They just hover and hover and hover.” No one is taking direct responsibility for the helicopters that appear to torment mostly the northern part of the neighborhood closer to Southern Boulevard ...

Rotor wake dynamics and tip vortex behavior are critical areas of study in aerodynamics, particularly for applications involving helicopters ... by these rotors in hover, utilizing advanced ...

If you've ever ridden in a car that can park itself at the push of a button, you'll appreciate the achievement of Skyryse, which has made a fully-conforming production helicopter that can hover ...

They found that the micro-helicopter's blades are as efficient at hovering as the average hummingbird. But while the micro-copter's blades kept pace with the middle-of-the-pack hummingbird wings ...

“There is a helicopter right now starting to do its rounds,” said Michele Logan, a more than 20-year resident of the coveted neighborhood nicknamed SoSo, on a recent Tuesday afternoon. “Here he comes, ...