On the "tractors," as the airplanes having the propellers in front are called, the machine-guns are synchronized so as to fire between the whirling blades.
"Italy at War and the Allies in the West"
E. Alexander Powell
The words were few, merely computed associations keyed to understanding, and with them were perfectly and intimately synchronized fragments of emotion and vision, softly washing over the surface of his mind.
"The Short Life"
Francis Donovan
By that time I had the hat synchronized with the fan.
"Epistles-from-Pap-Letters-from-the-man-known-as-The-Will-Rogers-of-Indiana"
Durham, Andrew Everett