Sender: "Marvin Kaye" <marv@lancaironline.net>
To: lml@lancaironline.net
Date: Thu, 30 Sep 2004 12:05:48 -0400
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From: "terrence o'neill" <troneill@charter.net>
References: <list-437520@logan.com>
Subject: Re: [LML] wing incidence indifference
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Also, are you assuming the relative wind at the tip and the root are the
same as at MAC, and not affected by planform, etc.?
If the subject is unintentional stalls -- resulting from gusts -- and
inferring that the incidence difference might result in a spin, should we
consider also the other characteristics of the configuration, such as CG,
horizontal tail volume and its own AOA, cleanness of airflow over the
vertical tail, and the direction of the airflow across or UP the rudder?
T

----- Original Message ----- 
From: "Dan O'Brien" <danobrien@cox.net>
To: "Lancair Mailing List" <lml@lancaironline.net>
Sent: Wednesday, September 29, 2004 07:52 PM
Subject: [LML] wing incidence indifference


> ...Consider an ES cruising along at 8,000 feet at a weight of 2,800 lbs,
> maintaining 220 mph. The MAC AoA is 2.32 degrees, the wing is working at a
> coefficient of lift of .205. The aeroplane encounters a  vertical gust,
> lets say 50 feet / sec. The wing at MAC now sees an AoA of 11.12, the Cl
is
> .98968 and the wing lift is 13,515 lbs...
>
> Roberto:
>
> Interesting information.  I'm curious as to where you got the data for the
> ES wing to do your calculations.  Would it be possible to provide this
> information?  If you can supply the calculations, I'd be interested in
> those as well.
>
> Thanks,
> Dan
>
>
> --
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