Board Thread:General Discussion/@comment-24074103-20131122113452/@comment-26808654-20140307174037

Actually, the answer to all of this is simple: Sonic and Physics have never met.

Sonic wind is just him spinning around fast enough to create a tornado. The boost attack is powered by ring energy not wind. Granted, Sonic does have some wind manipulation, but not aero kineses or anything. He's just fast and too cool for gravity.