INNOSPACE has scheduled a second SEBIT test flight from Brazil’s Alcântara Launch Center, targeting November 29, 2026. The South Korean company announced a 26-day launch window running from November 16 through December 11, with dates expressed in Brazil local time.
The flight will test an upgraded suborbital vehicle. Engine thrust has been increased from the three-ton class to the four-ton class, and the flight-control algorithm has been redesigned. The launch window was coordinated with Brazilian aerospace company ALADA, the Brazilian Air Force, and the Brazilian Space Agency.
SEBIT is a single-stage rocket measuring 8.7 meters long and 0.7 meters in diameter. Its hybrid engine powers a vehicle designed to carry experiments and technology payloads to altitudes of up to 100 kilometers.
The intended service is high-altitude and microgravity testing. Customer equipment can experience flight conditions useful for research and technology demonstrations without being placed in a sustained orbit.
Changes Following the First Flight
SEBIT’s first test flight took place at Alcântara on August 19, 2026. The rocket departed its planned trajectory, and the flight was terminated early.
INNOSPACE’s subsequent analysis identified differences between predicted and actual behavior during the low-speed portion of flight. The company traced the control work to the algorithm governing four fins at the vehicle’s lower section. Those fins regulate its attitude and direction.
The flight also exercised the company’s non-pyrotechnic termination system. According to INNOSPACE, a termination command shuts off the oxidizer supply, ending propulsion, and initiates vehicle separation. The company reported that the system operated in its designed sequence during the August flight.
The follow-on test combines the revised control algorithm with increased engine thrust. Its stated purpose is to evaluate the modified vehicle and collect additional flight and operating data.
Launch Operations in Brazil
Alcântara operations connect the Korean developer with Brazilian launch infrastructure. The Brazilian Space Agency identifies INNOSPACE Brasil, based in São José dos Campos, as the subsidiary managing the company’s launch operations at the center. The Brazilian Air Force operates the facility.
The SEBIT campaign will use a launch-center operating period previously allocated to HANBIT-Nano, INNOSPACE’s small-satellite launch vehicle. The company’s November announcement places HANBIT-Nano’s launch target in the first half of 2027.
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