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Official V-speed definitions?

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CaptCrispy
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Official V-speed definitions?

Postby CaptCrispy » Wed Apr 04, 2012 8:15 am

Anyone know if and where there are official (ICAO, EASA, UK CAA) definitions of v-speeds?
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Keef
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Re: Official V-speed definitions?

Postby Keef » Wed Apr 04, 2012 8:44 am

You can see the FAA's list here.

Add VYSE Speed for best rate of climb with one engine out (on a twin).

I'm sure the CAA etc lists are around, but this list'll do for most folks.
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LD1Racing
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Postby LD1Racing » Wed Apr 04, 2012 8:45 am

Don't know if you've seen this already, but Wikipedia's Big Book of Lies has this:

http://en.wikipedia.org/wiki/V_speeds

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Re: Official V-speed definitions?

Postby CaptCrispy » Wed Apr 04, 2012 8:54 am

Thanks all, I've seen these other lists but was curious if there are official definitions from EASA and/or CAA.
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Postby Keef » Wed Apr 04, 2012 9:11 am

They just might be in LASORS somewhere, although I don't recall seeing them there. The index is no help.
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Re: Official V-speed definitions?

Postby CaptCrispy » Wed Apr 04, 2012 9:18 am

I'm a very fussy person and like to find official sources of information, LASORS helps to an extent, but no definitions :(
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Postby Keef » Wed Apr 04, 2012 9:32 am

If you have the patience, then go here.

You can browse the entire 14CFR on the web, which should satisfy the desire for aeronautical detail. I don't know of a similar site for EASA.
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Re: Official V-speed definitions?

Postby Anonystude » Wed Apr 04, 2012 9:38 am

I suspect the answer will be hiding somewhere in the CS-23/CS-25 type documents.

Edit: http://www.easa.europa.eu/agency-measur ... nt%202.pdf at pp21 et seq has a list of basic definitions, but nothing particularly technical.

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Postby Keef » Wed Apr 04, 2012 10:45 am

That's a good Eurolist, but still no Vyse which is one of the more important ones for certain pilots!
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Re: Official V-speed definitions?

Postby Anonystude » Wed Apr 04, 2012 10:57 am

You're right, Keef, and that's odd! There's pages and pages in Stinton's Flying Qualities and Flight Testing of the Aeroplane at pp123-126, which does feature Vyse. Don't know why the Eurotechs didn't feature it in the Definitions. If I have the time I'll poke around in CS-25, in which it is certain to be hiding.

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Re: Official V-speed definitions?

Postby CaptCrispy » Wed Apr 04, 2012 11:38 am

Thanks all, much better.
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Postby T67M » Sat Apr 28, 2012 1:43 pm

Anonystude wrote:I suspect the answer will be hiding somewhere in the CS-23/CS-25 type documents.

Edit: http://www.easa.europa.eu/agency-measur ... nt%202.pdf at pp21 et seq has a list of basic definitions, but nothing particularly technical.


I agree - it's a useful first stab at a list, but there are some surprising omissions - for example, Vno is missing.


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