I have seen everything from private jets to 747s and A300s with small upright tails on their wing tips. What purpose do they serve?
By Bob Sillery (Editor); Research by Brad Dunn, Gunjan Sinha, and Dawn StoverPosted 02.11.2002 at 5:43 pm 0 Comments
They're called winglets, and their purpose is to reduce turbulence at the tips of an airplane's wings. The air pressure on the bottom of a wing is greater than the pressure on top, so when air flowing across the two surfaces meets at the wing tip, it forms a vortex-a miniature tornado. The vortices created by a large airplane are strong enough to flip a smaller plane that is following too closely.