minimum IFR altitudes

Define minimum IFR altitude

The lowest IFR altitude established for use in a specific airspace

Define Minimum Obstacle Clearance Altitude

The altitude ASL between specific fixes on airways or air routes that meet IFR obstacle clearance requirements for the route segment in question.

Define Minimum Enroute Altitude

The altitude ASL between specific fixes on airways or air routes that allows reception of an acceptable navigational signal from a NAVAID and provides terrain clearance.

Define Minimum Sector Altitude

The lowest altitude that provides a minimum clearance of 1,000 feet under conditions of standard temperature and pressure above all objects located in an area contained within a sector of a circle with a 25 NM radius centred on a radio aid to navigation or a specified point.

Define Minimum Vectoring Altitude

The lowest altitude for vectoring aircraft by ATC that meets obstacle clearance and radio coverage requirements in the airspace specified.

Which altitude is used by controllers to ensure that while providing surveillance control service, they are providing ground clearance and radio coverage.

Minimum Vectoring Altitude

Define Safe Altitude 100 NM

The lowest altitude that provides a minimum clearance of 1,000 feet above all obstacles within 100 NM of an aerodrome.

How does Safe Altitude 100 NM differ in a designated mountainous region?

A minimum clearance of 1,500 feet or 2,000 feet, as appropriate.

Safe Altitude 100 NM applies under conditions of _________. Therefore, pilots must use an _______ to account for ________.

standard temperature and pressure, altitude correction chart, instrument error

Define Area Minimum Altitude

The lowest altitude that provides a minimum vertical clearance of 1,000 feet above all obstacles located in the area specified.

How does Area Minimum Altitude differ in designated mountainous regions?

Provides a minimum clearance of 2,000 feet

Define Transition Altitude

The highest altitude at which the vertical position of the aircraft is expressed in feet. Above it, the vertical position is expressed as a flight level.

Define Minimum Reception Altitude

When applied to a specific VHF/UHF intersection, it is the lowest altitude ASL at which acceptable navigational signal coverage is received.

MVA stands for:

Minimum Vectoring Altitude

The lowest altitude that provides a minimum vertical clearance of 1,000 feet above all obstacles located in the area specified is called:

Area minimum altitude

Transition altitude is expressed as a flight level.

False

What is the usual radius of a transition area?

15 NM

The pilot of an aircraft must ensure that the aircraft is operated at a cruising altitude or flight level appropriate to the ________.

aircraft track

How do the MEA and MOCA differ?

The MOCA only provides obstacle clearance, while the MEA also guarantees acceptable navigational signal for NAVAIDs.