---------------------------------------------------------- RV8-List Digest Archive --- Total Messages Posted Mon 01/20/03: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:08 AM - Re: Re: Backyard Runway (Bert Penney) ________________________________ Message 1 _____________________________________ Time: 09:08:32 AM PST US Subject: RE: RV8-List: Re: Backyard Runway From: "Bert Penney" --> RV8-List message posted by: "Bert Penney" Just how loud is 72 dBa? I have a neighbor who has a Dodge diesel and I swear it is louder than any Cessna I've ever heard (except for the 185), but I have no idea what the sound level is. I'm glad to hear that there are silencers available. What kind of engine do you have in your aircraft? I have been toying with the possibility of buying a Delta Hawk diesel for a number of reasons including sound levels, but judging from the comments being made in rec.aviation.homebuilt, getting insurance with anything other than a certified engine under the hood is getting very difficult and expensive. Bert -----Original Message----- From: romeo.victor@t-online.de [mailto:romeo.victor@t-online.de] Subject: RE: RV8-List: Re: Backyard Runway --> RV8-List message posted by: romeo.victor@t-online.de Hi Bert, I build a RV8 in Germany and installed two silencer in the lower part of the cowling. They work well. Regulations require a maximum noise of 72 dBa, which will be achieved by this method. I hope to put some pictures in the net next month. Stephan Servatius 80303 Ready to fly, waiting for authorization "Bert Penney" schrieb: > --> RV8-List message posted by: "Bert Penney" > > The noise is something that I have been concerned about. The approach > path to the runway would not fly over any buildings, but there are > houses to each side of the path. I don't have an answer yet, but I want > to take steps to tone down the noise. My first thought was that, what > ever engine I eventually decide on, it should be turbo'd. Does anyone > have any suggestions as to how a person could make the plane quieter? > How about anyone from Europe? I understand that the noise regulations > there are quite a bit more stringent than they are here. Is that true? > If so, what steps do you take to keep the noise down? I live on the > prairies and, as a redneck, am qualified to put stacks on my plane, but > I think they might be a bit draggy :-) > > Bert > > -----Original Message----- > From: Pete Cowper [mailto:pcowper@webtv.net] > To: rv8-list@matronics.com > Subject: RV8-List: Re: Backyard Runway > > --> RV8-List message posted by: pcowper@webtv.net (Pete Cowper) > > >Are there neighbors living there that don't mind 360 straight pipe > cubes roaring over at 20'AGL? > > Come on, no challenge is too difficult for homebuilders. > > But . . . after Bert buys up at least a 1,500 foot strip of adjoining > property from his neighbors for a minimal landing strip . . . he will > then find himself in the position of municipal airports who must keep > puchasing complaining neighbor's properties or sound proofing their > homes. > > If buying up the neighborhood is still cheaper than paying a few decades > of hanger rent at the local airport, it's a thought. > > Otherwise, aren't there some helicopter kits out there? > > Pete Cowper > Lawyer-Pilots Bar Association member > RV-8 #81139 > N666PC reserved > > > > > > > -- Stephan Servatius Untere Hauptstr. 3 85461 Bockhorn Germany Tel. +49 (0) 8122 48383 Fax +49 (0) 8122 902188 Mobil +49 (0) 179 105 9749