if a helicopter hovers high in the air it's not dangerous because they have time to turn that height/energy into forward motion. see "dead man's curve" https://

if a helicopter hovers high in the air it's not dangerous because they have time to turn that height/energy into forward motion. see "dead man's curve" https://en.wikipedia.org/wiki/Helicopter_height%E2%80%93velocity_diagram https://en.wikipedia.org/wiki/Helicopter_height%E2%80%93velo...