Project Surya/Next Generation Launch Vehicles (NGLV)

[Aaj Ka Hero]

Comparison, took it from Strategic frontier forum.

 

[Anonymous Bharata]

Comparison, took it from Strategic frontier forum.View attachment 11574

V2 version stage 3 is methalox,but propellant loading is 50tons

V3 & V4 version stage 3 is cryo stage,

 

[Pundit Pikachu]

Comparison, took it from Strategic frontier forum.View attachment 11574

The data here is all messed up & wrong, and frankly very outdated to be honest not to mention no proper sources are mentioned to back up those numbers, for example Maximum payload to LEO of NGLV v4 (baseline NGLV) is 20 tons and not 30, 30 tons is the payload of NGLV-H with solid rocket boosters, also 1094 tons is the weight of NGLV-H and not the baseline NGLV (reason being 1094 tons is the weight of the variant capable of transferring 30 tons to LEO as seen here.

But we know that NGLV-H is the 30 ton capable variant and not the baseline NGLV
(For more source check my previous posts in the thread)

 

[Anonymous Bharata]

The data here is all messed up & wrong, and frankly very outdated to be honest not to mention no proper sources are mentioned to back up those numbers, for example Maximum payload to LEO of NGLV v4 (baseline NGLV) is 20 tons and not 30, 30 tons is the payload of NGLV-H with solid rocket boosters, also 1094 tons is the weight of NGLV-H and not the baseline NGLV (reason being 1094 tons is the weight of the variant capable of transferring 30 tons to LEO as seen here.
View attachment 11577
But we know that NGLV-H is the 30 ton capable variant and not the baseline NGLV
(For more source check my previous posts in the thread)

Actually these payload estimates are conservative figures, actual should be more, ISRO never gives the actual values, they only give conservative numbers

 

[Pundit Pikachu]

Actually these payload estimates are conservative figures, actual should be more, ISRO never gives the actual values, they only give conservative numbers

I am also expecting the payload capacity to increase as ISRO further refines and fine-tunes it's LME 110 engines as so far the numbers being thrown around are purely based on the data from the sub scale LME 20 engine (based on CE 20) ISRO had tested earlier

View: https://x.com/Varun55484761/status/1658417835658600450
As they advance to the full scale engine and fine-tune that I expect the figures to get a lot better.

I am expecting NGLV to reach atleast 22 tons to LEO and 10 tons to GTO
similarly I am expecting NGLV-H to reach 35 tons to LEO and 15 ton to GTO due to both a more efficient LME 110 and our ability to now make better and more powerful SRBs thanks to DRDO's advancements in this field (like composite casings)

 

[Anonymous Bharata]

I am also expecting the payload capacity to increase as ISRO further refines and fine-tunes it's LME 110 engines as so far the numbers being thrown around are purely based on the data from the sub scale LME 20 engine (based on CE 20) ISRO had tested earlier

View: https://x.com/Varun55484761/status/1658417835658600450
As they advance to the full scale engine and fine-tune that I expect the figures to get a lot better.

I am expecting NGLV to reach atleast 22 tons to LEO and 10 tons to GTO
similarly I am expecting NGLV-H to reach 35 tons to LEO and 15 ton to GTO due to both a more efficient LME 110 and our ability to now make better and more powerful SRBs thanks to DRDO's advancements in this field (like composite casings)

They have already completed the PDR of the engine (confirmed by Somnath sir himself in his interview with Gareeb Scientist before CY-3 launch) , so those numbers are not random