A must for flight and aerospace curricula, the Pitsco Wing Tester lets students visualize aerodynamic forces at work. Design and build an airfoil with the desired balance of lift and drag properties and then analyze and evaluate it with the Pitsco Wing Tester. Simply clip the airfoil into the bracket and balance it with the brass counterweight. Turn on the fan and watch your wing take flight! Weight can be added to determine the efficiency of the airfoil. Note: Foam wing not included.