Boston, Mass.-based AeroCopter is seeking
R&D funding for an extraordinarily dramatic
new design, the Mono Tiltrotor. The small,
single-engine turbine aircraft resembles a
pusher-prop airplane with short wings, but
that’s where normalcy in design ends. The tips
of the wings serve as pivot points for a pair of
stacked, counter-rotating rings measuring 27 ft.
in diameter. Attached to the disks are rotor
blades that tilt the rings for climbing and
turning. Power is transmitted via
electromagnets. For more
information