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Fuel Tank material

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captainron1(at)cox.net
Guest

Posted: Sun Feb 18, 2007 4:09 pm Post subject: Fuel Tank material

While I am waiting on the .25 angle alum engine mounts I started          looking at where to install the fuel tank. I looked at JOHN fuel tank          and knowing that I am not going to fly the distances he does decided          on a smaller tanks. I am thinking of two tanks along the tail boom. I          already snipped off the two little tubes who I guess are there for          fabric covering. I am not sure how many gallons I will end up carrying          at full load. But I am guessing 18 or so. I have not settled on exact          dimensions so I can't yet even attempt a math solution.              

         I can't remember from the old threads and sure don't know how to look          them up, what kind of aluminum we used. I have some memory that it          should be 5000 series but ain't sure. Any of you fabricators out there          let me know what you used. I think either 6061 or 5000 are used for          welding reasons.              

         anyone has constructed the tanks the way I am thinking of doing it?

            

      [quote][b]

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planecrazzzy
Guest

Posted: Sun Feb 18, 2007 4:22 pm Post subject: Re: Fuel Tank material

Look in the ACS&S catolog....They explain it there...it's in the front part by the Aluminum stock.....



Gotta Fly...

Mike in MN

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John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Sun Feb 18, 2007 4:35 pm Post subject: Fuel Tank material

| I can't remember from the old threads and sure don't know how to 

look them up, what kind of aluminum we used. I have some memory that 

it should be 5000 series but ain't sure.  Ron Mason



*********************************************************



Ron:



5052 is the preferred material for fuel tanks, both aviation and 

marine.



Very easy to use the archives.  This url is at the bottom of all posts 

to the Kolb List:



http://www.matronics.com/Navigator/?Kolb-List



When you arrive there, go down the list to see what you want to do. 

Archives search engine will help me find those posts that are relative 

to what I am looking for if the author used a good subject.  This is 

why it is important to keep a good subject line.  Archives search 

engine is here:



http://www.matronics.com/search/



On that page is says select search engine at the top of the page. 

Open the drop down menu and click on Kolb, or which list you want to 

search.



Three lines down it says:  Search String.  Simply put in there what 

you are looking for.  If you want to see what you have sent to the 

Kolb List, put your name in there.  If you want to see what I sent to 

the List, put Hauck in there.  If you want to pull up as much info as 

you can on fuel tanks, put fuel tank in the space.



Then hit begin search, and you are on your way.  Simple as pie.



john h

mkIII

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_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

captainron1(at)cox.net
Guest

Posted: Sun Feb 18, 2007 4:47 pm Post subject: Fuel Tank material

Thanks saw it there. next thing is the filler tube ain't seen it there. I need something like a car tube so I can get the gas into it. I swear last time I went through this I saw some outfit up in PHX that makes the whole thing for a reasonable price. Can't find them now. It would be nice to send the plans to someone and have the tanks come back ready to install. My Tig machine doesn't have AC so I can't weld aluminum.

Ron (Arizona)



==================



---- planecrazzzy <planecrazzzy(at)yahoo.com> wrote:



=============




Look in the ACS&S catolog....They explain it there...it's in the front part by the Aluminum stock.....



Gotta Fly...

Mike in MN



--------

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ceengland(at)bellsouth.ne
Guest

Posted: Sun Feb 18, 2007 5:46 pm Post subject: Fuel Tank material

Arizona Man wrote:

 	  Quote: 	
		   

 

 Thanks saw it there. next thing is the filler tube ain't seen it there. 

 I need something like a car tube so I can get the gas into it. I swear 

 last time I went through this I saw some outfit up in PHX that makes the 

 whole thing for a reasonable price. Can't find them now. It would be 

 nice to send the plans to someone and have the tanks come back ready to 

 install. My Tig machine doesn't have AC so I can't weld aluminum.

 

 Ron (Arizona)

snipped
	




If you can fold up the AL to make a proper fitting box, you can pop 

rivet it & 'proseal' it shut. A 5 sided box with flanges for the 6th 

side makes it easy to rivet the box 'dry' & seal the seams/rivets, then 

put the last side on 'wet'. Closed end pop rivets are available but 

wouldn't be needed with proper technique.



Most of the sealant makers make a sealant that is resistant to all the 

current auto fuel additives.



BTW, someone mentioned 'sloshing compound'. Be very sure the entire tank 

  is perfectly clean if you use it. Many homebuilders have had slosh 

begin to peal off in the tank, risking fuel pickup blockage. Experts 

think that this is caused when the slosh can't stick well to the 

not-perfectly-clean metal.



Charlie

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John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Sun Feb 18, 2007 6:07 pm Post subject: Fuel Tank material

| BTW, someone mentioned 'sloshing compound'. Be very sure the entire 

tank

|  is perfectly clean if you use it.

|

| Charlie

Charlie:



I cleaned my 25 gal aluminum tank with a gal of mek.  Sloshed it real 

good with the MEK before I sloshed it four times, once a day for four 

days.  I used Randolph Avn/Auto Slosh and Seal, which is no longer 

available.  It worked great for me, and after 15 years is still leak 

free.



Fuel tank slosh sealer is very prominently used in my other hobby, 

antique tractors.  These old fuel tanks are not nearly as easy to work 

with as nice clean aluminum.  There are many brands out there that 

work well.  We haven't had a tractor fall out of the sky and crash 

lately.  



A few important components of fuel system are:



1-a finger strainer fitting in the tank outlet.



2-a good tank vent on top of the tank, run out the bottom of the 

fuselage.



3-a sealed fuel filler cap.



4-Fitting top and bottom to connect a fuel sight gauge. If you mount 

the fuel tank up top behind the bulkhead, you can use a fuel sight 

gauge and not be bothered by electric gauges which are noted to 

malfunction.  My old sight gauge is still operational.



john h

mkIII

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_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

JRatcli256(at)aol.com
Guest

Posted: Sun Feb 18, 2007 7:19 pm Post subject: Fuel tank Material

Charlie and all,

  

 Hadn't thought about riveting an aluminum tank and not welding. Then sealing compound.

  

 What's the consensus on this? May have to reconsider.

  

 John Ratcliffe

  [quote][b]

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ceengland(at)bellsouth.ne
Guest

Posted: Sun Feb 18, 2007 7:54 pm Post subject: Fuel tank Material

JRatcli256(at)aol.com wrote:

 	  Quote: 	
		   Charlie and all,

  

 Hadn't thought about riveting an aluminum tank and not welding. Then 

 sealing compound.

  

 What's the consensus on this? May have to reconsider.

  

 John Ratcliffe


	


Works well for just about every all-metal homebuilt that uses leading 

edge wing tanks (also Boeing & various other commercial/military mfgrs).



Charlie

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