What are the unique design features and strategic advantages of India's Small Satellite Launch Vehicle (SSLV) compared to traditional launch vehicles like PSLV, and what challenges must be addressed to fully operationalize its commercial potential?
Show answer & explanation
Correct answer: B
Explanation
Solution: The correct answer is SSLV is designed for launching small payloads on-demand into low Earth orbit, offers rapid turnaround, modular manufacturing, and on-site assembly, but faces challenges in payload capacity, precision injection, and commercial competition.
Explanation:
☛ The Small Satellite Launch Vehicle (SSLV) is a 3-stage all-solid launch vehicle developed by ISRO specifically for on-demand launch of small satellites.
☛ It can carry up to 500 kg of payload into a 500 km Low Earth Orbit (LEO) and up to 300 kg into a Sun-synchronous Orbit (SSO).
☛ Unlike the PSLV, which requires around 60 days and a large team to assemble, the SSLV can be assembled in just 72 hours by a team of only 5 to 6 persons.
☛ It features an upper terminal stage called the Velocity Trimming Module (VTM), which is liquid-fuel based to achieve precision orbital injection.
☛ Strategic challenges include stiff global commercial competition (such as SpaceX's rideshare missions), scaling production via industry transfer, and maintaining low-cost economics.
Extra Exam-Relevant Facts:
☛ NewSpace India Limited (NSIL): The commercial arm of ISRO tasked with commercializing and transferring production of launch vehicles like SSLV and PSLV to private industry.
☛ SSLV-D1: The first developmental flight took place in August 2022, which failed to inject the satellites into the intended orbit due to a sensor anomaly.
☛ SSLV-D2: Successfully launched on 10 February 2023, deploying EOS-07, Janus-1, and AzaadiSAT-2 into a 450 km circular orbit.
☛ SSLV-D3: The third and final developmental flight was successfully executed in August 2024, successfully deploying EOS-08.
Important One-Liners for Upcoming Exams:
☛ What is the payload capacity of SSLV into a 500 km Low Earth Orbit? → Up to 500 kg
☛ How many solid propulsion stages does the SSLV vehicle possess? → Three solid stages
☛ What is the terminal liquid-propellant stage in SSLV called? → Velocity Trimming Module (VTM)
☛ In which year was the first successful development flight (SSLV-D2) conducted? → 2023
☛ Which commercial wing of ISRO oversees the commercial operations of SSLV? → NewSpace India Limited (NSIL)