Top 10 IFR low level chart symbols
Different types of airport identifiers.
Airports with ILS localizers are easily recognized
The IFR system is saturated with flight routes. Understanding what these "V" airways are is helpful in decluttering a chart.
Compulsory and Non-Compulsory reporting points.
DME fixes and distances to indicators are helpful for some of the older aircraft naviagational equipment.
MEAs are the minimum altitude to meet obstacle clearance requirements, assure a satisfactory navigational signal, and the identification of fixes on the airway.
A MOCA (denoted with an asterisk) provides obstacle clearance but removes continuous satisfactory navigational signals.
A VOR changeover point is a shifting point from one VOR to the next that assures reception from both VORs.
An OROCA will provide obstacle clearance assurance when flying off route path.
MCAs provide the lowest altitude when passing through a fix. These are notifications of a required ascent if higher than the route they are connected to.
Sporty’s Instrument Rating Course - Video: Planning with IFR En Route Charts
