Folding wings

Folding wings

Foundations of fleet planning

Published in Paul Clark, Buying the Big Jets, 2017

With Airbus forging ahead with their very promising A350 strategy, it was clear that a solution needed to be found. That solution turned out to be a major revamp of the 777, involving a stretched fuselage, exclusive GE9X engines, new composite wings including folding wing tips, and an aerodynamic clean up. Boeing were also able to float some of the new technologies from the 787 into the 777X. The 777-8X and 777-9X can be considered both as competitors to the A350 as well as replacements for A340s and 747-400s.

Fabrication of solar energy UAV

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Journal Information

Published in International Journal of Ambient Energy, 2020

M. Saleem, E. Gopi, R. Ramesh Kumar

These UAVs could be carried in a briefcase, backpack, or the storage area of a personal vehicle. The ideal UAV would also deploy with little effort and remain deployed reliably during flight. Many larger folding wing aircrafts have relied on a complicated system of pin joints, swivels, hinges, cables, and locks in order to provide sufficient range of motion and stability for the folding wings (How, King, and Kuwata, 2004). Other applications like foldable fins for tube-launched missiles often rely on similarly complicated systems. With limited weight and space for UAVs, conventional rigid-body folding mechanisms have been even more difficult to achieve. In such cases, compliant mechanisms offer many potential advantage. Compliant mechanisms can be used to facilitate additional space and cost savings due to a potential reduction in part count and increased function-sharing among parts.

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