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<DIV>Nat,</DIV>
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<DIV>Could you explain why the differential should be different for non-center hinged? I understand that the mechanical configuration of non-center hinged requires differential to obtain same travel in both directions. However, the travel up and down should be close to equal. </DIV>
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<DIV>Thanks,</DIV>
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<DIV class=signature id=signature>--<BR>Vicente "Vince" Bortone</DIV>
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<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">-------------- Original message -------------- <BR>From: "Nat Penton" <natpenton@centurytel.net> <BR>
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<DIV><FONT face=Arial size=2>Tom</FONT></DIV>
<DIV><FONT face=Arial size=2>It's just something that is peculiar to the Southern Hemisphere.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Changing wing incidence will not help. Unless things are really screwed up <G>, at our roll rates, centrifugal forces are too low to cause a problem. You want zero differential, aero speaking ( same up/down if center hinged ).</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I find the best check is the fast half-roll in the vertical up. Regards Nat</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=Tom.Koenig@actewagl.com.au href="mailto:Tom.Koenig@actewagl.com.au">Koenig, Tom</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=nsrca-discussion@lists.f3a.us href="mailto:nsrca-discussion@lists.f3a.us">NSRCA Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, March 05, 2008 7:24 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] YS Questions+more</DIV>
<DIV><BR></DIV>
<DIV dir=ltr align=left><SPAN class=040220001-06032008><FONT face="Comic Sans MS" color=#0000ff>Hi Troy!</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=040220001-06032008><FONT face="Comic Sans MS" color=#0000ff></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=040220001-06032008><FONT face="Comic Sans MS" color=#0000ff>Thanks for the info. I thought you would be toiling away on the next developmental stage of these engines!!</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=040220001-06032008><FONT face="Comic Sans MS" color=#0000ff></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=040220001-06032008><FONT face="Comic Sans MS" color=#0000ff>Hopefully soon, I can find the time to get flying again. I am looking forward to running this little beast. I am still a little concerned in keeping it quiet though.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=040220001-06032008><FONT face="Comic Sans MS" color=#0000ff></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=040220001-06032008><FONT face="Comic Sans MS" color=#0000ff>Four blade props? I have some of the 18.1 x 12 two bladers but I just cant see how I'll shut the thing up with these paint stirrers??</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=040220001-06032008><FONT face="Comic Sans MS" color=#0000ff></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=040220001-06032008><FONT face="Comic Sans MS" color=#0000ff>Also-one more question to any of you out there in pattern land.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=040220001-06032008><FONT face="Comic Sans MS" color=#0000ff></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=040220001-06032008><FONT face="Comic Sans MS" color=#0000ff>I have struggled with aileron differential for years. I am just not happy with the rolls. I have tried various design fixes-but about the only one that seems to work is to get the wing back to 0-0 ( which can be achieved by a few ways, design, mix or thumbs) Differential itself does not seem to work if the wing is POA ( well...it works for half the roll !)</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=040220001-06032008><FONT face="Comic Sans MS" color=#0000ff>Another black magic fix appears to be to run parallel ailerons-but this only 'sorta' seems to fix it. I like the feel of equal% chord ailerons however.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=040220001-06032008><FONT face="Comic Sans MS" color=#0000ff></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=040220001-06032008><FONT face="Comic Sans MS" color=#0000ff>I am frustrated with it-I like my planes to roll as if they had a string up its ...........well you know!</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=040220001-06032008><FONT face="Comic Sans MS" color=#0000ff></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=040220001-06032008><FONT face="Comic Sans MS" color=#0000ff>OK-any 'secrets' I need to know??? Very good elevator work fixes it ( hence my 0-0 comment)</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=040220001-06032008><FONT face="Comic Sans MS" color=#0000ff></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=040220001-06032008><FONT face="Comic Sans MS" color=#0000ff>Tom</FONT></SPAN></DIV>
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