Low level controlled airspace / types / dimensions / flight rules

Controlled Airspace
-Controlled airspace: ATC services provided; some or all aircraft may be subject to ATC
-Types of controlled airspace vary in the High Level Airspace and in the Low Level Airspace
-In the High Level Airspace, the types of controlled airspace are:
the Southern Control Area (SCA)
the Northern Control Area (NCA)
the Arctic Control Area (ACA)
-In the Low Level Airspace, the types of controlled airspace are:
low level airways
terminal control areas
control area extensions
control zones
transition areas
military terminal control areas

Low level controlled airspace
-Low level controlled airspace extends upward from 2 200 ft AGL up to but not including 18 000 ft AGL
-It is broken into class B and class E
-Class B low level controlled airspace: 12 501 ft AGL or MEA (whichever is higher) up to but not including 18 000 ft ASL **this may just involved airways…..
-Class E low level controlled airspace: 2 200 ft AGL up to the bottom of class B airspace ** this may just involve airways….
-Controlled airspace within the Low Level Airspace is divided into 6 separate areas

Low-Level Airways
-An airway can be based upon UHF, VHF, or LF/MF track guidance
-Airway lateral dimensions will depend on how the Victor airway is established (i.e. the type of navigation aid on which they are based… VHF navaids are VORs, LF/MF navaids are NDBs, and we can combine the two….i.e. VOR/VOR, VOR/NDB, etc).
(a) VHF/UHF airways based on VOR/VOR:
4 NM width on each side of the centreline
Diverge 4.5 degrees on each side
50.8 NM
(b) VHF/UHF airways based on VOR/VORTAC and NDB:
4.34 NM width on each side of the centreline
Diverge 5 degrees on each side
49.66 NM
(c) LF/MF airways based on NDB/NDB:
4.34 NM width on each side of the centreline
Diverge 5 degrees on each side
49.66 NM
(d) T-Routes: fixed RNAV routes
4 NM of primary obstacle protection area on each side of the centreline
2 NM of secondary obstacle protection area on each side of the centreline
Airspace associated with RNAV T-routes is 10 NM on each side of centreline
*airspace and protection areas do not splay
Notes:
-the point of splay is obstacle protection
-check out this link on Victor airways
-remember, if its an air route it will have the same dimensions as stated above! It is just in uncontrolled (class G) airspace
-air routes extend from the surface of the earth

Terminal Control Areas

Control Area Extensions

Control Zones

Transition Areas

Military Terminal Control Areas

Flight Rules

Quizzes
Quiz 1