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Thread: Cool G Sparky Flight =)

  1. #1
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    Cool G Sparky Flight =)

    My EZI-65 with one of my G54 Sparky motors. (similar to my G53 but with a little more propellant).

    http://www.youtube.com/watch?v=a3eHJ4RUVb8

  2. #2
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    Nice. If I remember, you said that you make these from scraps that AMW gave you, right?
    Josh

  3. #3
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    That is correct. =)

  4. #4
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    Do you just use 1/2 grains like loki or the I grains? I have some AMW38mm laying around I might mess with.

    Ben
    Ben Ullman

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  5. #5
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    Nice! Who sells the G54 btw? Looks as if it'd be a good park flyer.

  6. #6
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    Quote Originally Posted by AKPilot View Post
    Nice! Who sells the G54 btw? Looks as if it'd be a good park flyer.
    Its an "EX" load so maybe this thread should be deleted

    Ben
    Ben Ullman

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  7. #7
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    Quote Originally Posted by ben_ullman View Post
    Do you just use 1/2 grains like loki or the I grains? I have some AMW38mm laying around I might mess with.

    Ben
    Yes. The G54 design uses a standard AMW 38mm Skidmark grain cut in half. Custom made nozzle with a 3/16" core.

  8. #8
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    Quote Originally Posted by AKPilot View Post
    Nice! Who sells the G54 btw? Looks as if it'd be a good park flyer.
    Not sold. Closest thing that is sold is the PRO38 G Skid and the new 29mm G skids. I do believe the formula is different with the Pro series but I am not 100% positive on that. I think the classic AMW 38mm skids have more sparks

    I designed this motor as a park flier, and flown it many times. Few times near Albany, NY, couple times in my Parents front yard, and several times at the school I fly at with the scouts. The motor was even used by AMW to do some tests but I don;t think I am at liberty to talk about that :P
    Last edited by n3tjm; 25th May 2009 at 03:07 AM.

  9. #9
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    Here's a rocket on a Pro38 G69 skid: http://www.tripolisc.org/modules/xoo...n_sparky_G.wmv

  10. #10
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    Quote Originally Posted by n3tjm View Post
    Not sold. Closest thing that is sold is the PRO38 G Skid and the new 29mm G skids. I do believe the formula is different with the Pro series but I am not 100% positive on that. I think the classic AMW 38mm skids have more sparks

    I designed this motor as a park flier, and flown it many times. Few times near Albany, NY, couple times in my Parents front yard, and several times at the school I fly at with the scouts. The motor was even used by AMW to do some tests but I don;t think I am at liberty to talk about that :P
    Having just got back from a launch with many small CTI skids, I can tell you that they actually have significantly more grunt and noise than the AMW skids did in the same size. The I315 was less spectacular than many of the H loads that were flown. CTI has done skids properly. I don't think the sparks last as long, but there are plenty of them, and lots of noise.

    I also saw some Pro54 J skids - they are excellent loads. I may need to get some CTI cases now.
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  11. #11
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    Seems like the Cesaroni skids are faster than the AMW ones. Is it just me?
    Josh

  12. #12
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    Way to go, Sparky...err...Doug!

    Is it my imagination (or an optical illusion) or did your EZI-65 get just a touch squirrely right after it cleared the rod (or rail - couldn't tell in the dark)?

    MarkII
    Mark S. Kulka NAR 86134 L1, ASTRE 471, Adirondack Mtns., NY
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  13. #13
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    Quote Originally Posted by jj94 View Post
    Seems like the Cesaroni skids are faster than the AMW ones. Is it just me?
    I think they're about the same speed, but with a higher Isp. I know the 54-6XL load is a K990 or something like that, which would fit that assumption (since the old equivalent was a K1000).
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  14. #14
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    Quote Originally Posted by MarkII View Post
    Way to go, Sparky...err...Doug!

    Is it my imagination (or an optical illusion) or did your EZI-65 get just a touch squirrely right after it cleared the rod (or rail - couldn't tell in the dark)?

    MarkII
    Yes it did. I think it was caused by the lower launch lug binding with the launch rod when the top cleared the rod.

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