Talk:Rainbow Dash/@comment-11498358-20140327090606/@comment-11467204-20140406234752

It's not that hard to prove when you do the math yourself. The sine of half of the angle of the Mach cone right before the sonic rainboom = the speed of sound over Dash's velocity right before the sonic rainboom. That Mach cone angle is 24 degrees, and her speed doubles after she hits the rainboom. Anyone with a calculator can figure out the rest.