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Old 13th Nov 2006, 16:54
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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
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Old 13th Nov 2006, 17:16
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RVR26 = 2600 feet or about 800 metres = about 1/2 Statute Mile.
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Old 13th Nov 2006, 17:35
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Ahhh it all seems so obvious now!!
Thanks very much!
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Old 14th Nov 2006, 06:15
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800m seems rather high; Cat 1 in Europe with full lighting would normally be 550m providing GP was 2.5 to 3.5 deg.
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Old 15th Nov 2006, 14:27
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Right now in Canada that RVR 2600 does not constitute an approach ban. For Cat 1 Approach ban is RVR 1200.

Cheers
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Old 30th Nov 2006, 03:33
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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.
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Old 30th Nov 2006, 15:06
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And of course all of the above changes tomorrow...December 1st.



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

Life just became a little bit more complicated!!

Last edited by flywestjetcr; 30th Nov 2006 at 15:08. Reason: add
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Old 1st Dec 2006, 00:14
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Originally Posted by flywestjetcr
And of course all of the above changes tomorrow...December 1st.



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?
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Old 1st Dec 2006, 13:46
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Originally Posted by flywestjetcr
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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