Received-SPF: pass
 receiver=logan.com; client-ip=64.233.162.202; envelope-from=wdleonard@gmail.com
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
        s=beta; d=gmail.com;
        h=received:message-id:date:from:reply-to:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references;
        b=ui8Jy4j49NdJjhwgdwejBc7aQVBBPeM8UTVhtN3h6ON1S11iTV8GdGkNtgvBICXdbCWzMXv6Yzq4dDHpeRt2M9bQVDYWYc9gMXRkdtXGhwOWbgQZYHNlWP6UwTkBRsfBMlVDcWvQR/6Sgt9lWh5UmkBNmMRPOudb1YL/2NQnzeg=
Message-ID: <1c23473f05042312071e51800f@mail.gmail.com>
Date: Sat, 23 Apr 2005 12:07:08 -0700
From: David Leonard <wdleonard@gmail.com>
Reply-To: David Leonard <wdleonard@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: RD-1B drive, and Warp Drive 3 blade prop for sale
In-Reply-To: <list-911990@logan.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline
References: <list-911990@logan.com>

Because you have to carefully flush and dry the system before
installing the Evans, I am waiting until I make and install a
supplemental ducting to augment the cooling before I switch (will have
the radiator off anyway).  So unfortunately, I will not be able to
give a straight up comparison either.

I note that going from straight water (with wetter) to 50/50 there is
about a 20deg. increase in average temperatures.  So with its even
lower specific heat, I fully expect an additional 10 deg increase with
the evan's in exchange for better corrosion resistance, greater safety
margin from boil over, lack of dependence on pressurization, better
anti-freeze protection than water alone, and environmental
friendliness.

I know that ken noted no difference in temps, and that would be great
but I am not expecting that to be the case.  Ken, were you using a
thermostat?  That would explain a lack of temperature difference.

Now that winter is over, I am going back to water today.  Turbo goes
on in 3 weeks, but no time for the ducting and Evans until probably
September.

Dave Leonard


>=20
> BTW, when are you going to install that Evan's coolant?  You suckered me
> into it, and it's working well.  Unfortunately, I made changes in my cowl
> exit area, so I can't compare before and after as well as you will be abl=
e
> to.
>=20
> Cheers,
>=20
> Rusty


--=20
Wm. David Leonard