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   5         <TITLE>W9YA's Elegant Launch Controller</TITLE>
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  11 <P ALIGN=CENTER STYLE="margin-bottom: 0in"><IMG SRC="CELstart-rocket.png" NAME="graphics1" ALIGN=LEFT WIDTH=64 HEIGHT=64 BORDER=0><IMG SRC="CELstart-rocket.png" NAME="graphics2" ALIGN=RIGHT WIDTH=64 HEIGHT=64 BORDER=0><B><FONT SIZE=7><I>The</I></FONT><FONT SIZE=7><BR>W9YA
  12 Elegant Launch Controller</FONT><BR><BR><FONT SIZE=6>The Rocketeer's </FONT><FONT SIZE=6><I>favorite</I></FONT>
  13 <FONT SIZE=6>Launch Controller System</FONT></B></P>
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  30                         <UL>
  31                                 <LI><P STYLE="margin-bottom: 0in"><A NAME="nav1"></A><A HREF="index.html">Home</A></P>
  32                                 <LI><P STYLE="margin-bottom: 0in"><A HREF="Design_Goals.html">Design Goals</A></P>
  33                                 <LI><P STYLE="margin-bottom: 0in"><A HREF="NEWER_ComComposite_remote_launcher_new_added_coil_isolation.pdf">The Design Schematic</A></P>
  34                                 <LI><P STYLE="margin-bottom: 0in"><A HREF="Parts_List.html">Parts List</A></P>
  35                                 <LI><P STYLE="margin-bottom: 0in"><A HREF="Construction.html">Construction Info and Notes</A></P>
  36                                 <LI><P STYLE="margin-bottom: 0in"><A HREF="Testing_Diagnostics.html">Testing, Diagnostics, and Usage Procedures</A></P>
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  40                 <center><a href="pics/Controller_58_small.JPG">
  41                 <img src="pics/Controller_58_small_er.JPG" width="400" height="300" border="0" alt=""></a>
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  43 <p>
  44 Design Goals;
  45 <br><br>
  46 - Complete safety when used in the correct manner. i.e. NO surprise ignitions.<br>
  47 - Single battery design.<br>
  48 - Uses only single pole switches for reliability and safety. <br>
  49 - Parts availability from chain store local outlets that also have internet ordering.<br>
  50 - Low cost and minimal parts count without sacrificing either reliability or ruggedness.<br>
  51 - LOW CURRENT igniter (continuity) testing; less than 10ma with a 12 volt battery.<br>
  52 - Continuity sounders at both the pad and launch units.<br>
  53 - Full diagnostics of both units AND the cabling without the need for additional test equipment.<br>
  54 - High current paths are direct with only the relay contacts and a high-current safety switch between the battery and the igniter.<br>
  55 - Sounders at both ends warn about incorrect operation, including launch key insertion, in a direct and easy to understand manner.<br>
  56 - Operational range of 750-1000 feet is possible using 16 gauge 3 conductor power cable. Longer range with simple range extenders.<br>
  57 - Either of the two units may be used standalone for low power launches. (Requires cable adapters.)<br>
  58 <br><br>
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  63 <p>
  64 Rocket Graphics courtesy of the Crystal Space Community.
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