Hi, I was looking for more information for my little badminton research project when I came upon this site. http://grandmac.calpoly.edu/docs/science/physics/terminal_velocity.html Check out what they say about badminton!
I have since found the very extensive study by Dr Alison Cooke (see the other thread) on the shuttlecock's terminal velocity. Was commenting on the author's characterization of badminton...