4. Aeronautics and astronautics
  5. Aircraft sustentation
  6. Sustaining airfoils

Robert W. Hahl

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Lifting-fuselage/wing aircraft having an elliptical forebody

Aeronautics and astronautics – Aircraft sustentation – Sustaining airfoils
Patent

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Lifting-fuselage/wing aircraft having low induced drag

Aeronautics and astronautics – Aircraft sustentation – Sustaining airfoils
Patent

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Lifting-fuselage/wing aircraft having low induced drag

Aeronautics and astronautics – Aircraft sustentation – Sustaining airfoils
Patent

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