I understand that aircraft with canards are designed so that they pitch down when at a high angle of attack. The canard is designed to stall before the main wing, thus the canard produces no lift force, and pitches down around the CG, preventing the main wing from reaching its stall angle.

How are the canards designed to stall first, is it aspect ratio, sweep angle, cross section? The Long-EZ has a straight canard and a tapered, swept main wing yet some jet canards are as swept as the main wing.

I’m looking at applying this idea to a RC model aircraft to give it better performance. Just an amateur rc hobbyist.