tag:blogger.com,1999:blog-3612012025300219489.post3371419293684456311..comments2024-03-28T11:34:11.082-04:00Comments on Model Rocket Building: Centuri Baffle EvolutionChris Michielssenhttp://www.blogger.com/profile/06907925631001358372noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-3612012025300219489.post-52007438468256233062017-01-11T12:12:02.164-05:002017-01-11T12:12:02.164-05:00Hi Lonnie,
That mistake has been made by quite a f...Hi Lonnie,<br />That mistake has been made by quite a few. The baffle also has to be closer to the nose end for C/G reasons. I had a baffle in my Semroc Centurion. After 15 flights (and too many dings and repairs) I cut open the rocket to see the baffle. the bottom thick card stock plate (closer to the engine) had soot on it but no burns! The soot buildup actually insulated the punched ring from more damage.<br />I should say, I coated the punched disks with white glue to protect them. The instructions recommended to do that.<br />http://modelrocketbuilding.blogspot.com/2013/01/centurion-autopsy.htmlChris Michielssenhttps://www.blogger.com/profile/06907925631001358372noreply@blogger.comtag:blogger.com,1999:blog-3612012025300219489.post-88495072836010424202017-01-11T12:05:37.895-05:002017-01-11T12:05:37.895-05:00Hi Naoto,
Interesting, I found the same thing in m...Hi Naoto,<br />Interesting, I found the same thing in my Centurion. I never built the Estes Bandit. In the Centurion I could shake it and hear the crud still left inside. Chris Michielssenhttps://www.blogger.com/profile/06907925631001358372noreply@blogger.comtag:blogger.com,1999:blog-3612012025300219489.post-71459032757345701372017-01-11T06:22:15.150-05:002017-01-11T06:22:15.150-05:00An ejection baffle works very well in a rocket lon...An ejection baffle works very well in a rocket long enough for it to fit, like the Long Tom. My brother put a baffle in his Red Max in 1973. Unfortunately, the Max's body tube was so short he had to put it very close to the motor mount in order to still have room for the parachute. The 'chute still got singed and the bottom disc of the baffle eventually burned out. I tried a balsa version of a baffle in a short rocket long ago and it also burned through. Then I tried one in a long rocket and it worked perfectly.Lonniehttps://www.blogger.com/profile/12140603984121094463noreply@blogger.comtag:blogger.com,1999:blog-3612012025300219489.post-19089511006349921392017-01-10T23:50:46.384-05:002017-01-10T23:50:46.384-05:00One annoying feature of the ejection ducting syste...One annoying feature of the ejection ducting system in the Estes Bandit is its tendency to trap the particulates -- before long your rocket ends up sounding like maracas.Naoto Kimurahttps://www.blogger.com/profile/02762712349150120196noreply@blogger.comtag:blogger.com,1999:blog-3612012025300219489.post-38002134505596612622017-01-10T12:29:03.334-05:002017-01-10T12:29:03.334-05:00Hi BAR,
You shouldn't need any wadding when a ...Hi BAR,<br />You shouldn't need any wadding when a (correctly installed) baffle is used. I've used them without wadding and there is no melting or burns in the parachute. Many use a little wadding with a baffle for extra protection, just in case!<br />Chris Michielssenhttps://www.blogger.com/profile/06907925631001358372noreply@blogger.comtag:blogger.com,1999:blog-3612012025300219489.post-72301106646273820402017-01-10T09:53:32.457-05:002017-01-10T09:53:32.457-05:00I'm wondering about the use of wadding with ba...I'm wondering about the use of wadding with baffles. Is it still necessary? I've seen claims both ways. I use a little wadding with a baffle, "just in case". Any opinions?BAR Geezerhttps://www.blogger.com/profile/15981340513882399606noreply@blogger.com