LVM3/GSLV Mark III News, Discussions, Updates and Reports

[Vamsi]

4 tonnes...How?

LM-3B/E has same 5.5T to GTO & 4T to LTT, so based on that we can guess it

 

[Vamsi]

4 tonnes...How?

These are estimates below

LVM3-SC specs below

Payload to 170 × 36000 GTO

Payload to 500 × 400000 Lunar Transfer Orbit

 

[Vamsi]

@Indx TechStyle @Swesh current LVM3 itself can put Vikram Lander + Pragyan Rover (together 1500KG) directly into Lunar Transfer Orbit

 

[Indx TechStyle]

LM-3B/E has same 5.5T to GTO & 4T to LTT, so based on that we can guess it

Don't compare that yo. LM-3B/E has a 4th stage to save orbital maneuvers by satellite.

 

[Swesh]

@Indx TechStyle @Swesh current LVM3 itself can put Vikram Lander + Pragyan Rover (together 1500KG) directly into Lunar Transfer Orbit

View attachment 181390

Are you vyomegami on reddit?

 

[Indx TechStyle]

From Sidhharth MP
#ISRO official told me: Various efforts on to increase #LVM3 payload

CE20 thrust increased from ~19 tons to 21.8 tons by using 32tons of fuel, instead of 28t & increasing fuel flow rate

SC120 devpmnt underway

Currently, LVM3 can lift 4.5t to GTO & 10.65t to LEO @ISRO #india

 

[Vamsi]

Don't compare that yo. LM-3B/E has a 4th stage to save orbital maneuvers by satellite.

Still as per below estimates LVM3-SC can inject atleast 3.5 tons directly in Lunar Transfer Orbit
These are estimates below

LVM3-SC specs below

View attachment 181386

Payload to 170 × 36000 GTO

View attachment 181387

Payload to 500 × 400000 Lunar Transfer Orbit

View attachment 181388

 

[Indx TechStyle]

Still as per below estimates LVM3-SC can inject atleast 3.5 tons directly in Lunar Transfer Orbit
These are estimates below

LVM3-SC specs below

View attachment 181386

Payload to 170 × 36000 GTO

View attachment 181387

Payload to 500 × 400000 Lunar Transfer Orbit

View attachment 181388

Can you calculate same for L110 based LVM3 with C32 stage?

 

[Vamsi]

Can you calculate same for L110 based LVM3 with C32 stage?

LVM3 with C-32 can directly inject CY-3 into Lunar Transfer Trajectory

 

[Swesh]

Yes, it's me, how do you know ??

Time of posting on reddit and here almost instant

 

[Vamsi]

Time of posting on reddit and here almost instant

whats your id in reddit

 

[Swesh]

whats your id in reddit

First post an exclusive photo i sent you on reddit

 

[Vamsi]

First post an exclusive photo i sent you on reddit

Falcon-9 fairing catching

 

[Vamsi]

@Swesh

 

[Swesh]

@Swesh

View attachment 181409

Thanks for confirmation this payload faring recovery concept by isro to reuse it

 

[Indx TechStyle]

@Vamsi So what are the chances of throwing PRATUSH telescope to moon along with Chandryaan-3 since LVM3 would have a good room after loading a 2.8 tonnes spacecraft?

 

[Vamsi]

@Vamsi So what are the chances of throwing PRATUSH telescope to moon along with Chandryaan-3 since LVM3 would have a good room after loading a 2.8 tonnes spacecraft?

Actual plan was to host Pratush Tech Demo payload on Propulsion Module, but it was cancelled later. Current status is unknown.

 

[Vamsi]

@Indx TechStyle @Swesh as per the reddit user u/Galacticnemesis 1st SCE-200's Pressure Head Test Article (PHTA) is actually ready now, it's waiting for Test stand to be ready, which will take atleast 3-4 months, So we can expect 1st static test in 2nd half of 2023

It will be followed by Integrated Engine IE-1,which will be followed by IE-2 ,which be followed by IE-3 ,which will be integrated to SC120 & then tested, IE-3 will be followed by IE-4, which will be used in the 1st launch of LVM3-SC...From this I expect 1st launch will be no later than 2026.

Also note that Semi-cryo test facility can only test upto SC-160 stage, it cannot be used for Clustered SCE-200 & SC-400, for that an entire new test facility is required.

It seems our folks at ISRO never learns from the past .....they are repeating the same mistake that happened during Vikas engine development. After this I won't expect NGLV to be ready untill late 2030s if not early 2040s

 

[Indx TechStyle]

From this I expect 1st launch will be no later than 2026.

No earlier than 2025 also.

 

[Vamsi]

No earlier than 2025 also.

My mistake, LVM3-SC would be no earlier than 2026