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1. 01:26 PM - Re: Re: Non-Commander Question: Biplanes (Peter Bichier)
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| Subject: | Re: Commander-List: Non-Commander Question: Biplanes |
The staggering also helps to avoid both wings stalling at the same time;
usually the lower smaller wing stalls first, then if you continue with that
same AOA or increase it, then the second wing stalls.
p.
On Sat, Jan 19, 2013 at 8:15 AM, yourtcfg@aol.com <yourtcfg@aol.com> wrote:
> **
> You are correct, the stagger is to help negate the interferance of the
> wings. It also helps extend the wing cg by avereging the the center of li
ft
> over both wigs. The antinov wings are probably far enough apart that they
> bony effect wash other. Don't know about the ch? Jb
>
> Sent from my Verizon Wireless Phone
>
> ----- Reply message -----
> From: "Andrew & Bridget Watson" <andrew.bridget@telus.net>
> To: <commander-list@matronics.com>
> Subject: Commander-List: Non-Commander Question: Biplanes
> Date: Fri, Jan 18, 2013 9:14 am
>
>
> Hello everybody,
>
> Forgive me bringing a biplane aerodynamics question to the Commander foru
mbut hopefully somebody can answer this
> .
>
> I was always under the impression that a biplane=92s wings were staggered
wither
> negatively (as in the Beech Staggerwing) or positively (e.g. Tiger Moth)
so
> the bottom and top wings do not interfere with each other, so negating
> some lift. However, looking at a picture of the Antonov An2/An3 Colt,
> there is no noticeable stagger. Does the stagger negate lift conflict? Or
> was I wrong in my thinking?
>
> I do understand that the stagger changes the centre of lift on the wings,
> that it improves stability, and so on, but do unstaggered wings interfere
,
> even to a slight degree, with lift generation?
>
> Thanks in advance.
>
> Andrew
>
> *
>
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