Morgans wrote:

wrote

I think the glider cross country distance record of some 700+ miles,
if I'm not mistaken, was flown at no more than 400' agl or so.

OK, I'll bite! What kind of flight/ circumstances allow a glider to travel
that distance, at that low level?

The flight started on a ridge of the Appalachians. The pilot followed the ridges
down to Tennessee, staying on the western side about 50' AGL. That way he stayed
in a constant updraft. The article I read said the turbulence was brutal.

George Patterson
He who would distinguish what is true from what is false must have an
adequate understanding of truth and falsehood.