Airspace Classification Quiz

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Questions and Answers

What is Class G Airspace?

Airspace used for military operations

Airspace with no ATC control (correct)

Airspace controlled by ATC

Airspace above 14,500 feet MSL

What identifies the starting altitude of Class E Airspace?

Magenta shading on the Sectional Chart

What is the vertical limit of Class D Airspace?

Approximately 2,500 feet AGL

Class C Airspace requires two-way radio communications equipment.

True Signup and view all the answers

What is the purpose of Class B Airspace?

Controlled airspace around primary airports Signup and view all the answers

What do Restricted Areas indicate?

Unusual hazards to aircraft Signup and view all the answers

What are Warning Areas located?

In international airspace Signup and view all the answers

What are Prohibited Areas?

Airspace where flight of aircraft is prohibited Signup and view all the answers

What do TFRs stand for?

Temporary Flight Restrictions Signup and view all the answers

What do MOAs stand for?

Military Operation Areas Signup and view all the answers

What should pilots do when flying in Alert Areas?

Be particularly alert Signup and view all the answers

What is a Controlled Firing Area?

Airspace designated for controlled activities to prevent hazards Signup and view all the answers

What is a Local Airport Advisory?

Service provided by FSS facilities on the landing airport Signup and view all the answers

What is the purpose of Military Training Routes (MTRs)?

For low-altitude, high-speed military training Signup and view all the answers

What is required for parachute jump aircraft operations?

Coordination of pertinent information Signup and view all the answers

What are Published VFR routes used for?

Transitioning around complex airspace Signup and view all the answers

What does ADIZ stand for?

Air Defense Identification Zone Signup and view all the answers

What does FRZ stand for?

Flight Restricted Zone Signup and view all the answers

What does NOAA stand for?

National Oceanic and Atmospheric Administration Signup and view all the answers

Study Notes

Class G Airspace

Uncontrolled airspace where ATC does not exercise control over traffic.
Extends from surface to base of Class E airspace, typically 700 or 1,200 feet AGL.
In western U.S. and Alaska, may extend from surface to 14,500 feet MSL, unless below 1,500 feet AGL.

Class E Airspace

Identified on Sectional Charts by magenta shading (700 feet AGL) or no shading (1,200 feet AGL).
Encompasses 14,500 feet to 17,999 feet, surface area at certain airports without control towers.
Airway corridors extend from 1,200 feet AGL to 17,999 feet MSL, 4NM on either side of the centerline shown in blue.

Class D Airspace

Extends from surface to approximately 2,500 feet AGL, with size depicted on sectional charts by a blue dashed line.
Typically centered around airports, radius of 4 NM.
Additional restrictions apply when ceiling is under 1,000 feet or visibility less than 3 statue miles.

Class C Airspace

Consists of two concentric circles centered on the primary airport; inner area has a radius of 5 NM up to 4,000 feet AGL, outer shell is 10 NM radius from 1,200 feet AGL to 4,000 feet.
Outer area extends 20 NM from the airport, providing advisory services.
Requires two-way radio comms, transponder, and encoding altimeter for operation.

Class B Airspace

Controlled airspace from surface to specified altitudes, centered around primary airports.
Size and layout vary significantly, outlined in blue on sectional charts.
ATC clearance required to operate within; pilots need at least a Private Pilot certificate for busy Class B airports.

Restricted Areas

Designated for unusual and often invisible hazards such as gunfire and guided missiles.
Unauthorized entry poses extreme risks; permission from controlling agency is required.

Warning Areas

Contains hazardous activities located in international airspace.
Similar to restricted areas, these are depicted on charts.

Prohibited Areas

Airspace where aircraft flight is completely prohibited, such as around the White House.

TFRs (Temporary Flight Restrictions)

Temporary restrictions due to VIP movements, special events, or natural disasters.
Several TFRs may be active across the National Airspace System at any time.

MOAs (Military Operation Areas)

Purpose-built airspace to separate military training activities from IFR traffic.
Pilots should contact controlling agency for advisories before entering active MOAs.

Alert Areas

High volume of pilot training or unusual aerial activities.
Pilots are responsible for maintaining awareness to avoid collisions.

CFAs (Controlled Firing Area)

Airspace for activities that are hazardous outside controlled conditions.

LAA (Local Airport Advisory)

Provided by FSS for airports with discrete communication frequencies and automated weather reporting.
Participation encouraged for enhanced safety.

MTR (Military Training Route)

Designed for military low-altitude, high-speed training, established below 10,000 feet MSL.
Operations inside identified by four-digit designators (VR for VFR and IR for IFR).

Parachute Jump Aircraft Operations

Coordination needed for information regarding parachute jumps with other ATC facilities.

Published VFR Routes

Designed for navigating complex airspace, found on VFR terminal area planning charts.

ADIZ (Air Defense Identification Zone)

Airspace for identifying and controlling civil aircraft, extending beyond national territory for security.

FRZ (Flight Restricted Zone)

Areas where operations are hazardous to drone flights due to hidden risks like artillery.

NOAA (National Oceanic and Atmospheric Administration)

U.S. scientific agency focused on oceanic, waterway, and atmospheric conditions, under Department of Commerce.

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Description

Test your knowledge on the different classes of airspace including Class G, E, D, and C. This quiz covers their characteristics, altitudes, and how they are depicted on sectional charts. Perfect for aviation students and enthusiasts!