<DIV id=RTEContent>I am sure that this is and oversimplified approach to the problem, but being a regular subscriber to Occam's Razor quarterly demands that I ask. For my own information, could the funky pitch problem have anything to do with the oddly shaped rudder that designers of the Stik family of planes are so fond of using?<BR><BR><B><I>Rcmaster199@aol.com</I></B> wrote: <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid"> <META content="MSHTML 6.00.2900.2802" name=GENERATOR><FONT id=role_document face=Arial color=#000000 size=2> <DIV> <DIV>The simplest, quickest fix is to turn the wing up side down so the beastie has anhedral. Change nothing else initially.</DIV> <DIV> </DIV> <DIV>MattK</DIV> <DIV> </DIV> <DIV>In a message dated 1/30/2006 1:54:57 PM Eastern Standard Time, d.pappas@kodeos.com writes:</DIV> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px
solid"><FONT style="BACKGROUND-COLOR: transparent" face=Arial color=#000000 size=2> <DIV><SPAN class=312584818-30012006><FONT face=Arial color=#0000ff size=2>Hi Gang, Hi Ken,</FONT></SPAN></DIV> <DIV><SPAN class=312584818-30012006><FONT face=Arial color=#0000ff size=2>The enswer probably lies in a combo of what Lance and Ron offered.</FONT></SPAN></DIV> <DIV><SPAN class=312584818-30012006><FONT face=Arial color=#0000ff size=2>How much is your buddy willingg to cut or add to fix the problem.</FONT></SPAN></DIV> <DIV><SPAN class=312584818-30012006><FONT face=Arial color=#0000ff size=2>A ventral strake/subfin will be a great experiment, and I am sure that a bunch of us would like to hear the results.</FONT></SPAN></DIV> <DIV><SPAN class=312584818-30012006><FONT face=Arial color=#0000ff size=2>Raising the stab would be terribly invasive, and also interesting.</FONT></SPAN></DIV> <DIV><SPAN class=312584818-30012006><FONT face=Arial color=#0000ff size=2>Make sure the ship flies with
a styraight elevator first.</FONT></SPAN></DIV> <DIV><SPAN class=312584818-30012006><FONT face=Arial color=#0000ff size=2>later,</FONT></SPAN></DIV> <DIV><SPAN class=312584818-30012006><FONT face=Arial color=#0000ff size=2>Dean</FONT></SPAN></DIV> <DIV><SPAN class=312584818-30012006><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV> <DIV> </DIV> <div><FONT face="Times New Roman">Dean Pappas</FONT> <BR><FONT face="Times New Roman">Sr. Design Engineer</FONT> <BR><FONT face="Times New Roman">Kodeos Communications</FONT> <BR><FONT face="Times New Roman">111 Corporate Blvd.</FONT> <BR><FONT face="Times New Roman">South Plainfield, N.J. 07080</FONT> <BR><FONT face="Times New Roman">(908) 222-7817 phone</FONT> <BR><FONT face="Times New Roman">(908) 222-2392 fax</FONT> <BR><FONT face="Times New Roman">d.pappas@kodeos.com</FONT> </div> <BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px"> <DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> nsrca-discussion-bounces@lists.nsrca.org [mailto:nsrca-discussion-bounces@lists.nsrca.org]<B>On Behalf Of </B>patterndude@comcast.net<BR><B>Sent:</B> Monday, January 30, 2006 1:44 PM<BR><B>To:</B> NSRCA Mailing List<BR><B>Subject:</B> Re: [NSRCA-discussion] Trimming question<BR><BR></FONT></DIV> <DIV>Ken,</DIV> <DIV>Not always. In level flight the neg incidence will require up trim. In KE flight, the tail has an increased weighting in the balance of forces and this uptrim can be more than needed.</DIV> <DIV>--Lance</DIV> <DIV> </DIV> <DIV> </DIV> <DIV class=signature id=signature>--<BR>District 6 AVP <BR>www.aeroslave.com</DIV> <DIV> </DIV> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">-------------- Original message -------------- <BR>From: "Ken Thompson" <mrandmrst@comcast.net> <BR><BR>> Wouldn't negative incidence cause it to push to the gear, not the
canopy? <BR>> <BR>> Ken <BR>> ----- Original Message ----- <BR>> From: "Lance Van Nostrand" <PATTERNDUDE@COMCAST.NET><BR>> To: "NSRCA Mailing List" <NSRCA-DISCUSSION@LISTS.NSRCA.ORG><BR>> Sent: Monday, January 30, 2006 12:40 AM <BR>> Subject: Re: [NSRCA-discussion] Trimming question <BR>> <BR>> <BR>> > Not many responses to this one, but here's my thought. The wing incidence <BR>> > is way negative and the CG is aft. I got myself into that situation once <BR>> > and didn't catch it for a while. Inverted flight was fine but the plane <BR>> > was <BR>> > squirrely and the up elv trim was more effective in knife edge than level <BR>> > flight, resultin! g in canopy pull. <BR>> > --Lance <BR>> > <BR>> > ----- Original Message ----- <BR>> > From: "John Pavlick" <JPAVLICK@IDSENG.COM><BR>> > To: "NSRCA Discussion" <NSRCA-DISCUSSION@LISTS.NSRCA.ORG><BR>> > Sent: Friday, January 27, 2006 10:31
PM <BR>> > Subject: [NSRCA-discussion] Trimming question <BR>> > <BR>> > <BR>> >> Ok here's a good one. The owner of the L.H.S. asked me what I thought <BR>> >> about <BR>> >> this and I couldn't come up with a good answer. He has a Hangar 9 Ugly <BR>> >> Stik - the real big one. I can't remember exactly what it's called. Guess <BR>> >> it <BR>> >> has a gas motor in it. It's big. He says he has it trimmed so it will fly <BR>> >> inverted with just a very slight bit of down elevator (almost none). Ok, <BR>> >> so <BR>> >> it's not nose heavy, maybe even a little tail heavy. Now, when he flies <BR>> >&! gt; it <BR>> >> knife edge (either side) it pulls severely to the canopy. I mean like it <BR>> >> will fly a complete circle. It needs almost 3/4 down elevator to fly <BR>> >> straight. It's beyond a mix - fix. He also says that it has a bit of roll
<BR>> >> couple when flying level (not knife edge) but it doesn't pitch severely <BR>> >> up <BR>> >> or down under these conditions. Any thoughts? I guess you can rule out <BR>> >> C.G. <BR>> >> because if anything it should pull to the belly considering how it's <BR>> >> trimmed <BR>> >> to fly level upright and inverted. I haven't flown it so I can't add too <BR>> >> much more. He builds OK so I don't think there's anything way out of <BR>> >> alignment, but again I haven't seen it yet so maybe there is. What should <BR>> >> I <BR>> >> look for if I get my hands on it to try and help him? </BLOCKQUOTE></BLOCKQUOTE></FONT></BLOCKQUOTE></DIV> <DIV></DIV> <DIV> </DIV></FONT>_______________________________________________<BR>NSRCA-discussion mailing list<BR>NSRCA-discussion@lists.nsrca.org<BR>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</BLOCKQUOTE><BR></DIV>