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Take Off charts type 1

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AdamHanratty created the topic: Take Off charts type 1

Hi I have a question regarding Take Off charts (Type 1).

I have been doing some exam preparation and have come across questions regarding an upslope of 1% for example. However the chart only allows for level or 2% upslope so I assume you need to extrapolate between the two for 1% however everyone I do this the answer is wrong and I can’t woek out why.

Any guidance on this would be much appreciated.
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  • John.Heddles
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  • ATPL/consulting aero engineer
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John.Heddles replied the topic: Take Off charts type 1

Not quite sure what Take Off charts (Type 1) are. Perhaps you can post a scan of the particular chart which is causing you trouble ?

However the chart only allows for level or 2% upslope

That doesn't sound quite right. A scan of the chart will allow us to resolve your question.

I assume you need to extrapolate between the two for 1%

Minor terminology point.

Extrapolating would occur if you had data for level and 2% and needed to figure data for 3%. I suggest you never do this .. more than a few traps unless you are very careful

Interpolating is the term you are after.

Engineering specialist in aircraft performance and weight control.
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