Demonstrated Cross Wind

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Panama Jack
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Demonstrated Cross Wind

Post by Panama Jack »

It has been a while since I've dealt with this topic, was hoping someone could refresh my memory.

On aircraft that publish a "Demonstrated Cross Wind" in their Limitations, how is this figure arrived at? I seem to remember that the Certification requirement is for the manufacturer to demonstrate the aircraft in a minimum cross wind that is 30% of Vso, although I could be wrong. Furthermore, please confirm that this is not an aircraft "limitation" per se.
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chewsta
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Post by chewsta »

20%Vso if no figure is given in the POH is a way to estimate the DCC.

The DCC is not a "limitation" as it does not appear in Part 2 of the POH.

The DCC is "the maximum xwind component an average pilot could handle using an average xwind technique and an aeroplane with average maintenaince in average condition" or something to that effect.

Hope that helps.
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sakism
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Post by sakism »

When an aircraft is designed it must be able to handle a x-wind that is 20% of Vso. This doesn't mean that it can't handle more - just that the company has no obligation to prove anything beyond that figure.
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