Author Topic: Next Generation Launch Vehicle (NGLV)  (Read 5276 times)

Offline A.K.

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Next Generation Launch Vehicle (NGLV)
« on: 10/16/2022 04:30 pm »
https://twitter.com/ANI/status/1580699906456530945?t=DJlJOzVvkf7OS-hAidnVWg&s=19
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Kerala | PSLV not immortal. Don't have a clear time in mind but it will not stay for another 100 years. PSLV was developed in the 1980s, hence does not serve the needs of 2020s. Evolution has to happen: ISRO Chairman, S Somnath

Offline A.K.

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Re: Next Generation Launch Vehicle (NGLV)
« Reply #1 on: 10/16/2022 04:35 pm »
https://www.newindianexpress.com/states/kerala/2022/oct/13/isro-developing-new-rocket-to-replace-pslv-2507752.html
ISRO developing new rocket to replace PSLV
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THIRUVANANTHAPURAM: The Indian Space Research Organisation (ISRO) is developing a rocket named Next Generation Launch Vehicle (NGLV) to replace its ageing workhorse the Polar Satellite Launch Vehicle (PSLV) that was developed in the 1980s.
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This was announced by ISRO chairman S Somanath at a press conference on the sidelines of the 'Engineers Conclave 2022' at the Liquid Propulsion Systems Centre (LPSC) at Valiyamala here on Thursday.
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"PSLV was developed in the 1980s and it does not serve the needs of the 2020s. There needs to be an evolution," Somanath said. While refusing to give an exact time frame for retiring PSLV, he said that ISRO will stop using the rocket after completing the remaining launches approved by the government.
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Asked specifically about propulsion technology to be used in the NGLV, Somanath said it will use 'semi-cryogenic' technology which is both efficient and cost-effective. He hinted that the new rocket could also be 'reusable'. "A reusable rocket will have a smaller payload than an expendable one. If it is reusable, the payload will be around five tonnes and if it's expendable, it will go up 10 tonnes," he added. Somanath said the payload parameters were arrived at after analysing the current market requirements.
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Somanath said the participation of the industry was essential right from the beginning of the new rocket's development. This would ensure that capability is created outside ISRO to build, operate and launch it on a commercial basis. "It is possible for the industry to support and create this rocket (NGLV) as a national asset that can be operated for a sufficient period of time," he said earlier while speaking at the conclave.
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Somanath said ISRO is also engaged in discussions with the Union Agriculture Department to develop a 'Bharat Krishi satellite' to study the growth pattern of crops, identify irrigation deficiencies and provide information that will help in pest-control and verification of farm insurance claims besides many other applications.
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"We will give support to the Agriculture department. The satellites will be owned and operated by them. A minimum of two satellites will be needed to ensure proper re-visit capability," he added.
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The ISRO chairman said the space agency is exploring the possibility of increasing civilian use of the country's indigenous satellite navigation system NaVIC. However, he admitted that the efforts have not given any tangible outcome.
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"It is penetrating slowly into the civilian sector. But the primary goal of NaVIC continues to remain as a service to the strategic sectors," he reminded.
« Last Edit: 10/16/2022 04:35 pm by A.K. »

Offline A.K.

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Re: Next Generation Launch Vehicle (NGLV)
« Reply #2 on: 10/17/2022 05:04 pm »
10 tonnes to GTO (Ariane 5ECA class)
It looks like NGLV is nothing but renamed ULV rocket family.

Offline sanman

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Re: Next Generation Launch Vehicle (NGLV)
« Reply #3 on: 10/17/2022 10:26 pm »
From ISRO Chairman S Somanath's talk at the Indian National Academy of Engineering:



(See 2:27:38 in the video)

Offline sanman

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Re: Next Generation Launch Vehicle (NGLV)
« Reply #4 on: 10/18/2022 12:22 am »

https://www.wionews.com/world/isro-chairman-shares-insights-into-key-aspects-of-indias-next-gen-rocket-526139

https://www.thehindu.com/sci-tech/science/isros-next-gen-launch-vehicle-may-assume-pslvs-role/article66005152.ece

https://eurasiantimes.com/barging-into-spacex-zone-isro-is-developing-a-reusable-next-gen/

https://www.newindianexpress.com/states/kerala/2022/oct/13/isro-developing-new-rocket-to-replace-pslv-2507752.html

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"A reusable rocket will have a smaller payload than an expendable one. If it is reusable, the payload will be around five tonnes and if it's expendable, it will go up 10 tonnes," he added. Somanath said the payload parameters were arrived at after analysing the current market requirements.

As with Falcon-9, it seems like only the booster of NGLV would be reusable.
« Last Edit: 10/18/2022 12:30 am by sanman »

Offline sanman

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Re: Next Generation Launch Vehicle (NGLV)
« Reply #5 on: 10/18/2022 08:47 pm »
This is a video showing an early test of the LM20 engine (LM stands for Liquid Methane, and the 20 stands for 20 tonnes)



The placard on the engine reads:

ISRO PROPULSION COMPLEX
THRUST CHAMBER TEST FACILITY
TEST ID: LM20HT02
03-02-2021


Offline sanman

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Re: Next Generation Launch Vehicle (NGLV)
« Reply #6 on: 10/31/2022 08:17 am »
https://economictimes.indiatimes.com/news/science/isro-eyes-next-generation-launch-vehicle-for-heavier-payloads/articleshow/95182261.cms

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ISRO Eyes Next Generation Launch Vehicle for Heavier Payloads

As India eyes setting up its own space station by 2035, the Indian Space Research Organisation (ISRO) has proposed to the industry to collaborate with it in developing a reusable rocket capable of carrying heavier payloads into orbit. Dubbed as the Next-Generation Launch Vehicle (NGLV), ISRO Chairman S Somanath said the space agency was working on the design of the rocket and would like the industry to collaborate with it in the development.

"The intent is to bring industry along in the development process. All the money need not be invested by us. We want the industry to invest to create this rocket for all of us," Somanath told PTI here.

He said the rocket is planned to carry a 10 tonne payload in the Geostationary Transfer Orbit (GTO) or 20 tonnes to the low earth orbit.

Another ISRO official said the new rocket would be helpful as India plans to have its own space station by 2035 and was also eyeing deep space missions, human space flights, cargo missions and putting multiple communication satellites into orbit at the same time.

The NGLV is envisioned as a simple, robust machine designed for bulk manufacturing that will make space transportation more cost effective.

Somanath said the Polar Satellite Launch Vehicle (PSLV), ISRO's warhorse rocket, was based on the technology developed in the 1980's and cannot be used to launch rockets in the future.

ISRO plans to have the design of the NGLV ready within a year and offer it to the industry for production, with the first launch tentatively scheduled for 2030.
...

Offline Steven Pietrobon

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Re: Next Generation Launch Vehicle (NGLV)
« Reply #7 on: 11/02/2022 06:10 am »
Nine SCE-200 engines on the first stage and one SCE-200 on the second stage should be able to get 20 t to LEO with first stage reuse. Not sure about 10 t to GTO. First stage thrust would be 18.27 MN.
« Last Edit: 11/02/2022 06:11 am by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline vyoma

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Re: Next Generation Launch Vehicle (NGLV)
« Reply #8 on: 06/08/2023 05:27 pm »
https://economictimes.indiatimes.com/news/science/announcement-coming-soon-on-hava-rocket-testing-facility-isro-chief/articleshow/100854911.cms [Jun 08, 2023]

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Regarding new generation launch vehicles (NGLV), Somanath said ISRO is building an architectural rocket, and a big team from various centres is working on it. "The team has come out with a preliminary report on how this rocket should look like, what are the technology inputs, what are the approaches that we have to do, where we should do, what manufacturing -- everything is addressed. We want it to be partially reusable. We should use the new generation propulsion and engine."

Offline vyoma

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Re: Next Generation Launch Vehicle (NGLV)
« Reply #9 on: 06/08/2023 05:29 pm »
https://www.thehindu.com/news/national/karnataka/isro-readies-plan-for-next-generation-launch-vehicle/article66946403.ece [June 08, 2023]

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The architecture for Indian Space Research Organisation’s (ISRO), ambitious Next Generation Launch Vehicle (NGLV) has been finalised, ISRO chairman S. Somnath has said.

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“A big team is working on it at various centres and they came out with a report on how this rocket should look, what are the technology inputs, what are the approaches we should do, where we should do, manufacturing everything is being addressed,” Mr. Somnath said.

He added that ISRO wanted the NGLV to be partially reusable and that the boosters should be reusable.

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“We should use new generation propulsion, we must have cryogenic propulsion also in case we need to improve payload and it must be manufacturable using the materials currently available in India. The cost should be brought down, the manufacturing cycle and industry should be looked at. After this process we are going to consult with every industry before we take up the project,” the ISRO chief added.

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“If the industry is willing, they will be onboarded to be a shareholder and partner in this process where they get to be a responsible partner in designing and manufacturing. We will create a business model for funding,” he added.

Mr. Somnath said that the NGLV would be offered as a commercial launcher vehicle, for both governmental, and private use.

“This is the plan; it may take maybe five to 10 years given that new rocket development is a long-drawn process. But one big advantage is we have the facilities necessary to develop it today right now. This means development can happen without much investment,” Mr. Somnath said.

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