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Model Forum / Radio Controlled / Air Models / October 2009Canisters
Canisters make the engines quieter and then you can play with prop tip speeds to keep your neighbors happy. I want/need to do this. Does anyone know if there are canister mufflers available for a BME 44 or a BME 50? Jim Branaum AMA 1428 >Canisters make the engines quieter and then you can play with prop tip >speeds to keep your neighbors happy. >I want/need to do this. >Does anyone know if there are canister mufflers available for a BME 44 or a >BME 50? I think what you need is a header that will fit those engines. Then the cannister attaches to the header--and any right-sized cannister should do. <http://www.google.com/search?hl=en&q=KS+cannister+mufflers&sourceid=navclient-ff &rlz=1B3GGGL_enUS300US300&ie=UTF-8> I don't know enough about BME engines to guess whether headers already on the market will fit them ... I want to experiment with making my own cannisters ... some day. http://www.rcaerobats.net/Making_Quiet.htm Marty  SignatureBig-8 newsgroups: humanities.*, misc.*, news.*, rec.*, sci.*, soc.*, talk.* See http://www.big-8.org for info on how to add or remove newsgroups. >>Canisters make the engines quieter and then you can play with prop tip >>speeds to keep your neighbors happy. [quoted text clipped - 21 lines] > > Marty Humm, I've never "brazed" before. He makes it sound easy. mk > Humm, I've never "brazed" before. He makes it sound easy. > mk With good rod and flux and enough heat, it isn't much different than soldering. On drawback is the fact that the brazing rod mixes (on the molecular level) with the steel in the cans and header, and may make a new alloy that is more prone to cracking at the edge of the braze zone. The heat required and how it transitions out into the steel of the can also contribute to possible cracking. One of my favorite ways to make can mufflers is with JB Weld. It will not hold a large structural load well by itself, but a little bending, pop riveting and careful fitting to carry the load and let the JB seal is very durable. SignatureJim in NC |
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