Montblack wrote:

Speaking of marine grade plywood

I just finished up a stitch-n-glue (4 mm plywood with single layer
fiberglass inside and out) kayak yesterday, and took it out for it's
maiden run at the local lake. It's 17' long, single seater sea kayak.
Weighs about 35 LBs, but can take an ocean entry driving out through
heavy surf, so it's not a frail structure.

While paddling around, I got to thinking about this thread, and
imagining wings either side of me, tail feathers behind...

A bright finished plywood glider would be a true thing of beauty.