Dad and I were flying with some friends a few weeks ago. Dad's in his mid-eighties and does pretty well. On this day he was having a hard time keeping balance in the grass which was a bit lumpy at the circle center. The PT-19 ARF was pulling more than he'd like, and his legs started to get tired. After a couple of minutes it was apparent that he was really having a hard time keeping his feet below him. He eventually fell over and I watched as the handle left his hand. I thought to myself "I better keep an eye on where the plane's going so it doesn’t hit me while I scramble out to make sure he’s OK.
To my surprise, the plane was doing loops bottoming out a good 20 feet high! I’d forgotten that he’d put the safety thong on his wrist. As I ran up, there’s dear ol’ Dad resting on the ground (just tired, no real problems) with the plane pulling his arm around limply while it did loops. Honestly, it was a pretty funny sight, his arm sort of just following the flight path of the plane.
I was able to grab the handle and somewhat gain control, but with the leash still tightly wrapped around his wrist, I couldn’t get smooth control and the PT-19 landed inverted, breaking only the NVA and fin!
This lesson taught me two things: 1) Always use a thong/leash, and 2) find a good flat spot for Dad and shorten his flights a little bit.