I tryed the smooth thing but to no avail so I tried to retrace my steps stripped out all of the wing surface and re extruded then using extrude edge and then merge vertex ... at some point as i worked half the normals flipped .. so I had to set normals to face ... now tho when i try to subdivide to check how I am going Maya tells me to run clean with nonmanifold switched on ... how ever when i try this random verticies split see attached