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55-10
STABILATOR – DESCRIPTION AND OPERATION
55-10 STABILATOR
DESCRIPTION AND OPERATION
The horizontal tail is an all-moving type, that is, the stabilizer and elevator form a single,
uniform plane called stabilator that rotates about an axis normal to fuselage at the desired
pitch setting.
The stabilator structure is made-up by an aluminum spar to which a series of ribs are riveted.
It is covered by aluminum panels.
A trim tab provides stick force adjustment and longitudinal compensation through an electric
actuator controlled by pilot. Tab is split in two parts interconnected at the support brackets
and attached to the stabilator through four external hinges that allow for easy inspection.
Figure 1. - Stabilator