Today's Message Index:
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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
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| Subject: | 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" <planecrazydld@yahoo.com>
do you guys understand that lift and drag induced bending only see the structural
sweep?
Bryan Martin
BSAE U of Michigan.
Message 2
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| Subject: | Re: 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<mailto:zenithlist@yahoo.com>
To: zenith601-list@matronics.com<mailto: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?
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Message 3
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| Subject: | 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 <bryanmmartin@comcast.net> w
rote:
From: bryanmmartin@comcast.net <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" <planecrazydld@yahoo.com>
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
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