ggower_99(at)yahoo.com
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 Posted: Sat Feb 18, 2006 11:34 pm Post subject: Fueling high wing aircraft. (long) |
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Hello Johann,
I will try to explain the best I can, hope I can get understood.
I also thought about the same thing... But this "artifact" with battery, electric pump, etc. is heavy and bulky. Will only work on your hangar, not practical at all, to take over in Xcountries, when landing in strips and Airclubs where gas is not available... Here is very common. Most of us have a few 5 galons red containers in our hangar that we take home and fill every week, as needed...
So I designed a simple practical gas filling tank made out of easy to find parts... Is light and inside a plastic bag, fits in the corner of our 701 luggage area.
First a modified cheap gas cap (mine from an old VW, yes they fits our tanks neck).
We welded (brassed) two copper tubes, side by side, with 90o elbow, at the center of the cap (remember to get the gasket off before brassing or will melt, once welded and cold, install it back).
One tube is 1/2" dia, to conect the filling hose. The other (for the overflow) tube is 1/4" and betwen two and 3 inches inside the filler neck, depend of the level you want to fill the tank, this tube has a short hose (3 foot long) to a vented plastic bottle, to see when the gasoline is coming out, once the tank is full.
This is important because the tank is over the wing and you cant see when is full, standing in the floor (Yes, before this, lots of gasoline was lost when tank was sifoned full and gas container still had gas...)
We use a 10 liter (about 2,5 gallon) red plastic gas container. this full of gas is light enough, so we can hang it in the first slat support. The main cap of this container also was easy modified so a tight conector can go though and conect the filler hose with another piece of hose that goes inside to the bottom of the container, Important: This cap conection has to be airtight.
In the vent side of this container I fitted a conection for another piece of hose about 2 feet long.
Once the conteiner if full, I hang it in the wing, the filling cap is installed in the tank, I tight the container cap.
Using a double action plastic hand pump (for air toys and mattreses) I hold with one hand the pump to the pressure side (also a 1/4") hose in the container and pump with the other hand, like inflating a bicicle tire. A few pump strokes will send the gas fast to the tank.
I know, we have to fill 2 or 3 times this little container, but is light enough to reach it up.
Once the full level of the overflow tube of the temporary gas cap is reached, We just let go the pump form the hose and the gasoline transfer stop, no gas spill... The little gasoline remains in the overflow bottle, can be poured back to the container.
Yes I know, a photo is better than a 1,000 words, but just got back from flying a few minutes ago, and will not go to fly in two weeks, (family reunion next weekend) so no chance to take a photo soon, sorry.
Hope this helps. Remeber everything in aviation: Keep It Simple... and light.
Saludos
Gary Gower
701 912S
Flying form Chapala, Mexico.
"Johann G." <johann(at)rafpostur.is> wrote:
Hello list members.
I am sending this again, because I think it did not go through the first time.
I have been working on a way to fuel my Zenith 701 with an easy method.
The old method to syphon the fuel from a plastic container while standing
on a ladder is not the best method.
The idea was to use a high volume electric pump with a fuel filter and a
toggle switch to turn on and off.
I would like to hear from you list members how you have solved this
fueling problem and if anyone is using an electrical fuel pump for this,
what kind and how powerful is the pump, i.e. how many GPH capability?
Thank you in advance.
Johann G.
Iceland.
Joeing 701
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