Abstract: The invention discloses a method of steering a machine, in particular an agricultural machine, on a predetermined route, where, by means of an actual position detecting means, the actual position of the machine is detected and is, by means of a comparator, compared to a desired position, wherein, if there is a difference between the actual position and the desired position exceeding a certain quantity, control commands are transmitted to the machine to return same to the predetermined route on a return way, wherein, according,to the invention, an optimum return way is determined in consideration of the predetermined route which still has to be traveled in the further course and corresponding control commands are transmitted to the machine, which return the machine to a desired position of the predetermined route on the optimum return way.

Abstract: Process for the autonomous positional control of guided missiles, which are to be launched from a carrier plane, but without the cooperation thereof, wherein data on the instantaneous position of the guided missile, as well as flight and target data are fed into a computer of the guided missile already on the ground. The initial data fed into the computer are continually updated with changing values from the inertial navigation and additional navigational aids and are further calculated to achieve autonomous flight guidance and self-guiding of the missile. An uninterruptible power supply of the guided missile is maintained beginning from the moment of data reception.