---------------------------------------------------------- Zenith601-List Digest Archive --- Total Messages Posted Fri 12/26/08: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:45 PM - Re: Re: 601 problems (bryanmmartin@comcast.net) 2. 02:26 PM - Re: Brake Line Anchors () 3. 04:34 PM - Re: Re: 601 problems (David Downey) ________________________________ Message 1 _____________________________________ Time: 01:45:05 PM PST US From: bryanmmartin@comcast.net Subject: Re: Zenith601-List: Re: 601 problems The apperant forward sweep of the XL wing is to small to significantly effect the aerodynamics of the aircraft. A much larger forward sweep is needed to cause any significant effect. ----- Original Message ----- From: "David Downey" do you guys understand that lift and drag induced bending only see the structural sweep? Bryan Martin BSAE U of Michigan. ________________________________ Message 2 _____________________________________ Time: 02:26:54 PM PST US From: Subject: Re: Zenith601-List: Brake Line Anchors Another guy in my hangar did this first, so I take no credit for the idea.. We "armored" the plastic tubes with lengths of 1/4 inch aluminum tubing, running it from secured points a few inches from the master cylinders, then bent the tubing as needed, until running it out the side and down the rear of the leg. A little flare at each end keeps the tubing from chafing. He used Adel clamps on his, but since I am using CZAW composite legs, I used a worm-drive band clamp at the top, courtesy of the aviation department at Ace Hardware, and a fabricated standoff at the bottom of the leg. Looks better than naked plastic tubing, and protects from rocks. It's easier if you run the plastic into the tubing before bending. To those who pointed out how to make the forward sweep "disappear". I ain't got no nosewheel, so it's back to carpentry and build me some blocks to lift the mains. Thanks. Paul Rodriguez ----- Original Message ----- From: John Smith To: zenith601-list@matronics.com Sent: Wednesday, December 24, 2008 8:35 PM Subject: Zenith601-List: Brake Line Anchors I am about to run the hydraulic brake lines and wondering how other builders run the tubes and how to anchor the brake tubes outside the fuselage along the landing gear? I suppose drilling holes in the landing gear to put in anchors isn't a good idea? 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 3D http://www.matronics.com/contribution 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 3D http://www.matronics.com/Navigator?Zenith601-List 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 3D http://forums.matronics.com 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 3D ________________________________ Message 3 _____________________________________ Time: 04:34:51 PM PST US From: David Downey Subject: Re: Zenith601-List: Re: 601 problems the FSW is not an aerodynamic concern - it is a structural concern. ALL FSW built/designed from isotropic materials suffer from structural divergence with- bending due to increased AOA at the tip under those conditions. It is not a coincidence that the first "successful" FSW occurred in teh 90 wit h the advent of tailored structure courtesy of advanced composite materials - very highly anisotropic in nature. Only with those materials is it possi ble to desing any degree of FSW without a massive weight hit. The short lived Hansa bizjet is the only fsw comercial design extant. The g ermans tried during WWII but found that when the structure was befed enough to withstand the divergence issue, it was too heavy to offer any benefit. David L. Downey Harleysville-(SE) PA, USA --- On Fri, 12/26/08, bryanmmartin@comcast.net w rote: From: bryanmmartin@comcast.net Subject: Re: Zenith601-List: Re: 601 problems #yiv960487525 p {margin:0;}The apperant forward sweep of the XL wing is to small to significantly effect the aerodynamics of the aircraft. A much larg er forward sweep is needed to cause any significant effect. - ----- Original Message ----- From: "David Downey" do you guys understand that lift and drag induced bending only see the stru ctural sweep? Bryan Martin BSAE U of Michigan. =0A=0A=0A ------------------------------------------------------------------------------------- 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.