technology strategic weapon capable of delivering nuclear or conventional warheads while travelling on the edge of space.

One of its key features is the ability to manoeuvre to avoid US missile defences, it said.

The Wu-14 was assessed as travelling up to 10 times the speed of sound, or around 7,680 miles per hour, it said.

Unlike earlier tests, the latest test demonstrated what one official called "extreme maneuvers" that appeared to analysts designed for penetrating through missile defense systems, it said.

The test took place a day before Central Military Commission vice-chairman Fan Changlong left for a week-long visit to the US. He since completed the visit during which he held talks with US Defence Secretary Ashton Carter.

Experts say the launch was timed to raise Fan's bargaining power in discussionswith the US, as well as to express Beijing's disapproval of Washington's sustained interference in the South China Sea, the Post reported.

"The test is aimed at helping Fan increase the People's Liberation Army's bargaining power on the negotiation table when he deals with his US counterpart," Macau-based military observer Antony Wong Dong said.

http://www.ndtv.com/world-news/chin...nic-nuclear-delivery-vehicle-771425?site=full

 

[LETHALFORCE]

China Confirms Hypersonic Missile Test


http://freebeacon.com/national-security/china-confirms-hypersonic-missile-test/

 

[power_monger]

The BMD systems developed by America still has the capability to handle these hypersonic missiles in terms of speed as many ballistic missiles have higher speed than these hypersonic cruise missiles. But main worry is maneuverability as ballistic missiles have a max maneuverability of 5g,with these highly maneuverable hypersonic missiles BMD systems will virtually be rendered useless.

 

[LETHALFORCE]

Ballistic missiles have a larger heat signature and a trajectory which makes them easier for detection . But Chinese claim this is a glide vehicle which would mean more or less undetectable.

 

[Rowdy]

Ballistic missiles have a larger heat signature and a trajectory which makes them easier for detection . But Chinese claim this is a glide vehicle which would mean more or less undetectable.

Nope.
As soon as you touch these speeds, due to the physics of hypersonic you will be detected.... glide or no glide, its the intense motion and heat in the air that gives you up.

 

[Rowdy]

The BMD systems developed by America still has the capability to handle these hypersonic missiles in terms of speed as many ballistic missiles have higher speed than these hypersonic cruise missiles. But main worry is maneuverability as ballistic missiles have a max maneuverability of 5g,with these highly maneuverable hypersonic missiles BMD systems will virtually be rendered useless.

Laser is coming.........................

 

[Rowdy]

Here is a good PPT on Hypersonic "double ramp" nozzles
http://www.uni-stuttgart.de/itlr/graduierten/grk_introduction.pdf
@Sakal Gharelu Ustad @Mad Indian @Yusuf

 

[LETHALFORCE]

Nope.
As soon as you touch these speeds, due to the physics of hypersonic you will be detected.... glide or no glide, its the intense motion and heat in the air that gives you up.

Glide bombs give very to no heat signature

http://defenceforumindia.com/forum/...ass-indigenous-guided-glide-bomb.65864/page-2

 

[Rowdy]

Glide bombs give very to no heat signature

http://defenceforumindia.com/forum/...ass-indigenous-guided-glide-bomb.65864/page-2

Not in the case of hypersonics....

 

[Khagesh]

@Rowdy Bro you are seriously underestimating hypersonic kills. Let me is if this is convincing for you.

Basic premise - time difference between the defender' counter and the attacker's evasion will always be decided by physical constraints and reaction timings thereof (attitude control motors, LD ratios, TW ratios) and these will always favour the fast attacker. Thus faster the attacker smaller the time difference that defender has to react. This was the start point for both the BM and the BMD. For a BM the last mile was kinematically the most energetic while the for the BMD the corresponding first mile was the hardest since it has to start from a dead stop. Also you must have noticed how the defender (eg. AAM) actually has to move faster and bear higher g-forces to be able to go after a slower bogie.

Counter - Fast speeds force linear predictable trajectories. BMD scores at either very high altitudes where usually you expect lesser maneuvering by the very high speed old style cheap RV (Aegis BMD) or if the just wait for the terminal phase of a slower moving expensive cruise missile (Aegis Combat System).

Counter Punch - Complicate the trajectories of the attacker and dominate by changing the expected kinematics of the BMD. This is where the PBV, MaRV, BGRV, MIRV, MRV, AMaRV, PGRV et al come in. The current 'disclosed' differences in velocities of a a PGRV and BMD is like 6 mach and if you want to achieve the minimum distance of say 332 meters to be able to evade even the directional warheads, you have to put a time difference of mere 0.16 seconds between the PGRV and BMD.

Double Punch - Hypersonic vehicles which do not even have a classical boost phase and mid course of a BM, that was the first warning for a physically slow system like a BMD. And yet boast of a being able to use to their advantage the aerodynamics afforded by mother nature, coincidentally the very thing that actually makes a defender slow.

!@#$%^& aka Some of the solutions but all of them exceedingly costly and yet with limited capacity - take the sensors to space aka SBIRS successor programs + take the BMD into space + DEW + Kinetic kill vehicles powered by rail guns.

Knock Out Punch - The exchange ratios were already tilted in favour of the attacker at the Counter Punch stage. The Double Punch will take at least 20-30 years to be successfully countered in any real manner ie. after accounting for exchange ratios. !@#$%^& stage is so expensive that even US will find it difficult to take that route, managing a Debt-GDP ratio that is already worse than the one in 1945.

Chinese and others have learnt the lessons of the Cold War well. They know how the Soviets were countered. And these new challengers are not going to walk the trap even while they will lay their own traps.

West ko chane ke jhaad pe chadhaya ja raha hai. Aur wo aadat se majboor hain.

 

[Rowdy]

@Rowdy Bro you are seriously underestimating hypersonic kills. Let me is if this is convincing for you.

Basic premise - time difference between the defender' counter and the attacker's evasion will always be decided by physical constraints and reaction timings thereof (attitude control motors, LD ratios, TW ratios) and these will always favour the fast attacker. Thus faster the attacker smaller the time difference that defender has to react. This was the start point for both the BM and the BMD. For a BM the last mile was kinematically the most energetic while the for the BMD the corresponding first mile was the hardest since it has to start from a dead stop. Also you must have noticed how the defender (eg. AAM) actually has to move faster and bear higher g-forces to be able to go after a slower bogie.

Counter - Fast speeds force linear predictable trajectories. BMD scores at either very high altitudes where usually you expect lesser maneuvering by the very high speed old style cheap RV (Aegis BMD) or if the just wait for the terminal phase of a slower moving expensive cruise missile (Aegis Combat System).

Counter Punch - Complicate the trajectories of the attacker and dominate by changing the expected kinematics of the BMD. This is where the PBV, MaRV, BGRV, MIRV, MRV, AMaRV, PGRV et al come in. The current 'disclosed' differences in velocities of a a PGRV and BMD is like 6 mach and if you want to achieve the minimum distance of say 332 meters to be able to evade even the directional warheads, you have to put a time difference of mere 0.16 seconds between the PGRV and BMD.

Double Punch - Hypersonic vehicles which do not even have a classical boost phase and mid course of a BM, that was the first warning for a physically slow system like a BMD. And yet boast of a being able to use to their advantage the aerodynamics afforded by mother nature, coincidentally the very thing that actually makes a defender slow.

!@#$%^& aka Some of the solutions but all of them exceedingly costly and yet with limited capacity - take the sensors to space aka SBIRS successor programs + take the BMD into space + DEW + Kinetic kill vehicles powered by rail guns.

Knock Out Punch - The exchange ratios were already tilted in favour of the attacker at the Counter Punch stage. The Double Punch will take at least 20-30 years to be successfully countered in any real manner ie. after accounting for exchange ratios. !@#$%^& stage is so expensive that even US will find it difficult to take that route, managing a Debt-GDP ratio that is already worse than the one in 1945.

Chinese and others have learnt the lessons of the Cold War well. They know how the Soviets were countered. And these new challengers are not going to walk the trap even while they will lay their own traps.

West ko chane ke jhaad pe chadhaya ja raha hai. Aur wo aadat se majboor hain.

Hoho ... ok But i am just saying for all the advantages of hypersonics, stealth is not one.... thats all.

 

[Khagesh]

Hoho ... ok But i am just saying for all the advantages of hypersonics, stealth is not one.... thats all.

O yaar Stealth was never any real advantage.

If you remember the early 90s. In India it was Pronoy Roy in his DD program "The World This Week" where he used to be very appreciative of the B-2 bomber that cannot be seen. He was merely echoing what the 'then west' used to say. Today the West says and their fans echo the new mantra 'stealth never meant cannot be seen, it only means it is difficult to see it given the right ifs and buts and speed is the new stealth'.

The main reason for MTCR is to force a cap on the genie. Unfortunately these days people just do not keep their word and 'plausible deniability' is a word that Americans invented into the dictionary.

Even they know that all the technology denial regimes are not going to work and that is why they are today very supportive of both China and India.

Notice how there is no technology denial in Lasers. Plasma research is already cooperative and eventually even Lasers will be cooperative only. Only a matter of time and money.

 

[LETHALFORCE]

Not in the case of hypersonics....

There is no engine in the traditional sense giving off exhaust.

 

[LETHALFORCE]

INDIAN SPACE RESEARCH ORGANISATION TO TEST ITS REUSABLE RLV SPACECRAFT

Artist's rendering of the Reusable Launch Vehicle-Technology Demonstration Program.
Image Credit: ISRO

TOMASZ NOWAKOWSKI
JUNE 2ND, 2015
The Indian Space Research Organisation (ISRO ) is planning the first test of its homegrown fully Reusable Launch Vehicle (RLV). The RLV-TD (Technology Demonstrator) mission is currently scheduled to be sent aloft in late July or early August, according to M.C. Dathan, the Director of Vikram Sarabhai Space Centre (VSSC).

The RLV, resembling a small winged aircraft, will be launched up to an altitude of 43 miles (70 km) from atop a solid booster rocket and then released. The spacecraft will re-enter the atmosphere and travel back to Earth in a controlled descent, to be recovered from the sea.

“It will be a winged vehicle that will take off vertically like a rocket and glide back to land horizontally like a plane,” said S. Somanath, the VSSC Deputy Director.

The development of RLV is in the final stages. The spacecraft has been configured to act as a flying test bed to evaluate various technologies; namely, hypersonic flight, autonomous landing, powered cruise flight, and hypersonic flight using air-breathing propulsion.

“The first stage burns on solid fuel. Atop it is the space plane which will return to Earth after the flight,” said ISRO chief Kiran Kumar.

Flight profile of the ISRO’s Reusable Launch Vehicle. Image Credit: ISRO

The first in the series of experimental flights is the hypersonic flight experiment (HEX) followed by the landing experiment (LEX), the return flight experiment (REX), and the scramjet propulsion experiment (SPEX).

A 2.5 mile (4 km) runway would be constructed for the RLV to make a horizontal landing in the subsequent test flights.

The RLV would be powered by an air-breathing scramjet currently under development. The first prototype of the scramjet with a 10 kg thrust is due to be tested in about one month’s time, followed by the development of a test facility for a more powerful engine.

ISRO hopes that RLV will cut satellite launch costs from $5,000 to $500 per every 2 lbs (1 kg).

“Development of RLV is a technical challenge and it involves development of cutting edge technologies. The magnitude of cost reduction depends on development and realization of fully reusable launch vehicle and its degree of reusability,” said Jitendra Singh, India’s Minister of State in the Prime Minister’s Office.

The test is a part of a larger plan to build a fully functional two stage to orbit (TSTO) fully re-usable vehicle.

If successful, the program would reduce the cost of space missions, making India more competitive in the launcher market.

http://www.spaceflightinsider.com/o...nisation-to-test-its-reusable-rlv-spacecraft/

 

[LETHALFORCE]

http://www.newindianexpress.com/wor...s-by-Warp-Drive/2015/07/30/article2948259.ece

To the Moon in Four Hours by Warp Drive




Interplanetary travel could be a step closer after scientists confirmed that an electromagnetic propulsion drive, which is fast enough to get to the Moon in four hours, actually works.

The EmDrive was developed by the British inventor Roger Shawyer nearly 15 years ago but was ridiculed at the time as being scientifically impossible.

It produces thrust by using solar power to generate multiple microwaves that move back and forth in an enclosed chamber. This means that until something fails or wears down, theoretically the engine could keep running for ever without the need for fuel.

The drive, which has been likened to Star Trek's Impulse Drive, has left scientists scratching their heads because it defies one of the fundamental concepts of physics - the conservation of momentum - which states that if something is propelled forward, something must be pushed in the opposite direction. So the forces inside the chamber should cancel each other out.

In recent years, however, Nasa has confirmed it believes it works and this week Martin Tajmar, chair for Space Systems at Dresden University of Technology in Germany, also showed that the EmDrive produces thrust.

The drive is capable of producing thrust several thousand times greater than a standard photon rocket and could get to Mars within 70 days or Pluto within 18 months. A trip to Alpha Centauri, which would take tens of thousands of years to reach right now, could be reached in just 100 years.

"Our test campaign cannot confirm or refute the claims of the EmDrive but intends to independently assess possible side-effects in the measurements methods used so far," said Prof Tajmar.

"Nevertheless, we do observe thrust close to the actual predictions after eliminating many possible error sources that should warrant further investigation into the phenomena."

"Our measurements reveal thrusts as expected from previous claims after carefully studying thermal and electromagnetic interferences.

'If true, this could certainly revolutionise space travel.'

Mr Shawyer also says he is just a few months away from publishing new results in a peer-reviewed journal confirming that his drive works.

However, scientists still have no idea how it works. Nasa suggested that it could have something to do with the technology manipulating subatomic particles which constantly pop in and out of existence in empty space.

 

[A chauhan]

INDIAN SPACE RESEARCH ORGANISATION TO TEST ITS REUSABLE RLV SPACECRAFT

Artist's rendering of the Reusable Launch Vehicle-Technology Demonstration Program.
Image Credit: ISRO

TOMASZ NOWAKOWSKI
JUNE 2ND, 2015
The Indian Space Research Organisation (ISRO ) is planning the first test of its homegrown fully Reusable Launch Vehicle (RLV). The RLV-TD (Technology Demonstrator) mission is currently scheduled to be sent aloft in late July or early August, according to M.C. Dathan, the Director of Vikram Sarabhai Space Centre (VSSC).

The RLV, resembling a small winged aircraft, will be launched up to an altitude of 43 miles (70 km) from atop a solid booster rocket and then released. The spacecraft will re-enter the atmosphere and travel back to Earth in a controlled descent, to be recovered from the sea.

“It will be a winged vehicle that will take off vertically like a rocket and glide back to land horizontally like a plane,” said S. Somanath, the VSSC Deputy Director.

The development of RLV is in the final stages. The spacecraft has been configured to act as a flying test bed to evaluate various technologies; namely, hypersonic flight, autonomous landing, powered cruise flight, and hypersonic flight using air-breathing propulsion.

“The first stage burns on solid fuel. Atop it is the space plane which will return to Earth after the flight,” said ISRO chief Kiran Kumar.

Flight profile of the ISRO’s Reusable Launch Vehicle. Image Credit: ISRO

The first in the series of experimental flights is the hypersonic flight experiment (HEX) followed by the landing experiment (LEX), the return flight experiment (REX), and the scramjet propulsion experiment (SPEX).

A 2.5 mile (4 km) runway would be constructed for the RLV to make a horizontal landing in the subsequent test flights.

The RLV would be powered by an air-breathing scramjet currently under development. The first prototype of the scramjet with a 10 kg thrust is due to be tested in about one month’s time, followed by the development of a test facility for a more powerful engine.

ISRO hopes that RLV will cut satellite launch costs from $5,000 to $500 per every 2 lbs (1 kg).

“Development of RLV is a technical challenge and it involves development of cutting edge technologies. The magnitude of cost reduction depends on development and realization of fully reusable launch vehicle and its degree of reusability,” said Jitendra Singh, India’s Minister of State in the Prime Minister’s Office.

The test is a part of a larger plan to build a fully functional two stage to orbit (TSTO) fully re-usable vehicle.

If successful, the program would reduce the cost of space missions, making India more competitive in the launcher market.

http://www.spaceflightinsider.com/o...nisation-to-test-its-reusable-rlv-spacecraft/

Now it'll be tested on the second half of the October month as per some news articles.

 

[warrior monk]

Hypersonic Technology Demonstrator Vehicle (HSTDV) of DRDO
It has a scram jet integrated vehicle for combustion inside the engine at high speeds , It will be mounted on AGNI missiles to inject the hyper sonic vehicle at the altitude of 32 km at Mach 7 from where the vehicle will separate from the missile .

 

[LETHALFORCE]

http://www.spacedaily.com/m/reports...ced_Scramjet_Engine_in_Third_Quarter_999.html

India Set to Test Domestically-Produced Scramjet Engine in third quarter



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