"Morgans" wrote

There are some pretty strict definitions, as I recall, having to do with
weight to area, or span, and glide performance, IIRC. I'll try to see
what
I can find.

After more than an hour of searching, I found the motor glider specs he
http://www.sonex-ltd.com/motorglider_definition.html

It could glide like a dog, but it has to carry no more than two, not exceed
1874 pounds, and the maximum weight to wing span squared can not exceed .62
lb. / ft squared.

So that means that at maximum weight, you would need a wingspan of about 55
feet.

Doable? I think so. For a seaplane, or amphibian, it would have to have
some type of pontoons or floats on the tips, or it would hit the tips, on
the slightest bit of rocking. Not a problem.

How about the rating needed? For a powered glider, a glider rating, with an
endorsement for self launch, I think, is all you need. What about launching
from water? More endorsements, or is there one for water to add to glider?
Would you have to have a single engine fixed wing land/seaplane?

One thing I can say, is that I have never seen _this_ question here, (or
anywhere) before! g
--
Jim in NC