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Rounding guide

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Jase88 created the topic: Rounding guide

Hey Guys,

I've recently started studying performance and I'm getting answers within 1 or 2 kg of the answers in the book due to rounding. I'm certain that I'm doing the questions correctly and i have been saving all rounding until the end for accuracy.

Someone on the PPE website said there was a rounding guide in the front of the PERF book for all formulas? I can't find it anywhere?! Is this because it's in the latest version of the book? I have the 2017 edition.

Thanks
#1

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  • John.Heddles
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  • ATPL/consulting aero engineer
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John.Heddles replied the topic: Rounding guide

Suggest two tacks you might take -

(a) run some forum searches on the question as there are numerous threads on this general subject

(b) post one of your typical question solutions and we can comment on what you are doing, specifically, and whether that might be good, bad, or indifferent.

Engineering specialist in aircraft performance and weight control.
#2

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Stuart Tait replied the topic: Rounding guide

G'day Jase

This is what you are referring to www.bobtait.com.au/images/Files/ETP%20PNR%20download%20.pdf

Cheers
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Jase88 replied the topic: Rounding guide

Hi Stewart,

Yep that's the one! Thanks very much!

Cheers
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Stuart Tait replied the topic: Rounding guide

Also please check out www.bobtait.com.au/updates-and-errata/22-cpl-performance-errata for all the updates you will notice that there is an quite a significant amount. My advice would be to source a newer copy.


Cheers
#5

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