---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Mon 08/05/13: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:56 AM - Re: Where to get a RC heli? (Richard Girard) 2. 04:56 AM - Re: Re: MIL SPEC spoof (R. curtis) 3. 07:24 AM - Re: roll my own transponder antenna? (messydeer) 4. 08:55 AM - Re: Re: roll my own transponder antenna? (Bob McCallum) 5. 08:12 PM - Battery question (Richard Girard) ________________________________ Message 1 _____________________________________ Time: 02:56:57 AM PST US Subject: Re: AeroElectric-List: Where to get a RC heli? From: Richard Girard Please stop sending this spam. Rick Girard do not archive On Sun, Aug 4, 2013 at 9:28 PM, Angus wrote: > > I like RC heli very much,share your thought with me. > > -------- > http://www.rctophobby.com > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=405942#405942 > > -- Zulu Delta Mk IIIC Thanks, Homer GBYM It isn't necessary to have relatives in Kansas City in order to be unhappy. - Groucho Marx ________________________________ Message 2 _____________________________________ Time: 04:56:07 AM PST US From: "R. curtis" Subject: Re: AeroElectric-List: Re: MIL SPEC spoof > I'm curious though as to how one would begin to write a spec which took > into account "economics and the free market". If you want companies to > bid, you need spec which is factual, you couldn't just say "brownies such > as those commonly available in US supermarkets". This is true, but on the other hand, who needs a 100 page Brownie spec generously sprinkled with references to other regulations on every page, to the point that a "Philadelphia Lawyer" has a problem with interpritation. The proliferation of rules and regulations only speeds the growth of government and encourages the decline of personal honesty and integrity. Roger do not archive -- Do you have a slow PC? Try a Free scan http://www.spamfighter.com/SLOW-PCfighter?cid=sigen ________________________________ Message 3 _____________________________________ Time: 07:24:25 AM PST US Subject: AeroElectric-List: Re: roll my own transponder antenna? From: "messydeer" Well, that cheap TED xpdr antenna is backordered. I came up with a few different lengths, googling. The diagram below shows it's ~2.5" from the ground plane (aluminum skin). Also read on the sequair site it would be 3.1", but that could be for a non-aluminum plane. http://www.seqair.com/skunkworks/Antennas/TpxAntProbs/TpxAntProbs.html Thanks, Dan Read this topic online here: http://forums.matronics.com/viewtopic.php?p=405965#405965 Attachments: http://forums.matronics.com//files/ted_xpdr_diagram_157.gif ________________________________ Message 4 _____________________________________ Time: 08:55:55 AM PST US From: Bob McCallum Subject: RE: AeroElectric-List: Re: roll my own transponder antenna? Dan; I believe the 3.1" dimension on the Sequoia site is the overall length of the rod not the portion beyond the ground plane, and yes, this is for a wooden aeroplane with a relatively small ground plane. The article also speaks to a larger ground plane having some effect on the length. Bob McC. > -----Original Message----- > From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list- > server@matronics.com] On Behalf Of messydeer > Sent: Monday, August 05, 2013 10:23 AM > To: aeroelectric-list@matronics.com > Subject: AeroElectric-List: Re: roll my own transponder antenna? > > > Well, that cheap TED xpdr antenna is backordered. I came up with a few different > lengths, googling. The diagram below shows it's ~2.5" from the ground plane > (aluminum skin). Also read on the sequair site it would be 3.1", but that could be for a > non-aluminum plane. > > http://www.seqair.com/skunkworks/Antennas/TpxAntProbs/TpxAntProbs.html > > Thanks, > Dan > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=405965#405965 > > > > > Attachments: > > http://forums.matronics.com//files/ted_xpdr_diagram_157.gif > > > > > _- > ==================================================== > ====== > _- > ==================================================== > ====== > _- > ==================================================== > ====== > _- > ==================================================== > ====== > > ________________________________ Message 5 _____________________________________ Time: 08:12:18 PM PST US Subject: AeroElectric-List: Battery question From: Richard Girard My understanding is that it takes at least 13.8 volts to charge a 12 volt battery. Last Sunday I was using a Schumacher SC 8010A to charge a 12 volt 20 a.h. AGM battery. The charger started out at 12.5 volts and gradually climbed until after an hour the display was reading 15.5 volts. I disconnected the charger even though when I selected percent of charge it indicated 71 % charged. I used a Fluke VOM to check the battery and it indicated 15.4 volts. The battery was not even warm to the touch so I put the charger back on and continued charging until the battery was at 95% charge at which time the charger was still at 15.5 volts. The battery was barely warm to the touch. Again, with battery disconnected from the charger it tested at 15.4 volts. The battery seemed to work normally when we attempted to start the engine. Why would the charger charge at such a rate? Why would a 12V battery test at 15.4 volts? Rick Girard It isn't necessary to have relatives in Kansas City in order to be unhappy. - Groucho Marx ------------------------------------------------------------------------------------- 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.