Skin discoloration can be due to changes in melanin. Melanin is a skin pigment that gives color to the skin. Changes in melanin can also cause skin to be patchy. Treatment for skin discoloration includes using topical treatments.
Winglets increase an aircraft's operating efficiency by reducing what is called induced drag at the tips of the wings. An aircraft's wing is shaped to generate negative pressure on the upper surface and positive pressure on the lower surface as the aircraft moves forward.
Monocoque - Construction method in aircraft in which formed aluminum skins are applied with rivets or adhesives over a series of station point bulkheads to make the fuselage or other structures. Panel - Used to describe a portion of a wing generally from a point of attachment at the fuselage or another dissimilar shaped portion that may be attached separately as in inner and outer sections of a single left or right wing or as in the left and right portions of wings that can be removed for ...