This short course takes an in-depth look at the IFR Low Altitude Enroute Charts. Chart symbols are illustrated. Airway terms, such as Minimum Enroute Altitude (MEA), Maximum Authorized Altitude (MAA), Minimum Obstruction Clearance Altitude (MOCA), and Minimum Off Route Obstruction Clearance Altitude (OROCA) are illustrated and explained. Intersection terms including Minimum Reception Altitude (MRA) and Minimum Crossing Altitude (MCA) are also illustrated and explained.
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