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Thread: Coroplast Plastic full size airplane about to fly!

  1. #1
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    Coroplast Plastic full size airplane about to fly!

    Life Size Greetings | Facebook

    Ok this guy is completely nuts. I have built a lot of model r/c airplanes out of this plastic cardboard but no way for a real one.

    I can not believe he is actually going to try and fly this thing. It is hot glued together!

    The wings appear too close for a biplane and 2.5" pvc gutter pipe seems weak for a wing spar.

    Look at his photos and videos of it taxing.

    The guy is in Zephyrhills, FL.

  2. #2
    Moderator Topaz's Avatar
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    Re: Coroplast Plastic full size airplane about to fly!

    A fool and his life are soon parted.
    "If you have built castles in the air, your work need not be lost; that is where they should be. Now put the foundations under them." - Henry James Thoreau
    Member of the Lake Elsinore Soaring Club.

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    Re: Coroplast Plastic full size airplane about to fly!

    Wow...just wow. If I was young and foolish enough to do something like that, I'd sure hope I had the sense to declare victory after a short crow-hop down a grass strip, and then retire it to a museum!

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    Super Moderator orion's Avatar
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    Re: Coroplast Plastic full size airplane about to fly!

    Well, he's got guts and certainly an ability to follow through on his own ideas.

    I doubt it's designed to normal loads but given the wire bracing it just might fly around the patch. Hope he survives the hop.
    "To live is to learn; to learn is to live" (author unknown)

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    Re: Coroplast Plastic full size airplane about to fly!

    I think Coroplast might be the ideal skin panels for my UL wings

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    Registered User GlassVampire's Avatar
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    Re: Coroplast Plastic full size airplane about to fly!

    well the last update was on Aug 4th or so..and it said the first flight was that weekend....yikes.

  7. #7
    Moderator Topaz's Avatar
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    Re: Coroplast Plastic full size airplane about to fly!

    Yeah. You'd expect the triumphant "We did it!!" post and video, considering this was documented on FaceBook.
    "If you have built castles in the air, your work need not be lost; that is where they should be. Now put the foundations under them." - Henry James Thoreau
    Member of the Lake Elsinore Soaring Club.

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    Registered User LArzfromarz's Avatar
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    Re: Coroplast Plastic full size airplane about to fly!

    Sorry but it's stuff like that that will give all of us a bad name ...when he (the builder dude) is gone.
    Just because you can doesn't mean you should...
    My 2 cents (adjusted for taxes and inflation- .00000187 cents)

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    Registered User rtfm's Avatar
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    Re: Coroplast Plastic full size airplane about to fly!

    Fascinating! In fact, I found his plane most instructive in many ways: First, I was amazed that the airframe could support the engine. I've been worried about my airframe being able to support my engine. A bit of foam and some layers of cloth just LOOKS so insubstantial. But he's got an engine mounted to plastic. I find that quite encouraging. Second, did you notice how the tail feathers just wobble about when he taxis across uneven ground? The entire aft section seems able to twist like a cork screw. Again, I have been worrying about airframe rigidity on the little Razorback. Worry no more... My design is going to be about as rigid as it can be. But I was amazed by the fragility of his plane's aft section. Can't wait to see if it flies. I think if he takes it easy, he might be able to do a circuit or two... Duncan
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    Registered User tab380's Avatar
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    Re: Coroplast Plastic full size airplane about to fly!

    That thing will never leave the ground. If they let it on an airport, he will just run the length of the run way.
    Thomas A. Bowden
    SeaRey LSX Assembled by TAB Aircraft LLC. www.TABAircraft.com

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    Super Moderator orion's Avatar
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    Re: Coroplast Plastic full size airplane about to fly!

    Quote Originally Posted by rtfm View Post
    Fascinating! In fact, I found his plane most instructive in many ways: First, I was amazed that the airframe could support the engine. I've been worried about my airframe being able to support my engine. A bit of foam and some layers of cloth just LOOKS so insubstantial. But he's got an engine mounted to plastic. I find that quite encouraging. Second, did you notice how the tail feathers just wobble about when he taxis across uneven ground? The entire aft section seems able to twist like a cork screw. Again, I have been worrying about airframe rigidity on the little Razorback. Worry no more... My design is going to be about as rigid as it can be. But I was amazed by the fragility of his plane's aft section. Can't wait to see if it flies. I think if he takes it easy, he might be able to do a circuit or two... Duncan
    Keep in mind though that it is highly unlikely that that particular plane was properly engineered, if at all. As such, I probably wouldn't use it as an example of anything except maybe a creative way to get an honorable mention in the Darwin Awards.
    "To live is to learn; to learn is to live" (author unknown)

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    Registered User Autodidact's Avatar
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    Re: Coroplast Plastic full size airplane about to fly!

    Quote Originally Posted by tab380 View Post
    That thing will never leave the ground. If they let it on an airport, he will just run the length of the run way.
    If he's lucky; the bracing "wires" appear to be ropes tied(!) to hardware store turnbuckles.

    "Friends don't let friends..."
    "Milk cures wing dope poisoning."

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    Re: Coroplast Plastic full size airplane about to fly!

    A page that shows the good strength of coroplast, with the numbers to prove it:
    Advantages of Coroplast Corrugated Plastic Containers | Coroplast

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    Re: Coroplast Plastic full size airplane about to fly!

    Quote Originally Posted by Starman View Post
    A page that shows the good strength of coroplast, with the numbers to prove it:
    Advantages of Coroplast Corrugated Plastic Containers | Coroplast
    Compared to cardboard, maybe. That thing is so wiggly I suspect flutter would be a major problem, you can even see the wing flex as it taxis around.

    I wouldn't want to be anywhere within the ballistic trajectory in the unlikely event it leaves the ground.

    -Dana

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    Re: Coroplast Plastic full size airplane about to fly!

    Quote Originally Posted by Dana View Post
    Compared to cardboard, maybe. That thing is so wiggly I suspect flutter would be a major problem, you can even see the wing flex as it taxis around.
    You can't deny that flutter/stall interference could be an interesting phenomena could you?

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