On Apr 13, 9:58*am, ContestID67 wrote:
Great document. *Thanks.

Concerning "Spratt guidelines of 2500’ AGL to launch, 3300’ AGL to
start, should be followed unless there is a good reason."

This is ambiguous as to what is being referenced for the AGL height.
Cloudbase? *Critical updraft height? *BL height? *Sniffer max height?
Beer fumes from the bacchanalia the night before? *;-)

Thanks.

I'm pretty sure this is top of the lift actually achieved by gliders
in the air. 3300 ft AGL is probably workable for many eastern sites
and possibly Hobbs but I would hesitate to start a task in Arizona
this low. Contestants are likely to be soon on the ground at local
strips or eating cactus! I personally would recommend a minimum of
5,000 ft AGL here.

Mike