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09-15-2014, 09:06 PM
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Join Date: Apr 2007
Location: -
Posts: 502
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Critique my fuel system layout
(old message removed)
Last edited by digidocs : 12-30-2019 at 10:37 PM.
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09-15-2014, 09:49 PM
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Join Date: Dec 2008
Location: Big Sandy, WY
Posts: 2,567
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Aren't you missing a bypass tube?
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Actual repeat offender.
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09-16-2014, 05:01 AM
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Join Date: Jan 2005
Location: Ontario, Canada
Posts: 1,544
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That fuel filter is not going to be easy to service. Build a door in the bottom of the fuse directly under the filter. You will thank me every year at annual time!
I have installed access doors on quite a few RVs and rockets, including a RV10.
They are very similar in construction to all the other access panels on the aircraft.
__________________
Tom Martin RV1 pilot 4.6hours!
CPL & IFR rated
EVO F1 Rocket 1000 hours,
2010 SARL Rocket 100 race, average speed of 238.6 knots/274.6mph
RV4, RV7, RV10, two HRIIs and five F1 Rockets
RV14 Tail dragger
Fairlea Field
St.Thomas, Ontario Canada, CYQS
fairleafield@gmail.com
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09-16-2014, 06:00 AM
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Join Date: Jun 2006
Location: Delaware, OH (KDLZ)
Posts: 4,196
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Looks just fine.
You only need to worry about the rigidity of lines FWF.
As Tom mentioned, an access panel will make life easier. I put one in on the right side of the tunnel. I know folks that have installed them on both sides of the tunnel as well.
I've already had the opportunity to take both the filter and pump out and it was not a problem.
This is even more important if you install a center console, which makes taking the tunnel cover off more difficult.
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09-16-2014, 06:57 AM
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Join Date: Jul 2009
Location: Mojave
Posts: 4,652
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Quote:
Originally Posted by rleffler
...You only need to worry about the rigidity of lines FWF...
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This advice is contrary to standard aircraft practice. Even if there is no perceived relative movement between two fixed points, such as between a fuel selector and a firewall bulkhead fitting, there should be enough degrees of bend along the run to accommodate expansion or flexing of the structure. The key point is to bend the tube enough to make sure it is not a structural element.
That said, the picture shows about 90 degrees (total) in that Z bend, and that's plenty as long as the pump and filter can float slightly in rubber mounts. If they are truly rigidly mounted, then I might be uncomfortable with the line from the selector valve.
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WARNING! Incorrect design and/or fabrication of aircraft and/or components may result in injury or death. Information presented in this post is based on my own experience - Reader has sole responsibility for determining accuracy or suitability for use.
Michael Robinson
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Harmon Rocket II -SDS EFI
RV-8 - SDS CPI
1940 Taylorcraft BL-65
1984 L39C
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09-16-2014, 07:42 AM
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Join Date: Sep 2009
Location: St. Louis, MO
Posts: 1,788
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I see that the filter is supported, but don't see that the fuel pump is supported. That's a lot of unsupported mass. I would also agree that adding a large removable panel in the right side would be a good idea. I have one, and it is not a problem to remove my filter to inspect it.
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Bill Peyton
RV-10 - 1125 hrs
N37CP
First Flight Oct 2012
Aviation Partners, LLC
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09-16-2014, 07:47 AM
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Join Date: Dec 2008
Location: Big Sandy, WY
Posts: 2,567
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Duh on the bypass. Actually I think if your tunnel cover comes off fairly easy you don't need an extra access. Screws are screws and its good to look in there periodically.
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Actual repeat offender.
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09-16-2014, 12:43 PM
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Join Date: Apr 2010
Location: Ridgeland, SC
Posts: 2,589
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Plumbing the new version AFP pumps is a breeze. Looks like you do have enough offset between the valve and the filter. Like Tom and Bob said, the filter in the tunnel is a little bit of a pain. Several customers now are mounting filters in the wing roots to make life alittle easier. Some of our European customers have mounted gascolators in the roots.
I would hate to spill fuel in the tunnel or cabin of an RV10---especially after all the hard work, carpet, leather, consoles etc.
Tom
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Tom Swearengen, TS Flightlines LLC, AS Flightlines
Joint Venture with Aircraft Specialty
Teflon Hose Assemblies for Experimentals
Proud Vendor for RV1, Donator to VAF
RV7 Tail Kit Completed, Fuse started-Pay as I go Plan
Ridgeland, SC
www.tsflightlines.com, www.asflightlines.com
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09-16-2014, 12:49 PM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,420
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Quote:
Originally Posted by TS Flightlines
I would hate to spill fuel in the tunnel or cabin of an RV10---especially after all the hard work, carpet, leather, consoles etc.
Tom
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Luckily the floor of the tunnel is lower than the floor where the carpet is.
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Mike Starkey
VAF 909
Rv-10, N210LM.
Flying as of 12/4/2010
Phase 1 done, 2/4/2011 
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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09-16-2014, 03:38 PM
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Join Date: Mar 2014
Location: Laguna Hills, CA
Posts: 1,805
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Quote:
Originally Posted by TS Flightlines
Plumbing the new version AFP pumps is a breeze.
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I hope it's the same inline configuration for the RV-9. I've got an AFP pump on order, but Van's engineers are currently redesigning some of the sheet metal to accommodate the new pump. The double-decker thing is OK, but it sure requires a lot of odd bends in the tubing.
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Doug
RV-9A "slider"
Flew to Osh in 2017, 2018 & 2019! 
Tail number N427DK
Donation made for 2020
You haven't seen a tree until you've seen its shadow from the sky -- Amelia Earhart
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