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<DIV>Ted, in my experience it makes no difference as long as the horn is located
correctly to produce symmetrical throw top and bottom. More difficult to do that
with a top hinged surface than a center hinged surface, so be aware of this
pitfall. Yet, the top hinged surface is much easier to seal than a center hinged
surface, so there are always compromises in everything we do. </DIV>
<DIV> </DIV>
<DIV>Personally, I always center hinge my surfaces. </DIV>
<DIV> </DIV>
<DIV>MattK</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>In a message dated 11/26/2004 10:35:41 AM Eastern Standard Time,
tedsander@comcast.net 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>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">About to head into
the shop to start hacking ailerons out of my wing cores. For appearance
sake, I had planned to top hinge them. I take it from the discussion,
that the way the surface is hinged has no noticeable effect in flight –
provided the gap is sealed? Correct?</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Ted
Sander</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Tahoma color=black
size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: Tahoma">-----Original
Message-----<BR><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B>
discussion-request@nsrca.org [mailto:discussion-request@nsrca.org] <B><SPAN
style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Bill Glaze<BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> </SPAN></FONT><FONT face=Tahoma
color=black size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: Tahoma">Friday,
November 26, 2004</SPAN></FONT><FONT face=Tahoma color=black size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: Tahoma">
</SPAN></FONT><FONT face=Tahoma color=black size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: Tahoma">8:53
AM</SPAN></FONT><FONT face=Tahoma color=black size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: Tahoma"><BR><B><SPAN
style="FONT-WEIGHT: bold">To:</SPAN></B> discussion@nsrca.org<BR><B><SPAN
style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: wing tip
shape</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman"
color=black size=3><SPAN style="FONT-SIZE: 12pt"></SPAN></FONT> </P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=black
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Yep--"Figure 8"
stitch, with heavy weight waxed thread. Worked just fine, too.
Bill Glaze<BR><BR><A title=mailto:Rcmaster199@aol.com
href="mailto:Rcmaster199@aol.com">Rcmaster199@aol.com</A>
wrote:<BR><BR></SPAN></FONT></P>
<DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=black
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Lance, the rounded
leading edge of the control surface was practiced way back in the golden
(stone?) age of model aviation, when the hinge material was plain thread.
Believe it or not, the control surfaces were literaly sewen into the wing or
stab or fin. Surface actuation essentially allowed the surface to "roll", ie-
it did not pivot about a single axis as present set-ups
do</SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=black
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=black
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Yor observation is
correct: a rounded edge hinged with present hinges, will tend to
bind.</SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=black
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=black
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">MattK</SPAN></FONT></P></DIV></DIV></FONT></BLOCKQUOTE></DIV>
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