Hi Larry Have you ay pics of that?
----- Original Message ----- From: "larry flesner" <fles...@midwest.net> To: "KRnet" <kr...@mylist.net> Sent: Monday, August 15, 2005 7:25 PM Subject: KR> pitot/static location, problems > > the wing splits the slip stream and this is what causes it, dead air >>in front of the >>leading edge. Static and pitot should be together like AFY to minimize >>error, >>Adrian > ++++++++++++++++++++++++++++++++++++++++++++++++++++ > > The system outlined on page 74 of the manual works just fine > with very little error, or at least it does in my case. The manual > cautions you to extend the pitot/static tubes at least 2 1/2 inches > below the wing to eliminate error. I think I went about 4 inches > with mine and it appears to be accurate to within a few mph at > cruise. In a no wind condition it matches my GPS ground speed > to within 2 or 3 mph. It is less accurate at high angles of attack > as any fixed system will be. The best part is that it doesn't get > broken off or bent from people walking in to it. The lead edge > of my P/S tubes are behind the lead edge of the wing. > > To mount, cut a small rectangular piece of thin aluminum, drill > two holes for the P/S tubes that touch each other, form the alum > to the shape of the lower wing surface, slip the alum over the tubes > and use some 5 min epoxy (JB Weld,etc.) to secure the tubes > to each other and to the alum plate. Use screws or bolts through > the skin to attach. Some type of reinforcement on the back > side would be advisable. Scrape out some foam on the inside > and flox in a small piece of alum or 3/32" ply with some blind > nuts or equivelent. > > If I had P/S tubes that extended even 10 inches forward of the > lead edge and there were hugh errors, I'd be looking for other > problems in the system besides the P/S location / length. > I've seen a 4 inch pitot tube sticking out of the nose of a pusher > that seemed to work just fine. > > As always, your results may vary......... > > Larry Flesner > > > > _______________________________________ > 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 > --- > [This E-mail scanned for viruses by Declude Virus] > > --- [This E-mail scanned for viruses by Declude Virus]
