Looking at DRDO history I honestly feel it is too optimistic
Are you sure? And you know about DRDO's history?
There has been 3 types of Scramjet engines developed by DRDO so far for HSTDV,
Conditions under it was tested as follows I have excluded some details, It used Kerosene (Aviation grade fuel) for one test as well as one used Hydrogen, it uses a strut injector in tandem with Scramjet Combustor.
1) FLIGHT MACH NO : 6.5
2) ALTITUDE SIMULATED : 35KM
4) BURNER STAGNATION TEMPERATURE : 1500 K
7) TEST DURATION : 25 s
Two overcome some problems they designed after this Ramp-Cavity based Scramjet combustor and it has gone succesful tests as well.
Then they have finished designing Ramp Cavity based Scramjet combustor with Barbotage injection system to clear some more issues.
To conclude,
The experimental data generated on three configurations has provided a
useful insight for the configuration design of full-scale combustor for Hypersonic Technology Demonstrator Vehicle (HSTDV). The wall pressure distributions achieved during the experiment has been used for the validation of CFD codes like CFX & Fluent.
so three type of Sc-Ram combustors has been realised,
1. Strut based.
2. Ramp-Cavity combustor.
3. Barbotage injection of kerosene with hydrogen fuel as pilot in a Ramp-Cavity combustor.
Dear Bull,
Actually after visiting Israel and India I think both of you have so much in common and this partnership will be a conduit for US technology to flow in from the back door. It will really help India in the long run.
Regards
You have visited Israel and India? great! Which places did you see?
Actually, IAI Chief was Invited in India for attending the National conference with International participation on 'High speed trans-atmospheric air and space transportation"
Many Media has reported things wrongly but here are certain aspects I'll like to say,
Barak 2/NG/8 Whatever you might call it is a JV which was not clear due to a IAI bribery scandal a few years back, but now after this years MOD release of the same and press release it is clear. in Addition to the same IAF chipped in for a JV regarding Barak ER a new LRSAM.
Previously we have had option for procuring S300PMU (We evaluiated S300V for sure) but now Barak ER will be replaced with full IPR and as a JV than merely buying S300 series.
The Barak-NG is a SAM being developed by the Indian Navy, DRDO and IAI for the Indian and Israeli Navies. It has a range of approximately 70 Kms, as per MOD report.
The Barak-ER or whatever project name is given above to this new project, is a project to develop a brand new area air defence system.
This missile will have a range of 120 km plus. Some reports state 150 Km.
The IAF has some thirty squadrons of Pechoras or fifty "firing units". Each firing unit comprises of the associated radars and missiles and command and control shelter. These were to be replaced by Akash firing units.
Now the IAF was offered the PAC-3 for ATBM role and was evaluating various other M-SAM options to quickly induct while the Akash got ready. So it decided to split the orders between Akash and the 18 M-SAMs. (which was a very naive and idiotic move), as reported by some press.
Instead of these M-SAMs, now the IAF will be procuring this brand new Area defence system aka LR-SAM (good bye S300) from DRDO, which is a brilliant step.
The IN will be getting the Barak-NG. The IAF the Akash & Barak-ER. For Low Level air defence, it will have Spyders, a few Trishuls plus the new DRDO-MBDA JV to develop a Trishul follow on.
For last ditch defence, it will have IGLA-S to be license produced by the BDL, Hyderabad.
Along with this, theres the corresponding overhaul of the IAF's AD network with dozens of brand new radars.
Trishul - It is ready, seeker multipath reflection issue sorted out long ago - closest in performance to Barak1+ Flycatcher .. a few units to be acquired by IAF, Navy has gotten away with it long ago due to its size and requireed modification needed to fit in external ships.
Akash- penultimate user trials this year w/AF (already 56 succesful user trials has been done) - some 32 firing units worth to be ordered---->32 firing units.
The BarakNG for Navy--->4-6 ships at the very minimum..
The Barak-ER above---> 18 firing units
The Maitri LLQRM to follow on from the Trishul with MBDA---> 8 Squadrons of OSA-AKM to be replaced. (With LPI capable Radar
heh! )
Program Air Defence and Axo Atmospheric Air defence, ATBM project
Spyder---> 15 Units being procured
By the end of these programs India would have a massive state of the art GBAD system, not to mention the spin off technologies from Active phased array radars of various types, to a plethora of missiles and C3I gear.
Good Show!
But the hypocricy of the money involved is startling including home participation compared to 40 crores for new 1500 hp engine developement for Arjun which was so less, that some private partners jumped out. The actual amount of money involved and Indian participation can only be known after next MOD release but a good over 50% of ER will be direct inputs and long r&d done by DRDO.
Now lets move to some good news,
http://www.domain-b.com/aero/july/2007/20070711_hypersonic.htm
Israel and India working on hypersonic technology demonstrator vehicle
11 July 2007
The President of India, Dr APJ Abdul Kalam (left), and IAI's President & CEO, Itzhak Nissan (right), at the conference
Hyderabad: The Israel Aerospace Industries (IAI) and India's Defence Research and Development Organisation are working together on a hypersonic technology demonstrator vehicle (HSTDV). The work is moving apace with the intention of conducting a test flight sometime in 2008.
DRDO is developing the HSTDV to demonstrate a kerosene-fuelled scramjet engine capable of powering air-breathing vehicles to a speed of Mach 6.5-7. It is the stated aim of the project to reduce the cost of putting payloads into orbit by a factor of 100, i.e. to $200/kg ($90/lb). Some of the wind tunnel testing for the project is being performed by the IAI.
India is already conducting extensive research on special materials for thermal protection of the HSTDV, including carbon-carbon composites, nickel-based superalloys, niobium alloys and high thermal conducting copper alloy.
Indo-Israeli RAM/SCRAMJET cooperation
Meanwhile, at a prestigious scientific conference dealing with "High speed trans-atmospheric air and space transportation" conducted in the Indian city of Hyderabad from June 29-30 and inaugurated by the Indian president, and distinguished aerospace scientist Dr APJ Abdul Kalam, some hints were dropped about the Indo-Israeli cooperation in this area.
The Israel Aerospace Industries (IAI)'s president & CEO, Itzhak Nissan, was invited as a guest of honor at the event in deference to his personal activities in India, where he leads a number of advanced technological projects.
Speaking on the occasion, Dr Kalam mentioned that Ram/Scramjet engine technology had already been designed and tested by both Russia and the US since the 1960s and most recently by the US through the Flight Technology Demonstrator, X-43. The president also mentioned that India too had "
designed and tested scramjet engines, both kerosene fueled and hydrogen fueled, on ground test facilities.
In his speech, the President of India, Dr APJ Abdul Kalam, praised the growing cooperation between India and Israel at large and the cooperation with IAI in particular.
In his lecture, IAI's president & CEO, Itzhak Nissan, said "IAI, the leading aerospace industry in Israel, is partner for a wide range of commercial and military projects in India. In these projects, we manage to express the capabilities that are mutual to both countries. We are proud to be partners with the superb capabilities demonstrated by the Indian development and manufacturing teams working on some of the most advanced projects in the world."
Mr. Nissan added that: "IAI expresses profound appreciation for the high level of scientific level and motivation that can be found at India's research institutions and aerospace industry."
During the conference, VK Saraswat, the chief controller (R&D), DRDO and chairman of the Aeronautical Society of India, made a presentation on the commercial Hyper Sonic Technology Demonstrator Vehicle. The ground test for HTDV scramjet propulsion system using kerosene as fuel has been conducted
by DRDO scientists at a high speed material testing laboratory abroad and the results have been encouraging, he told reporters at the event.
This would be a reference to the wind tunnel and other experiments being carried out by the IAI.
Though the above news headline is misleading, The HSTDV vehicle is not any JV but some labs in Israel might be used for some testing purpose, just as we used Italy's Space lab to test the thermal stress of the special plates for the SRE Capsule.
The last line clarifies it, the reality is Testing of Scramjet is done inhome so far (cannot disclose anything more than that) but with icnrease in mach number and its validation by CFD and CFX fluencies , need of better testing facility may force scientist to test the engine in some other wind tunnels abroad.
The more variety of wind tunnel you test in, the better CFD data you get to make better flight control laws and others. LCA was tested in many wind tunnels inhome and abroad before starting to develope the CLAW's.
From a HSTDV paper,
Ground tests and classical methods alone cannot give data with sufficient
accuracy for design of hypersonic systems. Due to the closely integrated nature,
component level testing will not be able to simulate accurately the complex flow
field. It is difficult to simulate Reynolds number, boundary layer transition in
ground test facilities. Also, the quality of air is difficult to simulate in the test
facilities. Therefore there is a need to estimate the performance in the flight
based on the results of ground tests. This can be accomplished only through the
use of mathematical modeling of the flow, which is to be solved to first reproduce
the result of the ground test and then used for predicting the flight conditions.
The primary unknown on a physical plane consists of modeling turbulence and its
interaction with chemistry. The issues on the numerical front consist of evolving
algorithms to solve the N S equations or their variants such that sharp gradient
regions near the shocks are captured with numerical diffusion or overshoot. The
prediction of wall heat transfer rate is another task to be handled both on the
modeling plane and numerical experiments. One of the advantages of the
mathematical model is that once it stands validated it can be used to conduct
several numerical experiments on exotic ideas like with respect to enhanced
mixing components with much less expense as compared to experiments. The
experimental effort is not eliminated but reduced and better focused. This is in
fact the current day approach to the solution to the problems of high-speed flight.
This is fructifies is going to be my Dream thing, a 150 seater passenger ac, We have huge domestic market to cater for the same, and ofcourse markets in the neighbours.
http://www.siasat.com/english/index...k=view&id=190950&Itemid=79&cattitle=Hyderabad
'Speed up work on passenger aircraft
Hyderabad, June 30: President A.P.J Abdul Kalam on Friday called for accelerating the aeronautical communitys plan to build a 150-seater civilian aircraft in a public-private partnership mode in view of the growing air traffic in the country.
Inaugurating a two-day international conference on High speed transatmospheric air & space transportation organised by the Aeronautical and Astronautical Societies of India, he said the aeronautical community was ready with a roadmap for the aircraft. He said the R&D and infrastructure build-up for the same has to start right away.
He said that in the next two decades, he visualised the integration of multiple technologies of supersonic aircraft, missiles and spacecraft to transform into an unmanned supersonic long-range aircraft.
Scientific Advisor to Defence Minister, M. Natarajan, said the DRDO was investing heavily to the tune of Rs.30,000 crores in the 11th and 12th Five Year Plans for developing new generation tactical and strategic missiles as also aerospace products.
Dr. Kalam also called for global cooperation to develop affordable reusable space launch vehicles with very high payload efficiencies for launching multi-purpose missions, including space solar power stations.
He said the real value of future societal space missions, like energy from space and seawater desalination using space solar power could taken place only when mankind builds fully reusable space transportation systems with very high payload.
Pointing out that space development was constrained by the large costs of access to space, he said the payload fraction of current generation expendable launch vehicles does not exceed one per cent to two per cent of the launch weight.
Dr .Kalam said that while he visualised, in another 50 to 75 years, an industrial complex on the moon and a human habitat at Mars emerging, one of the major driving factors would be the low cost access to space. He said there was definitely a need for all the countries to work together to develop reusable launch vehicles which could bring down the cost of the launch from the present US $ 20,000 per kg to US $ 200 per kg.
Atomic Energy Chairman Anil Kakodkar said that expertise was available at Indira Gandhi Centre for Atomic Research at Kalpakkam in fabricating high-temperature material and thermal design and offered the same for aerospace applications.
President and CEO, Israel Aerospace Industry (IAI) Limited, Itzhak Nissan, said IAI was involved in major Indian defence programmes.V. K. Saraswat, Chief Controller (R&D), DRDO and Chairman of the Aeronautical Society of India, city chapter, welcomed the gathering.
30,000 crores in the 11 th (2007-12) and 12 th (2012-2017) plan periods to develop new gen missiles (tactical and strategic) and aerospace items.
30,000 crores at present exchange rates is equal to 7412.88 Million $. Ie approx 7.4 Billion $.
I hope the budget involved is true, We lack nothing other than proper management and budget. the passenger ac is being talked about for long but with no budget havent fructified.
NAL after success of Saras will mote into a RTA - Regional transport Jet of 70 seaters and a 150 seater jet.
NAL meanwhile after success of HANSA is working with Mahindra (who are funding it) for a 5 seater patrol aircraft.