B - Operations – Transporting – 64 – C
Patent
B - Operations, Transporting
64
C
B64C 5/08 (2006.01) B64C 23/06 (2006.01)
Patent
CA 2136000
The wing with the span (b) according to the invention has a main part (1), which has a substantially closed surface with respect to the flow (v) and is provided at its free end with an end section in the form of a wing grid. The wing grid has at least two parallel-staggered winglets (2). Such a wing grid as part of the wing span (b) takes over the intended profile cir- culation at the attachment point to the main part and subdiv- ides said circulation approximately uniformly over the winglets. Thus, the same lift is produced in the end section with at least two winglets. Thus, for the wing the circulation distri- bution is more complete and the induced resistance is decreased. An upper or lower limit for the action is obtained, as a function of whether as a result of the fixed wing grid for the entire wing a rectangular circulation distribution is produced or only for the part of the overall span replaced by the wing grid. Thus, for the wing with wing grid there is a correspon- ding reduction of the induced resistance as compared with a conventional wing without a wing grid for the same resulting aspect ratio.
La Roche Ulrich
Ridout & Maybee Llp
LandOfFree
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