Methods and devices are provided for controlling movement of a working end of a surgical device configured to be introduced into a body. A functional module is provided by which a desired wheel torque course is determined for reaching the desired vehicle velocity, the course at least in a main section being proportional to the reciprocal value of the vehicle velocity and which is outputted to potential regulating systems for the conversion of the desired wheel torque course. An elongate support frame supports the printhead modules and a connector arrangement is supported by the end plate. 0 dlg; and a second elastomeric copolymer of propylene with at least one alpha-olefin of formula H2C\u2550CHR, where R is H or a C2-6 linear or branched alkyl, optionally containing 0. According to an embodiment of the invention, the stanchion has a groove having a depth equal to a thickness of the bench for receiving the bench therein while maintaining a flush surface across the stanchion and the bench to allow a user to slide thereacross. The radar system comprises an antenna mounting apparatus coupled to the aircraft, and an antenna rotatably coupled to the mounting apparatus.