RON, THE PLYWOOD WINGS CONCERNED ME.. MY BROTHER INLAW WAS AEROBATIC TRAINED... THE HIPERBYPE WOULD HANDLE ANYTHING HE COULD DO.. NOT MANY AROUND.. LOVED THE TWO STICKS WITH SIDE BY SIDE SEATING.. I THINK I REMEMBER SPEEDS AROUND 175??? NOT SURE, IT WAS A GREAT EXPERIENCE A LONG TIME AGO.