  The wave-driven rotating torus (WDRT) is a recently proposed fusion concept
where the rotational transform is provided by the E x B drift resulting from a
minor radial electric field. This field can be produced, for instance, by the
RF-wave-mediated extraction of fusion-born alpha particles. In this paper, we
discuss how macroscopic force balance, i.e. balance of the thermal hoop force,
can be achieved in such a device. We show that this requires the inclusion of a
small plasma current and vertical magnetic field, and identify the desirable
reactor regime through free energy considerations. We then analyze particle
orbits in this desirable regime, identifying velocity-space anisotropies in
trapped (banana) orbits, resulting from the cancellation of rotational
transforms due to the radial electric and poloidal magnetic fields. The
potential neoclassical effects of these orbits on the perpendicular
conductivity, current drive, and transport are discussed.
