Manual aerodynamic optimization of an oblique flying wing

We use a manual method and an advanced geometry generator to optimize a large wing flying obliquely at M = >/2. These include the informed, but manual, design of the airfoil sections, the choice of wing planform and airfoil blending of these sections to create a wing. A manual tailoring of the wing planform and bending are used to provide a nearly elliptic load. The lift coefficient and sweep are varied sequentially to arrive at an optimum inviscid design. Considering this wing to be a flat plate, the viscous drag is computed. The altitude at which the wing enters cruise is selected to maximize L/D. This results in an Oblique Flying Wing with a viscous ML/D of 23.5, which compares well with the linear theory optimum of 25.2.