TheEpicSquared

ISRO Discussion Thread

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Thought I'd start an ISRO Discussion thread, 'cause, y'know, why not. Pretty much the same as the SpaceX/Blue Origin/ ULA threads, just for ISRO. 

Also, this, tomorrow. today.

Edited by TheEpicSquared

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This article is a bit... bombastic :)  6-10 tons to LEO does not place this rocket in "Heavy-weight launcher" category. Still - good going India. You deserve it after years of hard work.

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Wait, the mk3?

 

:)

Also, India's doing fantastic in the aerospace field, I can't wait to see what they accomplish in the future.

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Is this the one with the new engine?

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7 hours ago, Scotius said:

This article is a bit... bombastic :)  6-10 tons to LEO does not place this rocket in "Heavy-weight launcher" category. Still - good going India. You deserve it after years of hard work.

The "heavyweight" part is used in that article in relation to the mass of the launch vehicle on the pad, not in relation to its lift capacity to orbit.

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1 hour ago, sevenperforce said:

I was excited for a second because I saw "ISRU".

Yeah, there's definitely a small confusion with the name if you just gloss over it.

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18 hours ago, Scotius said:

This article is a bit... bombastic :)  6-10 tons to LEO does not place this rocket in "Heavy-weight launcher" category. 

That's only for the initial version. The semi-cryogenic core version (ULV or GSLV Mk. 3) should do 15 tons to LEO and 6 tons to GTO.

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20 hours ago, Scotius said:

This article is a bit... bombastic :)  6-10 tons to LEO does not place this rocket in "Heavy-weight launcher" category. Still - good going India. You deserve it after years of hard work.

Yeah, definitely bombastic. :P Oh well, it's an Indian news site, so I guess that's to be expected. 

Also, here's live updates from our favorite space news website, Spaceflightnow! https://spaceflightnow.com/2017/06/05/gslv-mk3-gsat-19-mission-status-center/

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Huh the srbs carry the liquid 2nd stage in between them, not unlike many of my ksp rockets

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Someone needs to donate a go pro for the launch facility, or even a cell phone, so they can record HD video.

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They ignite the core booster after the launch "at exactly 114,9 seconds" :)

4:20 in the video.

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Man that thing was fast off the pad! Like a hound! Looks like they have some growth margin for upper stages and more payload in it.

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10 hours ago, tater said:

Someone needs to donate a go pro for the launch facility, or even a cell phone, so they can record HD video.

-Can afford multi-million currency rocket.

-Can't afford go-pro.

Jokes aside, congrats India!

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On 6/5/2017 at 4:54 PM, tater said:

Someone needs to donate a go pro for the launch facility, or even a cell phone, so they can record HD video.

Congrats India!

Agreed.

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How are they only getting this kind of launcher now? Didn't they send a probe to Mars? 

Oh, wait, they hitchhiked...

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It's not actually that hard to send a small orbiter to Mars. Japan sent one up on a Mu-V, with less than 2 tons to LEO capability.

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20 hours ago, Kryten said:

It's not actually that hard to send a small orbiter to Mars. Japan sent one up on a Mu-V, with less than 2 tons to LEO capability.

The delta-v isn't much of an issue, but navigation is pretty impressive.  I think Mariner and some Soviet missions to Venus happened (or were at least launched) while the Gemini program was still going on, so it isn't exactly a huge technological hurdle.  A number of probes have been lost even before landing, so the trip isn't exactly trivial.

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On 6/8/2017 at 7:40 PM, KAL 9000 said:

How are they only getting this kind of launcher now? Didn't they send a probe to Mars? 

Oh, wait, they hitchhiked...

They didn't - Just sent one fuel-heavy probe on their light launchers ! Ends up in place weighing only half a ton.

 

It's really impressive to see ISRO's development, particularly that they never really received help like China or some other nations. All the rockets are literally home grown !

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That's not really true, there was a lot of tech transfer from france. The liquid engines on PSLV and GSLV are licence-built viking engines.

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On 6/9/2017 at 9:44 PM, Kryten said:

That's not really true, there was a lot of tech transfer from france. The liquid engines on PSLV and GSLV are licence-built viking engines.

Actually, Viking Engines are derived from Vikas Engines, Vikas Engines sent Francs, for New Technological Upgrades, these Engines came to known as Vikings so Upgrded Vikas and Viking are the Same, Only a change is its Origin (Vikas) and Derived (Viking).

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 ISRO did have a hand in the Viking design process, but Viking is itself a modified version of the M-55 engine from the europa-3 project. M-55 was built and tested in the late 60s, years before the agreement between SEP and ISRO.

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I'm not sure if the grainy cameras are silly and outdated, or a testament to an impressive policy of making do with what you've got and not squander money upgrading things that still work perfectly. That footage from the control room looks like it was shot by cameras produced in the seventies, and they may very well roll for several more years because they still do the job they were designed to do.

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