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Part 1: Document Description
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Citation |
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Title: |
Mass Estimation of Folding Wings |
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Identification Number: |
doi:10.7910/DVN/T56NM9 |
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Distributor: |
Harvard Dataverse |
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Date of Distribution: |
2024-05-25 |
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Version: |
1 |
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Bibliographic Citation: |
Scholz, Dieter, 2024, "Mass Estimation of Folding Wings", https://doi.org/10.7910/DVN/T56NM9, Harvard Dataverse, V1 |
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Citation |
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Title: |
Mass Estimation of Folding Wings |
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Identification Number: |
doi:10.7910/DVN/T56NM9 |
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Authoring Entity: |
Scholz, Dieter (Hamburg University of Applied Science) |
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Date of Production: |
2024-05-22 |
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Software used in Production: |
Excel |
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Distributor: |
Harvard Dataverse |
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Access Authority: |
Scholz, Dieter |
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Depositor: |
Scholz, Dieter |
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Date of Deposit: |
2024-05-22 |
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Series Name: |
Digital Library - Projects and Theses - Prof. Dr. Scholz |
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Holdings Information: |
https://doi.org/10.7910/DVN/T56NM9 |
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Study Scope |
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Keywords: |
Engineering, Luftfahrt, Aeronautics |
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Topic Classification: |
Aerospace |
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Abstract: |
Purpose – Review of mass increase of folding wings applied to passenger aircraft. --- Methodology – Data is obtained from literature (Yarygina and Popov). Data is reworked to build new, simple equations. --- Findings – Wing folds on passenger aircraft are intended to reduce wingspan at the gate. This keeps new, more efficient large-span aircraft in the original wingspan category according to the ICAO Aerodrome Reference Code. A wing fold cuts off part of the wing. The structural loads in the cut are larger if the cut is further inboard. A wing fold at the tip (is basically no fold and) adds no mass. The additional mass of a wing fold increases in good approximation linearly from tip to root. A wing fold at half-span position increases wing mass by about 33%. A one-sided fold is possible. A one-sided fold e.g. 20% from the tip has the same wing mass increase as a fold on both sides 10% from the tip (resulting in the same remaining span after folding). Stowage of an unsymmetrical aircraft with a one-sided fold is more complicated but one such fold may be mechanically simpler than two. --- Research Limitations – Calculating a fold more inboard than 32% of half span is extrapolating given data. --- Practical Implications – Approximating wing mass increase due to a fold can be estimated easily. The equations can be used in a spreadsheet for aircraft design optimization. |
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Kind of Data: |
Program, Data |
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Methodology and Processing |
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Sources Statement |
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Data Access |
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Other Study Description Materials |
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Related Publications |
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Citation |
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Title: |
SCHOLZ, Dieter, 2024. Mass Estimation of Folding Wings. In: Society of Allied Weight Engineers (SAWE), 83rd International Conference on Mass Properties Engineering. Online, 20-22 May 2024. |
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Bibliographic Citation: |
SCHOLZ, Dieter, 2024. Mass Estimation of Folding Wings. In: Society of Allied Weight Engineers (SAWE), 83rd International Conference on Mass Properties Engineering. Online, 20-22 May 2024. |
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Label: |
Mass_Estimation_of_Folding_Wings.xlsx |
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Notes: |
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |