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Continuous optimization of wing/fuselage-angle by a rotatable wing, activated and controlled by special flight computer software

IP.com Disclosure Number: IPCOM000240592D
Publication Date: 2015-Feb-10
Document File: 6 page(s) / 164K

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The IP.com Prior Art Database

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10090: IP.COM

Abstract

Abstract rotatable wing

It is an idea to perform a continuous optimization of wing/fuselage-angle by a rotatable wing, activated and controlled by special flight computer software.

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This is the abbreviated version, containing approximately 39% of the total text.

Page 01 of 6

Abstract rotatable wing

It is an idea to perform a continuous optimization of wing/fuselage-angle by a rotatable wing, activated and controlled by special flight computer software.

Continuous optimization of wing/fuselage-angle by a rotatable wing, activated and

controlled by special flight computer software

Continuous optimization of wing/fuselage-angle by a rotatable wing activated and controlled by special flight computer software.

Actual Aircraft Design

At actual civil aircrafts the wing is totally fixated to the fuselage. This wing positioning bases on theoretical analyses and wind tunnel, and reflects the cruise-flight only.

Divergences to this claimed positioning are:

- Difference in the wing deflection between theory and reality

- Shifting of the CoG during whole flight.

- Changing wing torsion and bending during whole flight by changing fuel mass
- Changing air density

- Changing environmental impacts (rain)

- Dirtiness

- Changing of ram-point in the first minutes of start and climb

- Bad yaw

All these small divergences which are continuously changing during whole flight cannot be compensated, and these divergences worsen the fuel consumption. For the start additional Take-off-devices of the L.E. are needed, which increases the drag.

Aircraft Design with Rotatable Wing

The entire wing-center-box from LH to RH is one part. It is rotatable connected to the fuselage in longitudinal direction. With this rotatable option it is possible to align the wing in smallest nuances to the respective flight status and environmental conditions (see Figure1).

For optimization of the wing alignment smallest difference-angle are adequate. It is assumed that this is max 2. Eventually a start without Take-off devices or simplified only could be of interest if it is possible to rotate the wing about 5.´

Advantage of a Rotatable Wing

 Continuous fuel flow detection in relation to the positioning of wing and all control surfaces, etc. allows an optimized flight in every flight phase to get minimum fuel consumption finally.

 Every laminar wing with the ambitious "minimum drag via long time" gets profit with this technic.

 When such a wing can be rotated in an extended position a start without slats or reduced take-off-devices, could maybe realized.

Design Features (Figure1)


Page 02 of 6

As mentioned above the wing-center-box is one part from LH to RH. Central-ribs are inside the wing-center-box which lays parallel to the fuselage skin, as well as they are positioned in the cross-point of fuselage- floor-beam and fuselage-spar. Via these central-ribs the wing is rotatable connected with the fuselage The rotation around X (spanwise) takes place in point "A" (Hinge), as well as the loads in X,Y,Z will be picked up in this point. Hydraulic jacks are installed in point "B" accomplishing the rotation. These hydraulic jacks carry tension and compression loads only.


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Controlling the Wing Rotation

Two different...