Hi,

Interesting thought.

To answer your 2nd question below, I have flow with SeeYou Mobile with a
WAAS GPS only (CF GPS) and I found the thermal assistant to be pretty much
useless. However, it worked great when connected to a 302.

Good Soaring,

Paul Remde
Cumulus Soaring, Inc.
http://www.cumulus-soaring.com

"kirk.stant" wrote in message
...
Is anyone working on or studying using WAAS GPS data to make a stand-
alone vario? How would TE be implemented in such a device? Ground
speed change during a pullup? TAS based on circling winds?

Do the current PDA software programs (mSeeYou, Winpilot, etc.) when
used in GPS-only mode provide accurate vario data when hooked up to a
WAAS GPS?

Just curious - seems a 5 hz WAAS GPS could be the basis for a really
nice vario that wouldn't need any pitot-static imputs. I use mSeeYou
and a Themi, non-WAAS, and the "vario" data seems close, but I use it
more for trend and average than instantaneous data.

Winter can't end soon enough!

Kirk
66