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<h1>How To guide</h1>
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<div align="right"><b><font size="3"><span class="write"><b><font size="3"><span class="write"><b><font color="#CC9900">>></font></b>
Pages <a href="vacuum-bagging.htm">1</a> <a href="vacuum-bagging-2.htm">2</a>
<a href="vacuum-bagging-3.htm">3</a> <a href="vacuum-bagging-4.htm">4</a>
<a href="vacuum-bagging-5.htm">5</a> <font color="#CC9900">6</font><b><font size="3"> <span class="write"><font color="#CC9900">
</font><a href="vacuum-bagging-7.htm">7</a></span></font></b></span></font></b></span></font></b></div>
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<h1>Vacuum Bagging a High-Performance Wing</h1>
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<p class="write">With much anticipation, open the bag
and remove the tape. You'll either jump for joy or
gasp in horror. The TE always warps to some degree-usually
not too badly. If it looks hopeless, it probably isn't,
and if it is, it's repairable. Remember that most
of this gets trimmed off… Move on to the next
step.</p>
<p class="write"> Remember what I said about denting
the wing while working on it. You have to be careful
as even your forearm muscle can put big dents in the
wing while you hold it down. You can fix these with
light spackle, but it's better not to have to at all.<br>
<br>
Using the sanding stick, hold the wing in the cores
and sand the LE and tips. Don't sand in an up/down
motion or you will break the balsa off rather than
sand it. When this is done, measure the TE using the
tip chord (minus the LE which isn't there yet) and
cut the TE to the proper size. Remembering that you'll
be sanding the TE to a sharp point, decide now if
it's too warped to be sanded. If so, trim the warped
TE off and butt-glue a piece of balsa in it's place.
Use a razor plane to rough it down to the proper shape
and continue with the rest of the wing.</p>
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<td width="323"><img src="vacuum-bagging/outofbagweight.jpg" width="300" height="225" border="1"></td>
<td valign="top" width="304">Here's where my wing is weight
wise now.</td>
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<p><span class="write">Glue the LE in place, sand the
tips flush, then add your wingtips. Here's where your
magic sanding stick comes to the rescue! Holding the
wing in the core beds any way you can, start roughing
and shaping the LE. When this is done, do the same
to the tips. Finish shaping the LE and tips now, if
the tips look too boxy, hit them up with sandpaper
by hand. </span></p>
<p><span class="write">Start shaping the TE with the
sanding stick. Pay attention to the direction of the
small warps in the wing, this is where you fix them.
You want to work towards having a wing that's almost
razor sharp. Give the TE of the tips a drop of thin
CA to keep them ding resistant and sand them smooth
again. </span></p>
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<td width="323"><img src="vacuum-bagging/shaped.jpg" width="300" height="225" border="1"></td>
<td valign="top" width="304" class="write">Sand the top
and bottom of the wing to smooth it out and remove any
glue that bled through the skins during bagging. You
should now have a very pretty wing!</td>
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<td width="323"><img src="vacuum-bagging/aileroncutout.jpg" width="300" height="225" border="1"></td>
<td valign="top" width="304" class="write">Mark off the
root and tip of the ailerons and place the wing in the
core bed. Do this from the top. Cut out the aileron
slits with a fine tooth saw. Turn the wing over and
mark the aileron gap line using the slits as a guide.
Draw another line 3/32" behing that one. Gently
cut each line out. Make several passes on each with
an Exacto blade, being aware of the raspy feeling that
comes when you hit the glass on the underside of the
top skin. Using an Exacto blade or small flat-head screwdriver,
pick the balsa and foam out of the aileron gap. Do not
flex the ailerons until you complete the next step!</td>
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<td width="324"><b><font size="3"><span class="write"><b><font color="#CC9900">>></font></b>
<a href="vacuum-bagging-7.htm">Next</a><b><font color="#CC9900"></font></b><b><font size="3"></font></b></span> </font></b></td>
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Pages <a href="vacuum-bagging.htm">1</a> <a href="vacuum-bagging-2.htm">2</a>
<a href="vacuum-bagging-3.htm">3</a> <a href="vacuum-bagging-4.htm">4</a>
<a href="vacuum-bagging-5.htm">5</a> <font color="#CC9900">6</font><b><font size="3"> <span class="write"><font color="#CC9900">
</font><a href="vacuum-bagging-7.htm">7</a></span></font></b></span></font></b></span></font></b></div>
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<div align="center"><font color="#000000"><font color="#000000"><font size="2" color="#CC9900">Home
of the Sliver 400, the US Nationals winning S400 pylon racer, specialists
in fast composite electric model planes<b>.</b></font></font><font size="2" color="#CC9900"></font></font></div>
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