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Winglet Attach Fitting And Method For Attaching A Split Winglet To A Wing

A technology of attachment and wing, applied in the direction of wing adjustment, aircraft assembly, aircraft parts, etc., can solve problems such as complex operation, a lot of time placement, removal and replacement

Active Publication Date: 2014-10-22
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, conventional means for attaching winglets can require a significant amount of time to install, remove and replace
Additionally, conventional means for placing, removing, and replacing winglets creates a complex operation that can require partial disassembly of the wing at the winglet-wingtip junction in order to remove and reposition the winglet

Method used

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  • Winglet Attach Fitting And Method For Attaching A Split Winglet To A Wing
  • Winglet Attach Fitting And Method For Attaching A Split Winglet To A Wing
  • Winglet Attach Fitting And Method For Attaching A Split Winglet To A Wing

Examples

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Embodiment Construction

[0041] Referring now to the drawings, wherein the drawings are for purposes of illustrating various embodiments of the present disclosure, figure 1Shown is a perspective view of aircraft 100 having fuselage 102 . Fuselage 102 may include cabins for passengers and crew. Fuselage 102 extends from a nose at the front end of aircraft 100 to a tail 104 at the rear end of fuselage 102 . Tail 104 may include one or more empennage surfaces for directional control and stability of aircraft 100, such as vertical empennage 108 (e.g., vertical fins) and / or horizontal empennage 106 (e.g., horizontal stabilizers) . Aircraft 100 may also include a pair of wings 112 and one or more propulsion units. Each wing 112 may include a split winglet 298 mounted on the wingtip 114 . Each split winglet 298 may include an upper winglet 300 and a lower winglet 400 . The split winglet 298 may be mounted to the wingtip 114 using a winglet attachment accessory 150 as disclosed herein.

[0042] Advantag...

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PUM

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Abstract

A winglet attach fitting may include a wing attachment portion, an upper winglet attachment portion, and a lower winglet attachment portion. The upper winglet attachment portion may be coupled to the wing attachment portion and may be configured to support an upper winglet. The lower winglet attachment portion may be coupled to the wing attachment portion and may be configured to support a lower winglet. The wing attachment portion may be removably attachable to a wing tip using fasteners.

Description

technical field [0001] The present invention relates generally to wingtip devices, and more particularly to winglet attachment accessories for attaching split winglets to aircraft wings. Background technique [0002] Aircraft may include winglets on the wingtips to reduce the aerodynamic drag created by the aircraft's wings as they move through the air. The winglets effectively increase the length of the trailing edge of the airfoil, which expands the distribution of vortices dispersed by the trailing edge and wingtip. The redistribution of vortices along the trailing edge of the wing results in a significant reduction in induced aerodynamic drag, which improves aircraft performance. [0003] The winglet may be provided as a single winglet extending upwardly from the wingtip. The winglet may also be provided as a split winglet with upper and lower winglets extending upward and downward from the wingtip, respectively. The winglet must be coupled to the wing structure in a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C3/38
CPCB64C23/065B64F5/10Y10T29/49817Y10T29/49947Y10T29/49963B64C23/069Y02T50/10B64C5/08B64C3/58
Inventor P·维特D·D·小坎贝尔B·P·唐F·克列晓夫
Owner THE BOEING CO