ng such movement to the lateral marginal
portions of the aeroplanes, substantially as described.

3. In a flying machine, a normally flat aeroplane having lateral
marginal portions capable of movement to different positions above or
below the normal plane of the body of the aeroplane, such movement being
about an axis transverse to the line of flight, whereby said lateral
marginal portions may be moved to different angles relatively to the
normal plane of the body of the aeroplane, and also to different angles
relatively to each other, so as to present to the atmosphere different
angles of incidence, and means for simultaneously imparting such
movement to said lateral marginal portions, substantially as described.

4. In a flying machine, the combination, with parallel superposed
aeroplanes, each having lateral marginal portions capable of movement to
different positions above or below the normal plane of the body of the
aeroplane, such movement being about an axis transverse to the line of
flight, whereby said lateral marginal portions may be moved to different
angles relatively to the normal plane of the body of the aeroplane, and
to different angles relatively to each other, so as to present to the
atmosphere different angles of incidence, of uprights connecting said
aeroplanes at their edges, the uprights connecting the lateral portions
of the aeroplanes being connected with said aeroplanes by flexible
joints, and means for simultaneously imparting such movement to said
lateral marginal portions, the standards maintaining a fixed distance
between the parts which they connect, whereby the lateral portions on
the same side of the machine are moved to the same angle, substantially
as described.

5. In a flying machine, an aeroplane having substantially the form of a
normally flat rectangle elongated transversely to the line of flight,
in combination which means for imparting to the lateral margins of said
aeroplane a movement about an axis lying in the body of the aeroplane
perpendicular to said lateral margins, and thereby moving said lateral
margins into different angular relations to the normal plane of the body
of the aeroplane, substantially as described.

6. In a flying machine, the combination, with two superposed and
normally parallel aeroplanes, each having substantially the form of a
normally flat rectangle elongated transversely to the line of flight,
of upright standards connecting the edges of said aero