Flaps, or more properly “trailing edge high lift devices,” have two functions—they increase drag and enable the wing to sustain lift at a lower speed. The purpose of increasing drag is not ...

One example of this different time comes to us by way of this split-flap display that [Erich] has been recreating. Split-flap displays work by printing letters or numbers on a series of flaps that ...

Caption The ivory-billed woodpecker was thought to have duck-like flaps in which the wings remain extended throughout the flap cycle. One of the videos revealed radically different flaps in which ...

Wissa’s team began by placing a single hinged flap at different positions along a wing’s upper surface. Using a wind tunnel, they then measured aerodynamic forces and airflow speeds around the ...

it looks as though each split-flap has thirteen unique positions. The first ten are for numerals 0 through 9, and the rest are either blank, or used to make up a few different weather icons with ...

The plastic flap ran the entire wing width and used tape as a hinge, far different from the traditional flaps planes use for ...