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diameter

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  1. Mr G

    Where is your HPR sweet spot?

    What diameter rockets and motors do you prefer or fly most often? Choose what comes closest from the available choices. Select all that apply. Feel free to explain and add other preferences (e.g., cardboard vs fiberglass, DMS vs RMS, single vs dual deploy, etc) in your post.
  2. OverTheTop

    Core Diameter of a CTI M2020?

    I am currently pondering some ignition for a sustainer running a CTI M2020 motor. Would somebody please measure the core diameter (at the top end, if it matters) for me? I will let you in on what I am thinking when my ideas are a little less nebulous and a little more on CAD. Thanks :)
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