SIFT Aviation Regulations and Airspace Questions and Answers Flashcards

What does the term 'Class D airspace' refer to in US aviation regulations?

Answer: Airspace around airports with an operating control tower, typically extending to 2,500 feet AGL

Class D airspace surrounds airports with an operating control tower and typically extends from the surface to 2,500 feet AGL within a 4-nautical-mile radius.

What is the primary purpose of a NOTAM (Notice to Air Missions)?

Answer: To alert pilots to temporary changes or hazards affecting airspace, facilities, or procedures

A NOTAM alerts pilots and flight crew to temporary changes, hazards, or information critical to safe flight operations that may not appear on standard charts.

What minimum altitude must Army helicopters maintain when flying over a congested area?

Answer: 1,000 feet above the highest obstacle within 2,000 feet horizontally

FAA regulations require aircraft over congested areas to maintain at least 1,000 feet above the highest obstacle within a 2,000-foot horizontal radius.

Which type of airspace requires a clearance from ATC before entry under all conditions?

Answer: Class B airspace

Class B airspace surrounds the nation's busiest airports and requires an ATC clearance before entry regardless of weather conditions.

What is a Temporary Flight Restriction (TFR) most commonly used for?

Answer: Protecting airspace during special events, disasters, or VIP movement

TFRs are issued to protect airspace temporarily during events such as natural disasters, VIP movements, airshows, or national security situations.

What does 'VFR on top' mean in aviation operations?

Answer: An IFR clearance allowing the pilot to fly in VFR conditions above clouds at a VFR altitude

'VFR on top' is an IFR clearance that allows the pilot to fly at a VFR altitude while still on an IFR flight plan, maintaining VFR cloud clearance above a cloud layer.