Hi there,
thank you for your answers guys!
But i don't get one thing. If the strakes are there to reduce the flpa down stall speed then why is there this difference between A319-320-321?
Because it looks to me that the construction of the wing and of the engine is the same for all the types. So the air stream, i suppose, it should be the same around the engine's nacelle and the wing. Or? So again why the need of 2 different strakes?