Estes Porta Pad II in OR

Discussion in 'The Watering Hole' started by TRFfan, Feb 14, 2016.

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  1. Feb 14, 2016 #1

    TRFfan

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  2. Feb 14, 2016 #2

    RocketryBill

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    What is that supposed to be? Your panorama frightens me.
     
    Last edited: Feb 14, 2016
  3. Feb 15, 2016 #3

    Diggr

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    @ TRFfan

    That's pretty cool! Would you care to share how you did that? If you have the OR file I'd love to see it.

    Thanks in advance.

    Diggr
     
  4. Feb 15, 2016 #4

    McKailas Dad

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    Is it...stable?

    Or only if you shim one of the legs? :p
     
    Last edited: Feb 15, 2016
  5. Feb 15, 2016 #5

    TopRamen

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  6. Feb 15, 2016 #6

    TRFfan

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    I used a couple of phantom BTs along with some Freeform fin sets for the stands. The Blast deflector and Launch guide were made using an inner tube.
     
  7. Feb 15, 2016 #7

    TRFfan

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    It's actually stable. (with a 18 mm motor)
     
  8. Feb 15, 2016 #8

    TRFfan

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    Last edited: Feb 16, 2016
  9. Feb 15, 2016 #9

    TRFfan

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  10. Feb 15, 2016 #10

    K'Tesh

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    Nice! I've noticed that there's some people who are beginning to show some mad skills with OpenRocket, and now the teacher has become the student.

    Now, if someone could score me a scan of one of the legs of the PPII (I need the leg root to be parallel to one edge of the scan), I'll see if I can sim the hollows of it.

    Oh, and I'm not interested in the lightning version of the PPII, the old ones are IMHO the better looking of the two.

    I think I could also sim up a Big Foot if someone wants to scan its leg, and the swivel.
     
    Last edited: Feb 16, 2016
  11. Feb 16, 2016 #11

    TRFfan

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    Sorry, I tried to scan the legs of my PPII but my printer isn't working.
     
  12. Feb 16, 2016 #12

    K'Tesh

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    Thanks for the try.

    Anybody else want to give it a shot?
     
  13. Feb 16, 2016 #13

    jd2cylman

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    And here I thought the OP was taking a picture of his porta pad in Oregon... :facepalm: :facepalm: :facepalm: :eyeroll: :blush:

    Adrian
     
  14. Feb 16, 2016 #14

    TRFfan

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    Ha! Maybe I should change the title.... :)
     
  15. Feb 16, 2016 #15

    TopRamen

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    That's pretty sweet!!!

    Launch it and see how it flies!!!! In OR of course!

    Use the biggest composite 18mm that will fit.
     
  16. Feb 16, 2016 #16

    gerbs4me

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    At first I thought it said Estes Porta potty.....I think the coffee needs to kick in.
     
  17. Feb 16, 2016 #17

    Diggr

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    After TRFfan posted the ork file I downloaded it and studied it. K'Tesh's comment regarding the legs got me to thinking, which I might add is not always a good idea. :wink:

    I hacked up TRFfans file and adjusted dimensions so my tired old brain could keep track of the math involved. The first attempt looks like this:


    Porta-Pad.jpg

    And the OR file for those who want to look at it. Hope you find at least some use in it; it certainly was fun for me. Note: The OR file for the launch pad pictured above is Estes Porta-Pad II mod. I uploaded the other one in error and can't get rid of it now. Sorry.

    Diggr
     

    Attached Files:

  18. Feb 16, 2016 #18

    TopRamen

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    Has anyone launched it yet???
     
  19. Feb 16, 2016 #19

    neil_w

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    Asked in jest (I think) and yet... among all the odd-rocs out there, has anyone ever actually made a launchable launch pad (or facsimile) before? Seems like it should be doable somehow, and would be truly ridiculous in the best possible way.
     
  20. Feb 16, 2016 #20

    TopRamen

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    NO! Asked for real!

    In Openrocket of course, not in real life!

    You know, just plug in a motor and run a Sim for the fun of it to see what kind of stats it spits out, not for any serious reason or because you would actually try to fly a porta-pad in real life.
     
  21. Feb 16, 2016 #21

    neil_w

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    You've got me thinking it would be pretty cool to fly one (or something that looks like one) in real life, that's all. :grin:
     
  22. Feb 16, 2016 #22

    TRFfan

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    I actually flew the PPII (accidentally) a few years ago. Let just say that I forgot to take the launch cap off and the results were not cool. :blush:
     
  23. Feb 16, 2016 #23

    TRFfan

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    Ok everyone,

    Here is the revised file. I used the "leg webs/ribs' that Diggr used in his file. I also updated the stand to match the real parameters more closely.


    View attachment 282640


    A pic;

    View attachment 282639
     
  24. Feb 16, 2016 #24

    McKailas Dad

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    That's been a scratch idea I had considered many, many times. It would obviously have to be a rather substantial upscale, if one were to use BT50 (24mm) as the launch 'rod'. I have never scaled it, but I'd imagine the 'legs' (fins) would have to have about an 8' footprint.

    I'd suppose a 13 or 18mm 'rod' would scale it down, but... Bigger is better!!

    A few ounces of lead epoxied into the very top of the 'rod', rear eject 'chute, 24mm composite...I think it's doable :p

    I think many of us have 'accidentally' launched a Porta-pad, why not do it ....on purpose?!
     
  25. Feb 16, 2016 #25

    neil_w

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    I'd pay admission to see that one go. :y:
     
  26. Feb 16, 2016 #26

    McKailas Dad

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    Right?!

    And launching from the 'away pads' it may actually look real! You'd have to put a 'dummy' rocket on it to add to the effect. Bury and launch it from a 3/6 or 1/4 launch rod in the ground, so you wouldn't see it...

    Aw, man, that would be GREAT!!!


    K'tesh, you got this?! Lol
     
  27. Feb 16, 2016 #27

    TRFfan

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    You mean like this? :tongue:

    View attachment 282644
     
  28. Feb 16, 2016 #28

    TRFfan

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  29. Feb 16, 2016 #29

    TopRamen

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    THAT'S MORE LIKE IT!!!


    Thank You. :)

    Can't wait to get my other computer working. It does not crash when I open OR like this one, but it's power supply needs replaced.
    I'll definitely have some fun with this!!!
     
    Last edited: Feb 16, 2016
  30. Feb 16, 2016 #30

    K'Tesh

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    I know that I can do a little "more"... I need a better scan than this image I found online and have started modifying...

    Porta Pad II Leg demo.jpg

    BTW... I've noticed that my name is somehow attached to the .ork file already in circulation. That is NOT an Estes Sizzler. :wink:
     
    Last edited: Feb 16, 2016

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