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Linear Take-off Chart, RPL/PPL vol 2, pg 20/21, 10kt headwind but 5kts (errata?)

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t117tim created the topic: Linear Take-off Chart, RPL/PPL vol 2, pg 20/21, 10kt headwind but 5kts (errata?)

Hello,
On page 20/21 of RPL/PPL vol 2, there is a worked explanation of the Linear Take-off chart.

The 'conditions' spell out there is a 10kt headwind.

Yet, at step 5 and on the chart page 21, ... the example uses 5kts.

There is errata for the graph (18.03.2020) but my book seems identical to the correction.

Am I missing something or why do you use 5kts and not 10kts.

Thanks, Tim
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  • John.Heddles
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  • ATPL/consulting aero engineer
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John.Heddles replied the topic: Linear Take-off Chart, RPL/PPL vol 2, pg 20/21, 10kt headwind but 5kts (errata?)

Ah, there may be a subtle problem with the question, here. As I don't have a copy of the documents, might I be able to request that you post a scan of the relevant bits so I can see what it was with which you were faced.
Engineering specialist in aircraft performance and weight control.
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t117tim replied the topic: Linear Take-off Chart, RPL/PPL vol 2, pg 20/21, 10kt headwind but 5kts (errata?)

Please find attached.
Thanks for taking the time.
Regards, Tim.
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bobtait replied the topic: Linear Take-off Chart, RPL/PPL vol 2, pg 20/21, 10kt headwind but 5kts (errata?)

Tim
Not your problem Tim. The question text says a 10kt wind but the working shows a 5 kt wind. That's our error. I've made the necessary correction. Thanks for your feed-back. Hard to believe that something like that sat there for so long and you are the first to notice it! Congratulations....
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