Aircraft comprising an airframe having a fuselage, at least two fixed wing
sets. A first fixed wing set of the fixed wing sets is positioned closer
to a forward end of the fuselage than a second fixed wing set and the
second fixed wing set is positioned closer to the aft end of the fuselage
than the first fixed wing set. The aircraft includes a power plant
mounted on the airframe and at least two rotor wings rotatably mounted on
the airframe. Each rotor wing has a plurality of blades extending outward
from a central hub to blade tips. The blade tips of the rotor wings
circumscribe respective circles centered on the corresponding central
hubs during rotation of the rotor wings and each fixed wing set is
located generally below the circumscribed circle of only one of the rotor
wings. The aircraft includes a rotation mode and a fixed mode.