---------------------------------------------------------- RV8-List Digest Archive --- Total Messages Posted Sat 05/09/09: 8 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 10:49 AM - Mounting Antennas On Bottom Fuselage Skin... (Matt Dralle) 2. 11:51 AM - Re: Mounting Antennas On Bottom Fuselage Skin... (jim-bean@att.net) 3. 12:12 PM - Re: Mounting Antennas On Bottom Fuselage Skin... (Carl Froehlich) 4. 04:39 PM - Button Labeling For Infinity Stick Grips... (Matt Dralle) 5. 05:05 PM - Button Labeling For Infinity Stick Grips... (Matt Dralle) 6. 07:24 PM - Re: Mounting Antennas On Bottom Fuselage Skin... (Dale Ellis) 7. 07:41 PM - Re: Mounting Antennas On Bottom Fuselage Skin... (Vincent Himsl) 8. 08:39 PM - Re: Mounting Antennas On Bottom Fuselage Skin... (james d winkler) ________________________________ Message 1 _____________________________________ Time: 10:49:25 AM PST US From: Matt Dralle Subject: RV8-List: Mounting Antennas On Bottom Fuselage Skin... Fellow Builders, I'm getting ready to mount the COM (Commant bent whips) and Transponder (Commant shark fin) antennas on the bottom of the RV-8. I plan to mount them to the bottom fuselage skin right behind the aileron torque tubes. I think this is something like .040" skin and its pretty rigid, but what are people's thoughts on adding a skin doubler, perhaps a .032 piece something like 6"x8"? I'd rather not, but on the other hand, I don't want to have the skin end up deformed over time. Thanks in advance. Matt Dralle RV-8 #82882 N998RV Laying Out Carpet in CAD... ________________________________ Message 2 _____________________________________ Time: 11:51:53 AM PST US From: jim-bean@att.net Subject: Re: RV8-List: Mounting Antennas On Bottom Fuselage Skin... ________________________________ Message 3 _____________________________________ Time: 12:12:10 PM PST US From: "Carl Froehlich" Subject: RE: RV8-List: Mounting Antennas On Bottom Fuselage Skin... I believe the skin is 0.032" not 0.040". Recommend using a 0.032' doubler. 6"x8" is larger than needed however. Consider something that extends and inch or two beyond the antenna mounting screws. A simple install is a little bit of pro-seal between the doubler and the skin, and then the antenna hardware through both the skin and the doubler. Don't be concerned that you do not have perfect metal to metal connection. The antenna needs an RF ground, not a DC ground. As long as it is mounted on the skin you are ok, even if you have primer/paint on the skin. Put some spacing between the two antennas, perhaps a couple of feet. Carl Froehlich RV-8A (475 hrs) RV-10 (fuselage) -----Original Message----- From: owner-rv8-list-server@matronics.com [mailto:owner-rv8-list-server@matronics.com] On Behalf Of Matt Dralle Sent: Saturday, May 09, 2009 1:47 PM Subject: RV8-List: Mounting Antennas On Bottom Fuselage Skin... Fellow Builders, I'm getting ready to mount the COM (Commant bent whips) and Transponder (Commant shark fin) antennas on the bottom of the RV-8. I plan to mount them to the bottom fuselage skin right behind the aileron torque tubes. I think this is something like .040" skin and its pretty rigid, but what are people's thoughts on adding a skin doubler, perhaps a .032 piece something like 6"x8"? I'd rather not, but on the other hand, I don't want to have the skin end up deformed over time. Thanks in advance. Matt Dralle RV-8 #82882 N998RV Laying Out Carpet in CAD... ________________________________ Message 4 _____________________________________ Time: 04:39:24 PM PST US From: Matt Dralle Subject: RV8-List: Button Labeling For Infinity Stick Grips... Dear Listers, I've been pondering for a while how to "label" the various button functions of the Infinity stick grips I have wired up in the front and back of the RV-8. I spent some time today with the 'ol CAD program making a caricature drawing of the Infinity stick grip and buttons and adding some labeling. My plan is to silk screen the attached layout right to the instrument panel in the front, and to a small metal piece for the back. The cockpit and instrument panel will be black, so the diagram should pop nicely on that background. Just thought I'd pass on my efforts. Matt Dralle RV-8 #82880 Laying Out Carpet Patterns In CAD... ________________________________ Message 5 _____________________________________ Time: 05:05:19 PM PST US From: Matt Dralle Subject: RV8-List: Button Labeling For Infinity Stick Grips... Dear Listers, I've been pondering for a while how to "label" the various button functions of the Infinity stick grips I have wired up in the front and back of the RV-8. I spent some time today with the 'ol CAD program making a caricature drawing of the Infinity stick grip and buttons and adding some labeling. My plan is to silk screen the attached layout right to the instrument panel in the front, and to a small metal piece for the back. The cockpit and instrument panel will be black, so the diagram should pop nicely on that background. Just thought I'd pass on my efforts. Matt Dralle RV-8 #82880 Laying Out Carpet Patterns In CAD... ________________________________ Message 6 _____________________________________ Time: 07:24:16 PM PST US From: Dale Ellis Subject: Re: RV8-List: Mounting Antennas On Bottom Fuselage Skin... In my crude survey of other builders, I discovered that 2/3 or more of builders do put a doubler plate on the inside of the bottom skin for at least the comm antenna. As you suggested, about a 6 x 8 inch piece of .032 material. But I suspect that a 6 x 6 piece would work, if that is what you happen to have laying around. I have seen that doubler riveted with both countersunk and universal head rivets. Dale -----Original Message----- >From: Matt Dralle >Sent: May 9, 2009 1:46 PM >To: rv8-list@matronics.com, rv-list@matronics.com >Subject: RV8-List: Mounting Antennas On Bottom Fuselage Skin... > > > >Fellow Builders, > >I'm getting ready to mount the COM (Commant bent whips) and Transponder (Commant shark fin) antennas on the bottom of the RV-8. I plan to mount them to the bottom fuselage skin right behind the aileron torque tubes. I think this is something like .040" skin and its pretty rigid, but what are people's thoughts on adding a skin doubler, perhaps a .032 piece something like 6"x8"? I'd rather not, but on the other hand, I don't want to have the skin end up deformed over time. > >Thanks in advance. > >Matt Dralle >RV-8 #82882 N998RV >Laying Out Carpet in CAD... > > ________________________________ Message 7 _____________________________________ Time: 07:41:20 PM PST US From: Vincent Himsl Subject: RE: RV8-List: Mounting Antennas On Bottom Fuselage Skin... Used same antennae=2C same location except transponder was near rear bellcr ank. Both areas I used a doubler. Vince H. RV-8 N8432 Preparing for inspection. _________________________________________________________________ Windows Live=99: Keep your life in sync. http://windowslive.com/explore?ocid=TXT_TAGLM_BR_life_in_synch_052009 ________________________________ Message 8 _____________________________________ Time: 08:39:38 PM PST US From: "james d winkler" Subject: Re: RV8-List: Mounting Antennas On Bottom Fuselage Skin... if you bend up 1/4 in on each side, the stiffener will be more stiff .. j ------------------------------------------------------------------------------------- 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.