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 think the amswers are - launch if sniffer reports reaching 2,500agl
and Task open if task adviser in that class reports reaching 3,300
agl.

The CD may, or may not, ask other pilots what height they have
achieved before opening the task. Who is asked may depend on who was
nice to the CD the evening before.

Andy