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However, the studies above are all conducted on a single fan wing; with reference to the tandem wing aircraft [16] and tandem rotor helicopter [17], we proposed the tandem fan wing aircraft (two fan wings installed along the longitudinal body).
Finally, in 1903, he compiled all that he had previously worked out in terms of technology (1883-1886) and airfoil theory (1894-1895) and incorporated this into a tandem wing design tested initially in model scale.
* In 1904, John constructed the first man-size version of his Tandem Wing craft and made successful (manned and unmanned) flight experiments.
Scharpf and Mueller [4] conducted wind tunnel experiments on different tandem wing configurations, to investigate the influence on the tandem wing aerodynamic characteristics by the horizontal distance, vertical distance, and the decalage between the two wings.
Zhang and Yu [8] investigated the unsteady aerodynamics of an aircraft with tandem wing configuration in the morphing stage using CFD methods.
For the tandem wing configuration or the configuration with multiple-lifting surface, Phillips and Snyder [15] presented a numerical lifting-line method, which was based on the Prandtl's original model of a finite wing, to predict the forces and moments acting on a system of lifting surfaces.
In this paper, the main objective is to predict the section lift coefficient for the tandem wing configuration or multiple-lifting-surface system.
After it safely clears neighboring buildings, its tandem wings get tilted with eight thrusting propellers to continue flight like conventional airplane for more than 90 km.
After it safely clears neighbouring buildings, its tandem wings get tilted with eight thrusting propellers to continue flight like conventional airplane for more than 90 km.