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12-04-2017, 02:35 PM
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Join Date: Jan 2005
Location: 57AZ - NW Tucson area
Posts: 10,011
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Fuel valve location Q.
I'm removing the Vans fuel selector and mounting an Andair valve in the -10 QB kit I bought. At the same time I'm relocating it 3 inches down to copy the newer factory location.
It would be easier assembly and fabrication for me it the valve could move 1 inch or so further forward.
Can anyone with a finished -10 tell me if this could cause problems? I plan on using the AeroSport center console it that makes a difference.
__________________
Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
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12-04-2017, 02:52 PM
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Join Date: Dec 2011
Location: Livermore, CA
Posts: 6,797
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The center tunnel top has a hole for the valve shaft pre-drilled, so you'll need to patch that in some way. Check that the valve handle/pointer will clear your center console in the new location. Obviously none of the fuel line bends will be per-plans if you move forward, but I don't think there's anything that can't be made to work. I'd strongly suggest the mod some have done, of putting a side access panel into the bottom of the tunnel, to get a wrench in there for R&R the fuel filter. Going from the top is painful, and with the valve more forward may be even harder, not sure.
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12-04-2017, 03:11 PM
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Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,035
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It is a pain if you have to loosen shoulder harnesses whenever you want to reach the fuel valve.......
__________________
Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.
Scott McDaniels
Van's Aircraft Engineering Prototype Shop Manager
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
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12-04-2017, 06:58 PM
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Join Date: Jan 2005
Location: 57AZ - NW Tucson area
Posts: 10,011
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Quote:
Originally Posted by rvbuilder2002
It is a pain if you have to loosen shoulder harnesses whenever you want to reach the fuel valve.......
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Yes, I understand that, but would <1 inch make that much difference?
__________________
Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
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12-05-2017, 07:43 AM
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Join Date: Dec 2010
Location: Culpeper, VA
Posts: 693
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Quote:
Originally Posted by az_gila
I'm removing the Vans fuel selector and mounting an Andair valve in the -10 QB kit I bought. At the same time I'm relocating it 3 inches down to copy the newer factory location.
It would be easier assembly and fabrication for me it the valve could move 1 inch or so further forward.
Can anyone with a finished -10 tell me if this could cause problems? I plan on using the AeroSport center console it that makes a difference.
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I'm using the Andair valve in the stock location with the AeroSport center console. Here is a (bad) picture.

__________________
-Joe Wilbur (N520LW)
Phase II - 11/2017
First flight - 8/2017
RV-10 Build Log
Last edited by jwilbur : 12-05-2017 at 11:59 AM.
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12-05-2017, 09:04 AM
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Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,035
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Quote:
Originally Posted by az_gila
Yes, I understand that, but would <1 inch make that much difference?
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I can't answer that... everyone's body is slightly different.
If you were able to just barely comfortably reach it in the stock location, 1" fwd could cause it to be a stretch.
I am 5'9" and about average leg to torso proportioned (30" inseam).
When I fly either of our RV-10s (with the rudder pedals in the center mounting position) and my shoulder blades remaining against the seat back, I can just reach the fuel valve with my arm fully extended straight. I don't feel like I am stretching to reach it but I would be if it were any further fwd.
If using the center console raises the elevation of the handle that would offset/improve any fwd move slightly (but I am not sure how much).
__________________
Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.
Scott McDaniels
Van's Aircraft Engineering Prototype Shop Manager
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
Last edited by rvbuilder2002 : 12-05-2017 at 09:06 AM.
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12-05-2017, 12:14 PM
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Join Date: Jan 2005
Location: 57AZ - NW Tucson area
Posts: 10,011
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Quote:
Originally Posted by rvbuilder2002
I can't answer that... everyone's body is slightly different.
If you were able to just barely comfortably reach it in the stock location, 1" fwd could cause it to be a stretch.
I am 5'9" and about average leg to torso proportioned (30" inseam).
When I fly either of our RV-10s (with the rudder pedals in the center mounting position) and my shoulder blades remaining against the seat back, I can just reach the fuel valve with my arm fully extended straight. I don't feel like I am stretching to reach it but I would be if it were any further fwd.
If using the center console raises the elevation of the handle that would offset/improve any fwd move slightly (but I am not sure how much).
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Thanks Scott.
The center console keeps the fuel valve at essentially the same elevation, so I'll work on new bracketry to keep the valve handle in the stock location.
The revised brackets are needed since I'm dropping the actual valve down 2.5 to 3 inches inside the tunnel like the later kits.
The Andair valve and it's extension arrive from the UK today.
__________________
Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
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12-05-2017, 01:36 PM
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Join Date: Jun 2005
Posts: 434
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Quote:
Originally Posted by az_gila
The revised brackets are needed since I'm dropping the actual valve down 2.5 to 3 inches inside the tunnel like the later kits.
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I must have an earlier kit with a higher bracket, why the change?
__________________
Dave Ford
Cadillac, Mi
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12-05-2017, 04:02 PM
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Join Date: Dec 2007
Location: Peachtree City, GA
Posts: 144
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Gil,
Are you using the Andair extension?
It does have two universal joints that may allow you to move the actual valve location forward without moving the handle.
__________________
Scott Flandermeyer
Rv-10 TDI 300 hrs
Fayettevile, GA
2020 VAF Donation complete
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12-05-2017, 04:32 PM
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Join Date: Dec 2011
Location: Livermore, CA
Posts: 6,797
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Quote:
Originally Posted by rvdave
I must have an earlier kit with a higher bracket, why the change?
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Change was made around spring 2008. It simplifies the routing of the rear seat hot air SCAT. At the same time the fuel line routing was simplified. It came with a extension for the valve shaft, and a much nicer handle with a pull-up-to-unlock feature. Even I - who self-admits to having no aestetic tastes - thought the original handle did not look like it belonged in an airplane.
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