motor mount tube

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  1. Azamiryou

    Motor mount design

    What are the design considerations for a LPR motor mount? What determines the length of the tube and placement of centering rings? I notice in kits the tube usually extends well past the thrust ring. Any reason for that? (I'm not talking about stuffer tubes, just an extra long motor tube.) Would...
  2. T

    Diameter difference between Body Tube ID and MMT OD

    Hello fellow rocketeers, hope you are doing well. As I kept designing my future rocket, one doubt came into my mind when looking at my BT and MMT. First of all, my BT is 1,968" OD and 1,85" ID; my MMT is 1,574" OD and 1,496" (38mm) ID. The thing is, there is only left 1 3/8 or 1,377" (3,5 mm)...