TechnologyWarning signs They're light, tough and more popular than ever with airplane makers, but composite plastics can be weakened with no visible sign at the surface. Can standard safety checks spot trouble before it's too late? Features
TechnologyHang on to the bumps for a smoother flight The performance-sapping turbulence of air passing over aircraft wings can be suppressed by carefully designed roughness in their surfaces ¿ìè¶ÌÊÓÆµ