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UAT Position
I've seen a lot of UAT positioning. Which is the best position and where??
Hector |
RE: UAT Position
ORIGINAL: hmarmaizmd I've seen a lot of UAT positioning. Which is the best position and where?? Hector |
RE: UAT Position
Where ever you have a spot where you can monitor it. You don't want it 5 meters from your fuel pump.
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RE: UAT Position
Hi! Andy. Then why I've seen a lot of guys placing it completely upright if the pickup
tube doesn't extend all the way to the back?? Hector |
RE: UAT Position
ORIGINAL: hmarmaizmd Hi! Andy. Then why I've seen a lot of guys placing it completely upright if the pickup tube doesn't extend all the way to the back?? Hector You defininetly want to be able to see the lines to check on them for air bubble leaks while running if possible. I always use clear lines on fuel for this reason. |
RE: UAT Position
Hector,
If you orient the UAT as Andy indicated, then when you refuel the model thru the UAT, you will displace the air bubble (with fuel) out of the UAT and thru the tank system. If the UAT is vertical and you refuel thru the UAT, you'll be starting with a bubble in the UAT already as you've noticed (under the screw-on cap). I don't think it is necessary to have all the air out of the UAT, but I'd say that less is better. I orient mine as Andy states, whether it is a UAT, or a similar tank with a centered fuel filter... |
RE: UAT Position
ORIGINAL: Ron S Hector, If you orient the UAT as Andy indicated, then when you refuel the model thru the UAT, you will displace the air bubble (with fuel) out of the UAT and thru the tank system. If the UAT is vertical and you refuel thru the UAT, you'll be starting with a bubble in the UAT already as you've noticed (under the screw-on cap). I don't think it is necessary to have all the air out of the UAT, but I'd say that less is better. I orient mine as Andy states, whether it is a UAT, or a similar tank with a centered fuel filter... I wonder to know, why the UAT is not as similar as a fuel tank, with a flexible hose with clunk that pick up fuel from its bottom? If all the tanks and the one that works as UAT are filled full without air, why is needed an ultimate air trap? While this tank is full, being feeded by the other tanks, where is going the air come from? Guillermo |
RE: UAT Position
It would if your clunk had the same type of bubble removal medium or similar as a UAT. Some people do this and it seems to work fine.
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RE: UAT Position
ORIGINAL: AndyAndrews It would if your clunk had the same type of bubble removal medium or similar as a UAT. Some people do this and it seems to work fine. With UAT you can use only 3/4 of the fuel-..... I really don´t know if with a 4 Oz UAT, for a P-80, 1 Oz (1/4 of its capacity) of remaining fuel will give you 30 seconds of flight before a flame out.....? Guillermo |
RE: UAT Position
ORIGINAL: Guillermo Ibanez ORIGINAL: AndyAndrews It would if your clunk had the same type of bubble removal medium or similar as a UAT. Some people do this and it seems to work fine. With UAT you can use only 3/4 of the fuel-..... I really don´t know if with a 4 Oz UAT, for a P-80, 1 Oz (1/4 of its capacity) of remaining fuel will give you 30 seconds of flight before a flame out.....? Guillermo |
RE: UAT Position
There is no way a clunk will follow the fuel in a 4oz header. It would be best to mount a fixed pick up in the 3 dimentional center of the tank, even this way i believe you can get air if the tank goes 1/2 empty. With a UAT the perforated bladder type pick up it would work even if 1/2 the fuel is gone and still not draw air.
V.. |
RE: UAT Position
ORIGINAL: Vincent There is no way a clunk will follow the fuel in a 4oz header. It would be best to mount a fixed pick up in the 3 dimentional center of the tank, even this way i believe you can get air if the tank goes 1/2 empty. With a UAT the perforated bladder type pick up it would work even if 1/2 the fuel is gone and still not draw air. V.. No more questions about UAT, at least from my point o f view. Mine is installed exactly as Andy said in post No. 2 Guillermo |
RE: UAT Position
1 Attachment(s)
Here's mine. Many flights this way
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RE: UAT Position
I've always placed mine slightly upwards as per instructions.
Just wanted to get some input as to other positioning and, reasoning behind it. Hector |
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