Hi everyone. this is my first post. My head is still spinning from reading all of your posts in this topic. I came to the aerodynamic thread to find out more information about dihedral.
I am scratch building my first plane soon and I'm concerned about when and why you use dihedral. I was told that dihedral is important on a low wing aircraft for stability and it is very important for planes that have rudder only steering. so if I'm building a low wing aircraft with ailerons/flaperons do I need dihedral? and if I do need it, is there a formula for the angle?
thank you,
crankypants