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  1. M

    OpenRocket not recognizing intermediate stage after export from RockSim.

    Hi everyone! Long-time lurker, first-time poster. I'm exploring high-altitude darts, and conversations with a friend of mine with a large amount of HPR experience has led to some design exchanges. Unfortunately, we both use different sim software - he uses RockSim, and I use OpenRocket. This...
  2. T

    Which of these motors for Saturn V?

    There are lots of threads on motor conversions for the Estes Saturn V. I am posting this to ask for advice because I have a limited set of specific engine options. Long story short, I am on vacation at my parents with plans to build and launch the Saturn V while here. I want to use larger than...