Using light materials, they created raptor-like bones and joints to make the wings and tail and fashioned ... mimicked what they saw with their mechanical bird. They then put it in a wind tunnel ...

The next advance, dronebuilders say, will be to emulate the way birds change the shape of their wings by overlapping ... a Stanford University mechanical engineer who studies biological flight.

the reverse-propelled engines lift the wing flaps, which act as airbrakes. But they didn't seem to have worked in this case." Experts identified the bird strike as the most likely cause of the ...

This experimental winged drone has little mechanical ... traditional fixed-wing aircraft in complex, tough-to-reach terrain that isn’t accessible to winged drones. Birds’ ability to combine ...