Does Your Fuel Economy Increase as You Go Higher?

At sea level, the speed of sound is approximately 761 miles per hour. While at the cruising altitude of the concord, at 60 thousand feet, the speedof sound is about 660mph. Wind is just high pressure going to low pressure. It's like you're moving from a crowded neighborhood to a place where you can get a little eno space,. Moving from the city to the country.