As an MHD accelerator works only with an electrically conductive medium, some of the incoming microwaves are also diverted within the Lightcraft through a series of transparent windows and mirror sections, then re-emitted in the air near the electrodes of the MHD accelerators located around the rim. The air becomes ionized in these places, allowing MHD interaction of Lorentz forces to actively control the airflow around a discoidal shape that otherwise (i.e. passively) has very bad aerodynamical properties due to its largest surface, a flat plate, being perpendicular to the flow.