ISRO General News and Updates

[Swesh]

Some clearity on information

Isro completes 1st blow down test of Trisonic Wind Tunnel; Hypersonic Vehicle trials | India News - Times of India

India News: BENGALURU: The Indian Space Research Organisation (Isro) completed the first blow down test of the newly installed Trisonic Wind Tunnel at the Vikram .

m.timesofindia.com

The Indian Space Research Organisation (Isro) completed the first blow down test of the newly installed Trisonic Wind Tunnel at the Vikram Sarabhai Space Centre (VSSC), the space agency’s lead rocketbuilding agency, on Thursday.

Trisonic Wind Tunnel is a system to aid aerodynamic design of rockets and re-entry spacecrafts by characterising a scaled model by evaluating
forces, moments, load distribution, unsteady pressures, acoustic levels etc

Arguing that this is a major step towards India’s increasing self-reliance in the aerospace sector, Isro said: “The tunnel has an overall length of about 160m and has a maximum cross section of 5.4m. The tunnel can be used for testing various space vehicles in three flight regimes below the
speed of sound, at the speed of sound and above the speed of sound — hence the name trisonic wind tunnel.”

It added that the tunnel can simulate flight conditions from 0.2 times the speed of sound (68 m/s) to 4 times the speed of sound (1360 m/s).

“The huge structure was built with several hundred tonnes of steel and was implemented through Tata Projects India Ltd in association with Aiolos Engineering Corporation, Canada and fully realised by industries across India, including Walchandnagar Industries, Pune, Acoustic India, Tiruchirappalli, Artson Engineering, Nashik, Summits Hygronics, Coimbatore, Hydrocare Fluid Power Systems, Bengaluru and Siemens Energy, Ahmedabad,” Isro said.

In a tweet unrelated to the wind tunnel, Isro said the space agency along with agencies from the three armed forces, jointly conducted Hypersonic vehicle trials.

“The trials achieved all required parameters and demonstrated Hypersonic vehicle capability,” Isro said, without divulging any more details of the project.

@WarmongerLSK

 

[WarmongerLSK]

@WarmongerLSK

I saw your post, but the PR looks like 2 separate info. So, my question is, were those Hypersonic vehicle trials done in the wind tunnel or was a vehicle flown?

 

[Swesh]

I saw your post, but the PR looks like 2 separate info. So, my question is, were those Hypersonic vehicle trials done in the wind tunnel or was a vehicle flown?

I usually track down source of info and offical report but none available in detail so far but usually isro gives prefrential treatment to TOI so in case of secrecy like this their report matter most

 

[Swesh]

Union Ministry, ISRO develop a project-monitoring mobile application

The physical progress of the projects supported by MoDoNER is monitored in three modes viz mobile apps, satellite images and drone images, according to a statement from the Ministry of Development of North-East Region. Till November 2022, out of 588 identified projects, 562 projects at 1,664...

m.economictimes.com

@Haldilal you might find it interesting

 

[Swesh]

В «Роскосмосе» сообщили о планах поставить Индии 10 ракетных двигателей

Роскосмос изучает возможность поставок в Индию десяти ракетных двигателей РД-191 в течение пяти лет начиная с 2024 года. Об этом заявил заместитель генерального директора по осуществлению ...

www-rbc-ru.translate.goog

Roscosmos announced plans to supply 10 rocket engines to India
Deputy head of Roscosmos spoke about plans to supply 10 RD-191 rocket engines to India


Roscosmos is exploring the possibility of supplying ten RD-191 rocket engines to India over a five-year period starting in 2024. This was stated by Deputy General Director for the implementation of state powers of the state corporation Valery Sherin at an expanded meeting of the Federation Council Committee on Economic Policy, RBC correspondent reports.

“In the period from 2024 to 2029, we are considering the possibility of supplying about ten RD-191 rocket engines manufactured by NPO Energomash,” he said.

The agreement will allow enterprises to be loaded and attract “very significant extra-budgetary sources of funding [for] the development of an already domestic space program,” Sherin added.

The Energomash Scientific and Production Association is the head enterprise of Roskosmos for the development of liquid rocket engines. It was founded in 1929 in Leningrad as a group for the development of rocket engines at the gas dynamic laboratory under the leadership of Valentin Glushko. The enterprise has developed dozens of liquid-propellant rocket engines for military ballistic and space rockets.

The RD-191 engine was developed for a family of Russian launch vehicles in 1999–2011. It is a single-chamber liquid-propellant rocket engine that runs on kerosene and liquid oxygen. Its first flight tests took place in 2014.

The head of NPO Energomash, Igor Arbuzov, told RBC in August 2019 that the company was discussing with Indian representatives the development of cooperation in the field of engine building. At the talks, they discussed, among other things, the transfer of a license for the right to manufacture engines in India, it was about engines in the range from 100 to 400 tons. Arbuzov specified that the negotiations were taking place against the backdrop of India developing launch vehicles for a manned program.

@Vamsi@indx techstyle

 

[Swesh]

@Indx TechStyle @Vamsi @Varoon2

 

[Indx TechStyle]

В «Роскосмосе» сообщили о планах поставить Индии 10 ракетных двигателей

Роскосмос изучает возможность поставок в Индию десяти ракетных двигателей РД-191 в течение пяти лет начиная с 2024 года. Об этом заявил заместитель генерального директора по осуществлению ...

www-rbc-ru.translate.goog

Roscosmos announced plans to supply 10 rocket engines to India
Deputy head of Roscosmos spoke about plans to supply 10 RD-191 rocket engines to India


Roscosmos is exploring the possibility of supplying ten RD-191 rocket engines to India over a five-year period starting in 2024. This was stated by Deputy General Director for the implementation of state powers of the state corporation Valery Sherin at an expanded meeting of the Federation Council Committee on Economic Policy, RBC correspondent reports.

“In the period from 2024 to 2029, we are considering the possibility of supplying about ten RD-191 rocket engines manufactured by NPO Energomash,” he said.

The agreement will allow enterprises to be loaded and attract “very significant extra-budgetary sources of funding [for] the development of an already domestic space program,” Sherin added.

The Energomash Scientific and Production Association is the head enterprise of Roskosmos for the development of liquid rocket engines. It was founded in 1929 in Leningrad as a group for the development of rocket engines at the gas dynamic laboratory under the leadership of Valentin Glushko. The enterprise has developed dozens of liquid-propellant rocket engines for military ballistic and space rockets.

The RD-191 engine was developed for a family of Russian launch vehicles in 1999–2011. It is a single-chamber liquid-propellant rocket engine that runs on kerosene and liquid oxygen. Its first flight tests took place in 2014.

The head of NPO Energomash, Igor Arbuzov, told RBC in August 2019 that the company was discussing with Indian representatives the development of cooperation in the field of engine building. At the talks, they discussed, among other things, the transfer of a license for the right to manufacture engines in India, it was about engines in the range from 100 to 400 tons. Arbuzov specified that the negotiations were taking place against the backdrop of India developing launch vehicles for a manned program.

@Vamsi@indx techstyle

RD-191 is an SCE-200 thrust class engine. What if India acquires it? For testing for new LVM3 variant till SC120 is developed?

 

[Swesh]

RD-191 is an SCE-200 thrust class engine. What if India acquires it? For testing for new LVM3 variant till SC120 is developed?

As a backup plan i guess

 

[Vamsi]

RD-191 is an SCE-200 thrust class engine. What if India acquires it? For testing for new LVM3 variant till SC120 is developed?

As a backup plan i guess

I think LVM3-SC will fly in 2024 itself with this RD-191 engine, & when SCE-200 is ready,then it will replace RD-191

 

[Vamsi]

@Indx TechStyle @Swesh

 

[TopWatcher]

@Indx TechStyle @Swesh
View attachment 185913

I think L&T not able to consume technology. ISRO might help to them.

 

[Indx TechStyle]

I think L&T not able to consume technology. ISRO might help to them.

Consume what?
They need more accurate milling machines. If German Gleason Pfauter machines aren't enough to mill accurately, it's definitely an issue. And no, ISRO isn't a machine manufacturer. They can't help L&T about it, only HMT can.
Then, we know that L&T already uses better equipment than HMT makes.

 

[TopWatcher]

Consume what?
They need more accurate milling machines. If German Gleason Pfauter machines aren't enough to mill accurately, it's definitely an issue. And no, ISRO isn't a machine manufacturer. They can't help L&T about it, only HMT can.
Then, we know that L&T already uses better equipment than HMT makes.

I am saying samething wat u just described. Atleast ISRO can tell about whats wrong.

 

[Indx TechStyle]

I am saying samething wat u just described. Atleast ISRO can tell about whats wrong.

No, as told before:

ISRO isn't a machine manufacturer.

It is a space agency.

Accuracy is an engineering and not a scientific challenge.
Achieving accuracy is about dimensional tolerances, manufacturing, temperature, wearing, machining materials used by machine makers. Difficulty in machining and maintaining mechanical properties becomes a huge problem because you can't do tempering of parts what you normally do to high iron alloy steels (and you will completely loose accuracy achieved during machining even if you are allowed to reheat to achieve desired metallic grain structure since resultant deformation is random & non-uniform).

German and Japanese manufacturers lead world in it, their machines are used in most of world in both civil and nuclear sectors just like Netherlands' ASML controls chip production machines manufacturing for world.

Stretching accuracy beyond existing limits, doing it at industrial scales and sustaining its increased cost (+costly material gets increased rejection rate).
I have used austenitic inconel 625 and 825 in building oil refineries' VGO units where even 1 kg of this raw metal costs ₹3000. Inconel/Monel/Titanium grades used by ISRO in building rocket engines and their built parts are definitely much much costlier than we can imagine. Rejecting them for inaccurate dimensions is costly. And without developing a reliable machining process where rejection rate remains higher, it is not possible to manufacture those for use.

 

[Abdus Salem killed]

No, as told before:

It is a space agency.

Accuracy is an engineering and not a scientific challenge.
Achieving accuracy is about dimensional tolerances, manufacturing, temperature, wearing, machining materials used by machine makers. Difficulty in machining and maintaining mechanical properties becomes a huge problem because you can't do tempering of parts what you normally do to high iron alloy steels (and you will completely loose accuracy achieved during machining even if you are allowed to reheat to achieve desired metallic grain structure since resultant deformation is random & non-uniform).

German and Japanese manufacturers lead world in it, their machines are used in most of world in both civil and nuclear sectors just like Netherlands' ASML controls chip production machines manufacturing for world.

Stretching accuracy beyond existing limits, doing it at industrial scales and sustaining its increased cost (+costly material gets increased rejection rate).
I have used austenitic inconel 625 and 825 in building oil refineries' VGO units where even 1 kg of this raw metal costs ₹3000. Inconel/Monel/Titanium grades used by ISRO in building rocket engines and their built parts are definitely much much costlier than we can imagine. Rejecting them for inaccurate dimensions is costly. And without developing a reliable machining process where rejection rate remains higher, it is not possible to manufacture those for use.

Can sce-200 be used for making hlvs right ?

 

[Varoon2]

As a backup plan i guess

And one hopes only as that. It shouldn't be a dominant or indefinite policy of importing those engines. ISRO has its own programs

 

[Indx TechStyle]

Can sce-200 be used for making hlvs right ?

SCE-200 is being developed only to make HLVs and SHLVs.

 

[karn]

View attachment 185439
View attachment 185440
View attachment 185441

Is this a testbed or an actual LV design ? Cause this is actually a brilliant design. One can totally eliminate the oxidizer tank for the second stage.. the payload gain will be huge. Especially if they replace that sustainer motor with a liquid stage.

 

[Swesh]

Is this a testbed or an actual LV design ? Cause this is actually a brilliant design. One can totally eliminate the oxidizer tank for the second stage.. the payload gain will be huge. Especially if they replace that sustainer motor with a liquid stage.

Right now it's a testbed but it will be part of actual LV design

 

[Vamsi]

@Swesh I think Aerospike engine is the best bet for small sat SSTO, & it is less complex than other options like scramjet propulsion/precooled engine/Liquid Air cycle engine & they are too costly for a small sat SSTO that is proposed under Make-1 for DSA