Deep Blue AerospaceIn Development
Reusable kerosene-liquid oxygen rocket engine in Deep Blue's Leiting (Thunder) family. Nine Thunder-R engines power the Nebula-1 first stage.
Latest update Sep 15, 2026
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Completed a nine-engine, full-system first-stage static fire under simulated flight conditions in November 2025. The company engine page now lists 283 kN sea-level / 335 kN vacuum thrust, 40-110% throttle, and at least three starts. March 2026 Nebula-1A vehicle coverage still cited about 22 t (~216 kN) each; the clustered first stage is still waiting on the Nebula-1 debut.
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Two-stage, partially reusable kerosene–liquid oxygen medium-lift rocket with a vertically landing first stage powered by nine Thunder-R engines. The Nebula-1A debut variant adds grid fins and sea-recovery capability for a first-stage splashdown.
Larger, five-meter-diameter kerosene-liquid oxygen heavy-lift rocket stepping up from Nebula-1, designed to carry more than 25,000 kg to LEO on a cluster of up-rated Thunder-RS engines with planned first-stage recovery and reuse.
Up-rated, ~130-tonne-class kerosene-liquid oxygen engine in Deep Blue's Leiting (Thunder) family, using needle-valve injection and deep throttling, developed to power the Nebula-2 first stage with planned reuse.
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