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RVR naming. Rollout OR stop end.

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RVR naming. Rollout OR stop end.

Old 31st Mar 2020, 04:24
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RVR naming. Rollout OR stop end.

Hi Gents and Ladies

Would anyone know why we see the terms "rollout" and "stop end" used for apparently the same location?
Is this a case of one part of the world doing it differently to the other?

Also, if there are 4 RVR reporting points on the runway (as is the case in my home base), what are the third and fourth called?

A Jepps reference would be greatly appreciated if that's easy for any bookworm types out there.

Thanks
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Old 31st Mar 2020, 04:39
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In USA Land it's touchdown zone, mid, rollout, and for the few airports that have a 4th RVR, I believe it's "far end." This is 90% sure by memory, sorry no Jepp. But if you find someone who has access to Denver KDEN Jepps, that is one such airport.

Edit: Huh, turns out I do have Denver Jepps, and what I wrote above is true. Also the far end RVR is advisory only and not controlling.
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Old 31st Mar 2020, 07:12
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For ICAO, it would be "stop-end".

Annex 3
4.6.3.4 Runway visual range assessments shall be representative of:
a) the touchdown zone of the runway intended for non-precision or Category I instrument approach and landing operations;
b) the touchdown zone and the mid-point of the runway intended for Category II instrument approach and landing operations; and
c) the touchdown zone, the mid-point and stop-end of the runway intended for Category III instrument approach and landing operations.
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Old 31st Mar 2020, 07:42
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If i remember correctly the last time i had CAT III conditions in MUC they reported touch down, mid point, mid point, stop end. I might be mistaken though, it has been a month or two and i was more interested why they moved into a very unusual runway configuration with the southern ones for approaches and the northern one for departures. Since traffic level was already down considerably, that might have been the reason.
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Old 3rd Apr 2020, 06:08
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Thanks fellas.
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Old 10th May 2020, 12:21
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Confused

Hi everyone! Could anyone answer this question please! And if you have reference kindly attach.

Letís say your min RVR for Cat 3A is 200 m,

Your touchdown RVR is 200 m. Should your Mid RVR be 200 m as well? Touchdown and mid RVR are mandatory and controlling.

Thank you for your reply
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Old 10th May 2020, 13:51
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Your touchdown RVR is 200 m. Should your Mid RVR be 200 m as well?
No - The touchdown zone RVR shall always be controlling. If reported and relevant, the midpoint and stopend RVR shall also be controlling. The minimum RVR value for the midpoint shall be 125 m or the RVR required for the touchdown zone if less, and 75 m for the stopend. For aircraft equipped with a rollout guidance or control system, the minimum RVR value for the midpoint shall be 75 m.
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Old 10th May 2020, 14:57
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Originally Posted by 9 points View Post

Also, if there are 4 RVR reporting points on the runway (as is the case in my home base), what are the third and fourth called?
What airport is that? I haven't seen a 4 RVR runway.
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Old 10th May 2020, 15:03
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Originally Posted by Johnny [email protected] Pants View Post
No - The touchdown zone RVR shall always be controlling. If reported and relevant, the midpoint and stopend RVR shall also be controlling. The minimum RVR value for the midpoint shall be 125 m or the RVR required for the touchdown zone if less, and 75 m for the stopend. For aircraft equipped with a rollout guidance or control system, the minimum RVR value for the midpoint shall be 75 m.
Reply:

Letís say the Wx is RVR 200,125,75 m

Since our minima for CAT 3 is 200 m, and touchdown and Mid RVR are mandatory and controlling as per our Regulation, Is it legal for me to fly the approach before approach ban?

Thank you
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Old 10th May 2020, 18:50
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Originally Posted by aterpster View Post
What airport is that? I haven't seen a 4 RVR runway.
KDEN, Denver.
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Old 11th May 2020, 07:44
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Angel

Originally Posted by aterpster View Post
What airport is that? I haven't seen a 4 RVR runway.
Have a look at DXB/OMDB, DOH/OTHH.
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Old 11th May 2020, 13:29
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If you are going to be above 60kt then it's relevant so unless your stopping distance is less than 1/3 the runway you should respect the approach ban.
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Old 11th May 2020, 15:34
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Originally Posted by Vessbot View Post
I...But if you find someone who has access to Denver KDEN Jepps, that is one such airport.

Edit: Huh, turns out I do have Denver Jepps, and what I wrote above is true. Also the far end RVR is advisory only and not controlling.
Here is the digital chart supplement for KDEN. I find some two, some three RVR runways, but no four RVR runways.

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Old 11th May 2020, 16:43
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Originally Posted by FE Hoppy View Post
If you are going to be above 60kt then it's relevant so unless your stopping distance is less than 1/3 the runway you should respect the approach ban.
If you are going to be above 60kt for the third part, then it would be relevant. For manual high-speed rollout, the 125 in the MID is sufficient.

Fixed?
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Old 11th May 2020, 16:45
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Originally Posted by aterpster View Post
Here is the digital chart supplement for KDEN. I find some two, some three RVR runways, but no four RVR runways.
I'm guessing the AeroNav supplement omits anything that is not required due to clutter. Here's the Jepp. The only runway that has this is 34L/16R.
​​​​​​


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Old 11th May 2020, 16:58
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Originally Posted by Vessbot View Post
I'm guessing the AeroNav supplement omits anything that is not required due to clutter. Here's the Jepp. The only runway that has this is 34L/16R.
​​​​​​
Thanks! Interesting.
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Old 11th May 2020, 23:04
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Originally Posted by James0830 View Post
Reply:

Letís say the Wx is RVR 200,125,75 m

Since our minima for CAT 3 is 200 m, and touchdown and Mid RVR are mandatory and controlling as per our Regulation, Is it legal for me to fly the approach before approach ban?

Thank you
It is legal for you to fly the approach right the way to minimums. If any of the controlling RVRís fall below the limits you can still commence the approach, but not beyond the 1000í point or equivalent.
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Old 12th May 2020, 03:32
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Far end is “for advisory only”
Safe flights and stay healthy
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