[NSRCA-discussion] SODA BOTTLE FUEL TANK

[Joe Lachowski]

Shrinkage in the cold?  Kind of reminds you of an old Seinfeld episode<g>


>From: "Ed Miller" <edbon85 at charter.net>
>Reply-To: NSRCA Mailing List <nsrca-discussion at lists.nsrca.org>
>To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
>Subject: Re: [NSRCA-discussion] SODA BOTTLE FUEL TANK
>Date: Fri, 17 Feb 2006 04:29:41 -0500
>
>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 enough 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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