It has been a while since I posted anything here. This is a bit dated, but new to me. I found it udderly fascinating. Someone used computational fluid dynamics to determine the cowefficients of lift and drag. I suppose if you use a cattlepult for launching, it will fly for sure.

https://oppositelock.kinja.com/the-aerodynamic-efficiency-of-a-cow-1728510063

https://oppositelock.kinja.com/the-aerodynamic-efficiency-of-a-cow-1728510063