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Sean Blair
Joined: 09 Jan 2006 Posts: 39 Location: Colorado Springs
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Posted: Sun Feb 26, 2006 8:15 pm Post subject: Andair Fuel Valve |
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Okay....I'm still learning, but on the Andair Valve it seems that many
people are utilizing the valve with a "left" and "right" selection only.
Wouldn't it be beneficial to have a "both" selection as well, like the
FS20X4?
Sean B.
#40225
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_________________ Sean S. Blair
#40225
N967SB (reserved) |
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Tim(at)MyRV10.com Guest
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Posted: Sun Feb 26, 2006 8:53 pm Post subject: Andair Fuel Valve |
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I don't think you'd want this on a low-wing plane.
Besides that, it's easier to practice good fuel management and have
reserve if you're always keeping the tanks separate.
Tim Olson - RV-10 N104CD - Flying
do not archive
Sean Blair wrote:
Quote: |
Okay....I'm still learning, but on the Andair Valve it seems that many
people are utilizing the valve with a "left" and "right" selection only.
Wouldn't it be beneficial to have a "both" selection as well, like the
FS20X4?
Sean B.
#40225
Do Not Archive
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Sean Blair
Joined: 09 Jan 2006 Posts: 39 Location: Colorado Springs
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Posted: Sun Feb 26, 2006 9:18 pm Post subject: Andair Fuel Valve |
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Thanks Tim. Knowing what you know now, would you choose the FS20X3 (180
degrees) or FS20X7 (45 degrees) based on installation aspects? Also, male
or female fittings?
Sean B.
#40225
Do Not Archive
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_________________ Sean S. Blair
#40225
N967SB (reserved) |
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Tim(at)MyRV10.com Guest
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Posted: Sun Feb 26, 2006 9:47 pm Post subject: Andair Fuel Valve |
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That's a tough one. I'd like to see how Larry's install goes with the
FS20X7 valve before I'd decide. On one hand, the FS20X3 is kind of
weird with the inlets on the Left and Front. On the other hand, I can't
tell if there is going to be any clearance problem with the outlet
passing by the tubes on the new valve. My guess is there won't be any
problem and the FS20X7 would be the best valve for the job. I would
get 90 degree Male -6 fittings on the valve. I wouldn't get NPT
fittings and add my own elbows, I'd get the built-in Andair elbows so
that all 3 connections come off the bottom. I am not having any
problems at all with my install, and I'm appreciating my flex fuel
lines greatly. I do think though that if I could start all over
I'd be using the 90 degree (45 to Left and 45 to right) valve. It'll
be great to see how Larry's comes out. The proof will be when the
fuel filter and pump are all connected. I think the hardest part
is the positioning and fittings used to mount the valve to the filter,
while still allowing clearance for the elevator bellcrank that hooks
up to the sticks.
I did learn something from my DAR who happens to work at Cirrus.
Cirrus uses Andair valves in their aircraft. So I guess even the
pros like them.
Tim Olson - RV-10 N104CD - Flying
do not archive
Sean Blair wrote:
[quote]
Thanks Tim. Knowing what you know now, would you choose the FS20X3 (180
degrees) or FS20X7 (45 degrees) based on installation aspects? Also, male
or female fittings?
Sean B.
#40225
Do Not Archive
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Sean Blair
Joined: 09 Jan 2006 Posts: 39 Location: Colorado Springs
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Posted: Sun Feb 26, 2006 10:32 pm Post subject: Andair Fuel Valve |
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This is very helpful advice. Thanks..........again.
Sean
#40225
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_________________ Sean S. Blair
#40225
N967SB (reserved) |
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rv10es(at)earthlink.net Guest
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Posted: Mon Feb 27, 2006 4:29 am Post subject: Andair Fuel Valve |
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If you have a "Both" selection in a low wing plane, one tank will run
dry first. You will be left with fuel in one tank and a fuel starved
engine!
Do Not Archive
rob kermanj
rv10es(at)earthlink.net
On Feb 26, 2006, at 11:12 PM, Sean Blair wrote:
Quote: |
Okay....I'm still learning, but on the Andair Valve it seems that many
people are utilizing the valve with a "left" and "right" selection
only.
Wouldn't it be beneficial to have a "both" selection as well, like the
FS20X4?
Sean B.
#40225
Do Not Archive
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LarryRosen
Joined: 16 Jan 2006 Posts: 415 Location: Medford, NJ
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Posted: Mon Feb 27, 2006 12:28 pm Post subject: Andair Fuel Valve |
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If you use an extension and coupler you can orient the valve any way
you want. You would be able to rotate the FS20x3 45 degrees and still
have off to the rear, right to the right and left to the left. The
coupler (rotary adapter) consists of two parts each with a female socket
to accept the extruded extension tube. It allows one to orientate the
upper section differently with respect to the lower section. Nuts and
bolts are supplied to clamp each section together in the desired
position. You can see the adapter here
<http://www.andair.co.uk/system/index.html>
If I were to do it again I would get the valve with the new elbow (as
long as it can be rotated to point down) that will connect the flared
tubing for both inlets and the female NPT connection on the bottom. I
got the valve configured with all female NPT fittings because I thought
I would install it just like the stock vans valve. That did not work
out since the Andair valve is larger than the stock vans valves and I
had side wall interference issues.
I do believe connecting the fuel filter and fuel pump will be able to be
accomplished without interferences with the control mechanism. But this
area is tight, with lots of bends. No matter what the configuration
using tubing is going to be challenging. Flex hoses would be a great
solution, but IMHO I would prefer all aircraft grade components in the
installation of the fuel lines.
Larry Rosen
Sean Blair wrote:
Quote: |
Thanks Tim. Knowing what you know now, would you choose the FS20X3 (180
degrees) or FS20X7 (45 degrees) based on installation aspects? Also, male
or female fittings?
Sean B.
#40225
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_________________ Larry Rosen
#40356
N205EN (reserved)
<http> |
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jjessen(at)rcn.com Guest
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Posted: Mon Feb 27, 2006 1:40 pm Post subject: Andair Fuel Valve |
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The flexible hoses are not aircraft grade? I thought you could get flexible
fuel hoses that are?
John Jessen
~328 (on the road and thus not building, darn)
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LarryRosen
Joined: 16 Jan 2006 Posts: 415 Location: Medford, NJ
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Posted: Mon Feb 27, 2006 4:52 pm Post subject: Andair Fuel Valve |
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Installed the rest of the fuel system, less the 90 degree elbows to
connect to the fuel valve and less the tubing connecting the flowscan
unit to the firewall forward. I need some more 3/8" tubing. Too much
rework . Web site was updated
<http://lrosen.nerv10.com/Construct/Log/Fuselage/Fuel_lines/index.html>
Small photo attached.
--
Larry Rosen
RV-10 #356
http://lrosen.nerv10.com
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_________________ Larry Rosen
#40356
N205EN (reserved)
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