What are the unique aerodynamic characteristics of delta wings?

Delta wings exhibit unique flow physics: At moderate to high AOA, leading edge vortices form creating additional vortex lift, enabling sustained flight at angles that would stall conventional wings (40+ degrees). Characteristics include: low aspect ratio with high induced drag at subsonic speeds, excellent supersonic performance, large wing area for low wing loading, no tip stall tendency, and high CLmax at the expense of high drag. The vortex lift breakdown at high AOA causes sudden loss of lift. Delta wings are used on Concorde, Mirage, and F-106.