Cool unit, but best suited for thermal-hunting duration gliders, IMO......I've got enough trouble keeping track of my plane without my spotter looking at a black box, calling out altitude, rate of climb/descent, airspeeds, battery voltage, pump voltage, RPM, Angle of Bank, Fuel Remaining and Lat/Long coordinates, while avoiding a mid-air with the other 6 guys in the air....

Ron, what we really need is TCAS......bet David would agree....

Tom