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 measures the RVR values specified as in the example given below? Or is it the average of all? (TDZ, MID, Rollout).
Which transmissometer measures the RVR value specified in the takeoff limits section? TDZ? MID? Or Rollout?
Modified 4 months ago
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1$\begingroup$ Apart from averaging them, one could also conceivably take the minimum RVR of the three (which would IMHO make the most sense, in that you might need the entire runway length in an RTO and having any part of the rwy covered in fog would be unsafe). $\endgroup$– TooTeaFeb 2 at 11:40
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