Archive · 31 Dec 2025
ISRO Tests Improved SSLV Third Stage
ISRO, the Indian space agency, did a big test on a part of their new rocket called the SSLV.
This part, called the third stage, helps the rocket go really fast.
They made it better by using a special material called carbon-epoxy, which makes the rocket lighter and can carry more stuff into space.
The test was a success and lasted about 108 seconds.
ISRO also said they have been building more places to make these rocket parts in India.
This is important because it means India can send more things into space more easily.
Some people think this is great because it makes space travel more efficient, while others think the money could be spent on other important things.
ISRO successfully conducted a static test of the improved third stage of the SSLV at Sriharikota.
The test validated a carbon-epoxy motor case, reducing the stage's mass and improving payload performance by 90 kg.
The improved design includes a more efficient igniter and nozzle system with fault-tolerant electro-mechanical actuation.
The high-strength carbon filament-wound motor case was developed at the Vikram Sarabhai Space Centre.
ISRO commissioned multiple facilities this year to enhance solid motor production capacity in India.
- Who
- Indian Space Research Organisation (ISRO)
- What
- Conducted a successful static test of an improved version of the third stage of the Small Satellite Launch Vehicle (SSLV)
- When
- Tuesday, December 31, 2024
- Where
- Satish Dhawan Space Centre, Sriharikota, Andhra Pradesh
- Why
- To validate an improved version of the SS3 stage with a carbon-epoxy motor case, reducing mass and improving payload performance
Proponents of ISRO's advancements
Critics of space exploration costs
Benefits of the improved SSLV
Proponents of ISRO's advancements
The improved SSLV with a carbon-epoxy motor case enhances payload capacity and reduces mass, making it more efficient and cost-effective for launching satellites.
Critics of space exploration costs
While the improvements are technologically impressive, the high costs of space exploration and rocket development could be better allocated to other pressing needs.
- Organization
- Indian Space Research Organisation (ISRO)
- Test Location
- Satish Dhawan Space Centre, Sriharikota, Andhra Pradesh
- Test Date
- Tuesday, December 31, 2024
- Vehicle
- Small Satellite Launch Vehicle (SSLV)
- Stage Tested
- Third Stage (SS3)
- Payload Improvement
- 90 kg
- Test Duration
- 108 seconds
- Motor Case Material
- Carbon-epoxy
- Igniter and Nozzle System
- Improved design with fault-tolerant electro-mechanical actuation
- Motor Case Development
- Vikram Sarabhai Space Centre
- Solid Motor Casting
- Satish Dhawan Space Centre (SDSC)
- New Facilities
- Solid motor production facilities commissioned in July and September 2025
- Indigenous Equipment
- 10-tonne vertical mixer for solid motor production