Sho-wings were one of the many technological wonders that existed during the Age of Legends. They were transportation vehicles that ranged in shape and size, although the most common form was a delta-shape.
Sho-wings were designed for carrying passengers - numbering from few to the hundreds - over large distances, similar to other vehicles known as jo-cars, jumpers, and hoverflies.
Allegedly, immediately after the Breaking began, sho-wings disappeared from existence, and not even tales of them managed to survive to the Third Age. However, Moridin was known to have collected a number of parts to one, which he kept in a secret facility alongside other salvaged technology from the Age of Legends.