Mini Nike-X (A Downscale version of the Estes Classic)

Discussion in 'Cardstock Rocketry' started by JonathanOtt, Aug 23, 2018.

  1. Aug 23, 2018 #1

    JonathanOtt

    JonathanOtt

    JonathanOtt

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    Mini Nike-X.jpg This is a re-draw of Bob Harrington's NIKE-X.

    I utilized Chris Michielssen's 3-ply fold-over fin building technique and it worked out great.

    This mini rocket uses a BT5 body tube, and a NC5-A nose cone from the Estes 003160 NC5 nose cone 5-pack.

    EDIT: I built an Open Rocket file for the Mini Nike-X and it's attached.

    With an Estes A10-3T, it has a stability of 1.38 cal., weighs 17.3g, CG is at the base of the triangular mid fins (17.7cm from the tip of the nose; CP is right at the motor block (19.6cm from the tip of the nose); it gets 28m/s off the rod, apogee at 118m, max velocity 71.3m/s (161 mph).

    o_O

    The second page of the PDF is build instructions and I think I covered everything.

    I state in my instructions that it's streamer recovery, but I just added that. I'm guessing it's light enough for tumble recovery, but a 1" x 12" orange streamer really couldn't hurt and will aid in finding it if it manages to go into the weeds.

    Give it a build and let me know how it all works out for you.

    Feedback is appreciated.

    Jon
     

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    Last edited: Aug 24, 2018
  2. Aug 24, 2018 #2

    JonathanOtt

    JonathanOtt

    JonathanOtt

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    Here's the Open Rocket file
     

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  3. Aug 25, 2018 #3

    GlenP

    GlenP

    GlenP

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    That is really cool. I have been thinking about making a mini or MX size version of the Red Nova, including the nose cone out of cardstock. Any of the missile type rockets like this Nike X would be fun to do, Bullpup, Nike Smoke, etc...

    For the fins, I sometimes just use a 2 or 3 layer glue-sticked laminate of plain white 110# cardstock, then wrap the fold over fin pattern on top of that. You get a nice white edge that you can color with a marker to match the pattern of the fin. Scoring the paper before folding for a sharper crease sometimes will tear the surface and some white will show through on a color fin. Depending on the size of the rocket a 4 or 5 layer laminate of 110# cardstock is plenty strong enough for a fin. I rotate the paper direction as well, since the paper has a grain direction to it this helps minimize warping. After markering the fin edges, I will wipe a thin layer of white glue to help prevent delamination.
     
  4. Sep 28, 2018 #4

    BobH48

    BobH48

    BobH48

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    You are correct. The streamer was only there to aid in recovery. When I made my last one, I put in a MicroMaxx motor mount in it so I can launch in my side yard.
     

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