ISRO Tests New Rocket Engine That Could Make Launches 10 Times Cheaper

[ashok321]

India's Defense Minister is an IITian himself - The best example of being an intellectual:

Imagine if this happened in the USA:

You are fired - Vince McMohan, Chairman WWE.

 

[RISING SUN]

Your logic is that IITians are the best minds among 1.3 billion Indians, fair enough. By that logic Indian hockey and cricket team features the best athletes among 1.3 billion Indians so they should be the best which they aren't.
By your logic every coyntry having population less than India should have less capable engineers.

But again,I'm not starting a debate.I have always admitted than IITians are better if not equal than their Pakistani counterparts.

Sorry to say but they don't have the autonomy as IITs wield. Just look in the past all major administrator belong to some party or other in someway. So they do partiality, and all players of Indian cricket team(BCCI controlled) are only creamy layer ones.

 

[Nilgiri]

Good news but 5s test is too small. Here is a presentation on a scramjet .. key challange : Getting the material to withstand SCRAMJET combustion. Very hard
http://www.uni-stuttgart.de/itlr/graduierten/grk_introduction.pdf

Has it been confirmed this ISRO test was 5 seconds?

 

[proud_indian]

Has it been confirmed this ISRO test was 5 seconds?

ISRO Chairman Dr Kiran Kumar told NDTV the test was "a grand success".

The rocket, also called Advanced Technology Vehicle (ATV), had lift-off weight of 3,000 kg and the new air-breathing engine was tested for a mere 5 seconds.

 

[Jamwal's]

LOL, a country that can't make bullets claim to have breakthrough in scramjet engine

LAMO bang your head after seeing the legit

Bullets can be exported at dirt cheap price, But Make it habit, more are coming, this is the start.

https://en.wikipedia.org/wiki/Mars_Orbiter_Mission

 

[AugenBlick]

Has it been confirmed this ISRO test was 5 seconds?

Yeah I read it in the news report... I am really not sure how much longer we can sustain this because metallurgy has been our weak spot. Not saying it's a lie/deception, just that I am not aware of any metallurgical breakthroughs that might have happened. Especially if this is gonna be reusable.

@amardeep mishra

Do you know if this was the classical "double ramp" config? WHich material is used to make this engine, especially nozzels and combustion chamber?

 

[Anubis]

The magic ticket to the future would be to develop a hybrid engine....that does not require external propulsion but can produce its own thrust from the getgo....did anyone think of retractable turbine blades? It could start of a Ramjet(like the Blackbird) and then after crossing Mach 3 or 4 retract or fold its blades to kind of convert to a scramjet....that'd be cool.

 

[akshay gehlot]

I got into U of Cali, UPenn Umichigan but wasn't even close in getting IIT. It was above my level, I simply could not give the crazy hours and extreme amount of hardwork required to get a good seat in the IIT's, it's that much more difficult when your competing with 1.5 million other people, some of who have spent half their lives trying to crack this one single paper, attending special coaching from grades 4 and 5. The only reason why IIT 's aren't in the top 50 of the world is because they score low in international exposure, as they have few foreign professors or students there, otherwise it's comparable to MIT and caltech for undergraduate studies

 

[AugenBlick]

The magic ticket to the future would be to develop a hybrid engine....that does not require external propulsion but can produce its own thrust from the getgo....did anyone think of retractable turbine blades? It could start of a Ramjet(like the Blackbird) and then after crossing Mach 3 or 4 retract or fold its blades to kind of convert to a scramjet....that'd be cool.

The brits have already been working on it for 25 years...

in 2011 and the test lasted far longer than 5s.

India has made a baby step.

Still, congratulations.

Care to post a link?
Not doubting you.. would love to read the test details myself.

 

[Nilgiri]

Yeah I read it in the news report... I am really not sure how much longer we can sustain this because metallurgy has been our weak spot. Not saying it's a lie/deception, just that I am not aware of any metallurgical breakthroughs that might have happened. Especially if this is gonna be reusable.

@amardeep mishra

Do you know if this was the classical "double ramp" config? WHich material is used to make this engine, especially nozzels and combustion chamber?

Fair enough, 5 second test is a very promising starting point. The materials are the same as other regular jet engines...special nickel superalloys for the basic structure:

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19790025038.pdf

http://ijiet.com/wp-content/uploads/2014/10/3.pdf

On top of this there are thermal barrier coating technologies and other means of creating greater thermal resistance....but you have to optimise their use carefully.

They way I see it though we will need a massive advance in the base metallurgy at possibly a nano scale (so we can really help mitigate issues like low cycle creep through controlling the initiation of it). In a way its like making glass so perfect it becomes really tough to break (because there is no single point weakness). This will need massive amounts of RnD though (and plenty of nano foundries and engineering development for all the iterations to check from theory as it develops).

For the time-being the scramjet project by ISRO may be more useful as a stepping stone to be on the forefront of testing new advanced materials and techniques....and push up the burn time as high as it can go in an incremental manner. These will have good flow back on technology for regular jet engines etc.

The magic ticket to the future would be to develop a hybrid engine....that does not require external propulsion but can produce its own thrust from the getgo....did anyone think of retractable turbine blades? It could start of a Ramjet(like the Blackbird) and then after crossing Mach 3 or 4 retract or fold its blades to kind of convert to a scramjet....that'd be cool.

That would be quite complicated to design (high thermal environments generally benefit from as few moving parts as possible).....but it would be an interesting thing to develop once we get more stepping stones to what materials and base techniques are the best hedges for continued development. Its really a top tier thing you are thinking of (which is good!)....but we are basically at the level of figuring out which shape works best for a wheel relatively speaking

 

[bloo]

 

[Glorino]

Very Big Congratulations to ISRO

 

[AugenBlick]

Fair enough, 5 second test is a very promising starting point. The materials are the same as other regular jet engines...special nickel superalloys for the basic structure:

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19790025038.pdf

http://ijiet.com/wp-content/uploads/2014/10/3.pdf

On top of this there are thermal barrier coating technologies and other means of creating greater thermal resistance....but you have to optimise their use carefully.

They way I see it though we will need a massive advance in the base metallurgy at possibly a nano scale (so we can really help mitigate issues like low cycle creep through controlling the initiation of it). In a way its like making glass so perfect it becomes really tough to break (because there is no single point weakness). This will need massive amounts of RnD though (and plenty of nano foundries and engineering development for all the iterations to check from theory as it develops).

For the time-being the scramjet project by ISRO may be more useful as a stepping stone to be on the forefront of testing new advanced materials and techniques....and push up the burn time as high as it can go in an incremental manner. These will have good flow back on technology for regular jet engines etc.

Yeah I guess .. the most important result of this test will be the gathering of important parameters for simulation. I am not a gas dynamics guy (I simulate flows but mostly at Mach 2). My understanding is that there is a considerable change in the fluid laws at hyper sonic speeds... The associated models need to be experimentally verified before they can be used (parameter values et al) . We can "soft" develop the engine and wait for the metallurgy to catch up.

 

[Ankit Kumar 002]

Btw what makes IITs so special in India ?
What do IITs have which other Indian universities lack.. Any1 ?

In India , there are two categories of Universities

1. Original IITs
2. " OTHERS ".

This should answer every thing.

 

[PARIKRAMA]

A Big congratulations to ISRO..

On the thread posting for all posters
I have tried cleaning the thread of troll post and no relevancy to the topic ones.

Pls follow the cardinal rule of " Dont quote any troll post and learn to report and better ignore such flamebaits"

It would be nice if you folks dont fall for the same trap set and destroy this thread also. So utilize this opportunity and learn some more about this topic by keeping the discussion on topic

@waz @WAJsal @mods
Kindly check for any appropriate action deemed fit.

There is another thread running here
https://defence.pk/threads/isro-tes...-could-make-launches-10-times-cheaper.446320/
and here as well
https://defence.pk/threads/isro-suc...uristic-rocket-test-joins-select-club.446319/

and a new one
https://defence.pk/threads/isro-press-release-india-4th-country-to-test-scramjet.446362/

It would be nice if we can collate the data only at one place and combine all things...


Regards,


Edited to add all threads