Cherokee-e

Discussion in 'Low Power Rocketry (LPR)' started by Joshua Westbrook, Sep 27, 2019.

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  1. Oct 13, 2019 #31

    John Taylor

    John Taylor

    John Taylor

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    The CP on the Cherokee E is 25.2 " from the front. The CG needs to be 23.03 or less from the front with motor. you may have to add nose weight as needed to bring the CG forward.
     
  2. Oct 13, 2019 #32

    Chris Brewer

    Chris Brewer

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    That was my assumption. Was worried that the fins backwards would change everything to.
     
  3. Oct 13, 2019 #33

    John Taylor

    John Taylor

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    Possibly a point to be considered. Anybody out there know if the fins on backwards changes the CP?
     
  4. Oct 13, 2019 #34

    Joshua Westbrook

    Joshua Westbrook

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    It might, but I flew one 3 times on 2 ds and an e, inlost it on the e flight. My fins were upside down on that one.
     
  5. Oct 13, 2019 #35

    dhbarr

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    It moves the CG back a tiny bit and the CP back a tiny bit more.
     
  6. Oct 13, 2019 #36

    Chris Brewer

    Chris Brewer

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    I added some nose weight using fishing weights and epoxy. I do not have a scale yet so I do not know how much weight I actually added.Now waiting for Apoxsee to dry so I can swing it again.
     
  7. Oct 14, 2019 #37

    Chris Brewer

    Chris Brewer

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    Ran another swing test Sunday evening and all good now.
     
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  8. Nov 7, 2019 at 9:55 PM #38

    John Taylor

    John Taylor

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    Ok I just launched it on a F44. WOW it really leaped off the pad! Great flight up to a about 1800 or so. Never lost site, gotta good line on it and recoverd it about 700 yards away over a barbed wire fence. Now I bought a JLCR for next time. Great rocket. Mine is modded with plywood thru the wall fins, nylon chute and a long tubular shock cord.
     
  9. Nov 7, 2019 at 9:59 PM #39

    John Taylor

    John Taylor

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    Sorry wrong thread, this is my Star Orbiter. However I built mt Cherokee E the same way but haven't launched it yet. Sorry for my confusion.
     

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