Better balanced canard airplane with forward engine

Details Better balanced canard airplane with forward engine Better balanced canard airplane with forward engine

2006-10-17

2006-10-17

Swiatek, Robert P. (Department: 3643)

Aeronautics and astronautics

Aircraft sustentation

Sustaining airfoils

CD12S332000

Reexamination Certificate

active

07121503

ABSTRACT:
To optimize the performance of a canard airplane with an engine in front, the canard is mounted forward of its location in existing canard airplanes. Specifically, the canard is located with its leading edge significantly ahead of the firewall. This allows the canard to be mounted higher on the fuselage, providing aerodynamic improvements. The engine may be mounted to, or near, the canard spar, simplifying the structure. The added leverage of the further-forward canard allows the wing to be moved forward also. This makes possible a low wing under the occupants of the airplane. Efficient loading of the lifting surfaces is maintained by using a high aspect ratio canard.

REFERENCES:
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patent: 5454530 (1995-10-01), Rutherford et al.
patent: 5992792 (1999-11-01), Arnason
patent: 6422518 (2002-07-01), Stuff et al.

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