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This isn't true any more. The vast majority of commercial flights navigate with GPS, and follow GPS waypoints with the AP. They are so accurate that internati
by parsimo2010 7y ago
This isn't true any more. The vast majority of commercial flights navigate with GPS, and follow GPS waypoints with the AP. They are so accurate that international flights across the ocean apply SLOP (strategic lateral offset procedure) to the route so they don't run into each other.
- outworlder 7y ago> The vast majority of commercial flights navigate with GPS Citation needed. Which planes? Can you even take off without configuring your INS? Are the instruments slaved to the GPS system now?
- parsimo2010 7y agoCitation not needed. I'm a pilot. Inertial systems provide attitude and heading information, but is only a backup for navigation. INS cannot deliver the required navigational performance and is only used to cross-check GPS and to provide a backup in case GPS fails.