I don’t believe I lost the FIK 100 to the thermal coming off the parking lot at the local park. I learned from some reading that the thermal becomes a lot stronger a few hundred feet above the ground since there isn’t any interruption from ground terrain or winds. It wasn’t just the thermal that caused the loss, but the wind blowing from the west. By the time I brought the plane down from the thermal, it was blown far to the east and descended too quickly for me to bring it back. Tonight, I’ll post some flyers around the neighborhood in the hopes someone found the plane.