What did you do rocket wise today?

Discussion in 'The Watering Hole' started by BeerorKid, Jan 31, 2013.

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  1. Sep 16, 2019 #22,831

    BruceS

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    Launched a bunch, including my take on Decaffeinator, Pumpkin Warrior 3.1
     

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  2. Sep 16, 2019 #22,832

    neil_w

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    Any video of the Decaffeinator?
     
  3. Sep 16, 2019 #22,833

    BruceS

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    Yes. I am in the process of loading my files to YouTube and will post the link when done.
     
  4. Sep 16, 2019 #22,834

    JCRL

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    Sanding, sanding, and more sanding
     
  5. Sep 16, 2019 #22,835

    BruceS

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    Here's my video of the day.
     
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  6. Sep 16, 2019 #22,836

    kuririn

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    Did Pumpkin Warrior kick out an engine? I saw a smoke trail coming down.
    And did you use hot glue or foam safe CA for the build? Thanks.
     
  7. Sep 16, 2019 #22,837

    BruceS

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    No. Got all my engines from all flights. I used high temp hot glue. Primed with craft foam primer and top coat with Rust-Oleum Universal spray paint.
     
  8. Sep 16, 2019 #22,838

    neil_w

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    Wow, the Decaffeinator really flew nicely. Who needs a parachute anyway! ;)
     
  9. Sep 16, 2019 #22,839

    BruceS

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    Body was fine, but the power core was bent on landing. Will have to reconstruct and a better parachute setup!
     
  10. Sep 16, 2019 #22,840

    neil_w

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    I'm surprised it took any damage; I've had parachutes come down faster than that thing (and perfectly horizontal, too!).
     
  11. Sep 16, 2019 #22,841

    Matt_The_RocketMan

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    new13.JPG
    tried out orange paint instead of yellow for swift, I think its a plus
     
  12. Sep 16, 2019 #22,842

    kuririn

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    Saw a thread on YORF where they discussed rockets by Pitsco and Estes where you have to build your own body tube and remembered I had this in the build pile:
    0915191553.jpg
    So of course I had to build it.

    Cardboard mandrel for shaping body tube:
    0915191602.jpg

    Motor mount
    0915191603.jpg

    Recovery gear rigged to Jadebox's method I learned today:
    0915191701.jpg

    Cardboard fins cut out and aligned and tacked on:
    0915191601.jpg

    Fins and launch lug filleted, motor mount glued in:
    0915191746.jpg
    The tube was constructed by taking a piece of regular copy paper and convolutely gluing it to itself on the mandrel, then taking one strip of the orange wrap, wetting the adhesive backing with a damp sponge, and doing a right hand spiral, butting the seams together. Follow with a second piece doing a left hand spiral.
    My kind of rocket. No filling, sanding, primer or paint.
    An interesting build exercise, but I see why this was probably not a big seller.
    More of a niche product for the educational sector.
    Easier to just sub a bt-50 tube.:D
    I can cut quite a few bt-50 couplers from the mandrel though. I think it's long coupler tubing.
    Anyway the discussion thread is here:
    https://www.forums.rocketshoppe.com/showthread.php?t=18068&page=1&pp=10
    hcmbanjo's build thread is here:
    http://modelrocketbuilding.blogspot.com/search/label/Tech-Pak
    AC Supply still sells this:
    https://www.acsupplyco.com/estes/estesmain.htm
    Laters.
     
    Last edited: Sep 16, 2019
  13. Sep 16, 2019 #22,843

    BDB

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    My 3D printed sidewinder acted more like a missile than a rocket this weekend.



    I'm sure the issue was the last-minute switch from an Aerotech E30 to an Estes E12. The extra weight and the fact that it hung about 1" out the back surely shifted CG towards the aft.

    The rocket was mostly unscathed, and even if it was damaged, its easy to print replacement parts.
    IMG_3154.jpg
     
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  14. Sep 16, 2019 #22,844

    jqavins

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    Here's the thrust curve right after ignition for the E30:
    upload_2019-9-16_8-23-37.png
    And here for the E12:
    upload_2019-9-16_8-24-34.png
    The E12 is giving you way less speed off the rod. I'd look to that for the cause of the horizontal flight before the CG shift.
     
  15. Sep 16, 2019 #22,845

    BDB

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    The last minute swap was due to the fact that I buggered the igniter that came with the E30, and neither I nor anyone else at the launch had spares small enough to fit in the tiny nozzle.

    I looked in my launch box and found a E12 and an e-match. And then Go Fever took over.
     
  16. Sep 17, 2019 #22,846

    ewomack

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    The squirrel rocket is underway. After the Shenzhou, this one is an easy and fun build. Maybe I'm just putting of the WAC Corporeal, which looks pretty intense. Or perhaps it's all for the squirrels? In any case, I love the MASSIVE acorn nose cone.

    IMG_7979.JPG
     
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  17. Sep 17, 2019 #22,847

    Nytrunner

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    What is it, a BT 80?

    Just tackle the wac and follow the instructions, you'll do fine
     
  18. Sep 17, 2019 #22,848

    Red7Fifty

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    Ha, I got 2 Acorns on the build table right now too! Lol
     
  19. Sep 17, 2019 #22,849

    Red7Fifty

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    Does this seem like a lot of fire for an Estes BP C6-3?
    Friends' Scratch build on it's 2nd flight.
    X wing C6-3.jpg
     
  20. Sep 17, 2019 #22,850

    Red7Fifty

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  21. Sep 17, 2019 #22,851

    kuririn

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    If the lighting was low, as in overcast skies, or a launch near dawn or dusk, the exhaust can really show the orange flame.
    Here's a screen grab of my Kraken launching on a BP D motor near dawn: vlcsnap-2019-09-16-20h24m23s792.png
     
  22. Sep 17, 2019 #22,852

    Red7Fifty

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    For S and Giggles, a 3 Wheel Car.....turns into a rocket:
     
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  23. Sep 17, 2019 #22,853

    beantownJPL

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    I love low-light launches. Great light show.
     
  24. Sep 17, 2019 #22,854

    beantownJPL

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    Up up and away... Wait! Come back! TRF Supporter

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    Hahaha, KABOOM! Thank you for that.
     
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  25. Sep 17, 2019 #22,855

    Matt_The_RocketMan

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    I wonder if we can scale that with one of our own rockets ie. Estes Shuttle and a car.... hmmm :rolleyes:[​IMG] upload_2019-9-17_9-59-23.jpeg
     
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  26. Sep 17, 2019 #22,856

    readytorock556

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    975C4739-A047-440D-84C4-BB06D88B8250.jpeg Cool build!
     
    Last edited: Sep 17, 2019
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  27. Sep 17, 2019 #22,857

    beantownJPL

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    Up up and away... Wait! Come back! TRF Supporter

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  28. Sep 17, 2019 #22,858

    neil_w

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  29. Sep 18, 2019 #22,859

    JCRL

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    The rain has returned to the Jet City :( I've got 10 rockets waiting to be painted and launched. I'll take advantage of every sunny weekend to come but it's looking like the days of being able to work nonstop have come to an end.
     
  30. Sep 18, 2019 #22,860

    JCRL

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    That Explorer looks amazing! The air intakes are slick
     

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