The invention is an actuator assembly for actuating a door or aerodynamic
surface of an aircraft. In detail, the invention includes a housing
having first and second ends and a longitudinal axis. The housing center
portion further includes first and second helical slots extending along
the longitudinal axis. A cam follower, having first and second ends, is
movably mounted in the center portion, the cam follower movable along the
longitudinal axis of the housing. An actuator is provided for actuating
the cam follower in first and second directions along the longitudinal
axis. A bolt assembly, having first and second ends, is mounted through
the cam follower with the first and second ends thereof extending into
the first and second helical slots. First and second bearings are mounted
to the first and second ends of bolt assembly such that the first and
second bearings are movably mounted in the first and second helical
slots. An actuation rod has its first end in the form of a clevis with
first and second lugs movably connected to the first and second ends of
the bolt assembly.