Allow me to share the methods I used to make my video. I hope this will help somebody out there do it even better.
First, was the problem of capturing the plane in flight. I had chosen to make a fast model. A bad choice, from the point of filming it fly.
If I stand back far enough to catch the entire flight, it becomes just a dot and you cannot tell whether it is a plane or a stone inside a ball of paper.
If I stand close enough so that it fills the frame, then it just ... is gone.
My solution was to get the best of the flights I could grab, and fill in the rest of the time with the process of construction.
You can see in the video the paper apparently folding itself. It isn't. You are seeing it being unfolded, pulled by fine wires, played backwards.
I have tried to edit out the wires, but in some frames the results are glaringly obvious.
The movie itself was captured by a camera pointed downwards and the plane being launched into its field of view. Seen from the side, the plane is just not discernible as a plane. So I had to get a view from the top or bottom. If the camera is pointed upwards, the bright sky obliterates everything else.
I used Fast Movie Processor, VirtualDub and Irfanview as detailed in my instructable on Time Lapse Movies.
And the still images were captured by my scanner. Using the scanner is not my idea, I learned it from Don Lancaster at www.tinaja.com
Hope this helps, or is of interest to, somebody out there.