Helicopters

In the 50's there was a promise. Yeah, of a helicopter in every back yard for every one. Well, here we are. Helicopters are still very rare. Like weeks go by without seeing one. Perhaps it is because they are so expensive. This is the primary reason. Also, they are hard to fly and airplanes are easy. Still, we would like to live in a world were flying machines fill the air. For example, one with many flying cars.