[NSRCA-discussion] SODA BOTTLE FUEL TANK

[BUDDYonRC at aol.com]

In a message dated 2/15/2006 8:35:48 PM Central Standard Time,  
jivey61 at bellsouth.net writes:

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_ (mailto:wgalligan at goodsonacura.com)  
To: _NSRCA Mailing List_ (mailto:nsrca-discussion at lists.nsrca.org)  
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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Wow Jim
That's almost a pound of fuel the airplane must be a light weight.
Buddy
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