---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Tue 11/11/14: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:12 AM - Electrical bonding (Kelvin Weston) 2. 09:49 AM - classic tail wheel (spcialeffects) 3. 10:18 AM - AW: classic tail wheel (A. Buess Aviatik) 4. 11:11 AM - Re: Electrical bonding (graeme bird) 5. 11:30 AM - Re: AW: classic tail wheel (spcialeffects) 6. 03:08 PM - Re: Re: Electrical bonding (davidjoyce@doctors.org.uk) ________________________________ Message 1 _____________________________________ Time: 07:12:14 AM PST US Subject: Europa-List: Electrical bonding From: "Kelvin Weston" Hi All There is no mention in the Europa build manual of any requirement for electrical bonding. I assume therefore, that there is no need for electrical bonding of the various metal parts bolted to the airframe, ie control rods, brackets, etc. But what have others done? Obviously there is a requirement on a composite airframe for an earth return (power) from the various electrical bits and I know there has been much discussion on this forum regarding avionics earths, earth loops and power / signal returns to avoid noise and interference. But what about electrical bonding? Has anyone felt the need to bond fuel fittings for example? I know Im opening a can of worms here, but hey! Its a discussion forum after all! -------- Regards Kelv Weston Kit 497 kelv@kdweston.biz Read this topic online here: http://forums.matronics.com/viewtopic.php?p=433381#433381 ________________________________ Message 2 _____________________________________ Time: 09:49:37 AM PST US Subject: Europa-List: classic tail wheel From: "spcialeffects" Hello all. I am building a classic mono and am fitting the tail wheel at the moment. I am also using the XS stern post instead of the classic build option. Today i drilled the hole in the stern post, in the correct location BUT i followed the wrong line. I drilled it in line with the angle of the spring mount of the wheel and not the fuselage bottom :( . I have the correct distance from the bottom of the fuselage and the spring end 235mm, plus i have a good fit around the spring arm through the stern post but i now need 12 plys or shims under where the bolt goes. SO what im asking is should i go with the 12 shims and use a longer bolt OR file the hole at the bottom and and get the correct 5 or so shims but have an untidy fit around the stern post area? All views/advice welcome. Thanks Frank Read this topic online here: http://forums.matronics.com/viewtopic.php?p=433387#433387 ________________________________ Message 3 _____________________________________ Time: 10:18:13 AM PST US From: "A. Buess Aviatik" Subject: AW: Europa-List: classic tail wheel Frank, Where are you located? I have a spare stern post if you need to redo the whole spring installation. Regards, Alfred Alfred Buess CH-3700 Spiez, Switzerland Europa XS HB-YKI, Ercoupe 415-E N94804 -----Ursprngliche Nachricht----- Von: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] Im Auftrag von spcialeffects Gesendet: Dienstag, 11. November 2014 18:49 An: europa-list@matronics.com Betreff: Europa-List: classic tail wheel --> Hello all. I am building a classic mono and am fitting the tail wheel at the moment. I am also using the XS stern post instead of the classic build option. Today i drilled the hole in the stern post, in the correct location BUT i followed the wrong line. I drilled it in line with the angle of the spring mount of the wheel and not the fuselage bottom :( . I have the correct distance from the bottom of the fuselage and the spring end 235mm, plus i have a good fit around the spring arm through the stern post but i now need 12 plys or shims under where the bolt goes. SO what im asking is should i go with the 12 shims and use a longer bolt OR file the hole at the bottom and and get the correct 5 or so shims but have an untidy fit around the stern post area? All views/advice welcome. Thanks Frank Read this topic online here: http://forums.matronics.com/viewtopic.php?p=433387#433387 ________________________________ Message 4 _____________________________________ Time: 11:11:50 AM PST US Subject: Europa-List: Re: Electrical bonding From: "graeme bird" Bonding indeed, pointless I would think, nice lightening collectors in the wings and fuselage to convey to the control stick , but then unless you have one hand on the ground you are probably OK. :-) -------- Graeme Bird G-UMPY Mono Classic/XS 912S/Woodcomp 3000/3W Newby: 135 hours 32 months on the Mono g(at)gdbmk.co.uk Read this topic online here: http://forums.matronics.com/viewtopic.php?p=433390#433390 ________________________________ Message 5 _____________________________________ Time: 11:30:53 AM PST US Subject: Europa-List: Re: AW: classic tail wheel From: "spcialeffects" Thanks Alfred but thats a bit drastic to start again. All can be corrected its just which is the best way forward Read this topic online here: http://forums.matronics.com/viewtopic.php?p=433392#433392 ________________________________ Message 6 _____________________________________ Time: 03:08:51 PM PST US From: davidjoyce@doctors.org.uk Subject: Re: Europa-List: Re: Electrical bonding When I was contemplating flying to Oz I did my best to research lightning strikes on composite aircraft, finding accounts of several aircraft being struck with damage varying from just a few instruments fried to wings exploded and control systems welded. Getting authoritive advice on preventive measures proved difficult or impossible, but I came to the following conclusions: 1. Best to steer well clear of Cu-nims 2. If you can't (& travelling through S. E. Asia it is near impossible) then putting in a system to conduct strikes from wingtip to wing tip & nose to tail without too much damage is worthwhile. I had planned to put expanded aluminium mesh in the aileron & flap close outs, connecting to the rear lift pins, and a separate system from engine frame to tail wheel spring. I hoped/believed that this would allow small to moderate strikes to do nothing more than cause temporary deafness, although getting wings off later might have been a challenge! Regards, David Joyce, G-XSDJ On 2014-11-11 19:11, graeme bird wrote: > > Bonding indeed, pointless I would think, nice lightening collectors in the wings and fuselage to convey to the control stick , but then unless you have one hand on the ground you are probably OK. :-) > > -------- > Graeme Bird > G-UMPY > Mono Classic/XS 912S/Woodcomp 3000/3W > Newby: 135 hours 32 months on the Mono > g(at)gdbmk.co.uk > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=433390#433390 [1] > Links: ------ [1] http://forums.matronics.com/viewtopic.php?p=433390#433390 [2] http://www.aeroelectric.com [3] http://www.buildersbooks.com [4] http://www.homebuilthelp.com [5] http://www.mypilotstore.com [6] http://www.mrrace.com [7] http://www.matronics.com/contribution [8] http://www.matronics.com/Navigator?Europa-List [9] http://forums.matronics.com ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message europa-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Europa-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/europa-list Browse Digests http://www.matronics.com/digest/europa-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.