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Message-id: <7C6810C212CA42FB90F50EB714C36C46@yvon>
From: Yvon Cournoyer <geryvon@videotron.ca>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
References: <list-3540259@logan.com>
Subject:
 =?iso-8859-1?Q?Re:_=5BFlyRotary=5D_Re:_87_OCTANE_MOGAS_TEST_=28SOREL-TR?=
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Date: Mon, 09 Mar 2009 12:44:13 -0400

Thanks Bob
I was unsure how to interpret the results

----- Original Message ----- 
From: "Bob White" <bob@bob-white.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Monday, March 09, 2009 12:06 PM
Subject: [FlyRotary] Re: 87 OCTANE MOGAS TEST (SOREL-TRACY, PROVINCE DE 
QUÉBEC, CANADA)


Hi Yvon,

My interpretation would be the 25 to 40 ml increase represents 15 ml of
alcohol.  That would represent
15 ml alcohol / 200 ml fuel + alcohol = 7.5 %

I've never actually done one of these tests, so if I've got it wrong
let me know. :)

Bob W.


On Mon, 09 Mar 2009 10:58:42 -0400
Yvon Cournoyer <geryvon@videotron.ca> wrote:

>
>     Yesterday I went to the Sorel airport and tested the fuel in my
> Zenith 90 liters tank.
>
>     This fuel already contains two stroke oil in the ratio of 1:130 
> per
> volume.
>
> In a cylindrical ungraduated container I poured 25 ml of tap water and
> added 200 ml of fuel
>
> After  1 hour and several vigourous shakings I observed an increase in
> the volume of water to 40 ml
>
> The increase is about 4% (?)
>
> All quantities are approximate.
>
> Since I began running and flying my 1986 Mazda 13B engine, I have 
> tested
> in flight all grades of mogas and also 100LL avgas. I would wait until
> my fuel level was very low and would fill my tank with the différent
> grade. Never detected a change in the performance of my engine. The 
> only
> times I drew water from my fuel tank was when it was filled with 100LL
> avgas.
>
> Yvon Cournoyer.
>
>
>
>
>
> --
> Homepage:  http://www.flyrotary.com/
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-- 
N93BD - Rotary Powered BD-4 - http://www.bob-white.com
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