NASA Tests Aircraft With Shape Shifting Wings
Zothecula writes In January, we first heard about FlexFoil; a variable geometry airfoil system that seamlessly integrates into the trailing edge of the wing. During the year the system has made the leap from the test bench to the sky, with NASA conducting tests of the FlexFoil on a modified Gulfstream III business jet.
I know, I know...never read the article. I'll save you from the horror of having to read the whole thing:
"This allows the FlexFoil to act like a flap in its various positions while still providing an unbroken air surface. This makes for a more streamlined wing and reduces noise during takeoffs and landings."
Is it just my observation, or are there way too many stupid people in the world?
According to TFA, they're replacements for flaps or slats that are a panel, continuous with the wing surface, that flexes, rather than pivoting or sliding.
This eliminates the gap, which starts vortices (causing noise and other issues).
So wing shape changing via pivoting panels has been stock for a while, while (comparably sized) profile changes done by flexing wing sections with skins continuous with the rest of the wing are what is new.
(Note that adjusting a wing by flexing it - slightly, over its full surface - has been around for a VERY long time. The Wright Brothers used it for yaw control, though they augmented (not replaced) it with a vertical rudder, starting with the glider that immediately preceded the "first powered flight" craft.)
Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
Fuck you modders! Parent is the troll and OP is Insightful or Funny!