Note4Students
From UPSC perspective, the following things are important :
Prelims level: NGLV, PSLV, SSLV, GSLV
Mains level: Not Much
The Indian Space Research Organisation (ISRO) is developing a Next-Gen Launch Vehicle (NGLV), which will one day replace operational systems like the Polar Satellite Launch Vehicle (PSLV).
What is the news?
- PSLV, often dubbed the ‘trusted workhorse’, “will have to retire” one day, said ISRO chairman.
What is NGLV?
- NGLV will feature a simple, robust design that allows bulk manufacturing, modularity in systems, sub-systems and stages and minimal turnaround time.
- Potential uses will be in the areas of launching communication satellites, deep space missions, future human spaceflight and cargo missions.
What all modifications would be required?
- In NGLV, ISRO is understood to be looking at a cost-efficient, three-stage, reusable heavy-lift vehicle with a payload capability of 10 tonnes to Geostationary Transfer Orbit (GTO).
- NGLV will feature semi-cryogenic propulsion for the booster stages which is cheaper and efficient.
- For that, at least 10 tonne capability to GTO is needed.
- Correspondingly, the Low Earth Orbit (LEO) capability will be twice that.
- However, payload capability will be lower when the rocket is reusable.
Back2Basics: Various satellite launch vehicles in India
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