A few more.
http://i559.photobucket.com/albums/s...RedBull2-1.png
The body of the plane is sharp on close up,but the wings are not(wing flex or the plane oscilliating?).
http://i559.photobucket.com/albums/s...IFTH/Duo-1.png
http://i559.photobucket.com/albums/s...eitling3-1.png
The last two are sharp(used higher shutter speeds).