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jakereyna(at)yahoo.com
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 Posted: Fri Nov 30, 2007 9:36 am Post subject: Flap position sensor |
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Here is my low cost solution, $50, to a flap position
sensor. I'm putting this in the public domain for all
to use.
It starts with the standard VW fuel sender used in the
XL. I realized that the fuel sender is just a position
sensor and with minor modifications could be used for
a flap position sender. I purchased a Equus #7361 fuel
gauge for $17 from Schucks and the fuel sender
#221-012 from egauges.com, $24.
Go to www.413sx.com for pictures of the prototype.
I used a piece of Z channel to mount the fuel sender.
The Z is not level to compensate for the flap tube
dropping as it extends. I used a tie wrap on the flap
tube with a second linked like a chain for the fuel
sender rod. The tie wrap for the sender rod should be
at least 1/4" diameter so the sender rod doesn't bind.
Remember, things are moving back and forth and up and
down. Another option would be to use a radiator clamp
on the flap tube with a small D-ring for the fuel
sender rod.
I was able to pry off the trim ring on the fuel gauge
and remove the face to repaint black. Ended up wiping
off the existing paint with acetone and then very
lightly spraying with flat black. Once the fuel sender
was installed in the position that allowed for the
correct travel, I marked the fuel gauge with the max
up and down position. I will make intermediate marks,
1/3 and 2/3 flap when the wing is installed.
This is easier to do if you haven't riveted the side
skin.
One more note. I'm going to be using the Oregon Aero
portable seat cushions. I had a bottom, it's in the
picture and the back piece of plywood matches the
height of the Oregon Aero full back. They are a bit
pricey, but no more than what is available for the XL.
Jake
Be a better pen pal.
Text or chat with friends inside Yahoo! Mail. See how. http://overview.mail.yahoo.com/
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Jaybannist(at)cs.com
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| Posted: Fri Nov 30, 2007 10:55 am Post subject: Flap position sensor |
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Jake,
Not to disparage your ingenuity or your creativity, but I will be using a somewhat more reliable and less expensive flap position sensor, actually sensors. They are blue and I got them with the birth package, so they were essentially free. Mine happen to be a little high maintenance, though: glasses, cataract removal, detached retina, etc. With the XL, my take is that they are either up or down, not "nuanced" between.
Your solution is quite clever. Have fun!
Jay in Dallas 601XL N2630J
Jake Reyna <jakereyna(at)yahoo.com> wrote:
| Quote: |
Here is my low cost solution, $50, to a flap position
sensor. I'm putting this in the public domain for all
to use.
|
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shilcom
Joined: 28 Sep 2007
Posts: 63
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| Posted: Fri Nov 30, 2007 2:27 pm Post subject: Flap position sensor |
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My method also, however a flap indicator might be ok so it's in front of you and MIGHT, but probably not, prevent a Flap Down, heavily loaded go-around, maybe with a little ice on the wings.......want any more killer ideas. some planes don't fly so good that way. I put a bigger engine in my c-150 so I could make some of those mistakes. My flap indicator on the c-150 is "lever up and in my way" is flaps down. bob U.
[quote] ---
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pmaxpmax(at)HOTMAIL.COM
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| Posted: Sat Dec 01, 2007 9:45 am Post subject: Flap position sensor |
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I just look out the window to see how much gap there is between the flap and the wing. I'm not trying to be a smart aleck. It works. 150 hours.
Phil Maxson
601XL/Corvair
Northwest New Jersey
> Date: Fri, 30 Nov 2007 06:49:52 -0800
| Quote: | From: jakereyna(at)yahoo.com
Subject: Flap position sensor
To: zenith-list(at)matronics.com
--> Zenith-List message posted by: Jake Reyna <jakereyna(at)yahoo.com>
Here is my low cost solution, $50, to a flap position
sensor. I'm putting this in the public domain for all
to use.
<SNIP>
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You keep typing, we keep giving. Download Messenger and join the i’m Initi_joinnow' target='_new'>Join in! [quote][b]
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videoflyer(at)aol.com
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| Posted: Sat Dec 01, 2007 11:24 am Post subject: Flap position sensor |
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On a 601, all you have to do is look at the flaps. I see no need for a sensor and position indicator in the cockpit!
Dave
601XL/Corvair/N618PZ (50 hours)
Subject: RE: Flap position sensor
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