Mimicking Seagull's Wings

Of course, aircraft wings allready mimic the shape of birds ' wings.
However , engineers have recently taken this mimicry to new heights.
" Researchers at the University of Florida, " reports New Scientist,
" have built a prototype remote-controlled drone with a seagull's
ability to hover, dive and climb rapidly."

Seagulls perform their remarable aerobatic maneuvers by flexing their wings at the elbow and shoulder joints.
Copying this flexible wing design,
" the 24- inch prototype drone uses a small motor to control a series of metal rods that move the wings says the magazine.

Theses clever engineered wings enable the small aircraft to hover and dive between between tall buildings.
The U.S. Air Force is keen to develop such a highly maneuverable craft for use in searching for chemical or biological weapons in big cities.