---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Tue 03/21/17: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:45 AM - Lightweight rechargeable battery backup unit (BobD) 2. 06:14 AM - Re: Lightweight rechargeable battery backup unit (Kevin Challis) 3. 08:07 AM - Re: Lightweight rechargeable battery backup unit (BobD) 4. 05:48 PM - MG outrigger track width? (Pete) ________________________________ Message 1 _____________________________________ Time: 03:45:10 AM PST US Subject: Europa-List: Lightweight rechargeable battery backup unit From: "BobD" Now that the LAA have approved the use of electronic ASI & Altimeter for backup purposes as an alternative to steam driven instruments, I am considering installing a combined unit in my aircraft as a backup to my Dynon Skyview. http://www.lightaircraftassociation.co.uk/engineering/TechnicalLeaflets/Mods%20and%20Repairs/TL%203.20%20EFIS%20in%20LAA%20Aircraft.pdf The pre-approved one I prefer (on clarity and cost grounds) from the LAA document is the MGL ASX-1. However, it has one major drawback in that it does not have a built in battery backup. Having spoken to a distributor, he suggested a 9V PP3 battery (possibly switchable in the circuit) would be sufficient for emergency power if the main circuit failed. However, I would prefer a re-chargeable battery, re-charged through the aircraft system, so as not to have to worry or check that the backup battery is maintained in a charged state. Despite trawling the web, and there being several commercial units and amateur wiring diagrams out there, I have found none that are specific for incorporating in an aircraft. I am reasonably competent with a soldering iron, but less so in the theory of such things, so would be happy to construct my own on a PCB, from a detailed wiring diagram. Does anyone know of such a diagram, or a suitable lightweight and cost effective commercial device suitable for installation behind the Control Panel? I have copied this post to the AeroElectric List. -------- Bob Dawson XS TG || 912 ULS || G-NHRJ Read this topic online here: http://forums.matronics.com/viewtopic.php?p=467483#467483 ________________________________ Message 2 _____________________________________ Time: 06:14:01 AM PST US From: Kevin Challis Subject: Re: Europa-List: Lightweight rechargeable battery backup unit http://www.mini-box.com/picoUPS-120-12V-DC-micro-UPS-battery-backup This board coupled to a sealed a very small 12vdc battery and the aircraft e lectrical system will give you a backup 12vdc that is charged from the aircr aft but switches over in the event of power loss so quickly the instrument c ontinues to work. Kevin Challis G ODJG > On 21 Mar 2017, at 11:44, BobD wrote: > > > Now that the LAA have approved the use of electronic ASI & Altimeter for b ackup purposes as an alternative to steam driven instruments, I am consideri ng installing a combined unit in my aircraft as a backup to my Dynon Skyview . > > http://www.lightaircraftassociation.co.uk/engineering/TechnicalLeaflets/Mo ds%20and%20Repairs/TL%203.20%20EFIS%20in%20LAA%20Aircraft.pdf > > The pre-approved one I prefer (on clarity and cost grounds) from the LAA d ocument is the MGL ASX-1. However, it has one major drawback in that it does not have a built in battery backup. > > Having spoken to a distributor, he suggested a 9V PP3 battery (possibly sw itchable in the circuit) would be sufficient for emergency power if the main circuit failed. However, I would prefer a re-chargeable battery, re-charged through the aircraft system, so as not to have to worry or check that the b ackup battery is maintained in a charged state. Despite trawling the web, an d there being several commercial units and amateur wiring diagrams out there , I have found none that are specific for incorporating in an aircraft. > > I am reasonably competent with a soldering iron, but less so in the theory of such things, so would be happy to construct my own on a PCB, from a deta iled wiring diagram. Does anyone know of such a diagram, or a suitable light weight and cost effective commercial device suitable for installation behind the Control Panel? > > I have copied this post to the AeroElectric List. > > -------- > Bob Dawson > XS TG || 912 ULS || G-NHRJ > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=467483#467483 > > > > > > ========================== ========= ========================== ========= ========================== ========= ========================== ========= ========================== ========= > > > ________________________________ Message 3 _____________________________________ Time: 08:07:05 AM PST US Subject: Europa-List: Re: Lightweight rechargeable battery backup unit From: "BobD" Hi Kevin, Thanks for your reply. I did actually come across this unit in my web search, but as it says it is for cars, I am not knowledgeable enough to know if it is also suitable for aviation. It's also from the USA, and I would prefer a UK (or UK distributed) solution if possible. It is along the lines of the sort of thing I am looking for, it should be fairly easy to find an enclosure to house the PCB and battery. -------- Bob Dawson XS TG || 912 ULS || G-NHRJ Read this topic online here: http://forums.matronics.com/viewtopic.php?p=467492#467492 ________________________________ Message 4 _____________________________________ Time: 05:48:36 PM PST US Subject: Europa-List: MG outrigger track width? From: Pete Just curious if it will fit on my ramp :-) Cheers and thx, Pete a239 ------------------------------------------------------------------------------------- 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.