Editing Flight (section)

===== Supersonic =====
{{Main|Supersonic speed}}
Supersonic flight is flight faster than the [[speed of sound]]. Supersonic flight is associated with the formation of [[shock wave]]s that form a [[sonic boom]] that can be heard from the ground,<ref>Bern, Peter. [http://news.bbc.co.uk/1/hi/talking_point/3207470.stm "Concorde: You asked a pilot."] ''BBC'', October 23, 2003.</ref> and is frequently startling. The creation of this shockwave requires a significant amount of energy; because of this, supersonic flight is generally less efficient than subsonic flight at about 85% of the speed of sound.