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Flashcards in Class A Airspace Deck (12):

What is the vertical area of Class A airspace?

From FL 180 (18,000 feet) up to FL 600 (60,000 feet)


What is the overall coverage of Class A airspace?

Over the 48 contiguous US (including D.C.) 

Most of Alaska

Within 12 NM offshore


Does Class A airspace exist above Hawaii?

No Class A above Hawaii 


What are the entry requirements for Class A airspace?

IFR clearance from ATC


What are the communications requirements for Class A airspace?

Two-way radio communications 


What are the equipment requirements for Class A airspace?

Mode C transponder

Two-way radio

All equipment required for IFR flight in a specified aircraft

Distance Measuring Equipment (DME) above FL 240


Distance Measuring Equipment (DME) is required above what altitude inside Class A airspace?

Above FL 240 (24,000 feet)


What is the minimum pilot certificate requirement for Class A airspace?

Private pilot with an instrument rating


Under what circumstances would an aircraft find itself under VFR in Class A airspace?

Emergency due to lost communications


What is the minimum flight visibility or distance from clouds in Class A airspace?

No flight visibility or distance from clouds is specified


What altimeter setting is universally used in Class A airspace?

29.92 (indicated = pressure altitude)


What is the purpose of mandating that a 29.92 altimeter setting be used by all aircraft in Class A airspace?

Allows for all aircraft to be flying on same altimeter setting

No local altimeters needed for terrain or obstacle clearance

Easier and safer when separating air traffic