How does dihedral effect the stability of a flying wing?
I have a question concerning adding dihedral on a HLG flying wing. I have built a 42″ flying wing for use in HLG and added about 15 deg dihedral. The wings are swept back, but not near as much as a Zagi. Since I did not know where to balance the plane, I left the battery pack exposed and used tape to hold it down for the first test flights. This plane is very unstable in it’s present state. I do not have tip stabs installed as yet, because I thought that the dihedral would eliminate the need to do so. Also do you know the formula for finding the CG on a swept wing? At present, I am just guessing as were it should go. All the flying wings that I have seen do not have dihedral. Is this for a reason? From : Don Stackhouse Jeff, those are excellent questions. It appears that your model has several problems. It sounds like its pitch stability is very marginal, which is the result of a too-far-aft C/G and/or not enough sweep. On most flying wings, pitch stability comes from either a reflexed
