Author Topic: SSLV Discussion Thread  (Read 62590 times)

Offline sanman

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Re: SSLV Discussion Thread
« Reply #80 on: 03/21/2021 04:57 pm »
Sounds like it was a static fire test in which the malfunction occurred.

Offline K210

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Re: SSLV Discussion Thread
« Reply #81 on: 03/23/2021 02:52 pm »
S85 (First stage motor) static test failed due to design issues

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The static test of first stage solid motor (SS1) of ISRO's Small Satellite Launch Vehicle (SSLV) -- a new-generation compact rocket -- was not successful, according to sources in ISRO. "Oscillation was noticed after 60 seconds into the test and nozzle was blown out near the bucket flange where it's attached with the motor at around 95 seconds", sources in the Bengaluru-headquartered space agency said.

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It was supposed to be tested for a total duration of about 110 seconds, officials said.

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New motor has to be static tested on the ground to prove its performance. If it is successful, one more of the same configuration is tested again for acceptance.

If both are successful, no more ground test is required and third motor of the same configuration will be accepted for flight", an ISRO official said.

On payload capacity of SSLV

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It is a three-stage all solid vehicle with a capability to launch up to 500 kg satellite mass into 500 km low earth orbit (LEO) and 300 kg to Sun Synchronous Orbit (SSO).

Source: https://economictimes.indiatimes.com/news/science/static-test-of-first-stage-solid-motor-of-indias-mini-rocket-sslv-unsuccessful/articleshow/81653164.cms

Offline TheVarun

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Re: SSLV Discussion Thread
« Reply #82 on: 03/23/2021 08:19 pm »
^
Also importantly, the article speaks of a six month time period to test the new motor(s). Which means the SSLV-D1 launch will be delayed well beyond September of this year.  I may have spotted some sloppy editing here. In one paragraph, the Economic Times report says 'in all probability' the SSLV schedule will have to be revised. Meaning there is still a glimmer of hope that they will stick to the April launch date. But later in the article, the ET specifically asks how long it will take to test the static motors, and an ISRO official replies 'about 6 months'.   So there is no question whatsoever of a delay. It will be delayed.
« Last Edit: 03/23/2021 08:26 pm by TheVarun »

Offline sanman

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Re: SSLV Discussion Thread
« Reply #83 on: 03/24/2021 10:19 pm »
Apparently, a local person managed to get some video of the SSLV static fire test on their phone:


Offline vyoma

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Re: SSLV Discussion Thread
« Reply #84 on: 07/10/2023 05:28 am »
https://www.thehindu.com/sci-tech/science/isro-to-transfer-sslv-to-private-sector/article67060814.ece [July 09, 2023]

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The Indian Space Research Organisation (ISRO) will soon transfer its Small Satellite Launch Vehicle (SSLV) to the private sector, after conducting two development flights of the rocket that seeks to provide on-demand services to put satellites weighing up to 500 kg in a low-earth orbit.

The space agency has decided to opt for the bidding route to transfer the mini-rocket to the industry, a senior official said.

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"We will be transferring the SSLV completely to the private sector. Not just the manufacturing, but full transfer," the official said.

Offline Zed_Noir

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Re: SSLV Discussion Thread
« Reply #85 on: 07/10/2023 01:44 pm »
https://www.thehindu.com/sci-tech/science/isro-to-transfer-sslv-to-private-sector/article67060814.ece [July 09, 2023]

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The Indian Space Research Organisation (ISRO) will soon transfer its Small Satellite Launch Vehicle (SSLV) to the private sector, after conducting two development flights of the rocket that seeks to provide on-demand services to put satellites weighing up to 500 kg in a low-earth orbit.

The space agency has decided to opt for the bidding route to transfer the mini-rocket to the industry, a senior official said.

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"We will be transferring the SSLV completely to the private sector. Not just the manufacturing, but full transfer," the official said.
Hope the SSLV transfer to the private sector isn't the ISRO washing it's hands with the launcher due to the relative high cost per kilogram of payload for this launcher. Especially with the quick withdraw of current Smallat launchers to be replaced by medium plus launchers by launch providers.

Offline vyoma

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Re: SSLV Discussion Thread
« Reply #86 on: 07/11/2023 08:12 pm »
https://www.inspace.gov.in/inspace?id=inspace_sslv_transfer_tech_page

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Expression of Interest for Transfer of Technology of SSLV

The Demand for launch of small satellites into Low Earth orbit (LEO) has been phenomenally increased over the years and it is set to grow further. ISRO has developed Small Satellite launch vehicle, suitable for catering to this segment. Taking cognizance of global small satellite launch market, IN-SPACe has taken initiative to transfer the technology of Small Satellite Launch Vehicle (SSLV) to private Indian industries who are keen on assimilating the technology, setting up manufacturing and business operations and competing in the global satellite launch market. In this context, applications are invited from Indian Industries in response to Expression of Interest (EoI) for the Technology Transfer of SSLV. Click here to download the EoI document.

A Pre-EoI conference would be convened for the Indian Industries to get an overall familiarization of the SSLV and its associated systems/sub-systems. This conference will also enable the participating industries to get a good understanding of the work package and the scope of work so as to enable them to understand the requirements of the EoI. The interested industries are requested to register for the pre-EoI conference at the following link.
Register for participating in the pre-EoI conference.

Last Date of registering the willingness to attend the Pre-EoI conference is 22nd July 2023.

A maximum of four representatives from each applicant will be permitted to participate in the pre-EoI conference. Subsequent to successful registration, the provision to post the queries will be enabled at www.inspace.gov.in It is mandatory for the Respondent (lead party of prospective consortium or Single party) from any Indian Industry to participate in Pre-EoI Conference by paying a non-refundable fee of ₹50,000/-.

The fee shall be remitted online through https://bharatkosh.gov.in/ or by Demand Draft (DD) drawn in favour of “IN-SPACe” Payable at Ahmedabad. The applicant may upload the copy of the receipt downloaded from Bharatkosh website after payment or copy of the Demand Draft, through online application form as the case may be. The pre-EOI conference is planned on August 02, 2023 (Tentative) at Bengaluru. Please read the entire EoI document carefully before proceeding with payment and registration for Pre-EoI Conference.

Offline vyoma

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Re: SSLV Discussion Thread
« Reply #87 on: 07/27/2023 10:11 pm »
https://www.reuters.com/world/india/indias-offer-privatise-rocket-has-20-potential-bidders-2023-07-27/ [July 26, 2023]

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Pawan Goenka, chairman of IN-SPACe, said 20 companies had submitted an "expression of interest" (EOI) in the rocket programme.

INSPACe will have a pre-EOI consultation with these 20 applicants within two weeks, Goenka told Reuters.

He did not name the companies.

Offline vyoma

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Re: SSLV Discussion Thread
« Reply #88 on: 08/25/2023 09:01 pm »
https://www.reuters.com/technology/space/lt-hal-vetted-bid-india-rocket-privatisation-source-2023-08-25/ [August 25, 2023]

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BENGALURU, Aug 25 (Reuters) - Larsen & Toubro and Hindustan Aeronautics are among companies vetted to potentially bid in India's efforts to privatise its small satellite launch rocket, a source told Reuters, as the government seeks more investment in the booming space market.

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About 20 companies had submitted an expression of interest in bidding on the privatisation, the first of its kind under a policy drive by Prime Minister Narendra Modi to open launch and other space businesses to investment.

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The next step will be to open the bidding process itself, the person said, who had direct knowledge of the matter but asked not to be named because discussions are not public.

Offline vyoma

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Re: SSLV Discussion Thread
« Reply #89 on: 09/15/2023 06:34 pm »
https://timesofindia.indiatimes.com/india/sslv-tot-by-end-of-sept-pawan-goenka-1st-volume-of-bis-standard-for-space-out/articleshow/103657433.cms [Sep 15, 2023]

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Speaking at the International Space Congress-2023 organised by CII, Goenka said: “This is a first ever example anywhere in the world where a full design and technology of a launch vehicle is being transferred to the private sector. Twenty-three companies had applied after the expression of interest (EoI) was issued. We’ll give it to one company, which will be announced soon. If we give to more firms, nobody will make money.”


Tags: SSLV ISRO 
 

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