---------------------------------------------------------- RV9-List Digest Archive --- Total Messages Posted Fri 07/24/09: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 10:51 AM - About those stiffening circles around the lightening holes in wing ribs... (Ralph Finch) 2. 12:20 PM - Re: About those stiffening circles around the lightening holes in wing ribs... (Dennis Thomas) 3. 12:23 PM - Re: About those stiffening circles around the lightening holes in wing ribs... (RScott) 4. 01:13 PM - Re: About those stiffening circles around the lightening hol es in wing ribs... (jofrap1@juno.com) 5. 02:35 PM - About those stiffening circles around the lightening holes in wing ribs... (JOHN TIPTON) 6. 04:40 PM - Re: About those stiffening circles around the lightening holes in wing ribs... (Matt Dralle) 7. 08:21 PM - Looking for Builders Asistance (Garey Wittich) ________________________________ Message 1 _____________________________________ Time: 10:51:03 AM PST US From: "Ralph Finch" Subject: RV9-List: About those stiffening circles around the lightening holes in wing ribs... Fellow RVers, I need to mount some stuff on wing ribs. But, the ribs have holes cut out for lightening...and around each hole is stamped a modest raised/indented circle in the sheet metal, for stiffening I suppose. It is the raised side that causes problems when trying to attach something flat there. I'd like to somehow squash or flatten a portion of the raised circle, just enough so that the things I need to mount will fit flush on the rib. Yes, some things must go onto the rib. No, some of this I cannot mount on the other side. What have RVers done to solve this little problem? Thanks, Ralph Finch Davis, California RV-9A QB-SA ________________________________ Message 2 _____________________________________ Time: 12:20:42 PM PST US From: Dennis Thomas Subject: Re: RV9-List: About those stiffening circles around the lightening holes in wing ribs... Hi Ralph, The raised area around the holes are to stiffen and strengthen the rib. In mashing them flat you may distort the shape of the rib as well as weaken it. Before doing that I would suggest talking to one the techs at Van's. Dennis Thomas RV-9 485 hours ----- Original Message ---- From: Ralph Finch Sent: Friday, July 24, 2009 10:48:02 AM Subject: RV9-List: About those stiffening circles around the lightening holes in wing ribs... Fellow RVers, I need to mount some stuff on wing ribs. But, the ribs have holes cut out for lightening...and around each hole is stamped a modest raised/indented circle in the sheet metal, for stiffening I suppose. It is the raised side that causes problems when trying to attach something flat there. I'd like to somehow squash or flatten a portion of the raised circle, just enough so that the things I need to mount will fit flush on the rib. Yes, some things must go onto the rib. No, some of this I cannot mount on the other side. What have RVers done to solve this little problem? Thanks, Ralph Finch Davis, California RV-9A QB-SA ________________________________ Message 3 _____________________________________ Time: 12:23:31 PM PST US From: RScott Subject: Re: RV9-List: About those stiffening circles around the lightening holes in wing ribs... Those rings provide strength, although I don't know how much. And flattening them weakens the metal beyond what it was before the groove was stamped in them. One solution might be to just put spacers under your parts, outside the rings if your "stuff" spans the diameter of the rings. Ralph Finch wrote: > Fellow RVers, > > I need to mount some stuff on wing ribs. But, the ribs have holes cut out > for lightening...and around each hole is stamped a modest raised/indented > circle in the sheet metal, for stiffening I suppose. > > It is the raised side that causes problems when trying to attach something > flat there. I'd like to somehow squash or flatten a portion of the raised > circle, just enough so that the things I need to mount will fit flush on the > rib. Yes, some things must go onto the rib. No, some of this I cannot mount > on the other side. > > What have RVers done to solve this little problem? > > Thanks, > Ralph Finch > Davis, California > RV-9A QB-SA > > ________________________________ Message 4 _____________________________________ Time: 01:13:11 PM PST US From: "jofrap1@juno.com" Subject: Re: RV9-List: About those stiffening circles around the lightening hol es in wing ribs... Hi I don't remember mounting anything to the wing ribs please describe. Joe ---------- Original Message ---------- From: "Ralph Finch" Subject: RV9-List: About those stiffening circles around the lightening holes in wing ribs... Fellow RVers, I need to mount some stuff on wing ribs. But, the ribs have holes cut o ut for lightening...and around each hole is stamped a modest raised/indente d circle in the sheet metal, for stiffening I suppose. It is the raised side that causes problems when trying to attach somethi ng flat there. I'd like to somehow squash or flatten a portion of the rais ed circle, just enough so that the things I need to mount will fit flush on the rib. Yes, some things must go onto the rib. No, some of this I cannot m ount on the other side. What have RVers done to solve this little problem? Thanks, Ralph Finch Davis, California RV-9A QB-SA ____________________________________________________________ Click to reduce wrinkles & lines. Anti-aging that works, try now. http://thirdpartyoffers.juno.com/TGL2141/fc/BLSrjpTJYs88kuk5a2btMoDnI0cC VVYi7DhM6i3NuR28rMr3uENJiP0aXMs/ ________________________________ Message 5 _____________________________________ Time: 02:35:17 PM PST US From: "JOHN TIPTON" Subject: RV9-List: About those stiffening circles around the lightening holes in wing ribs... For the mounting of the 'Gretz' pitot heat controller, I thought of using long screws (attach bolts), with alloy 'stand off' tubes which should solve the problem you are encountering. Check out one or two of the builders web sites there are many options out there. John >> Ralph Finch wrote: >>> Fellow RVers, >>> >>> I need to mount some stuff on wing ribs. But, the ribs have holes cut >>> out >>> for lightening...and around each hole is stamped a modest >>> raised/indented >>> circle in the sheet metal, for stiffening I suppose. >>> >>> It is the raised side that causes problems when trying to attach >>> something >>> flat there. I'd like to somehow squash or flatten a portion of the >>> raised >>> circle, just enough so that the things I need to mount will fit flush on >>> the >>> rib. Yes, some things must go onto the rib. No, some of this I cannot >>> mount >>> on the other side. >>> What have RVers done to solve this little problem? >>> Thanks, >>> Ralph Finch >>> Davis, California >>> RV-9A QB-SA >>> >>> >> >> >> >> >> >> > ________________________________ Message 6 _____________________________________ Time: 04:40:59 PM PST US From: Matt Dralle Subject: Re: RV9-List: About those stiffening circles around the lightening holes in wing ribs... Hi Ralph, Here's how I mounted the Gretz pitot controller PC board on my RV-8. Worked pretty good: http://www.mykitlog.com/users/display_log.php?user=dralle&project=638&category=2982&log=81657&row=132 http://www.mykitlog.com/users/display_log.php?user=dralle&project=638&category=2982&log=81656&row=133 Matt Dralle RV-8 #82880 N998RV FWF Right Around The Corner... At 02:29 PM 7/24/2009 Friday, JOHN TIPTON wrote: > > >For the mounting of the 'Gretz' pitot heat controller, I thought of using >long screws (attach bolts), with alloy 'stand off' tubes which should solve >the problem you are encountering. > >Check out one or two of the builders web sites there are many options out >there. > >John > > >>>Ralph Finch wrote: >>>>Fellow RVers, >>>> >>>>I need to mount some stuff on wing ribs. But, the ribs have holes cut out >>>>for lightening...and around each hole is stamped a modest raised/indented >>>>circle in the sheet metal, for stiffening I suppose. >>>> >>>>It is the raised side that causes problems when trying to attach something >>>>flat there. I'd like to somehow squash or flatten a portion of the raised >>>>circle, just enough so that the things I need to mount will fit flush on the >>>>rib. Yes, some things must go onto the rib. No, some of this I cannot mount >>>>on the other side. >>>>What have RVers done to solve this little problem? >>>>Thanks, >>>>Ralph Finch >>>>Davis, California >>>>RV-9A QB-SA ________________________________ Message 7 _____________________________________ Time: 08:21:40 PM PST US From: Garey Wittich Subject: RV9-List: Looking for Builders Asistance Greetings: Have RV-8A QB Kit. -Have completed Empennage and looking for assistance t o complete Project. -Does anybody know of any person(s) that do Builders Assistance in Southern California (preferably in the Los Angeles Area) ???? Appreciate any leads !!!! Thanks, -Garey Wittich - Santa Monica, CA - -(310) 392-1682=0A=0A =0A ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv9-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV9-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/rv9-list Browse Digests http://www.matronics.com/digest/rv9-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.