I understand that sweeping a wing back reduces the component of velocity perpendicular to the wing and can allow it to travel at subsonic conditions, and reduce the formation of shock waves, even if the freestream velocity is greater. I am wondering if the same concept applies for a forward swept wing or if there are other factors to take into consideration?
The same rules apply for the forward sweep. But care should be taken since multiple problems can arise. For the forward sweep wing an outer part of the wing can be outside the mach cone of the nose. Also a shock is forming at the wing tip which will influence the other half of the wing (this is a difference in the flow field to the backward swept wing and introduces an interaction of both sides). An Advantage of forward swept wings is, that it is easier to achieve a smooth Crossection Gradient Distribution over the airplane (lower wave drag). This question is really nice! I was trying to find resources and couldn't find any! So any suggestions/corrections are welcome.