posted on Mar, 1 2012 @ 12:07 AM
reply to post by Vasa Croe
I applied what I'd learned about hang glider design to making paper gliders. I used a basic hang glider planform (outline shape) and put a slight roll
(using a pencil) along the leading edge to give it a bit of an airfoil (single surface) shape. I used pieces of tape (very small pieces or even a
staple or two) at the nose to adjust the center of gravity so that it was forward of the nose-tail center.
The real trick is in twisting the trailing edge upwards at the wing tips. When done just right you get a nice even twist across the trailing edge,
higher at the tip and reducing toward the "keel". This is how you tune the glider. If it nose dives you add a bit of twist, if it stalls you take some
away. If the twist is uneven from side to side the glider will turn.
The smaller and lighter you can make it the easier it is to walkalong. I got to using cigarette papers eventually but they didn't last long, the
humidity gets to them and they droop.
Here's a place to start but you can refine it a lot as you start to understand what's going on. You don't really need the canard (little wing in the
A planform something like this is more efficient, but harder to tune.
Launching them is also tricky. You don't throw it. You let it rest between (and on top of) your thumb and first finger (held horizontally) and slowly
accelerate it forward. At the right time (comes with practice) you drop your hand out from under it. You need to perfect this technique before you
consider the walkalong part.
Once you get the "hang" of it, it's hard to quit fooling around with them.
edit on 3/1/2012 by Phage because: (no reason given)