Navigation, Facilities and Instrument Approach Facilities / Procedures

Question 1

Your DME shows 1 mile. Where are you in relation to the DME station? What is your altitude?

Answer 1

AIM 1-1-7 b

Directly above the station at 6,000’ AGL

“Operating on the line−of−sight principle, DME furnishes distance information with a very high degree of accuracy. Reliable signals may be received at distances up to 199 NM at line−of−sight altitude with an accuracy of better than 1/2 mile or 3 percent of the distance, whichever is greater. Distance information received from DME equipment is SLANT RANGE distance and not actual horizontal distance.”

Question 2

When are ATIS broadcasts updated?

Answer 2

AIM 4-1-13 b

ATIS broadcasts are updated upon receipt of any official weather, regardless of content change or reported values.

Absence of the sky condition and visibility on an ATIS broadcast specifically implies that the ceiling is more than 5,000 feet and visibility is 5 miles or more.

Question 3

What are the altitude and range boundaries of Terminal and Low Altitude VOR’s?

Answer 3

GOM 1-1-8

Terminal - 1,000AGL to 12,000 AGL out to 25NM.

Low - 1,000’ AGL to 18,000 AGL out to 40 NM.

Question 4

You check NOTAMs at the beginning of your shift and note that the VOR located on the field at the center of the Class B airspace under which you generally fly is going to be out of service for the next 5 hours for maintenance. You depart on ta flight and note that you hear the ID and the OBS appears to be receiving a signal.

Should you use this as a source of navigation?

Answer 4

AIM 1-1-11 and 1-1-12

DO NOT attempt to fly a procedure that is NOTAM’ed out of service even if the identification is present. In certain cases, the identification may be transmitted for short periods as part of the testing