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Engine basics => Engine set up tips => Topic started by: bob whitney on April 28, 2019, 09:30:25 PM
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looking for an old magazine article by Riley Wooten on setting up a suction Balloon tank for combat
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Hey Bob;
If you come up with a date and title, I should have the mag. You might want to check out the 1/2A section, as Larry Renger did a write up on balloon tanks for 1/2As, and I wouldn't think it should be much different for a bigger engine. It was basically one balloon inside another, with a pick up line and a vent line. That's all I can remember. Goldberg Models used to sell a nylon bracket for Cox engines that adapted to the product engines with no mounting holes, and it included a balloon and some tubing.
Type at you later,
Dan McEntee
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There is a discussion of a balloon tank (as used by Wooten) in Model Aviation, April 2004, page 159 in Von Lopez' combat column. It also tells the story of the protest at the 1984 NATS about it being a "pressure" tank.
Good luck,
Divot McSlow
PS--Mr. Renger has not lately advocated much for balloon tanks for his 1/2As. Quite the opposite. And another friend, Mr. Mustang Bill, has had little success despite significant fiddling with a Double-D stunt plane set up with a balloon-holder cowling. Just sayin'....
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there u go Dan, M/A april 2004,pg 159
think it has also been used in sport pylon racing
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The pylon racing tank is like a balloon tank inside a plastic tank. The plastic tank is muffler pressurized, which squeezes around the outside of the balloon. Sooner or later, you need to empty exhaust goo out of the plastic tank. It is critical that no air bubbles are introduced into the balloon while refueling. Otherwise, you get a burp at an unwanted time!
BB
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Bill u are right ,I remember it that way the bottle must be air tight