Reminds me of when I was breaking in the engine in my 140, weather was bad so had to stay close, figured I'd try my hand at skywriting...minus the smoke
This is a pic of the tracks on my GPS, unfortunately there was a previous track going right through it making it look like I'm "crossing out" BCP...was able to clean up a few oddball tracks on the computer afterwards. It was kinda tough starting and stopping the letters...had to turn the GPS on and off to stop "making tracks"...trouble was trying to start it at the right time to make the next letter. You can see evidence of this on the lower left part of the "B", and a blip going through the underline.
Couldn't imagine doing it without GPS though

Tracks downloaded to Garmin Waypoint manager...sorry I don't know how to make screen shots

Tracks overlaid on Google Earth
