Airplane Update #8

These past few days I've been fooling around with the input parameters of the ANSYS airplane sim to see if I can resolve the tail vortices that appear in the trailing edge, but there weren't any major improvements. So, I thought about trying to change the geometry of the plane and whether adding an angle of attack on the horizontal stabilizers (which are currently level) would possibly eliminate the vortices. After doing a bit of research, I found this nice post about the topic that discussed how to figure out the angle of air downwash generated by the wings, which dictates how much smaller the horizontal tail's angle of attack will be relative to the wing in order to achieve static stability. Plugging in the lift coefficient of 0.8 and aspect ratio of 10, the downwash angle is calculated to be 2.92°. Subtracting this from the wing's angle of attack of 8° the horizontal stabilizer's angle of attack should be 5.08°. I'll update the geometry this weekend and post a new sim as well.