---------------------------------------------------------- RV8-List Digest Archive --- Total Messages Posted Sat 08/23/08: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:32 AM - Re: Construction question for RV-8(A) Elevator (Gordon or Marge) 2. 04:53 PM - Elevator Skin Trailing Edge Bowing... (Matt Dralle) ________________________________ Message 1 _____________________________________ Time: 06:32:57 AM PST US From: "Gordon or Marge" Subject: RE: RV8-List: Construction question for RV-8(A) Elevator -----Original Message----- From: owner-rv8-list-server@matronics.com [mailto:owner-rv8-list-server@matronics.com] On Behalf Of Garey Wittich Sent: Friday, August 22, 2008 12:02 AM Subject: RV8-List: Construction question for RV-8(A) Elevator --> My Drawing 4PP (circa 2000), which Vans has "somewheres", is confusing to me: 1) This drawing shows the "DIMENSIONS of Elevator Spar E-602PP" (narrow end) with cutouts of 3/4" X 5/8". What is this cut-out for - does not make sense ?? Garey: The cutouts you refer to enable the bending of the spar web (away from the spar flanges)to form a flange for attaching the rib. The rib has its flanges trimmed to allow forming a flange to attach to the spar and avoid interferance with the spar flanges. 2) Section B-B: Shows the E-602PP Spar mating to the aft end of the E-604 Rib. It looks like the aft end of E-604 Ribs "flange" is cut out so as to not interfere with the E-602PPs "flange" at this point. Is this correct ?? Yes. 3) Section B-B: Shows a "dashed line" where the above Spar and Rib meet. IF the aft end of E-604 Rib's flange is cut-out, what does this "dash line" signify as nothing is there ??? It appears to signify nothing. Need a little clarification HELP. Thank you, Garey Wittich (310) 392-1682 Santa Monica, CA Gordon Comfort N363GC ________________________________ Message 2 _____________________________________ Time: 04:53:22 PM PST US From: Matt Dralle Subject: RV8-List: Elevator Skin Trailing Edge Bowing... Dear Listers, Backing into the garage today I noticed the elevator skin bowing at the trailing edge in the review mirror because of the way the light was hitting it. Basically what the deal is I think is that I bent the trailing edge of the elevators more than necessary. So, when I pulled the leading edge apart to fit it over the spar, I now have a concave bowing effect between some of the bays. Van's goes to great lengths in the manual to make sure that bend the elevator trailing edges *enough*, but doesn't make mention of what is "too much". The radius of the trailing edge is still within spec and there is no cracking or stress marks. Its just bent too much and looks like of stupid. Somehow, I did the rudder perfectly, but both elevators suffer from the effect. I've included some pictures below. What the common thought on this issue? Are the safety/flutter issues with over-bending as I have done? What to do...? Thanks! Matt Dralle RV-8 #82880 RV-8 Fuse/Wing QB Kit Delivery Next Week! (Ordered May 20 2008) ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv8-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV8-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/rv8-list Browse Digests http://www.matronics.com/digest/rv8-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.