<HTML><FONT FACE=arial,helvetica><FONT SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Arturo,<BR>
<BR>
I have played with true zero dihedral in the wing. I used this before computer radios with allthe mixing possibilities available to us, on a Kaos, and scared myself half to death first time I applied rudder. <BR>
<BR>
I found such a wing had to be mounted very close to the thrust line, in a true mid-wing configuration to fly well, without tucking hard down at the same time as rolling toward the canopy, when either rudder was applied.
<BR>
<BR>
Theoretically a true flat wing is supposed to require no aileron differential, but bottom line was it did not buy much of anything. <BR>
<BR>
Matthew T.<BR>
<BR>
<BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">----- Original Message ----- <BR>
From: "Zapata, Lisandro A." <LAZapata@pbsj.com><BR>
To: <discussion@nsrca.org><BR>
Sent: Wednesday, October 02, 2002 2:08 PM<BR>
Subject: wash-out<BR>
<BR>
<BR>
> Somebody one day mentioned me that he use some pattern planes with small<BR>
> wash-out.<BR>
> Any good/bad comments in the use of wash-out<BR>
> You need more or less corrections. Behavior at different speeds???<BR>
> <BR>
> And, Have anybody try to fly a plane with 0 dihedral (no use flat top of<BR>
> wing dihedral = small dihedral)<BR>
> It helps in anything??<BR>
> <BR>
> Arturo Z.</BLOCKQUOTE><BR>
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