Wow did I speak before I looked. When looking back I found that only half my question went out about the error in the plans. Sorry netters. I am following Brian on this since I have the same question.
Steven Phillabaum Auburn Alabama not Alabamba > > From: <[email protected]> > Date: 2004/06/18 Fri AM 03:26:13 GMT > To: KRnet <[email protected]> > Subject: Re: KR> forward spar dimensions > > Brian, I did the exact calculations and the only response to my post of > "error in the plans" was. "oh really?" > Hope you find the answer. Im waiting. > > Steven Phillabaum > Auburn Alamaba > > > > From: "Brian Kraut" <[email protected]> > > Date: 2004/06/18 Fri AM 01:59:00 GMT > > To: "KRnet" <[email protected]> > > Subject: KR> forward spar dimensions > > > > When I laminated my spar caps I used wood a little oversize so I could plane > > it to the exact dimensions when they were done. Being someone who learned > > to measure in a machine shop and make parts to tollerances of a few ten > > thousandths of an inch, I was measuring everything with a set of dial > > calipers. While double and triple checking everything I realized that there > > is something weird in the dimensions in the plans. > > > > The 2S plans call for the center section front spars to be 2 5/32" wide > > which is about 2.1563". The outboard spars are supposed to be 1 15/16" at > > the root which is 2.9375". They each get skinned on both sides with 3/32" > > plywood. That makes the center spar about 2.344" which is also the distance > > betwen the faces of the attach fittings. The attach fittings on the outer > > spars go inside the inner fittings so we add the two 1/8" fittings to the > > inner spar to give us 2.375" which is about 30 thousandths wider than the > > space they go into. Obviously, the fittings will flex a little and you can > > make them fit, but why in the world would they not just make the center > > section spars 1/32" wider so the fittings will slide right in? > > > > Brian Kraut > > Engineering Alternatives, Inc. > > www.engalt.com > > > > > > _______________________________________ > > to UNsubscribe from KRnet, send a message to [email protected] > > please see other KRnet info at http://www.krnet.org/info.html > > > > > _______________________________________ > to UNsubscribe from KRnet, send a message to [email protected] > please see other KRnet info at http://www.krnet.org/info.html >
