dihedraldaɪˈhi drəl
dihedral (adj)
English Definitions:
dihedral (Noun)
An angle between two plane surfaces
dihedral (Noun)
The upward slope of an aircraft's wing
dihedral (Noun)
The angle between pairs of chemical bonds separated by a third bond
dihedral (Adjective)
Consisting of, relating to or contained between two plane surfaces.
Dihedral
Dihedral angle is the upward angle from horizontal of the wings or tailplane of a fixed-wing aircraft. "Anhedral angle" is the name given to negative dihedral angle, that is, when there is a downward angle from horizontal of the wings or tailplane of a fixed-wing aircraft. Dihedral angle has a strong influence on dihedral effect, which is named after it. Dihedral effect is the amount of roll moment produced per degree of sideslip. Dihedral effect is a critical factor in the stability of an aircraft about the roll axis. It is also pertinent to the nature of an aircraft's Dutch roll oscillation and to maneuverability about the roll axis. Longitudinal dihedral is a comparatively obscure term related to the pitch axis of an airplane. It is the angle between the zero lift axis of the wing and horizontal tail. Longitudinal dihedral can influence the nature of controllability about the pitch axis and the nature of an aircraft's phugoid-mode oscillation. When the term "dihedral" is used by itself it is usually intended to mean "dihedral angle". However, context may otherwise indicate that "dihedral effect" is the intended meaning.
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"dihedral." Kamus.net. STANDS4 LLC, 2024. Web. 24 Apr. 2024. <https://www.kamus.net/english/dihedral>.
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