Aeronautics and astronautics – Aircraft sustentation – Sustaining airfoils
Patent
1977-08-05
1978-08-22
Kelmachter, Barry L.
Aeronautics and astronautics
Aircraft sustentation
Sustaining airfoils
B64C 2100
Patent
active
041084039
ABSTRACT:
An airfoil tip is constructed to droop downward and extend aft of the trailing edge of the air foil structure and to include air foil configuration both chordwise and spanwise with camber in both the chordwise and spanwise directions and further including a vortex opposing twist in the chordwise direction.
REFERENCES:
patent: 2123096 (1938-07-01), Charpentier
patent: 3411738 (1968-11-01), Sargent
patent: 3974986 (1976-08-01), Johnstone
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