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Old 19th Apr 2011, 07:44
  #47 (permalink)  
FlightDetent

Only half a speed-brake
 
Join Date: Apr 2003
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Age: 46
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This becomes repetitive.

Here's the full sentence (my bolding):
The reported RVR/visibility value representative of the initial part of the take-off run can be replaced by pilot assessment.

First of all, this waiver is not included with the specific conditions under which you can reduce RVR below 150 m. No replacing a reported value for 125m ops is allowed > 80/125/125 is no go.

Second, it allows an operator to replace a reported value. I.e. if the readout would be missing > the xxx/150/150 situation is not solved through this note, but through other paragraphs.

Third, for 125/125/125 a 90 m visual segment is required, airbus geometry provides, so far so good. But for xxx/125/125, a visual segment 90 m only translates to 112,5/125/125 > the "RVR achieved" condition is not met by such pilot observation.

Pilot RVR assesment is one thing, replacement of reported RVR/VIS value another. I do believe that a non-LVO operator could take off with 350/1800/800 if pilot sees down the runway, replacing the reported value of initial part of TOR. I do believe that 100/125/125 cannot be replaced once reported.

Sincerely,
FD (the un-real)
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