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	<title>Solar Computing &#187; brake failure</title>
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	<description>Solar, Ultra-Mobile and Eco-Friendly Computing</description>
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		<title>Blue Bike Baggage test</title>
		<link>http://solarumpc.com/2007/06/10/blue-bike-baggage-test/</link>
		<comments>http://solarumpc.com/2007/06/10/blue-bike-baggage-test/#comments</comments>
		<pubDate>Sat, 09 Jun 2007 22:12:00 +0000</pubDate>
		<dc:creator>Chippy</dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[Bike]]></category>
		<category><![CDATA[brake failure]]></category>
		<category><![CDATA[Li-Ion]]></category>
		<category><![CDATA[local bike shop]]></category>
		<category><![CDATA[panel]]></category>
		<category><![CDATA[solar kit]]></category>

		<guid isPermaLink="false">http://solarcomputing.carrypad.com/2007/06/10/blue-bike-baggage-test/</guid>
		<description><![CDATA[Encouraged by yesterdays progress with the solar kit, I spent most of today finishing off the wiring and packing it all into a plastic box. I then paired down my kit list somewhat (out goes the Nokia N800 and spare mobile phone, two pairs of underwear, one of the t-shirts, the multimeter and a pair [...]]]></description>
			<content:encoded><![CDATA[<p><a href="http://www.solar-umpc.com/files/images/BlueBikeBaggagetest_2DA/image04.png"><img height="126" src="http://www.solar-umpc.com/files/images/BlueBikeBaggagetest_2DA/image0_thumb2.png" width="240" align="right" border="0"></a> Encouraged by yesterdays progress with the solar kit, I spent most of today finishing off the wiring and packing it all into a plastic box. I then paired down my kit list somewhat (out goes the Nokia N800 and spare mobile phone, two pairs of underwear, one of the t-shirts, the multimeter and a pair of trousers) and loaded everything up on the bike to see what sort of weight I was dealing with. The total wight of the bike and kit together (that&#8217;s biking, camping and computing gear) comes to 55KG. I have some food and bits and pieces to add to that so lets call it 60KG. Considering the bike weighs 25Kg that means I&#8217;m going to be carrying a 35Kg office. I took the bike for a ride and it seems pretty stable although I am a little worried about brake failure. I only have a back-pedal brake and while its very good I&#8217;m in serious trouble if it fails.&nbsp;I&#8217;m thinking about getting front brakes fitted this week. I also notice a small S in the back wheel. Its out of alignment and I hope that it can be brought true again by a local bike shop. If not, I&#8217;m probably in trouble and might have to switch bikes. I don&#8217;t want to do that as I really like FK398. Its been a work horse for 4 years and it deserves to be in the tour. It also looks great. I love the retro style.</p>
<p align="center"><img src="http://www.umpcportal.com/gallery/d/5204-3/solartour1+018.jpg">&nbsp;<br /><font size="1">About 90% loaded. The Kronan feels OK to ride with 35KG on it.</font></p>
<p>Another&nbsp;problem I really need to think about is the positioning of the solar panel on the bike. I can easily deploy 50% of it across the rear baggage but that&#8217;s not really going to be enough. I should have tried to find two separate 12W panels and mounted them front and rear but its too late for that now and I&#8217;ll have to work round it. In this part of the world, the sun gives you about 4 full-power hours per day. With a 50% deployment of the panel, that&#8217;s only 48W/hrs. Short of the 60W/hrs I think I need per day. However, what I could do (and I really like the sound of this idea) is take a 2 hours working break between 12 and 2. This should give me close to 50W/hr of energy assuming the sun is shining. Outside these hours I might pick up another 10-20 w/hr so that&#8217;s 70W/hr of energy from the panel in a day. It looks like its possible and I will test the theory this week.</p>
<p><img src="http://www.umpcportal.com/gallery/d/5207-3/solartour1+019.jpg"><br /><font size="1">Under the seat is the battery and electrical kit. It weighs something like&nbsp;5KG but packs an 80W/hr lead-acid battery and a 56W/hr Li-Ion battery. Enough to take a full days energy from the solar panel.</font>&nbsp;</p>
<p><font size="2"><img src="http://www.umpcportal.com/gallery/d/5182-3/solartour1+009.jpg"><br /><font size="1">There&#8217;s about 5KG going on the front rack. Its&nbsp;not attached to the forks so doesn&#8217;t affect steering as much as panniers would. I&#8217;m thinking of using it as a computer table in the evening but I can&#8217;t find a good enough stool.</font>&nbsp;</font></p>
<p align="center"><font size="2"><img src="http://www.umpcportal.com/gallery/d/5175-4/solartour1+008.jpg">&nbsp;</font></p>
<p align="left"><font size="1">Mounted on the front handlebar are the Garmin Etrex GPS logger and a Plexiglas map holder. I will get some rain covers and more straps for the equipment. The Q1b UMPC sits in the right hand pannier its its organizer case and wrapped in clothes. I will have to be careful about making sure the device is in hibernation before I ride. If its in standby and then goes into hibernation it will have to start-up the disk. I don&#8217;t want that to happen while I&#8217;m riding as it could be fatal.</font></p>
<p align="left"><font size="1"></font>&nbsp;</p>
<div class="wlWriterSmartContent" id="0767317B-992E-4b12-91E0-4F059A8CECA8:b582b8f3-b97e-4b7e-904b-54ffea9aa412" style="padding-right: 0px;padding-left: 0px;padding-bottom: 0px;margin: 0px;padding-top: 0px">Technorati tags: <a href="http://technorati.com/tags/solar%20panel" rel="tag">solar panel</a>, <a href="http://technorati.com/tags/solar%20energy" rel="tag">solar energy</a>, <a href="http://technorati.com/tags/computing" rel="tag">computing</a>, <a href="http://technorati.com/tags/umpc" rel="tag">umpc</a>, <a href="http://technorati.com/tags/mobility" rel="tag">mobility</a>, <a href="http://technorati.com/tags/bike%20touring" rel="tag">bike touring</a>, <a href="http://technorati.com/tags/biking" rel="tag">biking</a>, <a href="http://technorati.com/tags/camping" rel="tag">camping</a></div>
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