dihedral angle

In determining the center of gravity, the bird was frozen in the soaring position, its wings making a dihedral angle of 150.

At this point in Book VI it is customary to introduce the dihedral angle.

The reason is that the flexible covering will be bowed back by the wind, forming an approximate "dihedral angle."

The wings were fixed at a considerable dihedral angle, and the engine was a twenty-four horse-power Antoinette.

But in some machines to-day a modified dihedral angle is used, and with satisfactory results.