What did you do rocket wise today?

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

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  1. Jan 16, 2020 #24,121

    neil_w

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    No worries, it was a joke.

    Rockets (particularly larger ones) are usually size-identified by their body tube diameter. For smaller rockets the body tube designation (e.g. BT55) does it. Of course other parameters can be relevant as well (length, weight), but size starts with diameter.
     
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  2. Jan 16, 2020 #24,122

    jqavins

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    Nothing in mind but an eventual scratch. I was walking by when the paper was being changed and said "Ooh!" Maybe a 54 mm motor mount, which would leave room for about 9 mm of fin tab. I weighed it last night and and it's about 350 grams, so it needs a strong motor, and without using up too much of it's modest length. That means it needs a good diameter. 54 is more than enough, but I can always adapt down.
     
  3. Jan 16, 2020 #24,123

    jlabrasca

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    .
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    [​IMG]

    Is this thing on?
     
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  4. Jan 16, 2020 #24,124

    rharshberger

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    IIRC Semroc sells the decals separately.
     
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  5. Jan 17, 2020 #24,125

    SeanW78

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    Last edited: Jan 17, 2020
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  6. Jan 17, 2020 #24,126

    Doug Holverson

    Doug Holverson

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    I started building a couple Mini-Dactyl clones.
     
  7. Jan 17, 2020 #24,127

    comodelbuilder

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    It’s simple... I like rockets.

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    Yes sir!
     
  8. Jan 17, 2020 #24,128

    bibbster

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    I'll second that! Its self leveling and provides a tough finish. I use it exclusively on my slot car builds.
     
  9. Jan 17, 2020 #24,129

    Wm Reid

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    IMG_0465.jpg

    This morning, my junior engineer helped me glue on the fins of our clone Cherokee D. Benjamin is 4 & loves to help me ‘put the glue on’. (The photo shows the beginning of the fillet process.)

    More to follow

    Reid
     
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  10. Jan 17, 2020 #24,130

    RocketT.Coyote

    RocketT.Coyote

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    Wiped drool from muzzle after viewing Boyce Aerospace Catalog.
     
  11. Jan 17, 2020 #24,131

    Wm Reid

    Wm Reid

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    Brilliant, thanks
     
  12. Jan 17, 2020 #24,132

    prfesser

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    Laid out 8 bulkheads/centering rings, to be Dremel-cut this afternoon if it'll warm up just a bit. When I can't find my compass or trammel points, I just trace around the end of the tube, then find the center and drill.

    I expect most of you know this dodge for finding the center of a circle, but just in case: Take the corner of a sheet of paper, or any other right-angled item with a sharp point. Place the point on the circle. Mark where the sides cross the circle. The line connecting those two intersections is a diameter.

    Now just do it again at a very different angle. The diameters cross at the center.
    upload_2020-1-17_10-53-43.png

    upload_2020-1-17_10-54-40.png
     
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  13. Jan 17, 2020 #24,133

    jqavins

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  14. Jan 17, 2020 #24,134

    mbeels

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    I bet it's got a great margin of stability
     
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  15. Jan 17, 2020 #24,135

    Wm Reid

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  16. Jan 18, 2020 #24,136

    bibbster

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    My daughter and I worked on this project. Not sure what we are calling it yet, but if it doesn't fly it will at least make a cool lamp! Lol
     

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  17. Jan 18, 2020 #24,137

    Joshua Westbrook

    Joshua Westbrook

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    Eggscaliber!! Nicely done!
     
  18. Jan 18, 2020 #24,138

    GalantVR41062

    GalantVR41062

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    I worked on some final touches on the MC Torrent built light, less then 42oz w/o motor. I also got 2 coats of primer on the nose cone and drilled the 3 holes for push pins to hold the nose cone on the payload tube.

    ~John
     

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  19. Jan 18, 2020 #24,139

    bibbster

    bibbster

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    Thanks! We hope to get the launch lug and lights installed this weekend.
     
  20. Jan 18, 2020 #24,140

    jqavins

    jqavins

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    That's an egg with a very large caliber.
     
  21. Jan 18, 2020 #24,141

    NAR29996

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    Sitting in a chair at the field watching rockets fly. Flown a few myself
    1579375032681.jpeg
     
  22. Jan 18, 2020 #24,142

    Tobor

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    I joined Tripoli today.
     
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  23. Jan 18, 2020 #24,143

    JCRL

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    IMG_20200118_115430.jpg

    Received my 1:3 scale CSXT GoFast kit today :D #9 out of 100. Thanks @Buddy Michaelson

    CSXT was my inspiration for getting into rocketry and I'm just so happy to own a piece of civilian spaceflight history.
     
    Last edited: Jan 18, 2020
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  24. Jan 18, 2020 #24,144

    John Taylor

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    Good job!
     
  25. Jan 18, 2020 #24,145

    Tobor

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    Thx. I think reading "Large and Dangerous Rocket Ships" was the final motivator to add my support.
     
  26. Jan 19, 2020 #24,146

    Bill Hanson

    Bill Hanson

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    Managed to destroy my Featherweight Magnetic Switch.

    Had just got my avionics sled all wired up, waved the magnet over it to test. Turned on as advertised.

    Waved the magnet (their big one) over the sled to turn it off, and the sled jumped up to the magnet, which (of course) stuck straight across the power terminals. LED went “pop” and smoke rose from the switch. Toasted. Thank goodness my RRC3 seems to have survived.

    Think I’m going to dip the magnet in acrylic to prevent this in the future. Maiden flight of my MD 38mm is on hold — but Featherweight has already shipped me a new switch. Thanks for quick response!
     
  27. Jan 19, 2020 #24,147

    Wm Reid

    Wm Reid

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    IMG_0466.jpg

    Look what came today! My beautiful (and tolerant) wife is Canadian...I’m getting this one into my build queue for this spring!

    I also spent a little time on the Cherokee D project...the motor mount is built and installed. I need to order the decals for it and then wait for decent weather to do a little paint work
     
  28. Jan 19, 2020 #24,148

    Nytrunner

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    Enjoying the old techniques from the Pro Series Patriot.
    -Laminated centering rings
    -Aluminum flash protector for the aft end
    -Not enjoying the warped old die cut wood. Makes laminating them together a challenge
    20200118_212947.jpg 20200116_233331.jpg 20200116_233436.jpg 20200118_214653.jpg
     
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  29. Jan 19, 2020 #24,149

    Flyfalcons

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    Thought I had my video editor issues licked, so I spent seven hours editing launch footage. Then the program wouldn't save the file as a movie. Oy vey..........:mad:
     
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  30. Jan 19, 2020 #24,150

    jeffjblack

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    Video from yesterday.

    It's the 1st 2020 public launch for Southern Arizona Rocketry Association. I just built a new rocket with 3D printed parts. This rocket flies fine. But, gripping drama as the 2nd flight suffers a CATO or catastrophe at take off.



    #ModelRocketry #SARA #CATO
     

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