---------------------------------------------------------- Lightning-List Digest Archive --- Total Messages Posted Mon 05/19/08: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:13 AM - Re: email (flylightning) 2. 07:47 AM - Re: email (Johnny Thompson) 3. 10:41 AM - Re: email () ________________________________ Message 1 _____________________________________ Time: 07:13:30 AM PST US From: "flylightning" Subject: RE: Lightning-List: email I will work on getting a drawing out on the web site so it can be duplicated..we use it for setting the wings to match.we set one, than set the next one to match.. Nick Otterback Arion Aircraft, LLC _____ From: owner-lightning-list-server@matronics.com [mailto:owner-lightning-list-server@matronics.com] On Behalf Of N1BZRich@aol.com Sent: Sunday, May 18, 2008 8:45 PM Subject: Re: Lightning-List: email In a message dated 5/17/2008 10:47:16 A.M. Eastern Daylight Time, cjk129@cox.net writes: Take a clear plastic tube with water in it. Line one wing up with the wing root. Line the water level at one end up with the leading edge where the wing meets the root. The tube goes under the wing and up to the trailing edge. Measure the distance from the water level at the other end, to the trailing edge. This measurement is the vertical height difference between the leading and trailing edges. Hi Colin, I used a "water level" extensively when rigging my Pitts. The neat thing about it is that it can be any length - such as wing tip to wing tip. The method you describe above should work. However, I think the new incidence jig that Lightning has come up with will be simple and likely do a more precise job when using one of the new digital levels. But as I said, your "water level" method will work. Blue Skies, Buz _____ Wondering what's for Dinner Tonight? Get new twists on family favorites at AOL Food. ________________________________ Message 2 _____________________________________ Time: 07:47:28 AM PST US From: "Johnny Thompson" <14az@mysprocketmail.com> Subject: Re: Lightning-List: email I used a simple system that worked well on N8WN. I put a 6" 2x6 directly above the aft "C spar" of the wing then placed the digital level on the 2x6 with the forward point of the level on the wing on top of the main spar. I repeated this mid span and then on the tip of the wing. As I suspected I had some (minor) difference in twist between the two wings but not enough to matter. I set the incidence on the left and the wing matched the karmen perfect. On the right I had to place downward force on the leading edge to bring the wing into 0.2 degree of the left wing. I then had to add micro balloon mix to the top forward of the karmen about 1/4" to bring it into alignment with the wing. The bottom on the wing is not a perfect match but with years of experience with composites this is about normal. Not a big deal at all. What matters is the aircraft flew hands off without any roll at all. Johnny ----- Original Message ----- From: N1BZRich@aol.com To: lightning-list@matronics.com Sent: Sunday, May 18, 2008 6:52 PM Subject: Re: Lightning-List: email In a message dated 5/17/2008 12:26:35 P.M. Eastern Daylight Time, clive.james@uk.bp.com writes: Is there a concern with the lighting that the fuselage isn't a good enough template? Hi Clive, The karmen on the two fuselage sides are probably pretty close in the original molds, but that may change over time with use. Plus the individual layups could vary, as could the way the two halves are glassed together. All of these processes leave some room for very slight miss-allignment of the karmen on each side. In the past, some Lightnings have come out with no roll when using the karmen and others have had a roll to correct. So it just depends. The new jig that SYI is using makes sure both wings are set to the same incidence. Adds one step to the process, but insures they are the same. Blue Skies, Buz ------------------------------------------------------------------------- ----- Wondering what's for Dinner Tonight? Get new twists on family favorites at AOL Food. ________________________________ Message 3 _____________________________________ Time: 10:41:33 AM PST US From: Subject: Re: Lightning-List: email Thanks Johnny. I will use your method as an extra check! Colin K. ---- Johnny Thompson <14az@mysprocketmail.com> wrote: > I used a simple system that worked well on N8WN. I put a 6" 2x6 directly above the aft "C spar" of the wing then placed the digital level on the 2x6 with the forward point of the level on the wing on top of the main spar. I repeated this mid span and then on the tip of the wing. As I suspected I had some (minor) difference in twist between the two wings but not enough to matter. I set the incidence on the left and the wing matched the karmen perfect. On the right I had to place downward force on the leading edge to bring the wing into 0.2 degree of the left wing. I then had to add micro balloon mix to the top forward of the karmen about 1/4" to bring it into alignment with the wing. The bottom on the wing is not a perfect match but with years of experience with composites this is about normal. Not a big deal at all. What matters is the aircraft flew hands off without any roll at all. Johnny > ----- Original Message ----- > From: N1BZRich@aol.com > To: lightning-list@matronics.com > Sent: Sunday, May 18, 2008 6:52 PM > Subject: Re: Lightning-List: email > > > In a message dated 5/17/2008 12:26:35 P.M. Eastern Daylight Time, clive.james@uk.bp.com writes: > Is there a concern with the lighting that the fuselage isn't a good > enough template? > > Hi Clive, > The karmen on the two fuselage sides are probably pretty close in the original molds, but that may change over time with use. Plus the individual layups could vary, as could the way the two halves are glassed together. All of these processes leave some room for very slight miss-allignment of the karmen on each side. In the past, some Lightnings have come out with no roll when using the karmen and others have had a roll to correct. So it just depends. The new jig that SYI is using makes sure both wings are set to the same incidence. Adds one step to the process, but insures they are the same. > Blue Skies, > Buz > > > > > > ------------------------------------------------------------------------------ > Wondering what's for Dinner Tonight? Get new twists on family favorites at AOL Food. > > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message lightning-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Lightning-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/lightning-list Browse Digests http://www.matronics.com/digest/lightning-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.