Fuel tubing for clunks

Stuka Stunt Main Forum · 6 of 6 known posts recovered

Vince · Dec 09, 2004 09:00 PM

Any recommendations for a good fuel tubing to use in a clunk tank? Very flexible, and able to have long service, would be the ideal.
Normally I use AeroTrend fuel line, but it does not flex enough in a fuel tank to properly function. I tried surgical tubing, it flexes great, but life-span is a problem (I don't want to re-plumb mid-flight).
Got specific brand names/sizes? I already have the "why don't you use a decent fuel line" kind of answer.

Bill Little · Dec 09, 2004 09:02 PM

#1 source

Sullivan sells the semi clear line that comes in their tanks. Got some at the LHS. Can't give you a part number.

Bill <><

When the character of a man is not clear to you, look at his friends.
Japanese Proverb

dennis · Dec 09, 2004 09:27 PM

#2 source

LAST EDITED ON Dec-09-04 AT 09:28 PM (CST)

The best stuff is sold by Kraft/Hays for their tanks. It's Buena N and looks like black rubber. Not to worry as this is compatable with glow fuel. It is very flexible and doesn't deteriorate. It grips fuel pickups well and forms a good seal around them. Sold in 4 foot packages and your hobby shop should be able to get the stuff from any of his major suppliers.
This stuff is used by a lot of Heli flyers in their tanks because it really is flexible and resists splitting which is a definite no-no in any fuel system.
Dennis

DesignMan · Dec 10, 2004 04:48 PM

#3 source

Check out the Viton tubing from www.smallparts.com It is Hidgeous Expensive, but everything-proof and very flexible. Even OK for gasolene and Dizeasle fuel. They stock a nice range of sizes. Since you will only use it in the clunk line, the cost isn't all that bad per plane.

Larry Renger
think S.M.A.L.L.

dirtydan · Dec 10, 2004 07:12 PM

#4 source

A good bit of the problems with clunk tanks and suitable tubing come from the fact that many leave the metal tubing too long inside the tank. This means less flexible tubing to, uh, flex. Cut the hard tubing off as short as possible while still having a secure connection.

Dan

Steve Helmick · Dec 10, 2004 11:59 PM

#5 source

>Check out the Viton tubing from www.smallparts.com It is
>Hidgeous Expensive, but everything-proof and very flexible.
>Even OK for gasolene and Dizeasle fuel. They stock a nice
>range of sizes. Since you will only use it in the clunk
>line, the cost isn't all that bad per plane.

Holy Hoses, DesignMan!!!! They should gold plate it for that price...
I'd vote for shortening the fixed tubes as short as possible (per Dirty), and get a heavier clunk, if needed. Steve

PS: Dan:

http://www.nwskyraiders.com/index.html