Thanks,

I've told the story before, but I go once more with it.

I built it in a few hours out of a foam material called "Super Tuff-R" a sheathing material available from any builders supply store. (The difference between "Tuff-R" and "Super Tuff-R" is the super has a better skin on one side, not just the foil one side, paper on the other.)Basicly a skinned foam, it's kind of brittle, but is very easy to work with, just don't try to bend it too much. There is no "spar" to speak of, just some packing tape and foam.

I also used a piece of PVC drainpipe for the "fuse". Could have been a little lighter if I'd have used a liteply or balsa fuse.

It had a Magnum FS .52 for power and weighed (R.I.P.) 4.5 lbs, or about 2 kilograms for those not in the U.S.A.

Not the fastest delta, but it was the only 88" span 4 stroke park flyer I know of.....