Many years ago, when life was simpler and one could fly a gas model airplane from your local airport, a friend of mine, Sam Hess, was going to fly his "Comet Clipper".
      It was a nice summer day, light breeze and some clouds.
      The plane had a little air timer that he set for probably 40 seconds runtime for the engine. He started it and hand launched into the wonderful peaceful sky!
      It climbed and climbed and finally the engine stopped. But instead of gliding down to a pretty landing, it kept on climbing! It had hooked into a thermal. When it got over a thousand feet we could no longer follow it.
      We tried to find it to no avail. Boo-Hoo!

      Probably six weeks later we got a clue. We were in Scheel's Hardware at 3rd Avenue and Broadway in Fargo ND, talking with a salesman when he happened to mention about a farmer, across the Red River in Clay County MN, that had found and damaged a model plane when he was harvesting.
      So Sam and another friend, Joe Hyland (He had a car.) drove out to the farm, and sure enough, there it was!

      Sam dug out this picture and sent to to me.