A flag with an "X" in it is what?

A flag with an "X" in it is what?

• A. Minimum Crossing Altitude or Minimum Turning Altitude
• B. Obstacle Clearance
• C. Minimum Reception Altitude
• D. Minimum Descent Altitude

Answer: (A)

On instrument approach plates, symbols are used to communicate specific altitude restrictions that keep you safe as you move from one segment to the next. A flag with an X inside it signals a published altitude you must not go below at or near a fix—the minimum crossing altitude when you cross that fix, or the minimum turning altitude if a turn must be started near that point. These altitudes exist to ensure obstacle clearance during the transition or while initiating a turn onto the next segment. So this symbol points to a fixed altitude requirement tied to a location on the procedure, not to general obstacle clearance, not to the need for receiving a navigation signal, and not to the descent altitude used on other parts of an approach.

On instrument approach plates, symbols are used to communicate specific altitude restrictions that keep you safe as you move from one segment to the next. A flag with an X inside it signals a published altitude you must not go below at or near a fix—the minimum crossing altitude when you cross that fix, or the minimum turning altitude if a turn must be started near that point. These altitudes exist to ensure obstacle clearance during the transition or while initiating a turn onto the next segment.

So this symbol points to a fixed altitude requirement tied to a location on the procedure, not to general obstacle clearance, not to the need for receiving a navigation signal, and not to the descent altitude used on other parts of an approach.