A wing is a type of fin that produces lift, while moving through air or some other fluid. When air flows past it, due to the difference in curvature of its upper and lower parts lift is generated, which is responsible for balancing the weight of the plane, and the body can thus fly. If you look at a glider next to a conventional powered plane, you’ll notice a significant difference in the wings. While the wings of both are similar in general shape and function, those on gliders are longer and narrower than those on conventional aircraft. The slenderness of a wing is expressed as the aspect ratio, which is calculated by dividing the square of the span of the wing by the area of the wing.
The function of the tailplane is to provide vertical stability and control. A tail or a stabilator is attached at the rear end of the glider. It is composed of two parts a horizontal stabilizer and a vertical stabilizer to provide stability and control to the vertical up down movement of the nose. This up-down movement of the glider is termed pitching.