Cathedral

Negative Dihedral, Anhedral ,The wings of an airplane, as they are viewed from the front, are not usually straight; they normally angle downward from the center. However, when maneuverability is more important than stability, as it is on some military fighters and acrobatic airplanes, the wings are set with negative dihedral (cathedral). The wings angle downward from the center. Cathedral decreases the stability of an airplane and makes it more maneuverable.