Will fuel melt this foam ?? Virg On Sat, 12 Aug 2006 20:22:15 +0200 "AVLEC" <av...@telkomsa.net> writes: > Take a look at the wings of the Whisper motor glider that I assemble, > they > are 100% 24DV polystyrene with a single uni-directional glass spar. > These > wings were tested to 10.6G by the designer in front of the CAA > inspectors > and thereafter to over 11G to see where it would fail.The test rig > collapsed > under the weight of > all the sandbags before it failed. Although the wing had a few > ripples in > the skin > afterwards, the structural integrity of the wing was still intact. > the wing > is made from a series of hotwired cores stuck together with micro > around the > premade spar and then glassed over with a 410g +/- 45deg layer glass > and a > sacrificial 200g layer at 0/90. No sanding necessary! They are 8 > metres long > each. > Regards > Dene Collett > KR2SRT builder > South africa > Whisper assembler > See: www.whisperaircraft.com > mailto: av...@telkomsa.net > ----- Original Message ----- > From: "Jaco Swanepoel" <jacosw...@yahoo.com> > To: <kr...@mylist.net> > Sent: Friday, August 11, 2006 10:06 > Subject: KR> Expanded foam > > > > Hi Guys, > > When I started building the wings, The EAA inspector on the > project > preffered that I use 32DB Polystyrene. It is extremely hard. I had > it > pre-cut by the supplier and glued into place. I used a belt sander > with > 100grid paper to profile it. That was a huge job. The 32DB does not > make > those little balls like normal Polystyrene. It makes dust when > sanded. I > could not press a hole in it with my finger. There are some photos > on my > website under the wings menu. > > > http://www.mykitlog.com/users/index.php?user=jacoswnpl&project=70 > > > > Regards, > > Jaco Swanepoel > > Pretoria > > South Africa > > KR2S, ZU-DVP > > > > > > --------------------------------- > > Stay in the know. Pulse on the new Yahoo.com. Check it out. > > _______________________________________ > > Search the KRnet Archives at > http://www.maddyhome.com/krsrch/index.jsp > > to UNsubscribe from KRnet, send a message to > krnet-le...@mylist.net > > please see other KRnet info at http://www.krnet.org/info.html > > > > > > _______________________________________ > Search the KRnet Archives at > http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > >
Virgil N. Salisbury - AMSOIL www.lubedealer.com/salisbury Miami ,Fl
