Complex sentence: A variation on the direct autotow is the "reverse pulley" method in which the truck drives towards the glider that it is launching with the cable passing around a pulley at the far end of the airfield, with an effect similar to a winch launch.
Split into simpler sentences: A variation on the direct autotow is known as the "reverse pulley" method. The cable passes around a pulley at the far end of the airfield, resulting in an effect similar to that of a winch launch.