Can you explain how a forward swept wing affects stablity?
It is well known (if I’m not making this up) that a highly backward swept wing is more stable in yaw and more inherently structurally pitch incidence stable than a forward swept wing. The yaw reason is to me, obvious (if I’m way off the mark, be kind, I’m an electrical type). I believe it has to do with apparent airflow frontal area changes in yaw which feed back negatively. I wonder if pitch has something to do with flow patterns, or the positively fedback incidence changes that occur with angle of attack changes. From : Don Stackhouse You’re right, the aft-swept wing shows more apparent frontal area on the forward-yawed side (in other wards, the more foward wing stucks out further to the side), causing a drag increase on that side that tries to yaw the aircraft straight again. On the other hand, the forward-yawed wing also has more effective span, which tends to reduce its induced drag, som sometimes you can get some weird instabilities from that. Most of the time, though, that first
