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	<title>HHWRSA &#187; launcher</title>
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	<link>http://wrocket.hampson.net.au</link>
	<description>Hornsby Heights Water Rocket Space Agency</description>
	<lastBuildDate>Thu, 19 Aug 2010 22:10:51 +0000</lastBuildDate>
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		<title>Horizontal &amp; Vertical Launcher Upgrade</title>
		<link>http://wrocket.hampson.net.au/?p=1166</link>
		<comments>http://wrocket.hampson.net.au/?p=1166#comments</comments>
		<pubDate>Sun, 18 Jul 2010 20:01:58 +0000</pubDate>
		<dc:creator>todd</dc:creator>
				<category><![CDATA[Development]]></category>
		<category><![CDATA[howto]]></category>
		<category><![CDATA[launcher]]></category>

		<guid isPermaLink="false">http://wrocket.hampson.net.au/?p=1166</guid>
		<description><![CDATA[Since we have been concentrating on water rocket cars for the last 6 months, our vertical water rockets have been collecting dust in the garage. So this weekend we have upgraded to launcher so it can be used for horizontal as well as vertical water rockets. This way we can launch the water rocket car [...]]]></description>
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		<title>Updates &#8211; Variable Height Launcher</title>
		<link>http://wrocket.hampson.net.au/?p=1132</link>
		<comments>http://wrocket.hampson.net.au/?p=1132#comments</comments>
		<pubDate>Sun, 04 Jul 2010 11:51:21 +0000</pubDate>
		<dc:creator>todd</dc:creator>
				<category><![CDATA[Development]]></category>
		<category><![CDATA[bottle]]></category>
		<category><![CDATA[launcher]]></category>
		<category><![CDATA[wrocket-car]]></category>

		<guid isPermaLink="false">http://wrocket.hampson.net.au/?p=1132</guid>
		<description><![CDATA[Due to the extra length of our new &#8220;Green Hornet&#8221; water rocket car, we need to do some updates to the launcher. The updates needed are - Lengthen the distance between the quick release and the launcher - Make the quick release height above the ground variable We have different rear wheels on the Green [...]]]></description>
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		<item>
		<title>Water Rocket Car R/C Development (continued)</title>
		<link>http://wrocket.hampson.net.au/?p=1001</link>
		<comments>http://wrocket.hampson.net.au/?p=1001#comments</comments>
		<pubDate>Wed, 07 Oct 2009 15:15:44 +0000</pubDate>
		<dc:creator>todd</dc:creator>
				<category><![CDATA[Development]]></category>
		<category><![CDATA[launcher]]></category>
		<category><![CDATA[nosecone]]></category>
		<category><![CDATA[R/C]]></category>
		<category><![CDATA[wrocket-car]]></category>

		<guid isPermaLink="false">http://wrocket.hampson.net.au/?p=1001</guid>
		<description><![CDATA[This week we have been working on the development of the Water Rocket Car&#8217;s remote control steering and fixing a few smaller issues with the launcher. RC Steering We realized a more powerful servo was needed. Thanks to George for his suggestion of reducing the arm length to get more power out of the existing [...]]]></description>
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		<title>Hydrostatic Silencer</title>
		<link>http://wrocket.hampson.net.au/?p=600</link>
		<comments>http://wrocket.hampson.net.au/?p=600#comments</comments>
		<pubDate>Fri, 14 Nov 2008 11:29:03 +0000</pubDate>
		<dc:creator>todd</dc:creator>
				<category><![CDATA[Development]]></category>
		<category><![CDATA[launcher]]></category>

		<guid isPermaLink="false">http://wrocket.hampson.net.au/?p=600</guid>
		<description><![CDATA[Regulars to the blog would know that I do a lot of testing / building late at night. One thing I like to do prior to launch is a pressure test of the wrockets pressure bottles, especially where there are multiple bottles and robinson couplings.Â  Even though these are not burst tests, it is loud [...]]]></description>
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		<title>Launch Rail</title>
		<link>http://wrocket.hampson.net.au/?p=584</link>
		<comments>http://wrocket.hampson.net.au/?p=584#comments</comments>
		<pubDate>Sun, 09 Nov 2008 14:33:40 +0000</pubDate>
		<dc:creator>todd</dc:creator>
				<category><![CDATA[Development]]></category>
		<category><![CDATA[launcher]]></category>

		<guid isPermaLink="false">http://wrocket.hampson.net.au/?p=584</guid>
		<description><![CDATA[Launch Rail After the ground hugging cruise missile on our last launch day due to wind knocking the wrocket off the launcher, we decided for safety&#8217;s sake to install a launch rail prior to our next launch day.Â  We looked at the different options available and decided on a launch rail and launch lugs for [...]]]></description>
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		<title>Launch Abort Test</title>
		<link>http://wrocket.hampson.net.au/?p=511</link>
		<comments>http://wrocket.hampson.net.au/?p=511#comments</comments>
		<pubDate>Sat, 18 Oct 2008 06:46:05 +0000</pubDate>
		<dc:creator>todd</dc:creator>
				<category><![CDATA[Development]]></category>
		<category><![CDATA[launcher]]></category>

		<guid isPermaLink="false">http://wrocket.hampson.net.au/?p=511</guid>
		<description><![CDATA[This weekend we did a few tests of the launch abort system. We used 1 bottle with 700ml of water and pressurized to 100psi. The valve holds the pressure well, we stand on the &#8220;T&#8221; section just in case the pressure release causes it to fly back up and hit you in the face. We [...]]]></description>
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		<title>Launch Abort Modification</title>
		<link>http://wrocket.hampson.net.au/?p=498</link>
		<comments>http://wrocket.hampson.net.au/?p=498#comments</comments>
		<pubDate>Mon, 13 Oct 2008 15:03:03 +0000</pubDate>
		<dc:creator>todd</dc:creator>
				<category><![CDATA[Development]]></category>
		<category><![CDATA[launcher]]></category>

		<guid isPermaLink="false">http://wrocket.hampson.net.au/?p=498</guid>
		<description><![CDATA[This is a modification to the launcher to allow us to abort a launch. If we have an emergency or a leak while the wrocket is pressurized we can safely relieve the pressure without a launch. We decided to put the valve between the pump and the quick release so that we could use it [...]]]></description>
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		<title>Minor Launcher Modifications</title>
		<link>http://wrocket.hampson.net.au/?p=276</link>
		<comments>http://wrocket.hampson.net.au/?p=276#comments</comments>
		<pubDate>Fri, 29 Aug 2008 16:19:38 +0000</pubDate>
		<dc:creator>todd</dc:creator>
				<category><![CDATA[Development]]></category>
		<category><![CDATA[launcher]]></category>

		<guid isPermaLink="false">http://wrocket.hampson.net.au/?p=276</guid>
		<description><![CDATA[On our last launch day we had a few small issues that I wanted to fix. We had a leak near the one-way valve at around 100psi The way the old launcher was molded the launch cable was at 45 degrees to the fill cable. Would be nice for them to be together The launch [...]]]></description>
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		<item>
		<title>Launcher Modifications</title>
		<link>http://wrocket.hampson.net.au/?p=77</link>
		<comments>http://wrocket.hampson.net.au/?p=77#comments</comments>
		<pubDate>Tue, 05 Aug 2008 03:08:04 +0000</pubDate>
		<dc:creator>todd</dc:creator>
				<category><![CDATA[Development]]></category>
		<category><![CDATA[launcher]]></category>

		<guid isPermaLink="false">http://wrocket.hampson.net.au/?p=77</guid>
		<description><![CDATA[We found that having the airhoses, pump and launcher all permanently connected ie: not quick release, its a little clumsy when its all connected, so we installed a quick release to separate them. This makes it easier getting it in the car and out to the middle of the oval. The quick release was inserted [...]]]></description>
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