ISRO Project Surya: Next Generation Launch Vehicle (NGLV)

Top line of the 3rd SS reads 150 Tons LEO in Single Launch / Multiple Launches ( leave aside the multiple launches ) whereas Vision 2040 with the icon of the NGLV reads 70 tons. Why the discrepancy ?
150t is for Single Launch Architecture and for moon base, they are currently pursuing dual launch architecture ( this is confirmed)
Dual launch is cheaper and requires less development time
 
Super Heavy Launch Vehicle plan of ISRO by 2040 (for landing Indian astronauts to the moon)
1728218571476.webp
 
Here's what we have learnt about NGLV and related variants from this recent presentation
Screenshot_20241006-184959.webp
Baseline NGLV
20 ton to LEO
9 ton to GTO

NGLV- H (NGLV with strap on solid boosters)
30 ton to LEO
12 ton to GTO
Screenshot_20241006-184833.webp
(I just wish ISRO use a bigger Solid booster, or increase the number of boosters to 4 and increase the LEO payload capacity to 35 tons, to allow us a comfortable Lunar flyby)


proposed NGLV-SH capable of delivering 70 tons to LEO
Screenshot_20241006-185805.webp

ISRO has also proposed a 150 ton to LEO capable super heavy Launch Vehicle for a future lunar transit capability
Screenshot_20241006-185707.webp

NGLV will be integrated horizontally and use a titable UT during launch (similar to what Space X uses)
Screenshot_20241006-185041.webp
 
Here's what we have learnt about NGLV and related variants from this recent presentation
View attachment 11418
Baseline NGLV
20 ton to LEO
9 ton to GTO

NGLV- H (NGLV with strap on solid boosters)
30 ton to LEO
12 ton to GTO
View attachment 11419
(I just wish ISRO use a bigger Solid booster, or increase the number of boosters to 4 and increase the LEO payload capacity to 35 tons, to allow us a comfortable Lunar flyby)


proposed NGLV-SH capable of delivering 70 tons to LEO
View attachment 11424

ISRO has also proposed a 150 ton to LEO capable super heavy Launch Vehicle for a future lunar transit capability
View attachment 11422

NGLV will be integrated horizontally and use a titable UT during launch (similar to what Space X uses)
View attachment 11425
more number of boosters like 4 means they can't be integrated horizontally and erected. Hence only 2 are possible side by side.
 
Here's what we have learnt about NGLV and related variants from this recent presentation
View attachment 11418
Baseline NGLV
20 ton to LEO
9 ton to GTO

NGLV- H (NGLV with strap on solid boosters)
30 ton to LEO
12 ton to GTO
View attachment 11419
(I just wish ISRO use a bigger Solid booster, or increase the number of boosters to 4 and increase the LEO payload capacity to 35 tons, to allow us a comfortable Lunar flyby)


proposed NGLV-SH capable of delivering 70 tons to LEO
View attachment 11424

ISRO has also proposed a 150 ton to LEO capable super heavy Launch Vehicle for a future lunar transit capability
View attachment 11422

NGLV will be integrated horizontally and use a titable UT during launch (similar to what Space X uses)
View attachment 11425
One more interesting thing about this project is we are getting our 2nd true indigenous liquid engine.

Vikas,CE-7.5 & SCE-200 are derivatives of foreign engines, only CE-20 is indigenous design , now LME-1100 will join the indigenous engine list. With this we will become fully indigenous in spaceflight
 
I hope they go straight for super heavy 150 ton version instead of 70 ton, will multi-fold increase India space lifting capability as well as amount of important equipments we can put in space.

Let's aim for top position, what's with always REASONABLE, ACCORDING TO BUDGET SHIT, just for this once, act wild GOI.
 
I hope they go straight for super heavy 150 ton version instead of 70 ton, will multi-fold increase India space lifting capability as well as amount of important equipments we can put in space.

Let's aim for top position, what's with always REASONABLE, ACCORDING TO BUDGET SHIT, just for this once, act wild GOI.
It's not just budget, its about engine & materials,this is first time for us to design an indigenous 1000KN thrust engine, all earlier engines except CE-20 are of foreign designs. We cannot jump straight to a 3000KN Full flow Staged Combustion engine from a 200KN Gas generator engine design, that too even before mastering the Oxidiser rich staged combustion cycled SCE-200 semicryo engine. If we go that route, we will fall flat just like in Kaveri's case.
 
It's not just budget, its about engine & materials,this is first time for us to design an indigenous 1000KN thrust engine, all earlier engines except CE-20 are of foreign designs. We cannot jump straight to a 3000KN Full flow Staged Combustion engine from a 200KN Gas generator engine design, that too even before mastering the Oxidiser rich staged combustion cycled SCE-200 semicryo engine. If we go that route, we will fall flat just like in Kaveri's case.
So, they are going to convert SCE-200 engine for methalox use right?
 
Intresting thread by Indranil Roy on Why NGLV uses a cluster of 9 engines and went for a 3 stage design instead of the more conventional 2 stage approach


View: https://x.com/Indrani1_Roy/status/1752059713641120186

 
So, they are going to convert SCE-200 engine for methalox use right?
No, 3000KN Methalox engine will be a clean sheet new design

SCE-200 is Oxidiser rich staged combustion
3000KN methalox currently under conceptual study phase will be Full Flow Staged Combustion like SpaceX raptor

& 1100KN thrust LME-1100 currently under development will be a gas generator cycle engine like CE-20
 
Here's what we have learnt about NGLV and related variants from this recent presentation
View attachment 11418
Baseline NGLV
20 ton to LEO
9 ton to GTO

NGLV- H (NGLV with strap on solid boosters)
30 ton to LEO
12 ton to GTO
View attachment 11419
(I just wish ISRO use a bigger Solid booster, or increase the number of boosters to 4 and increase the LEO payload capacity to 35 tons, to allow us a comfortable Lunar flyby)


proposed NGLV-SH capable of delivering 70 tons to LEO
View attachment 11424

ISRO has also proposed a 150 ton to LEO capable super heavy Launch Vehicle for a future lunar transit capability
View attachment 11422

NGLV will be integrated horizontally and use a titable UT during launch (similar to what Space X uses)
View attachment 11425
More details about the 150 ton to LEO capable Super Heavy Rocket's Engine, (from an older presentation) it will be a 3000KN Full Flow Staged Combustion Engine (based on Learnings from the SCE 200)

View: https://x.com/nssdatta/status/1843214736630100403
1728292275173.webp
 
Once upon a time, soviet were building full staged engine with the name of rd-270, which was going to give 670 tons of thrust, much bigger than isro proposed 300 tons engine or even that raptor.
It was way back in 70s though.
rd270dh.jpg
 
SOORYA's first stage LM450 static test will be done at Third Launch Pad itself, not at IPRC, they will initially do RTLS (retvrn to launch site) recoveries
 

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