Roto Flow fuel tank

[Knife-Edge]

Guys I was wondering if any of you are using the roto flow fuel tanks from www.jlproducts.net. These tanks look pretty neat and I was thinking of ordering one for my EF 104 extra.

 

[BikeRacer]

I saw one being used in a CARF at an IMAC contest and the pilot seemed to be pretty pleased with it. He even pulled it out and we all looked at it, seemed like a very good design; the rotating clunk is on some sort of bearing so it rotates extremely smoothly. I was thinking of getting one myself am curious at other people's opinions who have used them.

 

[Pbilt024]

I had one for a year or so and it never gave any problems. I left it in the plane, so I don't know how it's doing now.

 

[Crashin' Keith]

Pbilt024;17205 wrote: I had one for a year or so and it never gave any problems. I left it in the plane, so I don't know how it's doing now.

What happens on a downline? Doesn't the clunk stay at the back of the tank, which would take it out of the fuel.

 

[jaybird]

Clunk stays in the back of most any tank. It should anyway.



The Rotoflow, seems like a good enough idea, but way to many moving parts to solve a problem that doesn't really exist with a conventional tank with a felt clunk. I have deadsticked a couple of my planes out of fuel with a felt clunk, and it gets every drop.

 

[stangflyer]

Crashin' Keith;17217 wrote: What happens on a downline? Doesn't the clunk stay at the back of the tank, which would take it out of the fuel.

I've considered this tank as well. But I am with jaybird on this. Not sure I am comfortable with "moving" parts in my tank. As I understand it, "G" force on downlines keeps your fuel at the back of the tank. That same force keeps our clunks back there also right? If it ain't broke, don't fix it.

 

[Knife-Edge]

Thanks for the input guys, I think I'll order one and see how it goes. Btw should I go with a 32 oz or 40 oz tank on the EF 104 extra running a DLE 120?

 

[Pbilt024]

32 will get you 10-11 minutes with reserve left over

 

[Silver Fox]

stangflyer;17261 wrote: I've considered this tank as well. But I am with jaybird on this. Not sure I am comfortable with "moving" parts in my tank. As I understand it, "G" force on downlines keeps your fuel at the back of the tank. That same force keeps our clunks back there also right? If it ain't broke, don't fix it.

I guess seeing is believing. This should answer your question of what actually happens inside your tank on a downline. Adjust your clunk accordingly.

Wayne



http://m.youtube.com/watch?v=WtbSqEtLQX4

 

[Ohio AV8TOR]

Silver Fox;17350 wrote: I guess seeing is believing. This should answer your question of what actually happens inside your tank on a downline. Adjust your clunk accordingly.

Wayne



http://m.youtube.com/watch?v=WtbSqEtLQX4

Thats why I use the Walbro felt clunks to help hold more fuel when it is not in the fuel. Might not be needed but I feel better. Also makes you wonder why we don't use bladder tanks.