<br><font size=2 face="sans-serif">I've done several models this way, but have never elected to do a pattern ship this way. My reasons aren't verified by wind tunnel testing, but they are (hopefully) at least rational. </font>
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<br><font size=2 face="sans-serif">An aileron requiring 20 degrees of down throw requires a 20 degree bevel. When center hinged the disruption in the airfoil is equal on top and bottom of the wing, and is minimized. When top hinged, although it looks pretty, there is a major disruption on the bottom wing surface and almost none on top. I think the extreme size of the "vee" on the bottom is enough to affect the sensitive flight characteristice of a pattern plane. Add to that the fact that Advanced and Masters spend almost half their time inverted and you see you need an airfoil that is effective in both attitudes.</font>
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<br><font size=2 face="sans-serif">One thing I have contemplated, but not done, is offset hinged my ailerons. You know, the kind of hinging where the leading edge of teh aileron is rounded and the hingepoint pivot is at the center of the circle? This could be done light and would eliminate gaps altogether.</font>
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<br><font size=2 face="sans-serif">--Lance</font>
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<td><font size=1 face="sans-serif"><b>"Mike Turgeman" <mike@bartan.com></b></font>
<br><font size=1 face="sans-serif">Sent by: discussion-request@nsrca.org</font>
<p><font size=1 face="sans-serif">04/07/2003 03:07 AM</font>
<br><font size=1 face="sans-serif">Please respond to discussion</font>
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<br><font size=1 face="sans-serif"> To: <discussion@nsrca.org></font>
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<br><font size=1 face="sans-serif"> Subject: Re: Top Hinging Ailerons and Elevators</font></table>
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<br><font size=2 face="Arial">Hi all,</font>
<br><font size=2 face="Arial">I am flying this way for about 10 years. My method for hooking up the ailerons or elevator is to use the wing cover (monokote or other) as the hinge. All you need is to make sure that the bottom cover and the top one are joint together at the hinge line.</font>
<br><font size=2 face="Arial">With this method you get no gap aileron which has better response and the wing has a very nice one panel top view.</font>
<br><font size=2 face="Arial">I can send some photos off list.</font>
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<br><font size=2 face="Arial">Mike Turgeman</font>
<br><font size=2 face="Arial">Israel</font>
<br><font size=3 face="Times New Roman">----- Original Message ----- </font>
<br><font size=3 face="Times New Roman"><b>From:</b> </font><a href=mailto:stevebarlow@attbi.com><font size=3 color=blue face="Times New Roman"><u>Steve Barlow</u></font></a><font size=3 face="Times New Roman"> </font>
<br><font size=3 face="Times New Roman"><b>To:</b> </font><a href=mailto:discussion@nsrca.org><font size=3 color=blue face="Times New Roman"><u>discussion@nsrca.org</u></font></a><font size=3 face="Times New Roman"> </font>
<br><font size=3 face="Times New Roman"><b>Sent:</b> Sunday, April 06, 2003 1:22 AM</font>
<br><font size=3 face="Times New Roman"><b>Subject:</b> Top Hinging Ailerons and Elevators</font>
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<br><font size=2 face="Arial">Guys,</font>
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<br><font size=2 face="Arial">I'm building the CA Models Widebody 60/90, and it calls for hinging the ailerons and elevators from the top, as opposed to the standard middle hinge, double bevel type.</font>
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<br><font size=2 face="Arial">I've never done this before, and am a bit curious about the effects of hinging the surfaces this way, and also the actual steps, especially the location and direction of the hinge points themselves. These are foam wings, in case that wasn't clear.</font>
<br><font size=3 face="Times New Roman"> </font>
<br><font size=2 face="Arial">Can you guys help me out here, with maybe some general instructions, or a link to them?</font>
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<br><font size=2 face="Arial">Thanks in advance,</font>
<br><font size=2 face="Arial">Steve</font>
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