Author Topic: ISRO General News  (Read 232603 times)

Online sanman

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Re: ISRO General News
« Reply #700 on: 12/30/2017 02:34 AM »
Ukraine expands industrial rocket building cooperation with south-eastern Asian countries

http://en.interfax.com.ua/news/economic/473833.html

Quote
State-owned Production Association Pivdenny (Yuzhny) Machine-Building Plant named after Makarov (Pivdenmash) based in Dnipro, one of the leading Ukrainian producers of space rocket equipment, is developing cooperation in rocket production with southeastern Asian countries, including South Korea and India.

A source among leaders of the concern told the Kyiv-based Interfax-Ukraine news agency that today Pivdenmash is fulfilling contracts signed in 2016 on rocket engine with the Korea Aerospace Research Institute, KARI and preparing to expand the partnership.

"Work with KARI is being conducted in two areas the production of turbo pump units and model valves for the RD-8 engine, as well as preparation of spherical tanks with capacity of 130 and 25 liters. In 2017 we signed one more contract for spherical tank production," he said, adding, "The experience of successful cooperation was the reason our South Korean partners wanted to broaden cooperation. Today we are conducting talks about signing another contract for the production of a rocket engine tank, as well as a contract for making elements of a liquid rocket engine for the South Korean rocket engine KSLV-II."

In addition, the source said Pivdenmash is also involved in a rocket project with the Indian organization of space studies ISRO.

"We signed a contract with ISRO for conducting through 2019 fire tests of Indian liquid rocket engines at the Pivdenmash testing grounds. The first stage of the contract has been successfully fulfilled.

The source said expanding cooperation in the area of creating space rockets with southeastern Asian countries is viewed as one of the areas of the Pivdenmash diversification production program, which is being conducted in conditions following the disruption of traditional cooperation with Russia.

Pivdenmash is one of the key enterprises of the space engine industry of Ukraine, known internationally as the producer of rocket engines and satellites used for civilian, scientific and military use. As a result of the disruption of traditional cooperation with Russia due to its annexation of Crimea and invasion of Donbas, for three years production capacity at the enterprise has dropped 50% and is practically at a standstill.

As of today Pivdenmash within the framework of cooperation with the U.S. produces the first stage of a new medium class rocket Antares for delivering equipment to the International Space Station under contract with NASA. Ukraine is currently in talks with the U.S. on organizing cooperation in the sphere of rocket production in a project to create rocket engines to replace the Russian RD-180 for the new generation of U.S. Air Force rocket engines.

Online vineethgk

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Re: ISRO General News
« Reply #701 on: 01/10/2018 12:26 PM »
VSSC Director K. Sivan named new ISRO chairman
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The government on Wednesday appointed renowned scientist K. Sivan as the chairman of Indian Space Research Organisation (ISRO) to replace of A.S. Kiran Kumar.

The Appointments Committee of the Cabinet approved his appointment as secretary, Department of Space and chairman of Space Commission for a tenure of three years, an order issued by the personnel ministry said.

Mr. Sivan, at present Director of Vikram Sarabhai Space Centre, will succeed MR. Kumar, who was appointed on January 12, 2015.

Online sanman

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Re: ISRO General News
« Reply #702 on: 01/10/2018 12:44 PM »

Online vineethgk

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Re: ISRO General News
« Reply #703 on: 01/15/2018 01:18 AM »
"TSTO plans discussed at length, likely to take a decision in coming months" - K Sivan, new ISRO chief
Quote
"We are carrying out more tests of systems and components before the next flight of the Reusable Launch Vehicle (RLV). At the same time, the concept of two-stage-to-orbit (TSTO) for designing new launch vehicles have been discussed at length, and we are likely to take a decision in the months to come," he added.

He must be hinting at either an HLV based on SC400 core (cluster of SCE-200 engines) that was showing up in their recent presentations or a ULV family based on the smaller SC200 core. More likely the former.

On the question of SCE-200 engine development,
Quote
He said work is apace on development of semi-cryogenic rocket engine with tests of sub-systems and the hardware required for this unique concept of powering rockets. "It is difficult to specify a timeline for the semi-cryogenic engine as all sub-systems must be tested extensively before integration," he added.
« Last Edit: 01/15/2018 01:26 AM by vineethgk »

Offline russianhalo117

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Re: ISRO General News
« Reply #704 on: 01/15/2018 04:22 AM »
"TSTO plans discussed at length, likely to take a decision in coming months" - K Sivan, new ISRO chief
Quote
"We are carrying out more tests of systems and components before the next flight of the Reusable Launch Vehicle (RLV). At the same time, the concept of two-stage-to-orbit (TSTO) for designing new launch vehicles have been discussed at length, and we are likely to take a decision in the months to come," he added.

He must be hinting at either an HLV based on SC400 core (cluster of SCE-200 engines) that was showing up in their recent presentations or a ULV family based on the smaller SC200 core. More likely the former.

On the question of SCE-200 engine development,
Quote
He said work is apace on development of semi-cryogenic rocket engine with tests of sub-systems and the hardware required for this unique concept of powering rockets. "It is difficult to specify a timeline for the semi-cryogenic engine as all sub-systems must be tested extensively before integration," he added.

That would be based on either the Ukrainian RD-810M export version or the more powerful RD-815M export version currently in development within the Ukrainian RD-800 LRE Family.
RD-810M shown below (4 engine cluster. Export version is similar) Credit: KB Yuzhnoe.
« Last Edit: 01/15/2018 04:24 AM by russianhalo117 »

Online vineethgk

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Re: ISRO General News
« Reply #705 on: 01/15/2018 06:22 AM »
"TSTO plans discussed at length, likely to take a decision in coming months" - K Sivan, new ISRO chief
Quote
"We are carrying out more tests of systems and components before the next flight of the Reusable Launch Vehicle (RLV). At the same time, the concept of two-stage-to-orbit (TSTO) for designing new launch vehicles have been discussed at length, and we are likely to take a decision in the months to come," he added.

He must be hinting at either an HLV based on SC400 core (cluster of SCE-200 engines) that was showing up in their recent presentations or a ULV family based on the smaller SC200 core. More likely the former.

On the question of SCE-200 engine development,
Quote
He said work is apace on development of semi-cryogenic rocket engine with tests of sub-systems and the hardware required for this unique concept of powering rockets. "It is difficult to specify a timeline for the semi-cryogenic engine as all sub-systems must be tested extensively before integration," he added.

That would be based on either the Ukrainian RD-810M export version or the more powerful RD-815M export version currently in development within the Ukrainian RD-800 LRE Family.
RD-810M shown below (4 engine cluster. Export version is similar) Credit: KB Yuzhnoe.
They have alternated between 4 engine and 5 engine clusters in their presentations with the later ones settling on a first stage having 5 engine cluster and ~400 tonnes of propellant loading. So it isn't known what sort of a cluster they would decide to go with in the end.

But ISRO doesn't have much experience with large engine clusters such as this one (the twin-Vikas cluster in GSLV-III being their first foray on this front other than the relatively small twins in PS4), so yes it is quite likely that they atleast sought Ukrainian expertise on the matter as hinted in Anatoly Zak's article even if they did not buy the designs of such a cluster outright.

Quote
In addition to assisting with the design of the engine, KB Yuzhnoe also advised ISRO on the development of the prospective launch vehicle itself.

Online sanman

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Re: ISRO General News
« Reply #706 on: 01/17/2018 03:35 PM »
"TSTO plans discussed at length, likely to take a decision in coming months" - K Sivan, new ISRO chief
Quote
"We are carrying out more tests of systems and components before the next flight of the Reusable Launch Vehicle (RLV). At the same time, the concept of two-stage-to-orbit (TSTO) for designing new launch vehicles have been discussed at length, and we are likely to take a decision in the months to come," he added.

He must be hinting at either an HLV based on SC400 core (cluster of SCE-200 engines) that was showing up in their recent presentations or a ULV family based on the smaller SC200 core. More likely the former.

On the question of SCE-200 engine development,
Quote
He said work is apace on development of semi-cryogenic rocket engine with tests of sub-systems and the hardware required for this unique concept of powering rockets. "It is difficult to specify a timeline for the semi-cryogenic engine as all sub-systems must be tested extensively before integration," he added.

Hmm - when you say HLV in response to his TSTO comments - are you suggesting that they might develop a reusable HLV?
My understanding was that the original plan was for TSTO to be able to lift 10 tonnes to LEO, via winged flyback booster. What kind of payload range do you think they might be considering for a TSTO HLV?

Using a cluster of SCE-200 for a winged flyback booster is a lot different than a cluster for VTVL. It seems like the original winged TSTO idea would have used the cluster of 4. So does that mean the idea for cluster of 5 is for VTVL, or could that be used for winged TSTO as well?

Gee, it would surprising but quite neat if ISRO were to switch its RLV development over to a VTVL design, since everybody else seems to be going that way. I guess it's early on enough that they can consider doing this?

Online vineethgk

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Re: ISRO General News
« Reply #707 on: Today at 01:44 AM »
"TSTO plans discussed at length, likely to take a decision in coming months" - K Sivan, new ISRO chief
Quote
"We are carrying out more tests of systems and components before the next flight of the Reusable Launch Vehicle (RLV). At the same time, the concept of two-stage-to-orbit (TSTO) for designing new launch vehicles have been discussed at length, and we are likely to take a decision in the months to come," he added.

He must be hinting at either an HLV based on SC400 core (cluster of SCE-200 engines) that was showing up in their recent presentations or a ULV family based on the smaller SC200 core. More likely the former.

On the question of SCE-200 engine development,
Quote
He said work is apace on development of semi-cryogenic rocket engine with tests of sub-systems and the hardware required for this unique concept of powering rockets. "It is difficult to specify a timeline for the semi-cryogenic engine as all sub-systems must be tested extensively before integration," he added.

Hmm - when you say HLV in response to his TSTO comments - are you suggesting that they might develop a reusable HLV?
My understanding was that the original plan was for TSTO to be able to lift 10 tonnes to LEO, via winged flyback booster. What kind of payload range do you think they might be considering for a TSTO HLV?

Using a cluster of SCE-200 for a winged flyback booster is a lot different than a cluster for VTVL. It seems like the original winged TSTO idea would have used the cluster of 4. So does that mean the idea for cluster of 5 is for VTVL, or could that be used for winged TSTO as well?

Gee, it would surprising but quite neat if ISRO were to switch its RLV development over to a VTVL design, since everybody else seems to be going that way. I guess it's early on enough that they can consider doing this?
In his preceding statement he had referred to RLV. So he may well have been referring to RLV-TSTO here rather than the more conventional HLV. Lets wait for further hints in the coming months. As it stands now, with so many LV studies floating around from an Ariane-5 style HLV with solid boosters, an F9 style with no strapons and the RLV thing - all essentially paper rockets at the moment - it is rather difficult to state with any degree of certainty what their future plans are.

Online sanman

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