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General control line discussion => Open Forum => Topic started by: John Given on September 14, 2020, 10:52:11 AM
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I’d like to get recommendations for a fuel tank that will work with a Fox .35 on a Flite Streak. Thanks!!
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Hey John,
Sourcing a tank for FliteStreaks is a classic problem.
There are two good solutions.
Solution one is to mount a square plastic cluck tank
on the port side of the nose. Use copper or brass tube
set in epoxy to lead the fuel line through the fuselage
to a filter.Then to the engine.
This works great and is very tidy.
The second solution is to make a tank.
I started making tanks because no really good tanks
you could buy would fit on a FliteStreak.
Here's how I make tanks.
https://stunthanger.com/smf/12-a-building/metal-tank-making/
IMHO, Streaks are worth the trouble. y1
Cheers! - K.
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this one woks well for me for a short nosed streak
or a chicken hopper tank
https://brodak.com/large-profile-uniflow-fuel-tank-4-oz.html (https://brodak.com/large-profile-uniflow-fuel-tank-4-oz.html)
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this one woks well for me for a short nosed streak
or a chicken hopper tank
https://brodak.com/large-profile-uniflow-fuel-tank-4-oz.html (https://brodak.com/large-profile-uniflow-fuel-tank-4-oz.html)
That one won’t work as I only have slightly over 2.5” between the LE and the backplate screws.
Will a chicken hopper give a more reliable run?
This one looks like it may work:
https://brodak.com/catalog/product/view/id/843/s/square-wedge-chicken-hopper-fuel-tank-3/category/1017/ (https://brodak.com/catalog/product/view/id/843/s/square-wedge-chicken-hopper-fuel-tank-3/category/1017/)
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Solution one is to mount a square plastic cluck tank
on the port side of the nose.
I think a chicken hopper is the same thing as a cluck tank.
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I think a chicken hopper is the same thing as a cluck tank.
On November 26, it'll be a turkey hopper!
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I use the GRW300U Snub Nose Uniflow from RSM. Excellent results.
http://www.rsmdistribution.com/index.php
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Bob ,i like that one best of the metal tanks i have had good results with the clunk tank on the inboard side
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I use the GRW300U Snub Nose Uniflow from RSM. Excellent results.
http://www.rsmdistribution.com/index.php
Thanks! It even says Flite Streak in the description!
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I think the original kit called for a Perfect #10
https://brodak.com/catalog/product/view/id/857/s/wedge-fuel-tank-2-1-3-oz/category/1017/
Or this one
https://brodak.com/deep-wedge-profile-standard-vent-fuel-tank-3oz.html
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Back in the olden days we used this style tank. https://brodak.com/catalog/product/view/id/939/s/large-profile-uniflow-fuel-tank-4-oz/category/1017/
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Bill Netzeband was right, as always: "Ask ten different guys which tank they use, and they'll show you ten different designs - ALL of which work best!" (I use home-made tinplate chicken-hopper tanks on my Peacemakers, by the way.)
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I think the original kit called for a Perfect #10
https://brodak.com/catalog/product/view/id/857/s/wedge-fuel-tank-2-1-3-oz/category/1017/
Or this one
https://brodak.com/deep-wedge-profile-standard-vent-fuel-tank-3oz.html
Are you trying to help someone learn to fly stunt or just re create what you did 40 -50 years ago
A standrd vent tank will start off rich and go lean every time you can go to lean and ruin your engine
Fred Quedenfeld
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I think a chicken hopper is the same thing as a cluck tank.
that is quote of the week!
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that is quote of the week!
Yeah, pretty much comedy gold!!
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Mounting a 4 oz. clunk tank like this works well on my own flight streak. Tank should be plumbed for uniflow venting for most consistent run. You have options! Good luck.
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Mounting a 4 oz. clunk tank like this works well on my own flight streak. Tank should be plumbed for uniflow venting for most consistent run. You have options! Good luck.
Thank you for posting a picture Paul!
I’ve ordered a BH-493 chicken hopper and will report how it works out.
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Are you trying to help someone learn to fly stunt or just re create what you did 40 -50 years ago
A standrd vent tank will start off rich and go lean every time you can go to lean and ruin your engine
Fred Quedenfeld
Hey Fred how's things?
Honestly trying to help, I use the same standard vent tank in my Fox Bi Slob and Fox Barnstormer and haven't had a problem with them going lean.
This one, not for a Flite streak. https://brodak.com/standard-vent-wide-wedge-fuel-tank-3-oz.html
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Thank you for posting a picture Paul! X2
This answers how to hang a tank on my UKIE .35.
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I’d like to get recommendations for a fuel tank that will work with a Fox .35 on a Flite Streak. Thanks!!
John,
I purchased a 4oz wedge tank then cut it down to my set-up.
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Flite Streak, Ringmaster, Buster & Shoestring are all a problem when you attempt to mount anything larger than a .19 cu. in. glow engine. This is due to the short space available between the wing leading edge and the back of the engine. If you attempt to mount a Fox .35 in the proper location you will likely only have 2-1/2 - 2-3/4" of tank space available. In my experience there are only a couple of ways to get sufficient fuel capacity to fly the modern pattern. The first is to do what Aviojet did and ignore the proper engine location and push the engine as far forward as possible. That solution will provide you with more space for a tank but it messes up the C/G so you will have to add lead weights to get the C/G back to where it is supposed to be. The second solution is to use a thick bodied fuel tank like a GRW Stub Nose or better yet a GRW Chicken Hopper tank. These thick bodied fuel tanks have 1 oz of fuel capacity for every 3/4" of fuel tank length. When you add on the Chicken Hopper you get an additional 1/2 oz of fuel capacity. Even if you use up the entire length available you will not likely get more than 3-3/4 oz of fuel capacity so depending upon how efficient your Fox .35 is you may just be able to squeeze out a full pattern.
I hope this information helps with your problem.
Regards
Eric Rule
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If you're running out of fuel too early, don't forget to try adding some Coleman stove/lantern fuel (2 > 6 oz per gallon) to extend range (considerably).
I noticed that Paul's Flite Streak has been restyled to bear a strong resemblance to a Ringmaster. Pretty tricky, Paul! LL~ Steve
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I truly do appreciate all the help with this tank dilemma. Obviously a few ways to skin the cat. I’ll report back my results.
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Here is a pic of the BH-493 tank mounted using a VPMA adjustable tank mount. I’ll do some ground tests. If that works out I’ll give it a whirl in the air!
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How did that tank work?
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Mounting a 4 oz. clunk tank like this works well on my own flight streak. Tank should be plumbed for uniflow venting for most consistent run. You have options! Good luck.
Paul, this looks like a Ringmaster!. H^^
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One thing to remember is this model came out in the late 50's (57/58?)and was for Combat, thus only 3 minutes of time was needed, thus a 3 1/2 oz tank was normal back then. D>K Still a PITA.... LL~
I had a profile Flite Streak with a 57' Black Head Combat Special and I remember having unstable engine runs with a standard open vent tank. About then a chicken hopper tank construction article in MAN got me interested in making one. It looked remarkably like the OP's tank.
I just added a small modified Kap-Pak tank and punched a few holes in the side of the main tank.
I didn't have the slightest idea of what I was doing or how it worked.....but it DID!
Great engine runs after that and I enjoyed quickly screwing myself into the ground time after time.
Pretty gnarly for a 15 year old....but I was determined!
I also used one of those VECO profile tanks but it didn't work anywhere as well as my home brew tank.
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Chicken hopper. Try uniflo setup first. Cap overflow vent, leaving uniflo open, either attached to muffler pressure or in comparatively undisturbed air, routing fuel line extension to uniflo so that opening is on inside of profile, opposite of cylinder. If there is weirdness in engine run. Runs rich then lean, back and forth, for instance, cap uniflo vent leave overflow vent open. Engine usually stabilizes. It will gradually lean up during flight. Profiles are prone to vibration weirdness. Our club runs lots of chicken hoppers.
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That one won’t work as I only have slightly over 2.5” between the LE and the backplate screws.
Will a chicken hopper give a more reliable run?
This one looks like it may work:
https://brodak.com/catalog/product/view/id/843/s/square-wedge-chicken-hopper-fuel-tank-3/category/1017/ (https://brodak.com/catalog/product/view/id/843/s/square-wedge-chicken-hopper-fuel-tank-3/category/1017/)
THat one will work. It does tend to lean out a bit after it settles down in the air. The venturi has to peump the fuel uphill for than a narrower standard stunt tank.
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I ordered a 3 oz Snub Nosed tank from RSM. He still has to make it. I ordered a 4 oz. tank also. We'll see how they work.
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Order a Twister kit from Sig. End of problem.
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Back in the 80’s I ended up with a Flite Streak with a MK. 5 Fox engine mounted . The previous owner could not get a tank that either fit or would run consistently. After some less than successful attempts with hard tanks my very successful answer was the combat flyers answer to most problems . A rocket tube and a bladder . Pulled the restrictor out and had me a 100 mph. + Flite Streak . It was all good fun until the crank broke .
Fox actually sent me a new crank for no charge . Things like that you don’t forget ! The image of the prop and crank helicoptering down to the ground at the school yard is still with me .
Brad
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Actually, I ordered a 3 1/4 oz chicken hopper and a 4 oz. snub nosed. I found out they are in the mail today. Can't wait to check them out.