dihedral angle

American  

noun

Geometry.

1. the angle between two planes in a dihedron.

2. dihedron.

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Etymology

Origin of dihedral angle

First recorded in 1820–30

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Example Sentences

See Examples For:

dihedral angle

Generally speaking, however, the machines of the 1909-1912 period relied for what automatic stability they had on the principle of the dihedral angle, or flat V, both longitudinally and laterally.

From A History of Aeronautics by Evelyn Charles Vivian

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

From The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force by Sir Walter Alexander Raleigh

He had no ailerons nor wing-warping mechanism, but for lateral balance depended on the dihedral angle of the wings and upon suitable movements of his weight or of the vertical rudder.

From A History of Aeronautics by Evelyn Charles Vivian

The Dihedral Board.—Another method of securing the dihedral angle, and also the angle of incidence, is by means of the dihedral board.

From The Aeroplane Speaks Fifth Edition by H. (Horatio) Barber

The main plane is built upon four transverse spars of ash, set at a slight dihedral angle, two being placed on each side of the central bamboo.

From Flying Machines: construction and operation; a practical book which shows, in illustrations, working plans and text, how to build and navigate the modern airship by Octave Chanute

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