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-   -   Canadian Vis minima (https://www.pprune.org/tech-log/252158-canadian-vis-minima.html)

spaceman18 13th Nov 2006 16:54

Canadian Vis minima
 
Please excuse my ignorance...
Im looking at some Jepp canadian approach plates, and am struggling to understand the visibility minima.
For example, CYHZ ILS RWY 23 CAT I, with the full lighting system available it says RVR26 OR 1/2.
My thinking, and please please, correct me if Im wrong is that its 1/2 statute mile? But im stumped by the RVR units?
Finally there are JAA minimums pages, where for the same approach mentioned above, its lists the vis minima as R26 V1/2.
Any help would be greatly appreciated
Many thanks

cossack 13th Nov 2006 17:16

RVR26 = 2600 feet or about 800 metres = about 1/2 Statute Mile.

spaceman18 13th Nov 2006 17:35

Ahhh it all seems so obvious now!!:D
Thanks very much!

chevvron 14th Nov 2006 06:15

800m seems rather high; Cat 1 in Europe with full lighting would normally be 550m providing GP was 2.5 to 3.5 deg.

TheCanuck 15th Nov 2006 14:27

Right now in Canada that RVR 2600 does not constitute an approach ban. For Cat 1 Approach ban is RVR 1200.

Cheers

6Pack 30th Nov 2006 03:33

The visibilities printed on the approach plates in the CAP are advisory only. They constitute a minimum for a "high probability for a successful approach" if I remember the wording correctly. As the Canuck said, approach ban is 0.25 mile or RVR 1200. If there is an A & B(mid point) RVR, then the B can be RVR 600.

flywestjetcr 30th Nov 2006 15:06

And of course all of the above changes tomorrow...December 1st.

:eek:

Check the CAPS or your company Ops Spec...Charted vis is no longer advisory.

Life just became a little bit more complicated!!

6Pack 1st Dec 2006 00:14


Originally Posted by flywestjetcr (Post 2995213)
And of course all of the above changes tomorrow...December 1st.

:eek:

Check the CAPS or your company Ops Spec...Charted vis is no longer advisory.

Life just became a little bit more complicated!!

So what becomes of the .25 mile / RVR 1200 approach minimum? Out the door er what?

pstaney 1st Dec 2006 13:46


Originally Posted by flywestjetcr (Post 2995213)
Charted vis is no longer advisory.

Can you explain this? Charted vis will be a minimum to land, without breaking regs?


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