I learned on a Piper. My friend learned on a Cessna. When he received his license went went for the traditional $100 hamburger (he rents a plane and flys us som

I learned on a Piper. My friend learned on a Cessna. When he received his license went went for the traditional $100 hamburger (he rents a plane and flys us someplace for lunch). He rented a Piper. It was a very hot year. It was over 100F out on a concrete runway. On his 3rd landing pass I said "your wings are on the bottom" at which point he was able to land perfectly. Anyone here guess why?