What advanced technology is being tested in ISRO's new "Next Generation Launch Vehicle" (NGLV) project to replace PSLV and GSLV?
Show answer & explanation
Correct answer: A
Explanation
Answer: Reusable booster stage with semi-cryogenic engine
Explanation
ISRO's Next Generation Launch Vehicle (NGLV), often nicknamed "Soorya," is designed to be a high-frequency, low-cost launch system intended to replace the aging PSLV and the heavy-lift GSLV/LVM3.
The core advanced technologies being tested for this project include:
Reusability: Unlike previous ISRO rockets, the NGLV is designed with a reusable first stage. Similar to SpaceX's Falcon 9, the booster is intended to land vertically back on Earth (VTVL - Vertical Take-off, Vertical Landing) or a sea-based platform, significantly reducing launch costs.
Semi-Cryogenic Propulsion: The rocket will utilize a semi-cryogenic engine (likely the SCE-200) that burns a combination of refined kerosene (Isrosene) and liquid oxygen (LOX). This is more powerful, eco-friendly, and cost-effective than the solid and liquid fuels used in the PSLV.
Key Facts for Exams
Objective: To provide a cost-effective, high-capacity replacement for PSLV and GSLV to support future missions like the Bharatiya Antariksha Station (Indian Space Station).
Fuel: Uses semi-cryogenic propellant (Liquid Oxygen + Kerosene) instead of the toxic hypergolic fuels used in Vikas engines.
Capability: Designed to carry roughly 20-30 tonnes to Low Earth Orbit (LEO).
Exam-Related Practice Questions
Q: What is the primary propellant combination used in the semi-cryogenic engine being developed for NGLV?
Answer: Liquid Oxygen (LOX) and Refined Kerosene (Isrosene).
Q: Which current ISRO launch vehicle is known as the "Workhorse of ISRO" and is set to be replaced by the NGLV?
Answer: Polar Satellite Launch Vehicle (PSLV).