KENNEDY SPACE CENTER, FLA. - Workers in the Orbiter Processing Facility get ready to measure the alignment of the bearings on the rudder speed brake actuators sitting on the floor in the foreground. The actuators move an orbiter’s rudder, speed brake, elevons and main engines during flight.

KENNEDY SPACE CENTER, FLA. - Workers in the Orbiter Processing Facility get ready to measure the alignment of the bearings on the rudder speed brake actuators sitting on the floor in the foreground. The actuators move an orbiter’s rudder, speed brake, elevons and main engines during flight.

KENNEDY SPACE CENTER, FLA. - Workers in the Orbiter Processing Facility get ready to measure the alignment of the bearings on the rudder speed brake actuators sitting on the floor in the foreground. The actuators move an orbiter’s rudder, speed brake, elevons and main engines during flight.