Chennai's Space Zone India says hybrid rocket restarted its engine mid-flight
Representative image: Pexels / Pixabay
Space Zone India launched two hybrid rockets near Chennai on 10 October 2026 and says its RRR-1 shut down and reignited its engine in flight; it now seeks investors.
What Happened
Chennai-based space start-up Space Zone India launched two small hybrid rockets from the Thiruvidanthai coast on East Coast Road, near Chennai, at 7 am on Saturday, 10 October 2026, in a mission called RHUMI TWIN 2026 that was built to test whether a rocket engine can be shut down and restarted in flight. In a release issued on 12 October, the company said its RRR-1 rocket fired its engine for 9 seconds, switched it off for 3 seconds and then reignited it for 5 seconds using hybrid propulsion, and that it will now begin talks with investors. Governor Rajendra Vishwanath Arlekar was chief guest and started the launch, which was organised with the Martin Group and the US-based Global Help International Foundation.
Key Facts
- Mission: RHUMI TWIN 2026, with two hybrid rockets, RHUMI 1 and RHUMI 2, launched on 10 October 2026 at Thiruvidanthai near Chennai.
- Goal: to test restart and reignition technology, and to promote space science among students.
- Company's reported result: a 9-second burn, a 3-second shutdown and a 5-second reignition on the RRR-1 vehicle. These figures come from the company and have not been independently verified.
- Guests: former ISRO director Mylswamy Annadurai and former DRDO chairman G. Satheesh Reddy attended.
- Founder: Anand Megalingam is Space Zone India's founder and CEO and the mission director.
- Next steps, per the company: repeated ignition tests, engine performance and combustion stability studies, restart reliability checks, and an investment and expansion plan.
- Before the launch, the team cleared about 100 kg of waste from the nearby coastline.
Why It Matters
Restarting an engine in flight is a big deal in rocketry. It lets a launch vehicle coast, then fire again to reach a precise orbit, drop off satellites at different heights, or bring a stage back for reuse. Large agencies and companies use it routinely, but it is far harder for a small team, and harder still with hybrid motors. A hybrid rocket uses a solid fuel and a separately supplied oxidiser; turning off the oxidiser flow stops the burn, but lighting it again reliably, under changing pressure and temperature in flight, takes careful engineering. If Space Zone India's restart result holds up in repeat tests, it would be a meaningful step for a young company.
India's private space sector has grown quickly in recent years. Most attention has gone to a few well-funded companies, but smaller firms like Space Zone India are building their own niche, often linking test flights with student training. The company says it has trained more than 5,000 students and has earlier launched batches of tiny femto and pico satellites and, in 2024, a reusable hybrid rocket. The presence of a former ISRO director and a former DRDO chief at the launch signals that experienced figures are taking the work seriously.
The plan to approach investors is the real test. Small-rocket start-ups need steady capital for repeated flights, ground testing and safety work. Independent data on the restart and a clear commercial use, such as sub-orbital research flights or training payloads, will matter more to investors than a single demonstration.
| Item | Detail |
|---|---|
| Launch date | 10 October 2026, 7 am |
| Site | Thiruvidanthai, East Coast Road, near Chennai |
| Rockets | RHUMI 1 and RHUMI 2 (hybrid) |
| Reported restart sequence | 9 s burn, 3 s off, 5 s reignition (company figures) |
| Next step | Investor talks and repeat ignition tests |
Impact
Short-term: Space Zone India will use the reported result to open investor discussions and plan further restart and engine tests.
Long-term: Reliable hybrid restart technology could help small Indian launch firms offer more flexible missions at lower cost, and give students hands-on experience that feeds the country's growing space workforce.
Who is affected: Space Zone India and its partners, investors in early-stage space technology, students in its training programmes, and India's wider private launch sector.
Key Takeaway
Chennai start-up Space Zone India says its RRR-1 hybrid rocket shut down and reignited its engine in flight on 10 October 2026, a result it now wants to turn into investment.
Questions and Answers
What did Space Zone India launch on 10 October 2026?
Two hybrid rockets, RHUMI 1 and RHUMI 2, from Thiruvidanthai near Chennai, under Mission RHUMI TWIN 2026, to test in-flight engine restart and promote space science among students.
What result does the company report?
It says its RRR-1 vehicle burned for 9 seconds, shut down for 3 seconds and reignited for 5 seconds. These are the company's own figures and have not been independently checked.
Why is restarting a rocket engine in flight useful?
It lets a rocket coast and fire again, which helps place payloads in precise orbits, release satellites at different points, or support reusable stages.
What is a hybrid rocket?
It uses a solid fuel with a separately supplied oxidiser. Controlling the oxidiser lets the engine be throttled or shut down, though reliable reignition is technically demanding.
Disclaimer: Prepared by the Peepals newsroom from publicly available sources with AI assistance. Information is accurate to the best of our knowledge at the time of publication and may change. Images may be representative. Not professional advice. Report an error via our contact page.
Sourced and fact-checked by the Peepals Global Editorial Team
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