By my first reading, this is what I understand:

A 10,000 msl altitude limit, so at Marfa the visiting Sport Pilot in their
Sport Glider must leave the thermal at 5,000' agl on a day with 16,000'
cloudbases. Not a good idea over our "scenic" mountain terrain.

Now look at the US Sport Pilot Medical requirements: Driver License will
suffice, HOWEVER if you were ever denied a FAA Third Class Medical Certificate
you must show FAA that the disqualifying condition has been remedied. For
Sport Pilots only. Still no medical (or "history") required for "regular" USA
glider/ motorglider pilots.

Also, appears FAA ammended FAR 61.69 Towpilot endorsement which will allow us
to tow light gliders like "Sparrowhawk" - legally.

This is my first reading of this very long document - so my comments here are
not gospel. Read it yourself on the www.faa.gov website.

Note: this message applies only to USA readers.

Burt Compton
Marfa Gliders, west Texas
www.flygliders.com