If helipads can only handle one chopper ever few minutes, and they are surrounded by clear and open space, then that tells you that theres no way flying cars with the frequency of typical roads or even quite streets will ever happen.
I think that's to do with the wake/vortices a helicopter creates. Apparently, the effect is so strong that it can affect lift in a fairly large area over a few minutes. There's a recent case where a light plane took off in the neighborhood of a heli that just landed, and it veers off course, and hits the heli.
I think that's to do with the wake/vortices a helicopter creates. Apparently, the effect is so strong that it can affect lift in a fairly large area over a few minutes. There's a recent case where a light plane took off in the neighborhood of a heli that just landed, and it veers off course, and hits the heli.