B - Operations – Transporting – 64 – C
Patent
B - Operations, Transporting
64
C
244/23
B64C 29/00 (2006.01) B64C 39/06 (2006.01)
Patent
CA 1120452
ABSTRACT OF THE DISCLOSURE An annular wing particularly suited for use in support- ing in flight an aircraft characterized by the absence of direc- tional stabilizing surfaces. The wing comprises a rigid annular body of a substantially uniformly symmetrical configuration cha- racterized by an annular positive lifting surface and cord line coincident with the segment of a line radiating along the surface of an inverted truncated cone whereby a decalage is established for the leading and trailing semi-circular portions of the body, relative to instantaneous line of flight, and a dihedral for the laterally opposed semi-circular portions of the body, relative to the line of flight, the direction of flight and climb angle or glide slope angle being established by selectively positioning the center of mass of the wing ahead of the aerodynamic center along a radius coincident with an axis for a selected line of flight.
321238
Fetherstonhaugh & Co.
National Aeronautics And Space Administration
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