American space agency NASA says its transonic truss-braced aircraft wing would need an ice protection system to fly safely ...

The aspect ratio of a wing is the relationship between its span and its chord-the distance from leading edge to trailing edge. A U-2 has a high aspect ratio; an F-104 has a low one. A wing with ...

NASA is testing radical new airplane wing designs that could drastically cut fuel use—but there's a catch: they may be more ...

This phenomenon occurs when air flow around the leading edge of flapping wings rolls up into a vortex, creating a ...

The wings, for example, are shaped to create lift. The leading edge is thicker than the back edge, and they are covered in feathers that narrow to a point. Airplane wings are modeled after bird wings.

Two icing test campaigns conducted on a section of a transonic truss-braced wing (TTBW), like that in development for the X-66 flight demonstrator, suggest large sections of the leading edge will ...

Prominent black crescent framing lower edge of auricular. On perched bird, wing patch shows only as a thin white line along the leading edge of the folded wing. Adult male: grayish or grayish ...