Walter
-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of jessejenks72@gmail.com
Sent: Friday, December 09, 2011 9:16 AM
To: rebel-builders@dcsol.com
Subject: [rebel-builders] Re: [rebel-builders] Header Tank
Walter,
I built my fuel system with a left, right, both, off selector on the floor. I don't have the shutoff valves in the wing roots. It has been working flawlessly so far, and I have even run a tank dry in flight. Per your cautions, I switch to BOTH in this situation to give air a way to escape. I takeoff and land on both, but frequently run on left or right to laterally trim the airplane. Do you have any special suggestions for me?
Thanks.
Jesse
Sent from my Verizon Wireless 4GLTE smartphone
----- Reply message -----
From: "Walter Klatt" <Walter.Klatt@shaw.ca>
To: <rebel-builders@dcsol.com>
Subject: [rebel-builders] Header Tank
Date: Fri, Dec 9, 2011 7:25 am
Just want to mention, too, that this discussion only applies to gravity feed fuel systems with no engine or electric pump. A pump will suck through the air. Although you can still have other issues like vapor lock.
Walter
-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Walter Klatt
Sent: Friday, December 09, 2011 6:22 AM
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] Header Tank
Yes, a larger fuel line would help with eliminating bubbles. I just don't want to blow this issue out of proportion, though. It is important to understand what can happen, but it is not something that I am concerned about. You just need to know how to properly operate your aircraft and fuel systems under all circumstances.
Walter
-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Ben Ransom
Sent: Thursday, December 08, 2011 9:56 PM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Header Tank
Bringing in Walter's advice not to over-complicate, the simpler version of your idea Ray might be to just be in the habit of always using up left tank first. (no transfer pump)
From the discussion I've wondered about using larger diameter fuel line.
This wouldn't prevent trapped air problems from pilot error in changing tanks. But it might prevent the air bubble problem ...and heck, that way I could consider my fuel lines a small header tank!
-Ben
On 12/5/11 11:59 AM, "ray" <raybot@comcast.net> wrote:
I,m thinking about dual tanks and gravity feed alot lately and although
my system has worked fine with one very notable exception I do not like
starting to worry about fuel stavation while still having usable fuel
in both tanks. I have the glass sight gauges mounted at an angle but
they are tee,d into the supply line.I want to throw out my idea for
discussion. I ,m thinking of using the passenger side tank as a main
tank and the pilot side as a aux tank with an electric transfer pump.
This is to transfer all usable fuel to one tank. My thinking is this
deepens the fuel, reducing sloshing and is easier to monitor. If I did
a header tank I am thinking of some
1.5
inch diameter aluminum tubing.thickwall with a conical cap with vent at
top.
This would mount vertical in the cabin as high and as long as practical
and be securely mounted and possibly even enclosed in some reinforced
hose for crash/leak protection. This would allow for some unporting and
frothy fuel to settle out. This is slightly more fuel in the cabin with
me but is still a gravity feed system. The aux tank could still fuction
as a main tank by opening the valve. My strategy right now is maximum
fuel at all times and I will fix the tee,d situation as my next
priority. I also am running the four blade warp in front of a 290 and I
like it but have nothing to compare it
to,it pulls hard on takeoff ant top speed is about 110 mph Ray
----- Original Message -----
From: <paul.lennemann@dcsol.com>
To: <rebel-builders@dcsol.com>
Sent: Sunday, December 04, 2011 9:34 PM
Subject: Re: [rebel-builders] Header Tank
On 12/4/2011 12:03 PM, rtpalmer@shaw.ca wrote to rebel-builders:
Thanks Bob, makes more sense to me now.
Paul
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