Stilton,
The Tornado wings move. Although they can be set anywhere between fully forward (25 deg sweep) and fully aft (67 deg sweep) only three positions are released: 25 (take off and landing) 45 (everything else) and 67 (airshows and running away).
Because the wings might get stuck in any position approaches are practiced in 45 and 67. As you might imagine, 67 gives a very high approach speed and alpha.