Published: 21st Oct, 2022
Context
Recently, addressing a three-day Engineers conclave 2022, the ISRO chairman has announced to launch Next-Gen Launch Vehicle (NGLV), which is-going to replace operational systems like the Polar Satellite Launch Vehicle (PSLV).
About
What are launch vehicles?
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Retired Launchers
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- Launchers or Launch Vehicles are used to carry spacecraft to space. India has two operational launchers:
- Polar Satellite Launch Vehicle (PSLV)
- Geosynchronous Satellite Launch Vehicle (GSLV)
What is the New-Gen Launch Vehicle (NGLV)?
- NGLV is aimed at a cost-efficient, three-stage to orbit, reusable heavy-lift vehicle with a payload capability of ten tonnes to Geostationary Transfer Orbit (GTO).
- It is featured with semi-cryogenic propulsion (refined kerosene as fuel with liquid oxygen (LOX) as oxidiser) for the booster stages which is cheaper and efficient.
- Design:
- Design will be simple and robust which allows bulk manufacturing, modularity in systems, sub-systems and stages and minimal turnaround time.
- Uses:Potential uses will be in the areas of launching communication satellites, deep space missions, future human spaceflight and cargo missions.
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It will replace the PSLV launchvehicle and aimed to be more efficient than other launch vehicles of ISRO. |
The PSLV:
- Polar Satellite Launch Vehicle (PSLV) is the third generation launch vehicle of India.
- It is the first Indian launch vehicle to be equipped with liquid stages.
- After its first successful launch in October 1994, PSLV emerged as a reliable and versatile workhorse launch vehicle of India.
- Some Successful launches:
- Launched two spacecraft "Chandrayaan-1 in 2008 and Mars Orbiter Spacecraft in 2013that later travelled to Moon and Mars respectively.
- The launch of PSLV-C48 marks the 50th Launch of PSLV.
- PSLV earned its title 'the workhorse of ISRO' through consistently delivering various satellites into low earth orbits, particularly the IRS Series of satellites.
- The PSLV is capable of placing multiple payloads into orbit, thus multi-payload adaptors are used in the payload fairing.
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