Rattworks
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RATTworks employs the KISS system ("Keep It Simple, Stupid!") to provide simple hybrid and liquid rocket motors to the hobby rocket community. Our hybrid designs have no moving mechanical parts.
RATTworks hybrid motors incorporate a mono-tube, floating injector bulkhead design with the Urbanski-Colburn valve (a.k.a. "U/C valve") and are easy to assemble and fly.