Y-axis

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Related to Pitch Axis: yaw axis

Y-ax·is

a cephalometric indicator of the vertical and horizontal coordinates of mandibular growth expressed in degrees of the inferior facial angle formed by the intersection of the sella-gnathion plane with the Frankfort horizontal plane.

Y-ax·is

(aksis)
Cephalometric indicator of vertical and horizontal coordinates of mandibular growth expressed in degrees of inferior facial angle formed by intersection of the sella-gnathion plane with the Frankfurt horizontal plane.
References in periodicals archive ?
Error for the control of both the pitch and roll axes was reduced by practice until the joint criterion was met, but 95% of the subjects mastered control of the roll axis first and then achieved criterion performance on the pitch axis. The ratio of the number of trials to achieve criterion on the pitch axis to the number needed to master the roll axis was used to show changes of this behavior across the delay and compensation conditions.
Takeoff was aborted after discovering the control yoke pitch axis was locked.
In the bargain, somehow, the airplane was becoming hard to control in the pitch axis. I couldn't figure it out, and was lighting the airplane simply to maintain altitude.
Depending on how stable the airplane is in its pitch axis, it may naturally pitch down, without pilot intervention; if it's unstable, its pitch may not change.
Most general aviation airplanes show good stability in the yaw axis, a little less in the pitch axis and very little in the roll axis.
The airplane's speed affects how much downforce is generated, and how stable the airplane is in the pitch axis.