Question for Goony Builders

Discussion in 'Low Power Rocketry (LPR)' started by Bruiser, Aug 20, 2019.

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  1. Aug 20, 2019 #1

    Bruiser

    Bruiser

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    I have been thinking about building a Baby Bertha based goony and OR says I need to add nose weight. I was wondering if this is pretty common for Baby Bertha goony bashes?

    Thank you,
    -Bob
     
  2. Aug 20, 2019 #2

    kuririn

    kuririn

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    Yes, short squatty rockets generally require nose weight.
     
  3. Aug 20, 2019 #3

    dr wogz

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    The two I have built did not.
    Gooney Bird Zero & Der Gooney Max.

    Depending on fin size & placement (overhang off the back end) yo may not need nose weight.

    Which Gooney are you thinking about?

    Excelsior had plan & decal packs, but they seem to have disappeared
     
  4. Aug 20, 2019 #4

    Bruiser

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    The thing is that the Baby Bertha doesn't require nose weight built stock. I've actually made it longer by adding a 2" boat tail and I've moved the engine back to accommodate. You'd think that would help if anything by making the rocket longer. Do you think it could be because the fins are larger? It's a Goony Jayhawk.

    I saw that Excelsior seemed to have had a Nike X gooney that I would like to build but I couldn't find anything other than a picture of it on the web.

    -Bob
     
  5. Aug 20, 2019 #5

    dr wogz

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    the BB has swept back fin, that helps.

    the Jayhawk has "wings" for fins, you'll need nose weight.
     
  6. Aug 20, 2019 #6

    kuririn

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    You can download the Rocksim files for several of Gordy's old kits here:
    https://www.rocketreviews.com/rocksim-library.html
    Includes the Nike Goony, but it's mislabeled the Goony Max. Click on the nikeg file.
    Should be able to reverse engineer from the parts list and templates.
    I think I ordered the last goony from Gordy, an Honest Goon, about a year or so ago when he re-opened Excelsior just to sell some kits for a friend. It does not require nose weight, but it's a BIG three part nose cone.
    Also has a 1/2" fin overhang, I'm guessing for stability.
    BTW he just worked out some ISP problems and re-opened again after being down for several weeks.
    http://www.sandmandecals.com/
    Read about it here:
    http://www.forums.rocketshoppe.com/showthread.php?t=18027
     
    Last edited: Aug 20, 2019
  7. Aug 20, 2019 #7

    kuririn

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  8. Aug 20, 2019 #8

    Matt_The_RocketMan

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  9. Aug 20, 2019 #9

    Bruiser

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    A Goony (or Gooney, not sure which is correct) is sort of like a caricature of a rocket. They are generally built by kit-bashing a Baby Bertha kit.

    Here's a Gooney Phoenix
    Goony Phoenix 1.jpg

    I'll check out those links tonight. Thanks for showing them to me.

    -Bob
     
  10. Aug 20, 2019 #10

    kuririn

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    Funny, about an hour before your post I was looking at my build pile(s) and pulled this out:
    0820191003.jpg

    Started this a few months ago then got distracted.
    Guess I should wrap it up.
    Thanks for reminding me!
    Laters.
     
  11. Aug 20, 2019 #11

    Bruiser

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    I'd love one of those! Can you measure the fins?

    Bob
     
  12. Aug 20, 2019 #12

    kuririn

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    PM sent
     
  13. Aug 20, 2019 #13

    Bruiser

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    Just read Chris's build. Just like always, very informative. Thanks for the link I didn't know he had built one.

    -Bob
     
  14. Aug 20, 2019 #14

    Cape Byron

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  15. Aug 21, 2019 #15

    kuririn

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    Hmmm. Now you've got me thinking.
    Anybody out there done a Goony Falcon Heavy yet?
    Better yet, with a 3 motor cluster?
     
  16. Aug 21, 2019 #16

    kuririn

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    On second thought you wouldn't be able to see the goonified fins so,

    NEVER MIND!
     
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  17. Aug 21, 2019 #17

    Bruiser

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    Seems to me that would require lots of nose weight! Holy cow, lol!

    A little Patriot. It sims out nicely in OR. No nose weight and 400' on a C6. Building will commence very soon.

    Goony Patriot Sm.jpg

    -Bob
     
  18. Aug 21, 2019 #18

    Donnager

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    I'm thinking about a BT80 Estes Viking.....

    Maybe I should get my BT80 upscale flying first, though.
     
  19. Aug 21, 2019 #19

    Bruiser

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    Some of us were talking about bashing a Super Bertha into a Baby Super Bertha over in the Scratch Built forum. I brought up that could inspre awhole bew breed of goonies :)

    -Bob
     
  20. Aug 21, 2019 #20

    mikeyd

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    The name Goony came from a line of rockets, Estes came out with in 1973 that were based off a BT60, with the Bertha shaped nose cone, so that name stuck to any rocket that was basically a caricature of a well know rocket, made to look short and fat, normally by kit bashing the Baby Bertha.
    http://www.ninfinger.org/rockets/catalogs/estes73/73est16.html P4111205.JPG
     
  21. Aug 21, 2019 #21

    BABAR

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    Google

    Goony Model Rockets

    Under images and you will see a huge assortment of other kits that have been modded for Baby Bertha nose cone and short body tubes
     
  22. Aug 23, 2019 #22

    hcmbanjo

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  23. Aug 24, 2019 #23

    Mugs914

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    That is very nearly an accurate scale Doorknob! :p


    Doorknob_2002sup-2.jpg
     
  24. Aug 24, 2019 #24

    Bruiser

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    I was thinking about which rockets make the best goonies and I realized that one of the more important things is that it needs to have some sort of instantly recognizable features such as the shape of fins, number of fins or paint scheme. The thing that will make this gooney a Patriot and not a doorknob is the paint scheme :)

    Never heard of a doorknob rocket before. Reminds me of a Little John.

    -Bob
     
  25. Aug 24, 2019 #25

    BABAR

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    70934B92-6CAD-4864-A6DC-0AE596C03C4B.jpeg
    Interestingly there is a $245 high power rocket called the Door Knob


    https://locprecision.com/product/doorknob/
     
  26. Aug 24, 2019 #26

    Bruiser

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    Hmmn, I think that is it. A scale model. The paint scheme is a close match even.

    -Bob
     
  27. Aug 25, 2019 #27

    samb

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    A slight digression:

    Doorknobs boosted instruments into the bad air created by U.S. nuke testing in the South Pacific in 1958-59. Look up Operation Hardtack. Love that Sandia Labs high vis paint scheme. Thank you Peter Alway (and Mugs for posting :) ).
     
  28. Sep 3, 2019 #28

    Bruiser

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    Well my gooney Patriot is coming along. Didn't do a build thread but here it is in most of it's colors. It takes a little while because of the paint dry time before you can mask for the next color. It looks very strange without the black!

    Patriot Goony 1.jpg

    -Bob
     
  29. Sep 4, 2019 #29

    LW Bercini

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    Here is my one and only gooney: the Lunar Gooner
     

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  30. Sep 4, 2019 #30

    Bruiser

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    Very cool! Thanks for sharing :)

    -Bob
     

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