---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Wed 01/29/20: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 10:31 AM - Re: Plan-B fuel flow . . . (jonlaury) 2. 05:26 PM - Re: Proposed Z-14 implementation (johnbright) ________________________________ Message 1 _____________________________________ Time: 10:31:21 AM PST US Subject: AeroElectric-List: Re: Plan-B fuel flow . . . From: "jonlaury" johnbright wrote: > Dave Anders did something like this on his SDS EFI RV-4: > > http://www.vansairforce.com/community/showpost.php?p=1191654&postcount=140 > > With 2 fuel pumps, 1 running from main bus and 1 running on bat bus, requiring a simultaneous failure of two alternators and battery failure, I've made my peace with the odds of losing both pumps to the nozzle (attached) mounted in intake plenum, teed into the recirc line,and controlled by a solenoid valve. YMMV Read this topic online here: http://forums.matronics.com/viewtopic.php?p=494522#494522 Attachments: http://forums.matronics.com//files/back_up_nozzle_191.png ________________________________ Message 2 _____________________________________ Time: 05:26:01 PM PST US Subject: AeroElectric-List: Re: Proposed Z-14 implementation From: "johnbright" user9253 wrote: > What if the smoke in the cockpit is coming from Com 1? > I suggest removing Com 1 from the engine bus. Thanks Joe, FWIW the engine bus in my post from Jan 27, 2020 above seems to meet FAR 23.1361. Nothing is ideal but I lean toward keeping com 1 on the engine bus. Com 1 is 3 A max, Dynon D6 0.9A max. Sec. 23.1361 Master switch arrangement: (a) There must be a master switch arrangement to allow ready disconnection of each electric power source from power distribution systems, except as provided in paragraph (b) of this section. The point of disconnection must be adjacent to the sources controlled by the switch arrangement. If separate switches are incorporated into the master switch arrangement, a means must be provided for the switch arrangement to be operated by one hand with a single movement. (b) Load circuits may be connected so that they remain energized when the master switch is open, if the circuits are isolated, or physically shielded, to prevent their igniting flammable fluids or vapors that might be liberated by the leakage or rupture of any flammable fluid system; and (1) The circuits are required for continued operation of the engine; or (2) The circuits are protected by circuit protective devices with a rating of five amperes or less adjacent to the electric power source. (3) In addition, two or more circuits installed in accordance with the requirements of paragraph (b)(2) of this section must not be used to supply a load of more than five amperes. (c) The master switch or its controls must be so installed the switch is easily discernible and accessible to a crew member. -------- John Bright, RV-6A, at FWF, O-360, dual SDSEFI EM-5-F Dual Batt Dual Alt RV-6A SDS dual EM-5-F john_s_bright@yahoo.com, Newport News, Va Read this topic online here: http://forums.matronics.com/viewtopic.php?p=494523#494523 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-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/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-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.