It can also be done legally here in the Phoenix valley
without clearance as at least two pilots have demonstrated.
You only need to fly out to Gila Bend (778 msl), pull
the spoilers out until you’re under 800 ft agl and
then thermal up to the legal limit. I tried this once
but after circling around the Gila Bend airport for
half an hour at low altitude looking for lift decided
it just wasn't that important to me.





At 21:12 19 July 2005, wrote:
If can be done from Turf (Phoenix, Az) on a good day
- but you would
have to be on an IFR clearance to do it legally. Turf
is at 1600', and
I've seen cloudbases above 22,000' (FL220) on a good
day up by the
Grand Canyon (an 'easy' 2-3 hour flight from Turf).

There has been some talk of arranging for a 'Thermal
Window' that would
make this easier to do.

Kirk