Class B

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triplebarrel
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Class B

Post by triplebarrel »

Can anyone give me an example of a class b CZ in Canada. I know they exist in the states.

from the DAH:

2. Class B*
All low level controlled airspace above 12,500´ ASL or from the MEA, whichever is higher, to below 18,000´ ASL. TCAs and associated primary CZs may also be classified Class B airspace.

looked through the DAH for specific airspace and it was all abv 12,500 to 18,000 as per the rest of the well-known class B

From AIM:

Class B airspace is generally defined as low-level controlled airspace and exists between 12 500 ft and the floor of Class A airspace but it may include some control zones and control areas that are lower. The specific dimensions of Class B airspace in Canada can be found in the DAH.

Definition of a control zone from AIM:

2.7.3 Control Zones
Control zones are designated around certain aerodromes to keep
IFR aircraft within controlled airspace during approaches and
to facilitate the control of VFR and IFR traffic.
Control zones having a civil control tower within a terminal
control area normally have a 7-NM radius. Others have a 5-NM
radius, with the exception of a few which have a 3-NM radius.
Control zones are capped at 3 000 ft AAE unless otherwise
specified. Military control zones usually have a 10-NM radius
and are capped at 6 000 ft AAE. All control zones are depicted
on VFR aeronautical charts and the Enroute Low Altitude Charts.
Control zones will be classified as “B”, “C”, “D” or “E” depending
on the classification of the surrounding airspace.

Just curious, thanks!
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photofly
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Re: Class B

Post by photofly »

There are no Class B control zones in Canada at present.
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triplebarrel
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Re: Class B

Post by triplebarrel »

photofly wrote: Wed Mar 24, 2021 2:03 pm There are no Class B control zones in Canada at present.
must be in there as a provision, thanks
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photofly
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Re: Class B

Post by photofly »

One imagines it's more of a PITA for ATC if a control zone becomes class B because now every single VFR flight needs a specific clearance for whatever they want to do; no more discretion to get on with your own stuff.
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thenoflyzone
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Re: Class B

Post by thenoflyzone »

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triplebarrel
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Re: Class B

Post by triplebarrel »

thenoflyzone wrote: Thu Mar 25, 2021 10:57 am viewtopic.php?f=68&t=106015
cool
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parrot_head
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Re: Class B

Post by parrot_head »

photofly wrote: Wed Mar 24, 2021 3:53 pm One imagines it's more of a PITA for ATC if a control zone becomes class B because now every single VFR flight needs a specific clearance for whatever they want to do; no more discretion to get on with your own stuff.
Class C doesn't necessarily mean you can get on with your own stuff; the big difference between Class B and Class C are the separation requirements. In Class B we must apply IFR separation (minimum 3nm or 1000ft) between all aircraft, VFR/VFR or VFR/IFR. Class C allows us to apply VFR separation between VFR/IFR or VFR/VFR. Yes, Class C is a more lenient as we can apply "see and avoid", which we cannot do in Class B, but you still need approval to get on with your stuff.
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triplebarrel
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Re: Class B

Post by triplebarrel »

parrot_head wrote: Thu Apr 01, 2021 7:06 pm
photofly wrote: Wed Mar 24, 2021 3:53 pm One imagines it's more of a PITA for ATC if a control zone becomes class B because now every single VFR flight needs a specific clearance for whatever they want to do; no more discretion to get on with your own stuff.
Class C doesn't necessarily mean you can get on with your own stuff; the big difference between Class B and Class C are the separation requirements. In Class B we must apply IFR separation (minimum 3nm or 1000ft) between all aircraft, VFR/VFR or VFR/IFR. Class C allows us to apply VFR separation between VFR/IFR or VFR/VFR. Yes, Class C is more lenient as we can apply "see and avoid", which we cannot do in Class B, but you still need the approval to get on with your stuff.
right on, thanks
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