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<DIV><FONT face=Arial size=2>I would put the weight at the tip. It should only
be about an ounce to balance. Tape on washers with clear packing tape to balance
and try. If that works out ok, slit the wing tip & epoxy the weights out of
sight. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>The advantage of going to the tip for ballast is
that you use about 1/3 as much and the spar is not carrying the load.
</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>There are probably more sophisticated tests, but I
think if you can pull & push moderate corners (competition style) with out
aileron input you are OK. I don't get too uptight about tracking a full
deflection loop, it is not in the schedule that way. Tune to "normal" operation
for best results. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I am sure not every one will agree though.
</FONT></DIV>
<DIV>John Ferrell <BR><A
href="http://DixieNC.US">http://DixieNC.US</A><BR></DIV>
<BLOCKQUOTE dir=ltr
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=richard.s@allied-callaway.com
href="mailto:richard.s@allied-callaway.com">Richard Strickland</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">NSRCA</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, July 31, 2004 12:58
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Wing weighting</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Gentlemen,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I made a large error a few weeks ago and totaled
the first Temptation. Got the second one done and had problems with the engine
and it had to go back. Wife had gone to California to help her Aunt
move--So I'm home alone, have to come home after work to let the dog out and
the field is too far away to practice after that with the old trusty
OMS. What to do--what to do.... Got to looking at the "totaled"
airplane and started tacking pieces back together--got to thinking hmmm--this
might actually become an airplane again--called Lee and asked him for some
cores and a chin cowl--told him I had two weeks of guilt free building
time and would he send a set. Well, it was right before the Nats and it
didn't happen--understandably.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>So I had this severely crunched left wing
panel--really NOT salvageable--now with all kinds of foam voids--wing socket
knocked loose and should have pitched it--but I didn't. I did some
judicious goobering (read HEAVY) of epoxy and foam as best I could, lined
up the wing halves back in the shucks with the wing tube--weighted them,
said a little prayer and let 'em set. Well, at least it started looking like a
wing. The socket was still a little wobbly and I still had to graft
about 25% of the crunched nose of it on and again--probably should've pitched
it. But nooo.... I cut a couple lite-ply spars, cut grooves for them
from the bottom side up to the socket sides and glued those in--back in the
shucks. Still didn't like the rigidity--so I did a couple spars on the top
with a contoured cross partial rib boxing the socket, grafted foam, resheeted
as needed, blah, blah, yada, yada... Could have done a set in this time.
Got the new cores yesterday.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Here's the Question: Since I've added about
2.5-3 oz to the panel with the average about 30% out in span; would I add a
similar amount of weight on the other at roughly the same spot or LESS
weight toward the end? You know--levers, arms and all
that.... I'll fly it as is and see how it reacts. You don't
have to tell me that I need to build another panel--that's a given. Having an
extra set of heavier panels around here in the spring wind may not
necessarily be a bad thing. It started out at 10 lbs.-7ozs.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks,</FONT></DIV>
<DIV><FONT face=Arial
size=2>
Richard</FONT></DIV></BLOCKQUOTE></BODY></HTML>