[NSRCA-discussion] SODA BOTTLE FUEL TANK

Wayne Galligan wgalligan at texasairnet.com
Sat Feb 18 15:25:33 AKST 2006


Chuck,

The Coke bottle still has the advantage. Wont crush easily and by the time you add a stopper the aluminum fuel tank will weight about the same as a regular fuel tank.  My soda bottle fuel tank weights 1.7oz complete...before beer.  But if you weight enough of those beer can bottle shaped thingies you wont care anyways.

Wayno
  ----- Original Message ----- 
  From: Chuck Hochhalter 
  To: 'NSRCA Mailing List' 
  Sent: Saturday, February 18, 2006 11:50 AM
  Subject: Re: [NSRCA-discussion] SODA BOTTLE FUEL TANK


  Generally I listen more than I speak in discussions here but in this case I happen to be an expert.  Just happen to have a 16 oz Budweiser select aluminum "bottle" here and it weighs 2.1 oz.

   

  Enjoy!

   

  Chuck Hochhalter

   

  -----Original Message-----
  From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of brian young
  Sent: Saturday, February 18, 2006 8:53 AM
  To: NSRCA Mailing List
  Subject: Re: [NSRCA-discussion] SODA BOTTLE FUEL TANK

   

  Anyone seen the aluminum bear bottle shaped bear cans? Wonder what those weight empty.....could be an interesting excercise some evening.....

  Ed Miller <edbon85 at charter.net> wrote: 

  Won't it still shrink in the cold ??

  Ed M.

    ----- Original Message ----- 

    From: Dean Pappas 

    To: ! NSRCA Mailing List 

    Sent: Thursday, February 16, 2006 5:23 PM

    Subject: Re: [NSRCA-discussion] SODA BOTTLE FUEL TANK

     

    The bottle that rubbing alchohol is typically sold in is made of polyethylene. They are typically very thin walled, and light.

    Maybe this would solve some of your shrinkage problems?.

     

    Dean Pappas 
    Sr. Design Engineer 
    Kodeos Communications 
    111 Corporate Blvd. 
    South Plainfield, N.J. 07080 
    (908) 222-7817 phone 
    (908) 222-2392 fax 
    d.pappas at kodeos.com 

      -----Original Message-----
      From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of jivey61 at bellsouth.net
      Sent: Thursday, February 16, 2006 5:17 PM
      To: NSRCA Mailing List
      Subject: Re: [NSRCA-discussion] SODA BOTTLE FUEL TANK

      Wayne

       I just flew the coke bottle tank today and I get 15 minutes on 24 oz of fuel.It actually draws fuel down to 1 oz in the tank,doing the Masters pattern.

      The upside is I don't have to fill it full to complete the pattern. The weight savings is 2.5 oz using this tank.

       To review...... this was a 33 oz, 1 liter coke bottle' that I pickled with 30 % heli for 2 months.

       ! 

      Jim Ivey

        ----- Original Message ----- 

        From: Wayne Galligan 

        To: NSRCA Mailing List 

        Sent: Thursday, February 16, 2006 8:28 AM

        Subject: Re: [NSRCA-discussion] SODA BOTTLE FUEL TANK

         

        Wow!!!  24 oz....    I can fly 15 min. on the 15.9 oz. bottle with my OS 1.40.  I was wondering why these wide body planes started getting so popular.... got to have'em so you can put a big en! ough fuel tank in them.

         

        Wayne

         

          ----- Original Message ----- 

          From: jivey61 at bellsouth.net 

          To: NSRCA Mailing List 

          Sent: Wednesday, February 15, 2006 8:36 PM

          Subject: Re: [NSRCA-discussion] SODA BOTTLE FUEL TANK

           

          Wayne

           I was getting ready to update my experiment with the 33 oz coke bottle filled with fuel 30%. I let it sit and shrink for 2 months,then when! it appeared to stop shrinking I removed the fuel and carefully measured the volume.The bottle started life as 33 oz,1 liter and now holds 24 oz liquid. Which is perfect for a thirsty 160 DZ with a 4 blade prop.I have it in my Smaragd and will fly (test) tomorrow. Should work fine and no more shrinking.

           

          Jim Ivey

            ----- Original Message ----- 

            From: Wayne Galligan 

            To: NSRCA Mailing List 

            Sent: Wednesday, February 15, 2006 6:21 PM

            Subject: [NSRCA-discussion] SODA BOTTLE FUEL TANK

             

            FYI...   I had a conversation with a flying friend the other day about the
            soda bottle fuel tanks and the way they shrink.  He happens to work for
            Pepsi and explained to me that the bottles are blow molded.  He said if they
            are not used with in a certain period of time that the memory in the plastic
            takes over and they will shrink in size and then they have to discard the
            old bottles.  The carbonized soda keeps the shape of the bottle till used.
            He said that most likely the nitro content speeds up the process and could
            explain why some of you using them with higher then 15% nitro are
            experiencing this phenomenon.
            So.... drink another one.... rinse and fill.

            Wayne Galligan


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