Did You Know Some Airbus A350s Sport Different Winglets?

The Airbus A350 comes in two sizes; the A350-900 and the A350-1000. However, when comparing two -900s side-by-side, one may notice that the two jets of the same type feature different winglets. Have you ever noticed that? Why could this be? This article explores why some A350-900s feature different winglets.