Improved closed wing aircraft design and configuration with three wings on either side of the fuselage wherein at least one closed frame is established between the 1st wing (65) and the 2nd wing (67), by using at least one bracing entity. A separate closed frame is established between the 2nd wing (67) and the 3rd wing (71), by using at least one bracing entity. Each of said closed frames defines its own aerodynamic channel. The framework is strong and stiff, the mutually supported parts level out the stress, the load per wing is low. The fuselage is lifted in three points. It is possible to build a very large aircraft of composite materials. The Aspect Ratio is high and the wingspan is relatively short but there are embodiments wherein the 3rd wing has an extended folding tip section.
METHODS FOR IMPROVEMENTS OF THE CLOSED WING AIRCRAFT CONCEPT AND CORRESPONDING AIRCRAFT CONFIGURATIONS
VERFAHREN FÜR VERBESSERUNGEN DES GESCHLOSSENEN FLÜGELKONZEPTS EINES FLUGZEUGS UND ENTSPRECHENDE FLUGZEUGKONFIGURATIONEN
PROCÉDÉS POUR DES AMÉLIORATIONS DE LA CONCEPTION D'AÉRONEF À AILES EN ANNEAU ET CONFIGURATIONS D'AÉRONEF CORRESPONDANTES
2025-03-26
Patent
Electronic Resource
English
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