Airspeed, Temp, Pressure Altitude, etc are contain in the NMEA record of most smart varios. (Cambridge, Borgelt B50/500, etc.) Both the vario and GPS records are process by SeeYou Mobile, XCSoar, LK8000, etc.

Wayne
HP-14 "6F"
http://tinyurl.com/N990-6F

"Sean Fidler" wrote in message ...
How do you feed airspeed into see you?