Re: ultralight/moped anyone?
You're right HoughMade, The materials they use for those human powered machines are expensive. Composite construction is of particular interest to me. I am by no means an expert in the subject but I have done a lot of work with fiberglass which is relatively cheap. Mainly just experiments and building things for my own enjoyment including a fender and headlight for my bike. However the human powered planes like the Daedalus were made with a lot of carbon fiber which is a lot more expensive than glass and more difficult to work with. They also used a lot of polyester fabric for covering flying surfaces. That stuff takes a special touch to do it just right. I for one still think that it might be possible, but I don't think that I could build anything light enough.
Justthisguy, if you do make an attempt at this, please keep us informed. I think most of us would be interested and maybe we could offer some pointers along the way.