14, 1946. [Class 4] In an aircraft with folding wings, the movable portions 5 are connected to the fixed portions 4 by hinges whose axes X-X1 are inclined and located in the longitudinal plane of the main spars 6, 8 of the wings. In the form shown, the hinge axes converge downward...
United States Patent USD725577 Note: If you have problems viewing the PDF, please make sure you have the latest version ofAdobe Acrobat. Back to full text
Lockheed Martin’s proposed design boasted a takeoff weight of 1.4 million pounds (635 metric tonnes) and was powered by four powerful engines. The aircraft featured an impressive wingspan of 282 feet (85 meters), with folding wingtips that reduced the span to 211 feet (64 meters), matching ...
An aircraft with wings that may be fixed for flight and which swing and fold for storage and for maneuvering and otherwise operating the aircraft while not in flight is disclosed. An embodiment includes wings which swing backwards and through the body of the aircraft and then fold by drooping ...
It would be impossible to design an aeroplane (with the same engine as the latest single‐seater fighters) that could carry a crew of two, together with most elaborate radio, be fitted with deck‐arrester gear and folding wings, ... None - 《Aircraft Engineering & Aerospace Technology》 被...
A folding wing morphing aircraft should complete the folding and unfolding process of its wings while in flight. Calculating the hinge moments during the morphing process is a critical aspect of a fo...
This invention relates to aircraft, method of folding aircraft wings, and the improvement of wing folding mechanisms. An airplane both in storage and for contemplated road use suffers from one outsta
277 Abstract Abstract:When the wings of folding-wing-aircraft unfolding in the air,the status of the unfolding device are changeable and the forces on the wing are complicated,these for the unfolding device put foreword a higher technical requirement.In this paper,the expansion process and the fo...
NDTSMC can restrain the uncertainty of the folding-wing aircraft and complete the attitude tracking control. Simulation results show that the control precision and the robustness of the morphing aircraft are improved by NDTSMC, with a better chattering elimination. It is also shown that the folding...
received.In addition,a small-size plane model with foldable wing is made to verify the design.Results show that the wing has the ability of steadily folding to any given angle in the range from 0 to 90,and the measurement algorithm is precise with the error of fold angle being acceptable....