IFR Chart Flashcards
Are all IAP airports shown on the low-altitude charts?
What about high altitude charts?
All IAP airports are shown on the low-altitude charts
Only airports with a minimum hard surface runway of 5000’ are shown on the high charts
Facilities shown on the low charts and are brown have a minimum hard surface runway length of what?
3000 ft
What is the longest runway length at OKC and how is it calculated?
If there was an ‘s’ next to it, what does that mean?
- It is calculated by the longest runway length to the nearest 100 ft with 70 ft as the diving point.
S means soft surface
What do these two symbols mean?
The ‘L’ only means lighting available
The ‘L’ with a circle means pilot controlled lighting
Are compass roses orientated to magnetic or true north?
Magentic north
What does the Mc Alester mean?
It is the controlling FSS’ name
What are the generic FSS frequencies?
How do you find a specific FSS frequency?
122.2/255.4
Either in the chart supplement or on the IFR En-Route Charts
What does this mean on the IFR chart?
Unusable Route Segment
What does this thin bronze route mean?
Military Training Route 5nm or less on both sides of center line
What does this thick bronze route mean?
Military Training Route 5nm or more on both sides of center line
Where can you find information about an MTR?
In the front of the associated En-Route Chart
What is the MOCA on this chart and what does the MOCA represent?
The MOCA (Minimum Obstruction Clearance Altitude) is the lowest published altitude in effect between fixes on VOR airways, off-airway routes, or route segments that meets obstacle clearance requirements for the entire route segment.
This altitude also assures acceptable navigational signal coverage only within 22 NM of a VOR.
The MOCA is *3000
What is the MEA on this chart and what does the MEA represent?
The MEA (Minimum En Route Altitude) is the lowest published altitude between radio fixes that ensures navigation signal coverage and meets obstacle clearance requirements between those fixes.
The MEA on this photo is 3800
What is the MRA on this chart and what does the MRA represent?
MRAs (Minimum Reception Altitude) are the minimum altitude the navigation signal can be received for the route and for off-course NAVAID facilities that determine a fix.
When the MRA at the fix is higher than the MEA, an MRA is established for the fix and is the lowest altitude at which an intersection can be determined.
4900
What is the MCA on this chart and what does the MCA represent?
An MCA (Minimum Crossing Altitude) is the lowest altitude at certain fixes at which the aircraft must cross when proceeding in the direction of a higher minimum en route IFR altitude.
4800
What is the OROCA on this chart and what does the OROCA represent?
An off-route obstruction clearance altitude (OROCA) is an off-route altitude that provides obstruction clearance with a 1,000-foot buffer in non-mountainous terrain areas, and a 2,000-foot buffer in designated mountainous areas. This altitude doesn’t guarantee signal coverage from ground-based NAVAIDs, ATC radar, or communications coverage.
3700
