<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">How about a Windmill too? It would refill the Batteries during OFF Peak flying times.... ;)<BR><BR>--- On <B>Wed, 4/29/09, Roger Hammel <I><skitimberlakespartava@yahoo.com></I></B> wrote:<BR>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: rgb(16,16,255) 2px solid"><BR>From: Roger Hammel <skitimberlakespartava@yahoo.com><BR>Subject: Re: [NSRCA-discussion] NSRCA-discussion Digest, Vol 41, Issue 28<BR>To: nsrca-discussion@lists.nsrca.org<BR>Cc: "Roger Hammel" <skitimberlake@verizon.net><BR>Date: Wednesday, April 29, 2009, 3:48 PM<BR><BR>
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<DIV>Is anyone aware of an RC club that has implemented a solar powered charging station for electric fliers ? My club has strongly supported the concept, voted to approve funds, and I would like to get hard data and experience from others on several system items. </DIV>
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<DIV>Two of our electric fliers/engineers have designed what they believe will be a scalable system, borrowing from their experience in powering wireless base stations and other similar applications. I wanted to compare their numbers to any hard experience from RC users.</DIV>
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<DIV>We lack good data on typical use per pilot. Our club is not all that Pattern heavy, but does have many electric fliers using 3s-4s packs in say the sub 4000 Mah size. For the most part, these systems power planes typically smaller than 40 size. Were I to guess, Eflite 480 size may be .typical or say average size plane.</DIV>
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<DIV>Any data and experience would be appreciated. Need data on :</DIV>
<DIV>a) the number of anticipated electric pilots and expected average weekly capacity used per pilot from existing solar powered systems </DIV>
<DIV>b) the size & type of the battery (deep cycle) used to store power - e.g. number of Mah and type - wet cell, gel cell or AGM, and the typical max discharge % anticipated; </DIV>
<DIV>c) - the recharge time (days or hours) to recharge the storage battery from normal max use drawdown; </DIV>
<DIV>d) the number and size of the solar panels used; and power output (amps) at say 16-17v range</DIV>
<DIV>e) the capacity of the charge controller used.</DIV>
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<DIV>offline replies welcomed too - <A href="http://us.mc352.mail.yahoo.com/mc/compose?to=skitimberlakespartava@yahoo.com" target=_blank rel=nofollow ymailto="mailto:skitimberlakespartava@yahoo.com">skitimberlakespartava@yahoo.com</A></DIV>
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<DIV>thanks</DIV>
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<DIV>Roger Hammel<BR><BR></DIV></TD></TR></TBODY></TABLE></DIV><BR>-----Inline Attachment Follows-----<BR><BR>
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