Description / Abstract:
An industry survey has been completed to determine the incidence
of jam and excessive backlash in rotary and linear mechanical
actuators subject to "primary flight control like" duty cycles. The
data is valuable for understanding how existing mechanical
actuators behave in service, identifying areas for potential
improvement and possibly being used as a reference to support
future primary flight control system trade-off studies.
Purpose
The purpose of this information report is to compile the results
of the survey so the data can be made available to the industry as
an aid for those specifying, designing, and certifying EM
actuators, as well as those developing reliability and safety
analyses and reports for these actuators
Field of Application
This report is written with commercial aircraft flight control
system application in mind but the data presented is equally
applicable to other aircraft systems or other aircraft
categories.