---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Thu 11/13/14: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:50 AM - Re: Electrical bonding (rampil) ________________________________ Message 1 _____________________________________ Time: 12:50:28 AM PST US Subject: Europa-List: Re: Electrical bonding From: "rampil" Please allow me to reiterate. "Bonding" is for transferring triboelectric "static" charge off the aircraft. Europa structures are not designed with integral metal mesh, so these charges are going to sit in localized pockets on the skin of the paint. They will not generally penetrate to the actual fiberglass unless the paint has pinholes or the collected charge grows to a voltage (compared to elsewhere on the plane) high enough to arc through, burning as it goes. Bonding is not able to safely move the current flow of a lightning strike from one side of an aircraft to another. Consider please the typical current flow usually stated as 10,000 Amps. What gauge wire are you going to loft which can carry that charge without instantly vaporizing? Look at the posted metal fuselage damage. A puny 18 ga copper wire will explode like a stick of dynamite. There is no proven risk mitigation I am aware of for a Europa class craft except staying away from strong convective activity. If you were to redesign to Airbus technology, the Rotax could not lift you off the ground. You might consider Cirrus type technology with a design penalty of only quadrupling the price, but no extant technology guarantees safety. Fly Safe! -------- Ira N224XS Read this topic online here: http://forums.matronics.com/viewtopic.php?p=433569#433569 ------------------------------------------------------------------------------------- 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.