Why this matters now
LVM3 is tested for: renamed from GSLV Mk III to LVM3 (2022) reflecting it’s not strictly geosynchronous-restricted; height 43.5 m mass 640 t; 3 stages 2× S200 solid boosters (each 207 t propellant) + L110 twin Vikas liquid core (110 t LOX-UDMH) + C25 cryogenic upper with indigenous CE-20 engine (28 t LOX-LH2 thrust 200 kN); payload 4000 kg GTO / 8000 kg LEO; first developmental flight LVM3-X CARE 18 Dec 2014 (crew capsule re-entry test); LVM3-D1 5 Jun 2017 GSAT-19; LVM3-D2 14 Nov 2018 GSAT-29; LVM3-M1 22 Jul 2019 Chandrayaan-2; LVM3-M2 23 Oct 2022 + LVM3-M3 26 Mar 2023 launched 36 OneWeb satellites each (first ISRO commercial heavy launches, NSIL contract); LVM3-M4 14 Jul 2023 Chandrayaan-3; LVM3-M5 + onwards Gaganyaan; HRLV (Human Rated LVM3) upgrades: 5x redundant avionics + crew escape system + structural beef-up.
Three stages
| Stage | Propellant | Mass |
|---|---|---|
| S200 (2 boosters) | HTPB solid | 207 t each — largest solid motors built in India |
| L110 core | UDMH + N2O4 liquid (twin Vikas engines) | 110 t |
| C25 upper | LOX-LH2 cryogenic (CE-20 indigenous) | 28 t |
CE-20 — ISRO’s 200 kN thrust cryogenic engine indigenously developed (vs imported Russian engines for early GSLV Mk II). First flight 2017. Mastery of cryogenic tech was held back by 1992 US-Russia denial regime; ISRO developed it indigenously.
Notable flights
| Mission | Date | Payload |
|---|---|---|
| LVM3-X CARE | 18 Dec 2014 | Crew capsule re-entry test (suborbital). |
| LVM3-D1 | 5 Jun 2017 | GSAT-19 (3136 kg). |
| LVM3-D2 | 14 Nov 2018 | GSAT-29 (3423 kg). |
| LVM3-M1 | 22 Jul 2019 | Chandrayaan-2 (3850 kg). |
| LVM3-M2 | 23 Oct 2022 | 36 OneWeb satellites (1st OneWeb). |
| LVM3-M3 | 26 Mar 2023 | 36 OneWeb satellites (2nd OneWeb). |
| LVM3-M4 | 14 Jul 2023 | Chandrayaan-3 (3900 kg). |
Gaganyaan + future
- HRLV (Human Rated LVM3) — selected for Gaganyaan crewed missions; 5x avionics redundancy; Crew Escape System; structural margins.
- SC120 semi-cryogenic stage — in development; will replace L110, boosting GTO to ~5.5 t.
- NGLV Next-Generation Launch Vehicle — clean-sheet design beyond LVM3, ~10 t GTO target, reusable booster, ~2030 first flight.
UPSC angle
Know LVM3 (Launch Vehicle Mark 3) formerly GSLV Mk III — India’s heaviest operational launcher; RENAMED FROM GSLV Mk III TO LVM3 IN 2022 reflecting not strictly geosynchronous-restricted; height 43.5 m mass 640 t; 3 STAGES 2x S200 solid boosters (207 t each LARGEST INDIAN SOLID MOTORS) + L110 twin VIKAS liquid core (110 t LOX-UDMH actually UDMH-N2O4) + C25 cryogenic upper INDIGENOUS CE-20 engine (28 t LOX-LH2 thrust 200 kN); payload 4000 kg GTO / 8000 kg LEO; first developmental flight LVM3-X CARE 18 DEC 2014 crew capsule re-entry test suborbital; LVM3-D1 5 Jun 2017 GSAT-19; LVM3-D2 14 Nov 2018 GSAT-29; LVM3-M1 22 JUL 2019 CHANDRAYAAN-2; LVM3-M2 23 OCT 2022 + LVM3-M3 26 MAR 2023 LAUNCHED 36 ONEWEB SATELLITES EACH first ISRO commercial heavy launches NSIL contract; LVM3-M4 14 JUL 2023 CHANDRAYAAN-3; CE-20 ISRO 200 kN cryogenic indigenously developed vs imported Russian for GSLV Mk II; cryogenic tech held back by 1992 US-Russia DENIAL REGIME; HRLV Human Rated LVM3 selected for Gaganyaan 5x avionics redundancy + Crew Escape System; SC120 semi-cryogenic stage in development will replace L110 boost GTO to ~5.5 t; NGLV Next-Generation Launch Vehicle ~10 t GTO target REUSABLE booster ~2030 first flight.
Frequently asked questions
What was the GSLV Mk III renamed to?
LVM3 (Launch Vehicle Mark 3) in 2022 — reflecting that it’s not strictly limited to geosynchronous missions.
What can LVM3 lift?
4000 kg to Geosynchronous Transfer Orbit (GTO) + 8000 kg to Low Earth Orbit. India’s heaviest operational launcher.
Why is the CE-20 engine important?
Indigenous 200 kN cryogenic engine. Cryogenic technology was denied to India by US-imposed regime in 1992 (Russia withdrew from tech transfer). ISRO developed CE-20 indigenously, mastering a strategic capability.
What is HRLV?
Human Rated LVM3 — the human-rated variant of LVM3 for Gaganyaan. Upgrades: 5x redundant avionics, Crew Escape System, structural margins, throttleable engines.