after reading the "variable" stat line i am figuring why would anybody fly with the wings forward in landing mode?? There must be some kind of advantage i am missing?
Did you read the card? Landing mode lets you do a 0 k-turn.
Which you'll have telegraphed to your opponent the turn before given the card is flipped after executing a move. Worse still, you're down to 1 agility for that turn too. Sure, it'll come in handy in the event you've goofed your flying near the board edge, but I don't think it will come into play all that often.
Or you telegraph the 0-K and then end up doing something completely different. Even without the K-Turn the U-Wing has a decent enough dial. Just having it available is nice.