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The ShotGun PBF

Discussion in 'Single Wing Aircraft Plans' started by Evil-Tunes, Dec 3, 2009.

  1. Evil-Tunes

    Evil-Tunes Moderator Staff Member

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    Evil-Tunes, Dec 3, 2009
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  2. Chuck

    Chuck New Member

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    Evil-Tunes...dug up this moldie oldie and cut it out and put it together but I don't have a clue where the CG is. Can you help me with a ballpark spot to begin to balance so it will fly?
    No real thread here, so I do not know how many have been built and flown. If I can get the CG right, it will fly!

    Thanks in advance, Chuck
    ...somewhere in Indiana...
     
    Chuck, Jan 17, 2011
    #2
  3. rcav8r

    rcav8r Moderator Staff Member

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    If ET doesn't respond before you need this, just search PBF on RCG. I'm sure you'll find it there.
    I can't see the wing profile in the screen shot, and I don't have SU here at work, but if the wing is a square/rectangle, or circle, then about 30% from the LE is a good start.
     
    rcav8r, Jan 17, 2011
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  4. Chuck

    Chuck New Member

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    Thanks rcav8r. I looked on RCG, did not see a search spot so could not find it. Your advice sounds good to me and I will give it a try tomorrow evening.

    Chuck
     
    Chuck, Jan 17, 2011
    #4
  5. Evil-Tunes

    Evil-Tunes Moderator Staff Member

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    Chuck,

    30% or 1/3 of the wing should be good starting point. I never flew this one I cut it for a friend. It is the same as the Pzza wing. viewtopic.php?f=34&t=321
    I just throw batterys on it and trim in the Air as Needed.



    Cheers
    E-T
     
    Evil-Tunes, Jan 17, 2011
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  6. Chuck

    Chuck New Member

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    Thanks a million buddy. I appreciate the help. I feel it will fly, got plenty of motor it seems although I don't know what it was designed for. I am running a 24g 1700 on it. If it crashes, for some reason (it won't be my fault:) it is no big deal as it is currently blue FFF and pretty wavy and unattractive. If it flies well, I will make a nicer one. Thanks again and Happy New Year.

    Chuck
    ...somewhere in Indiana...
     
    Chuck, Jan 18, 2011
    #6
  7. rcav8r

    rcav8r Moderator Staff Member

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    Back in the mid 90s We used to fly these things called Floppy Disks. Kind of the predecessor to the PBFs They were basically a 2 foot circle with a motor and fin. They were made out of coraplast ( corrugated plastic). They were designed for 3 channel and a .09 glow engine. I put a working rudder, and a Fox .25 in mine. I was hovering with this thing before anyone knew about hovering. As they were made out of the coraplastic, they were virtually indestructible. My buddy and I ended up kitting our modified version. We took some video ( and a tube TV with VCR) of the thing flying and crashing, and flying again to swap meets, and sold out of every one we took.
    I really need to make one of these out of FFF.
    If the PBF flies anything close to the old FLoppy Disk, you LOVE It.
     
    rcav8r, Jan 18, 2011
    #7

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