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<DIV><SPAN class=935404417-11112004><FONT face=Arial color=#0000ff size=2>Hello
Mike,</FONT></SPAN></DIV>
<DIV><SPAN class=935404417-11112004><FONT face=Arial color=#0000ff
size=2>Humidity is a problem, and your dehumidifier is a good
idea.</FONT></SPAN></DIV>
<DIV><SPAN class=935404417-11112004><FONT face=Arial color=#0000ff size=2>You
should only need to keep the relative humidity under about 50%,
generally.</FONT></SPAN></DIV>
<DIV><SPAN class=935404417-11112004><FONT face=Arial color=#0000ff size=2>An
unsupported sheet of wood may buckle, and this is generally a sign that the wood
was sawed into sheets before it was properly dried, or cut skewed to the grain
of the log.</FONT></SPAN></DIV>
<DIV><SPAN class=935404417-11112004><FONT face=Arial color=#0000ff size=2>The
situation gets better when the airplane is built, but I have had an airplane
change trim after flying half a flight in rainy conditionns at a major
contest.</FONT></SPAN></DIV>
<DIV><SPAN class=935404417-11112004><FONT face=Arial color=#0000ff size=2>Three
weeks of Summer heat restored the plane's original
trim. </FONT></SPAN></DIV>
<DIV><SPAN class=935404417-11112004><FONT face=Arial color=#0000ff size=2>Since
then, I have not honeycombed my foam wings.</FONT></SPAN></DIV>
<DIV><SPAN class=935404417-11112004><FONT face=Arial color=#0000ff size=2>I had
no such problem with an earlier, non-honeycombed, plane that I flew in
heavy rain, at the '89 Team trials in Pensacola.</FONT></SPAN></DIV>
<DIV><SPAN class=935404417-11112004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=935404417-11112004><FONT face=Arial color=#0000ff size=2>How
humid is your basement? You may need that dehumidifier.</FONT></SPAN></DIV>
<DIV><SPAN class=935404417-11112004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=935404417-11112004><FONT face=Arial color=#0000ff
size=2>Regards,</FONT></SPAN></DIV>
<P><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> </P>
<BLOCKQUOTE>
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> discussion-request@nsrca.org
[mailto:discussion-request@nsrca.org]<B>On Behalf Of </B>shih
mike<BR><B>Sent:</B> Thursday, November 11, 2004 12:08 PM<BR><B>To:</B>
discussion@nsrca.org<BR><B>Subject:</B> question regarding building balsa wood
plane ?<BR><BR></FONT></DIV>Hi Builders, <BR>I got a quick question which
might sounds stupid to you. <BR>Usually it takes me about a year to finish
building a 60 size balsa wood pattern plane. I found the wood tends to twist
or warp a bit after sit on the bench in the basement for few months (half
finish). I use the de-humidifier to adjust the humidity at the basement. It is
kind of bothering me to have the machine on all the time. I don't know if the
humidity is really the cause? how long do you think that I can left the wood
or half finish plane sits in the basement without special care? <BR><BR>Thanks
very much
<DIV> </DIV>
<DIV>Mike </DIV>
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