Questions tagged [visibility]
The maximum distance at which objects can be seen.
52 questions
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Can you have just published weather takeoff minimums?
Was just curious to know if any airports in the United States have takeoff minimums that consists just of the weather minimums (ceiling/visibility, such as 400-1). With minimums like these, pilots can ...
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Low visibility in progress and low visibility in force [closed]
Are Low visibility in progress and low visibility in force different?
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Does high speed airflow remove water from the plane's windshield more effectively?
I have read something from the web that mentions higher speed reduces visibility during rain because water spreads over a larger area and the plane impacts droplets more frequently.
I think that ...
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What values will I use for circle-to-land in categories A and B? RVR 1800m or RVR 2200m?
What values will I use for circle-to-land in categories A and B? RVR 1800m or RVR 2200m? And if I am using them, why are the visibility values such as 1500m-1600m determined?
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What factors determine the DA(DH) and RVR/VIS of an ILS approach?
Look at the jeppesen chart of “VCBI-ILS Z Rwy 04 ”.
why the DAs are more than 200+RwyElev,and RVRs are more than 550m,
What factors determine the DA(DH) and RVR/VIS of an ILS approach?
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While only RL will be sufficient at night for the aircraft to take off, both RL and RCLM are required to take off during the day. Isn't it illogical?
While only Runway Lights (RL) will be sufficient at night for the aircraft to take off, both RL and Runway Centre Line Markings (RCLM) are required to take off during the day. Isn't it illogical? The ...
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Which transmissometer measures the RVR value specified in the takeoff limits section? TDZ? MID? Or Rollout?
Which transmissometer measures the RVR value specified in the takeoff limits section? TDZ? MID? Or Rollout (RO)? If there are 3 transmissometers for the runway at an airport, which transmissometer ...
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Although 2 RVR device symbols are given in the airport planview, there are 3 RVRs (TDZ,MID,RO) in the takeoff limits section. How is this possible?
Although 2 RVR device symbols are given in the airport planview, it is written in the takeoff minimums section that all 3 RVR values (TDZ, Mid, Rollout) must be provided for the departure limits. MID ...
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Are ILS approaches taught as part of instrument rating?
Are ILS approaches taught as part of instrument rating? What categories specifically?
CAT I?
CAT II?
CAT III A?
CAT III B?
CAT III C?
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What does "half of the horizon circle" means?
The definition of Prevailing Visibility is:
"Prevailing visibility is the horizontal distance over which objects or bright lights can be seen and identified over at least half of the horizon ...
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What is Tendency of RVR?
What does tendency of RVR (Runway Visual Range) mean and why down and up have the same values?
This is from AWOS(Automated Weather Observing System)
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What are the Requirements for the implimentation of Low Visibility Procedures at an airport?
So I was wondering if the RVR at an airport is reported above CAT I conditions for eg 1400 Meters etc but the Visibility is 50 to 100 Meters then would the pilots carry out non instrument approach or ...
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How is Horizontal Visibility and RVR related and how does it affect the Low Visibility Operations? [duplicate]
So on my foggy landing the METAR 9 minutes before the touchdown stated Horizontal Visibility as 0000 and RVR 100
whereas the metar 21 minutes after my landing stated Horizontal Visibility 0100 and ...
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How can a touchdown zone RVR report for one runway be different than the rollout report for the runway going the opposite direction?
I saw an RVR report in KSEA where 16C was 800 1200 1800 (touchdown zone, midpoint, rollout), and 34C was 1800 1200 300. I always thought the same scatterometers used for the rollout side on runway as ...
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What is the daytime visibility from within a cloud?
I ask this question from the context of formation-flying, such as during WW2. What is the visibility in a typical cloud during daytime? Can you lose your wingman right away? Were you at serious risk ...