Fuel/Water, Bearing/Rust

[Robert J. Karasiewicz & Patricia R. de la Fuente]

Now you're getting somewhere.
Nitromethane can degrade to methanol and nitric acid in the presence of
small amounts of water.  This reaction takes some time and it is faster in
warm weather.  Large amounts of water will probably inhibit the reaction.
As to putting large amounts of water in fuel:
When I was 14 and couldn't afford fuel, I tried to run my Forster 29 on
rubbing alcohol.  It ran!  30% water in isopropyl alcohol.  Not very good
but...
----- Original Message ----- 
From: <vicenterc at comcast.net>
To: <discussion at nsrca.org>
Cc: "Bob Pastorello" <rcaerobob at cox.net>; <discussion at nsrca.org>
Sent: Saturday, December 06, 2003 7:18 PM
Subject: Re: Fuel/Water, Bearing/Rust


> I remember reading the Mintor instructions.  The instructions recommends
to run the engine with NO nitro if you are not planing to fly again for more
than a week.  Also, I remember many years ago when I flew in Venezuela with
NO nitro and we didn't have bearings problems.  Looks like we need to find
out if Nitro is causing the problems particularly in 2 C engines with large
pipes.  I think the nitro residues condense and form strong acid that
attacks the metals.
>
> Vicente
>
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