  UAVs are becoming versatile and valuable platforms for various applications.
However, the main limitation is their flying time. We present BEAVIS, a novel
aerial robotic platform striking an unparalleled trade-off between the
manoeuvrability of drones and the long lasting capacity of blimps. BEAVIS
scores highly in applications where drones enjoy unconstrained mobility yet
suffer from limited lifetime. A nonlinear flight controller exploiting novel,
unexplored, aerodynamic phenomena to regulate the ambient pressure and enable
all translational and yaw degrees of freedom is proposed without direct
actuation in the vertical direction. BEAVIS has built-in rotor fault detection
and tolerance. We explain the design and the necessary background in detail. We
verify the dynamics of BEAVIS and demonstrate its distinct advantages, such as
agility, over existing platforms including the degrees of freedom akin to a
drone with 11.36x increased lifetime. We exemplify the potential of BEAVIS to
become an invaluable platform for many applications.
