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General control line discussion => Open Forum => Topic started by: Larry Fernandez on December 06, 2020, 12:11:10 AM
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I need to make a couple of fuel tanks tomorrow and would like to know what is the preferred tubing to use.
I have used both copper and brass in the past, but have been told that one of the two is easily corroded by our fuels, but can’t recall which is preferred.
Larry, Buttafucco Stunt Team
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I need to make a couple of fuel tanks tomorrow and would like to know what is the preferred tubing to use.
I have used both copper and brass in the past, but have been told that one of the two is easily corroded by our fuels, but can’t recall which is preferred.
Larry, Buttafucco Stunt Team
Copper, as in "you'll never take me alive, copper!"
Brett
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and crack open in the looongrun
What part of the tank is the looongrun? Is that like a special baffle or something? ;D
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Copper if you're using glow fuel. Copper or brass if you're using diesel. Glow fuel makes brass turn green!.
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It's amazing how fast fuel gets to brass tubing in this day and age. It's the nitro that does it and I don't think any nitro we use is made in this country any longer. It didn't used to be that way. At the hobby shop I used to work, we sold a of K&B fuel. It was more expensive, but the competition like Red Max at the time used imported nitro that was cheaper, but would attack brass. To illustrate this, we kept a baby food jar filled with each and a length of brass tubing in it on the parts counter. It only took a day or so for the brass to start turning really cruddy. If you use any Pylon/Sullivan plastic tanks and use the brass tube that is supplied with it, it is at least easy to change, but easy to see the corrosion starting and growing. If we want to fly we have not much of a choice but it helps to flush your engines at least now and then with an after run oil.
Type at you later,
Dan McEntee
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You’ll want to gold plate the copper to bring it up to JCT/BST standards.