India to Conduct its First Hypersonic Flight Experiment (HEX-01) for AVATAR RLV-TD in March!

[SOHEIL]

Launcher :

PSOM-XL

But with some changes in nozzle !

 

[karan21]

Launcher :

PSOM-XL

But with some changes in nozzle !

Which launcher is this?? The RLV-TD??

 

[kurup]

Which launcher is this?? The RLV-TD??

PSOM- XL is the solid rocket booster used in PSLV-XL .

According to him it will be used in this mission to take up the RLV-TD .

 

[SOHEIL]

PSOM- XL is the solid rocket booster used in PSLV-XL .

According to him it will be used in this mission to take up the RLV-TD .

What do you think ?

 

[kurup]

What do you think ?

Doubt it .

PSOM-XL carries 12tons of fuel while PSOM carries 9tons .

The booster used in HE01 is S9 which carries 9tons of fuel .

So it can either be PSOM , modified PSOM or new one designed specifically for the purpose .

 

[kaku1]

What do you think ?

Here bro

 

[Indo-guy]

Doubt it .

PSOM-XL carries 12tons of fuel while PSOM carries 9tons .

The booster used in HE01 is S9 which carries tons of fuel .

So it can either be PSOM or new designed specifically for the purpose .

don't think they will design new rocket just for the test of HEX ....

 

[kurup]

don't think they will design new rocket just for the test of HEX ....

Edited my post .

So most probably it will be a modified PSOM .

 

[El Weirdo]

Sadhu. Sadhu. Sadhu.

Best of luck.

Sadhu. Sadhu. Sadhu.. ????
Do you have any Vipassana link?

 

[+4vsgorillas-Apebane]

Sadhu. Sadhu. Sadhu.. ????
Do you have any Vipassana link?

Ha, good.catch.

I got back a week ago and feel awesome.

 

[amardeep mishra]

Till date only 5 nations - US, Russia, China, Japan and France/Europe (ESA) posses this technology.

Hi there!
China is developing their 120 tonnes thrust semi-cryogenic engine and it is not ready yet.As for ISRO,they are working on a 200 tonnes thrust SCE that will replace vikas engine as the main central core in GSLV MK-3.So it is certainly not correct to say that chinese are ahead of us in SCE technology,having said that,chinese are definitely ahead in the manned space program with "human rated launchers"-which is no small feat!
Once developed, ISROs semi-cryogenic engine will be bigger than the chinese SCE which they are developing at the moment!

I would also like to point out that the mainstay of chinese upper stage booster happens to be a cryo engine with nominal vac thrust of close to our own CE that was put on GSLV D5 flight(close to 75kN)- however chinese engine is different in the sense that it uses a clustered configuration with two thrusters providing a total thrust of close to 150kN! Their engine also has re-starting capability which translates into precise planetary insertions.However their engine seems to be based on gas generator cycle as opposed to india's staged combustion cycle.
With CE-20, india will have upper hand in cryogenic engine(also note that CE-20 will feature re-ignition capability) but that is not to say chinese are sitting idle,they are working on their 600kN cryo engine(although that is still some time away for functional deployment).
India's 600kN cryo is unfortunately still on drawing boards
@Chanakya's_Chant

 

[El Weirdo]

Ha, good.catch.

I got back a week ago and feel awesome.

What an irony , Indians do really respect all the Dharmic countries , A time where all the Islamic countries are siding with each other , Christians countries doing the same , why not India and China and Japan ? Really sad to see the state of affairs we are in.
Anyway , continue your practise , dont ever give up...
and please save North India and Delhi from your wreath .. before posting just watch your sensations come and go

 

[Chanakya's_Chant]

Last test under the RLV Programme in 2006 -
​

Scramjet: ISRO makes major breakthrough

NATIONAL space agency ISRO said it has achieved an early step in the race for low-cost, reusable space vehicle technology with a brief demonstration of its scramjet (supersonic combustion ramjet).

"As such technologies are in a very nascent stage of development the world over, ISRO considers this achievement as a major technology breakthrough in air-breathing propulsion," an ISRO release said.

Vikram Sarabhai Space Centre (VSCC), Thiruvananthapuram, has designed, developed and tested the scramjet as part of the ongoing work on air-breathing propulsion. VSSC demonstrated the scramjet for seven seconds at Mach 6 (six times the speed of sound) through a series of ground tests.

The complex air-breathing rockets under development use atmospheric oxygen during flight, while today's rockets carry both the oxygen and the fuel. As such they will be lighter, more efficient and cost some 15 times less than the conventional ones.

The next step would be to test it on ground at Sriharikota, enhance to Mach 10 and then on a Rohini sounding rocket, "which would be a major achievement," a spokesman said. An actual rocket using this technology would be at least 10 years away.

According to the release, "Other than US, which has recently carried out in-flight demonstration of supersonic combustion for a short duration (at a record Mach 10), work related to supersonic combustor designs in Japan, China, Russia, Australia, Europe and others are either in their initial or ground testing phase."

Current launchers cannot be re-used. The cost per kg of payload of such systems is a high $12,000-15,000 per kg. To make space transport more affordable, this cost has to be cut to $500-1,000 per kg. It will need both, a reusable and recoverable system and a more efficient propulsion system like air-breathing rockets. This is what space-faring nations are working at.

Source:- Scramjet: ISRO makes major breakthrough | Business Line

 

[amardeep mishra]

Vikram Sarabhai Space Centre (VSCC), Thiruvananthapuram, has designed, developed and tested the scramjet as part of the ongoing work on air-breathing propulsion. VSSC demonstrated the scramjet for seven seconds at Mach 6 (six times the speed of sound) through a series of ground tests.

I would like to point out that DRDO had conducted test firing of a scramjet engine back in 2011 in laboratory conditions for 20s duration.They intend to eventually increase the duration to at least 2minutes for any meaningful application. the flow dynamics at mach 6 and combustion issues associated with such mach numbers are quite different from sub sonic or supersonic regimes!
I have a research paper that was produced by DRDL on the subject of their scramjet engine

 

[amardeep mishra]

NEURAL NETWORK BASED FLUSH AIR DATA SYSTEM (FADS) FOR REUSABLE LAUNCH VEHICLES

@shaheenmissile
@Oscar
This is an advanced version of air-data sensor that i was explaining in reference to cruise missiles that day.This one uses neural networks.
Neural Air Data Sensing and Control for Hypersonic Vehicles
This link that i am quoting here is from NASA,however similar research has been carried out by ISRO for implementation on their re-usable vehicle
here is a link from IIT kharagpur on a similar topic
http://www.ae.iitkgp.ernet.in/files/introduction.pdf

@Oscar
Voila!
Here is actual IEEE research journal published by ISRO on the subject of FLUSH AIR DATA SENSOR.Now these are the kind of research that normally go un-nticed by our media, but have vast military implications! I would urge you to go through this research paper!
IEEE Xplore Abstract










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A method for accurate estimation of altitude in re-entry vehicles using flush air data sensing syste...

Here is another link pertaining to indian research in advanced neural networks based air data sensor.This kind of research is perhaps what makes ISRO one of the top indian organizations in terms of research footprint
IAC Archive — IAC-10/D2/5/9