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<DIV><FONT face=Arial size=2>The elevator mix I went after was so that at
"landing pattern speed" (downwind to base leg), the initial flip of the switch
would not cause a noticeable pitch change. After that point, it doesn't
matter a whole lot since it's coming down in a very positive way, so
you're soon leaning back on a little up for the rest of the approach.
>From what I read in other posts, I might not be using as much spoiler deflection
as some others. I don't have a whole lot of elevator mix, just a few
pct. Similar amounts work on my Temptation and Focus II.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Ed</FONT></DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=brett.terry@gmail.com href="mailto:brett.terry@gmail.com">brett
terry</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, May 13, 2006 9:58
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] Air
Breaks</DIV>
<DIV><BR></DIV>the spoilerons decrease the apparent AOA of the wing, in
essence giving the wings "washout" effect. If I remember correctly, at
the same speed there is actually less flow separation with the spoilerons
activated, despite the decrease in total lift. The effective wing
loading increases (relative to the amount of lift generated), but the wing is
simultaneously resistant to tipstalling and the plane's ability to penetrate
increases. Perhaps the decrease in chordwise flow separation precludes
the vortices which create spanwise flow? I am just speculating at this
point. <BR><BR>Back when I flew slope soarers some of my lighter planes would
not land without spoilerons deflected. The rotor would just toss them
about with devastating results. With the spoilerons up the plane would
punch right through and was much less likely to tipstall. <BR><BR>I also had
little luck creating an elevator mix. I haven't tried the spoilerons on
a pattern plane for many years now, but I remember some planes pitched up
while others pitched down, and the rate and magnitude of pitch change was
speed-sensitive. <BR><BR>
<DIV><SPAN class=gmail_quote>On 5/13/06, <B class=gmail_sendername>Ed
Deaver</B> <<A
href="mailto:divesplat@yahoo.com">divesplat@yahoo.com</A>> wrote:</SPAN>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">
<DIV>
<DIV>I use the "spoilers" as we call them a little different than has been
mentioned. </DIV>
<DIV> </DIV>
<DIV>Use 10-25% up ailerons but I don't mix in any Elevator. My
reasons are simple, don't need it for landing. As I am flying the
downwind leg and activate the spoilers the plane pitches up, and actually
have used them for spins on very calm days, but as soon as the plane slows
down a bit it flies level. For me to add the mix in destroys the glide
path I like. </DIV>
<DIV> </DIV>
<DIV>The spoilers do have a very noticeable effect on cross wind landings
suprisingly, eliminating a lot of the choppy effect but I don't understand
why.</DIV>
<DIV> </DIV>
<DIV>Have done this method on 3 different style planes all with the same
result. </DIV>
<DIV> </DIV>
<DIV>ed</DIV>
<DIV><SPAN class=e id=q_10b3028fce4e24ee_1><BR><BR><B><I>John Pavlick <<A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:jpavlick@idseng.com" target=_blank>
jpavlick@idseng.com</A>></I></B> wrote:</SPAN></DIV>
<DIV></DIV></DIV>
<DIV><SPAN class=e id=q_10b3028fce4e24ee_3>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: rgb(16,16,255) 2px solid">Bill,
<BR>What plane are you trying this on? I have my both my Focii set up with
this<BR>and I like it. I use ailerons up and down elevator. In Futaba land
I have<BR>+30% Flaps (ailerons up) [= ~ 5 degrees] and -20% elevator
(down) but you'll <BR>need to experiment. On some planes I use very little
down elevator in the<BR>mix, I just do it manually when I land. I found
that using the "airbrakes"<BR>helps me to be able to transition into a
nearly flared condition very early <BR>on final without worrying about any
tip stalling. You basically head<BR>downwind, chop the power, hit the
airbrakes and point the nose down. When<BR>you get close, start to raise
the nose and bleed off speed. You can then <BR>drag the plane to the mark
with a little power if you need to. Try it at a<BR>field where you have
some room. You may find that you undershoot the first<BR>few landings
until you get used to how the plane comes down with the <BR>airbrakes
on.<BR><BR>John Pavlick<BR><A
onclick="return top.js.OpenExtLink(window,event,this)"
href="http://www.idseng.com"
target=_blank>http://www.idseng.com</A><BR><BR><BR>> -----Original
Message-----<BR>> From: <A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:nsrca-discussion-bounces@lists.nsrca.org"
target=_blank>nsrca-discussion-bounces@lists.nsrca.org</A><BR>>
[mailto:<A onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:nsrca-discussion-bounces@lists.nsrca.org"
target=_blank>nsrca-discussion-bounces@lists.nsrca.org </A>]On Behalf
Of<BR>> Bill Markovitz<BR>> Sent: Saturday, May 13, 2006 10:00
AM<BR>> To: <A onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:nsrca-discussion@lists.nsrca.org"
target=_blank>nsrca-discussion@lists.nsrca.org </A><BR>> Subject:
[NSRCA-discussion] Air Breaks<BR>><BR>><BR>> I'm interested in
using the air brake function for<BR>> slower and more controlled
landings. Any suggestions<BR>> for a starting point on the aileron and
elevator <BR>> throws would be appreciated. Is it better to have
the<BR>> ailerons up and the elevator down or the ailerons down<BR>>
and the elevator up?<BR>><BR>> Thanks, Bill :)<BR>><BR>>
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