Odpowiedzi na post #6

I saw mention that it came over the Aleutians, then into my country Canada and then down to the area it is currently at. I suppose its' speed is...

As far back as WWII, Japan managed to get about 300 balloons loaded with incendiary bombs over North America, all launched from the main island...

The jet stream is very fast. Richard Branson covers this in detail in his autobiography.