Airspace Structure Flashcards
Airspace dimensions and VHF frequencies for high density airports in Canada are shown on which publications?
VFR Terminal Area Charts (VTA) and the CFS
What are the 7 airspace classes?
What are the specifications for Class A airspace, which overlies all of Canada?
Known as controlled high level airspace
- SDA it is from FL180 to FL600
- NDA it is from FL230 to FL600
- ACA ( it is from FL270 to FL600
- IFR only
- Clearance required
- Mode C transponder required
What are the requirements for Class B airspace, which is usually found only in areas with radar coverage where a need exists for ATC services to IFR and control VFR aircraft?
- Class B is all low level controlled airspace above 12500ft ASL and up to but not including FL180 and is indicated by a hatched pattern on LO charts and a dark blue line on VFR Navigation charts (VNC)
- IFR and VFR allowed
- Clearnace required to enter
- Mode C transponder
Define Class C airspace
- Class C is defined, controlled airspace around busy airports, described as Terminal Control Areas and their associated Control Zones
- IFR and VFR allowed (IFR provided with traffic separation and VFR provided with traffic info upon request)
- Clearance required to enter
- Transponder Mode C
**Class C reverts to Class E when ATC is closed
Define Class D airspace
-Defined controlled airspace around kinda busy airports (Halifax) described as Terminal Control Areas and their associated Control Zones
-IFR and VFR allowed but where VFR must establish two-way communication before entering
-MAY need transponder Mode C (will say on the map or CFS)
There are no special requirements for VFR in Class E controlled airspace UNLESS…
…it is a Control Zone
What types of areas can end up being Class E airspace?
- Low level airways
- Control area extensions, transition areas, or control zones established WITHOUT an operating control tower
- Class C or D when the tower is closed
In Class E airspace, what areas do VFR controlled airspace weather minimums apply?
Both in the airspace and control zones
If an erodrome has a Class E Control Zone, VFR aircraft must follow ____ procedures as well as get a ____ ____ 5 minutes prior to entering the zone.
-MF procedures
-Traffic advisory from the controlling FSS
How is a Class E control zone indicated on a map?
Dashed line around the control area
Unless it specifically says ASL next to the altitute on a map, then the alitude is…
AGL
What are the 3 types of Class F airspace?
Restricted (CYR) - Prior permisson only
Advisory (CYA) - VRF may fly thru but keep alert, but just dont
Forest Fires
Unless otherwise stated, what frequency should you monitor when flying through Class F Advisory (CYA) airspcace?
126.7
Who is not allowed in either Class F airspace?
IFR aircraft unless they have prior permission from the user agency, have an altitude reservation, or are conducting a contact or visual approach
What are the 7 Class F Activity Codes?
S - Soaring
H - Hang gliding
A - Aerobatic
T - Flight Training
P - Parachute
F - Flight Test Area
M - Military
What are the parameters of the restricted airspace around a forest fire?
-It extends from the surface of the earth up to 3000AGL
-Has a radius of 5NM
-Will be published and modified via NOTAM
What are the characteristics of Class G airspace?
-Covers 99% of Canada and is uncontrolled
-No restrictions for IFR or VFR
-Extends up to Class A airspace unless another overlying airspace is indicated above it
What are Low Level Air Routes?
Low level air routes are similar to airways but are Class G uncontrolled airspace. They are designated by two letters and a number, ie: AR34
What airspaces require a transponder?
-All Class A, B, and C
-Class D and E MAY require one
-All Class E extending from 10000ASL up to and including 12500ASL within radar coverage
What are types of controlled airspace?
-High Level Airspaces FL180 (SDA), FL230 (NDA), FL27 (ACA) and above (Class A)
-Low level airspace that is Class B, C, D, or E.
-All low level airways, which are Class E, are controlled
What do IFR aircraft require to enter into any contolled airspace, regardless of Class?
A clearance
What are the usual dimensions of a Control Zone (CZ)?
Extends upwards from the surface, up to and including 3000AGL (unless otherwise specified)
What is the purpose of a Control Area Extension (CAE) and the typical dimensions of them?
-To provide aditional controlled airspace for IFR traffic.
-A CAE typically surrounds and overlies the core Control Zone.
-CAE typically extend upward from 2200AGL up to but not including 18000ASL, same as an airway
