IFR Charts

Brown Airport on approach chart means?

No approaches

Green airport on approach chart means?

Instrument approaches

Blue airport on approach chart means?

High altitude approach

The number in the square box is the total distance_______

Of that portion of route between 2 navaids

The number in the box with and arrow pointing is_____________

the distance from the VOR of the arrow to the first fix

MEA: Minimum En-Rout Altitude

Lowest altitude that ensures obstacles clearance and navigational signal coverage

MRA: Minimum Reception Altitude

Lowest altitude at which a off course NAV facility can be received to identify a fix

MAA: Maximum Authorized Altitude

The highest altitude you can fly while still getting adequate navigational signal

OROCA: Off Route Obstruction Clearance Altitude

Ensures obstacle clearance but only Nav signal 22 miles from VOR

MCA: Minimum Crossing Altitude

Lowest altitude the fix can be when proceeding to a higher MEA segment

MOCA: Minimum Obstruction Clearance Altutude

Lowest punlished altitude provides obstinate clearance for entire segment only insures NAV signal within 22NM of VOR