Quiz: Do You Know What These 5 Uncommon Enroute Chart Symbols Mean?

Good luck!

1. 1) What does the blue ‘8000G’ altitude mean?

   This is an RNAV/GPS MEA. The regular directional MEAs are at higher altitudes, because they need to guarantee adequate ground-based NAVAID reception along the route.

   This is an RNAV/GPS MEA. The regular directional MEAs are at higher altitudes, because they need to guarantee adequate ground-based NAVAID reception along the route.

2. 2) Why is the HEFIN intersection a black triangle?

   When the fix is filled in with black, it means that it’s a compulsory reporting fix. If you were in a non-radar environment, you would report crossing the fix to ATC.

   When the fix is filled in with black, it means that it’s a compulsory reporting fix. If you were in a non-radar environment, you would report crossing the fix to ATC.

3. 3) Why does the Concorde VOR have a (T) next to its name?

   The (T) means it’s a terminal VOR, which has a much lower service volume than Low or High VORs. Terminal VORs have a service volume from 1,000-12,000 feet AGL up to a radial distance of 25 NM.

   The (T) means it’s a terminal VOR, which has a much lower service volume than Low or High VORs. Terminal VORs have a service volume from 1,000-12,000 feet AGL up to a radial distance of 25 NM.

4. 4) What’s the minimum altitude you could cross the SOLED fix on V201 when you’re flying south?

   The MCA (Minimum Crossing Altitude) is 8,400 MSL when flying south, as you can see on the chart.

   The MCA (Minimum Crossing Altitude) is 8,400 MSL when flying south, as you can see on the chart.

5. 5) Why is the Las Vegas VOR frequency of 116.9 underlined?

   The underline means no voice is transmitted on 116.9, so if you were contacting Flight Service, you couldn’t hear them on this frequency.

   The underline means no voice is transmitted on 116.9, so if you were contacting Flight Service, you couldn’t hear them on this frequency.