Autoland HWC / TWC Adjustments
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Join Date: Mar 2004
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Autoland HWC / TWC Adjustments
Just wondering if anyone is able to answer a quick question about the autoland in the 757/767 (not sure if it is just these types or Boeings in general).
We had to do an autoland to BRS 27 with a tailwind the other day, so spent a fair bit of time in the books on the way there looking at the LDR etc. Something that caught my eye was the performance manual saying that a headwind will INCREASE the autoland's landing distance required (from the numbers at 50ft), and a tailwind will REDUCE it. I would have assumed that a decent headwind would reduce the groundspeed, and therefore LDR.
It wasn't a typo, as there was a note saying something to the effect of "note that these adjustments are the opposite of what you might expect" etc.
Any ideas?
Best wishes,
NW3
We had to do an autoland to BRS 27 with a tailwind the other day, so spent a fair bit of time in the books on the way there looking at the LDR etc. Something that caught my eye was the performance manual saying that a headwind will INCREASE the autoland's landing distance required (from the numbers at 50ft), and a tailwind will REDUCE it. I would have assumed that a decent headwind would reduce the groundspeed, and therefore LDR.
It wasn't a typo, as there was a note saying something to the effect of "note that these adjustments are the opposite of what you might expect" etc.
Any ideas?
Best wishes,
NW3
