Tim DraperFounder and Managing Partne, Draper Associate · I back the ideas that look crazy first

Reaction Dynamics' launch vehicles can be stored and stocked up. 🚀

23 Apr 2025 · 1 min

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Reaction Dynamics' launch vehicles use hybrid propellant and can sit ready for months, then launch within one to two hours. Unlike SpaceX and Rocket Lab's cryogenic rockets, which must fire immediately after fueling, these can sustain thrust long enough to reach orbit.

How are you better than whatever SpaceX is using right now? They do rely on cryogenic propellants and they cannot be stockpiled. Our launch vehicle can be stored, it can be stockpiled. Whenever you need to launch, within an hour or 2, you can reach orbit. What does this enable that wasn't possible before?
If you fuel a SpaceX rocket or a Rocket Lab rocket, it has to go, it has to fly.
I did not invent hybrids. Despite all the advantages that we talked about and we cited, they couldn't meet the performance requirements for a long-duration burn to reach orbit. And that's what's possible with our technology.