CH3 Airspace

Question 1

There are two categories of airspace or airspace areas:

Answer 1

Regulatory (Class A, B, C, D and E airspace areas, restricted and prohibited areas); and
Non-regulatory (military operations areas [MOA], warning areas, alert areas, controlled firing areas [CFA], and national security areas [NSA]).

Question 2

Within these two categories, there are four types:

Answer 2

1. Controlled,
2. Uncontrolled,
3. Special use, and
4. Other airspace.

Question 3

The categories and types of airspace are dictated by:

Answer 3

1. The complexity or density of aircraft movements,
2. The nature of the operations conducted within the airspace,
3. The level of safety required, and
4. The national and public interest.

Question 4

Basic VFR Weather Minimums

Answer 4

No person may operate an aircraft under basic VFR when the flight visibility is less, or at a distance from clouds that is less, than that prescribed for the corresponding altitude and class of airspace.

Question 5

Controlled Airspace

Answer 5

A generic term that covers the different classification of airspace (Class A, Class B, Class C, Class D, and Class E airspace) and defined dimensions within which air traffic control service is provided to IFR flights and to VFR flights in accordance with the airspace classification.

Question 6

IFR Requirements

Answer 6

IFR operations in any class of controlled airspace requires that a pilot must file an IFR flight plan and receive an appropriate ATC clearance.

Question 7

IFR Separation

Answer 7

Standard IFR separation is provided to all aircraft operating under IFR in controlled airspace.

Question 8

VFR Requirements

Answer 8

It is the responsibility of the pilot to ensure that ATC clearance or radio communication requirements are met prior to entry into Class B, Class C, or Class D airspace. The pilot retains this responsibility when receiving ATC radar advisories.

Question 9

Traffic Advisories

Answer 9

Traffic advisories will be provided to all aircraft as the controller’s work situation permits.

Question 10

Safety Alerts

Answer 10

Safety Alerts are mandatory services and are provided to ALL aircraft.

Question 11

There are two types of Safety Alerts: A ____ is issued when, in the controller’s judgment, an aircraft’s altitude places it in unsafe proximity to terrain and/or obstructions.

Answer 11

Terrain/Obstruction Alert

Question 12

There are two types of Safety Alerts: An ___ is issued if the controller observes another aircraft which places it in an unsafe proximity. When feasible, the controller will offer the pilot an alternative course of action.

Answer 12

Aircraft Conflict/Mode C Intruder Alert

Question 13

Generally, that airspace from 18,000 feet MSL up to and including FL 600, including the airspace overlying the waters within 12 nautical miles off the coast of the 48 contiguous States and Alaska; and designated international airspace beyond 12 nautical miles off the coast of the 48 contiguous States and Alaska within areas of domestic radio navigational signal or ATC radar coverage, and within which domestic procedures are applied.

Answer 13

Class A Airspace