---------------------------------------------------------- Zenith601-List Digest Archive --- Total Messages Posted Fri 09/26/08: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:05 AM - Sound proofing (K Dilks) 2. 03:33 AM - Re: Sound proofing (Paul Mulwitz) 3. 08:23 AM - Re: Sound proofing (Dirk Zahtilla) ________________________________ Message 1 _____________________________________ Time: 01:05:05 AM PST US Subject: Zenith601-List: Sound proofing From: "K Dilks" Hi all, what are you guys using to sound proof the forward fusalage? Where to get it etc etc .? My wife has told me to make it a quiet as possible........................send her gliding i think! Thanks Kev -------- Austria ...guess where I work! Read this topic online here: http://forums.matronics.com/viewtopic.php?p 6260#206260 ________________________________ Message 2 _____________________________________ Time: 03:33:25 AM PST US From: Paul Mulwitz Subject: Re: Zenith601-List: Sound proofing Hi Kev, I'm using cushioned headsets to limit noise. They may not be as fashionable as lots of padding, but they weigh a lot less. Paul XL getting close do not archive At 01:01 AM 9/26/2008, you wrote: >Hi all, > > what are you guys using to sound proof the forward fusalage? > Where to get it etc etc .? > My wife has told me to make it a quiet as > possible........................send her gliding i think! > > Thanks >Kev ________________________________ Message 3 _____________________________________ Time: 08:23:42 AM PST US From: "Dirk Zahtilla" Subject: Re: Zenith601-List: Sound proofing A couple of ideas... 1. I tested (on a previous plane) a 3 blade prop vs. 2 blade and the 3 blade is definitely quieter. It also gave better climb but slightly less top speed. 2. any soft material (fabric etc.) that is covering the large areas of sheet metal will cut down on the drum effect. It doesn't necessarily have to be thick and heavy. Fiberglass insulation covered with something is really good, the thicker the better, there is a product called comfort therm from Johns Manville that's really nice. It's very fine and doesn't have the nasty qualities of regular fiberglass, like glass splinters and airborne particles. On that note I just found, at Home Depot, an interesting product. It's 1/8" foil backed foam with self adhesive on the other side, for insulating ductwork. It didn't say if it's fire rated and I need to check with the manufacturer (or buy some and try to burn it). Also the canopy thickness and square footage has a big effect on sound transmission. I don't think theres much we can do about the thickness and the only choice on canopy is the 601 vs 650 sizes. PS you can also buy some stuff from AS but it's really pricey. Dirk ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message zenith601-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Zenith601-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/zenith601-list Browse Digests http://www.matronics.com/digest/zenith601-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.