I was chatting with friends about a plane that could fly backwards as well as it flies forwards, led me to wondering about an airfoil for such a thing. Of course, there are airfoils commonly used in modelling that could work going backwards, flat plates for example, but is there an airfoil shape which is symmetrical front to back and has a centre of pressure, the point through which all lift appears to act, very close to 50% chord?

Of course, there are many other things to consider for such a plane, but can we just talk about the airfoil for starters.

Cheers from the Barfly.