[NSRCA-discussion] SODA BOTTLE FUEL TANK
jivey61 at bellsouth.net
jivey61 at bellsouth.net
Sat Feb 18 06:51:10 AKST 2006
Steve
The more of these cans that you emtpy and weigh the more the error possibility.
Jim Ivey
----- Original Message -----
From: spbyrum
To: 'NSRCA Mailing List'
Sent: Saturday, February 18, 2006 10:03 AM
Subject: Re: [NSRCA-discussion] SODA BOTTLE FUEL TANK
It might be necessary to weigh a large number of these cans, both with and without contents, in order to get an average weight. As there is no data on quality control during the manufacture of these cans, the weight of the cans themselves could vary greatly.
Steve Byrum
-----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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