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

4 tonnes...How?

ISRO tried to engineer and master this project (called PAM-G) on GSLV, back in 2013 and even built a powerful upper stage for direct MEO/GTO injections. But then, they went back on fixing GSLV and this upper stage never flew. There has been no news on any such project in ISRO since 2016.

No, I don't think we have a powerful upper stage for direct TLI injection. Only US, Russia and China can do that at present. We will have to use continuous orbital maneuvers and off course wait for months for success of every mission.

From where did you pick that EPO of Cdy-3 would be 1.86 lakh kilometers? It looks like it will take a new upper stage engine for India to gain direct TLI and TMI capabilities. There was no new space tug project either since cancellation of PAM-G at last stages either.☹☹

4.3 tonnes to GTO is the actual capacity of LVM3 from start per VSSC rating (may be rated down for factor of safety). Anyway, you can't carry out structural changes in a rocket just by "modifications", you will need to replace a large portion of it. Are they needed? I don't think so...

That has no use in it since OneWeb mission was a SSO one. An LVM3 being launched today had been given for production 6 months ago. So obviously they didn't make any changes in drawings either.

Successful CE20 uprated Engine Hot Test with 21.8 T vacuum thrust Nov 09, 2022 Thrust Chamber Pressure Curve Engine Hot Test

Hold your horses bro. ISRO hasn't came up with manned spaceflight, a space station, Rendezvous docking or soft landing on moon yet. Though, manned moon spacecraft would weigh well above 20 tonnes.

That will be SHLV, not included in NGLV portfolio yet. It might have 4-8 clustered SCE-200 at core (or a bigger semi cryo engine) and Vikas X engine boosters in place of S200 (booster being same as size of LVM3) and a far more powerful cryogenic upper stage. 60-130 tonnes in LEO. SHLV will...

6 tonnes to GTO. 13 to 16 tonnes to LEO. It's an improvement over existing LVM3 (GSLV Mk III) just like PSLV-XL was a great improvement over PSLV. NGLV is a series of rockets with modular design (parts are interchangeable between other rockets in series). They will be based upon semi-cryogenic...

Burn time won't change? I'm assuming that higher lift off mass will require higher initial boost. Or LVM3SC will improve thrust to weight ratio itself? 2030 That's NGLV family (earlier known as ULV) for 2030s. We are talking about LVM3-SC which is basically a GSLV Mk III with SCE-200 instead...

So, for LVM3-SC variant, I case anyone knows. @Vamsi @Swesh Main stage: L110 (2 x Vikas engines) will be replaced by SC120 (1 x SCE-200). Upper stage: C25 (1 x CE-20) replaced by C32 (1 x CE-20) with more burn time and a larger cryogenic tank for propellant. Booster Stage: 2 x S200 boosters...

Human-rated launch vehicle 'practically' ready: HSFC director at IISc space conference

UAE has been investing in space technology for a while. May be a collab meet.

Orchestrating multiple launches of small payload is costlier than single launch of heavy lift.

For all members visiting ways to calculate launch capacities. Vikas engine ~ 850 kN thrust SCE-200 ~ 2000 kN thrust (1820 kN at sea level) PSLV-XL uses 6 x liquid fuels boosters with combined thrust of 703.5 kN to liftoff. The core has a massive S139 solid rocket motor with an 4800 kN...

May be but engine has already been under development for so many years, delays on delays and they finally have reached the stage of qualification tests. Though, another 1~2 years delay will not surprising.

Yes, it will replace Vikas in LVM3 rocket at least. L110 (main) stage of LVM3 has two Vikas engines. It will be replaced by SC120 with one SCE-200 which alone will produce more thrust than two Vikas. They also wish to retire to GSLV and PSLV and will make a single 4-5 tonne Semi cryo based LEO...

Yes, that's why I said HT is mistaken. Hot tests will finish at sometime first quarter of 2023 so that launch can take place at end of 2023 or might even be more delayed to 2024 as engine integration in LVM3 might take time. Gaganyaan will use Vikas engines and not SCE-200.