Mailing List flyrotary@lancaironline.net Message #29435
From: george lendich <lendich@optusnet.com.au>
Subject: Re: [FlyRotary] Re: Auto fuel
Date: Wed, 18 Jan 2006 20:07:41 +1000
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Al,
You must be speaking about Polyester as Epoxy must absolutely maintain a strict ration mix, as per manufacturers instructions, to allow proper molecule to molecule bonding of the hardener and the resin. Polyester on the other hand has flexibility in that, more hardener promotes hardening sooner.
George (down under)
I tested the hell out of that. No effect. Years of exposure to different batches of known alcohol. I understand that if you use a resin of high proportions of hardener to resin, it's resistant. If you use 50/50, it isn't. I had 50/50 get soft from fuel exposure.
This info consistent with all the other guys that did the same test.
 

-al wick
Artificial intelligence in cockpit, Cozy IV powered by stock Subaru 2.5
N9032U 200+ hours on engine/airframe from Portland, Oregon
Prop construct, Subaru install, Risk assessment, Glass panel design info:
http://www.maddyhome.com/canardpages/pages/alwick/index.html
On Tue, 17 Jan 2006 22:21:34 -0600 "William" <wschertz@ispwest.com> writes:
It will make it less attractive for those with fiberglass tanks. Alcohol/gas mixes are more aggressive than either gas or alcohol alone.
Bill Schertz
KIS Cruiser # 4045
----- Original Message -----
Sent: Tuesday, January 17, 2006 8:17 PM
Subject: [FlyRotary] Auto fuel

By the Farm Bureau Paper it is stated that Wisconsin has passed a law that all 87 no lead will contain 10% alcohol and that nine other states are considering it.  It didn't mention the other no lead grades.  Here in Michigan it is under consideration at this time, and there is a good chance it pass.  Other than cutting the power some what, is going to effect the operation of the rotary in some other way.  JohnD
 
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