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<br />ru -- - <br /> <br />- powered by a couple of AA batteries <br />_ has a launch button and a safety key (can't launch unless safety key and launch button are <br />pressed simultaneously) <br />b) the Igniter Is a small bent wire wfth some type of chemical at the bend that will glow hot when a <br />small current is passed through the wire. The bent end of the wire is placed up into the motor nozzle and held in place <br />with a plug. The opposite ends of the wires are attached to alligator clips attached to the chord that lead back to the <br />hand held launch controller. When the launch button Is pushed, a small current makes the chemical glow hot which <br />Ignites the ammonium perchlorate in the rocket motor. <br /> <br />8. I guess the best I can tell you is that we keep everyone back a safe distance (at least I think it's a safe distance). <br />We keep everyone from screwing around too much. We all pay attention to each launch (everyone yells out a <br />countdown). When we set the rocket for launch only the kids that are launching are allowed around the rockets <br />(usually all the other kids are busy chasing the rockets previously launched anyway). The launch safety key <br />lessens the likelihood of an unexpected launch. Everyone is within speaking range so I guess If there Is a misfire I <br />would tell everyone to hold positions, walt a minute or so, me (or other den leaders) would approach the rocket. <br />pull out the Igniter, manually release the motor and quickly put It in a bucket of water. <br /> <br />I hope thIs covers anything you need to know. let me know If it does not. <br /> <br />I am In the process of filling out the special event permit application now and the application form says that I need to <br />attach copies of any permits I may need to the application before getting It back to Centervllle City Council. Below, you <br />say that you will Issue a permit after city council approval. I'm not sure how much of this Is in your control, but what I <br />want to avoid Is: waiting until the next city council meeting for them to review the special permit application; they see <br />that I have no fire permit; they reject it because of that; then It goes back to you for a permit; a couple of days pass <br />before you can Issue a permit; then I wait 2 weeks until the next council meeting... etc, etc... If I can't get go/no go at <br />the next city council mtg (March 25th I believe) I need to find another venue. <br /> <br />Thanks for your time and consideration. <br /> <br />TOM NELSON <br />Senior St:ructur.ll Designer <br />Ericksen Roed . Assadates <br />Direct 651-414-6125 <br />Office 651-251-7570 <br />www.erlcksenroed.com <br /> <br />From: David BnKIer [mal1to:dav!d.bruder@centennlalfire.org] <br />Sent: Wednesday, March 18, 2009 3:35 PM <br />To: Nelson, Tom; Jerry Streich <br />Cc: 'TBender@centervlllemn.com' <br />SUbject: RE: cub scout rocket launch <br /> <br />Hello Tom, <br /> <br />With the Information I have received from you and Teresa wfth The City of Centerville about the event you are setting <br />up, I have the follOWing Information. <br />The Minnesota State Fire Code 3301.1.4 Rocketry. states; The storage, handling and use of model and high-power <br />rockets shalf comply with the requirements of NFPA 1122, NFPA 1125 and NFPA 1127. NFPA 1122 chapter 41s what I <br />think your event will fall under. I will need the following Information to confirm this. <br /> <br />3 <br />