Before revision: <ref> Plotting LOPs eight miles high - Ocean Navigator<Plotting LOPs eight miles high - Ocean Navigator > Before the advent of sophisticated flight management systems, Carousel IV allowed pilots to automate navigation of an aircraft along a series of waypoints that they entered via a control console in the cockpit.
After revision: Plotting LOPs eight miles high - Ocean Navigator<Plotting LOPs eight miles high - Ocean Navigator Before the advent of sophisticated flight management systems, Carousel IV allowed pilots to automate navigation of an aircraft along a series of waypoints that they entered via a control console in the cockpit.