GLIDER WOOD is a type of wood used in the construction of gliders. BALSA is a lightweight, softwood that is often used for this purpose due to its low density and strength-to-weight ratio. It is also easy to work with and can be cut and shaped into the desired shape. BALSA is an ideal material for glider construction because it is strong enough to support the weight of the aircraft while still being light enough to allow for efficient flight.