Received-SPF: pass
 receiver=logan.com; client-ip=209.86.89.66; envelope-from=jerryhey@earthlink.net
DomainKey-Signature: a=rsa-sha1; q=dns; c=simple;
  s=test1; d=earthlink.net;
  h=Date:Subject:Content-Type:Mime-Version:From:To:In-Reply-To:Message-Id:X-Mailer;
  b=HuQ9W7XkSSk9yfIbjT0dSyrK5c13o1qnZTAa050mfV/hMP1dqoO18ir+rsjMyb4h;
Date: Sun, 22 May 2005 15:20:26 -0500
Subject: Re: [FlyRotary] Re: Crash investigation
Content-Type: multipart/alternative; boundary=Apple-Mail-2-1047073003
Mime-Version: 1.0 (Apple Message framework v552)
From: Jerry Hey <jerryhey@earthlink.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
In-Reply-To: <list-953004@logan.com>
Message-Id: <EEFB9B8E-CAFE-11D9-AD43-0003931B0C7A@earthlink.net>


--Apple-Mail-2-1047073003
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain;
	charset=ISO-8859-1;
	format=flowed


On Sunday, May 22, 2005, at 02:02 PM, WALTER B KERR wrote:

>
> David S wrote:
> Preflight and Phase One support would be an important safety tool.=20
> There are "cheap" water brake "dynos" out there that can be used to=20
> vary loads on the engine to break it in (AND program its ECU) properly=20=

> from the safety of the ground. Price is in the small thousands, and=20
> "leases" are available for around $100/month. Without inferring=20
> speculation against the recent accident, can you fathom the benefit of=20=

> using such a device to determine IF and WHEN your engine will=20
> vaporlock? Or to determine EXACTLY how much HP you are making, so you=20=

> can size the prop for it? Or so you can adequately determine your BSFC=20=

> and efficiency? Or to know how much heat you really are generating, so=20=

> you know how much you have to dissipate? Such a device could be=20
> loaned/rented to members (or even NON-members for a premium... still=20=

> cheaper than Dyno time in a race shop)
> ---------------------------------------------
> I believe and easier=A0, less expensive way it to check your=20
> installation is using=A0 Tracy or Ed A's well known performance prop =
and=20
> simple do early testing with it. You will know if you are in the=20
> ballpark with total installation, ie intake, exhaust, etc. I did this=20=

> with Ed's prop and flew off my 40 hours with it. Now have got to get=20=

> my prop reduced in power consumption and either buy Ed's or fly with=20=

> mine. Hope to do so soon Ed, thanks for your patience.
> =A0
> Bernie

Sterba once told me that the only dyno he needed was one of his props. =20=

  Jerry
>

--Apple-Mail-2-1047073003
Content-Transfer-Encoding: quoted-printable
Content-Type: text/enriched;
	charset=ISO-8859-1


On Sunday, May 22, 2005, at 02:02 PM, WALTER B KERR wrote:


<excerpt>

David S wrote:

Preflight and Phase One support would be an important safety tool.
There are "cheap" water brake "dynos" out there that can be used to
vary loads on the engine to break it in (AND program its ECU) properly
from the safety of the ground. Price is in the small thousands, and
"leases" are available for around $100/month. Without inferring
speculation against the recent accident, can you fathom the benefit of
using such a device to determine IF and WHEN your engine will
vaporlock? Or to determine EXACTLY how much HP you are making, so you
can size the prop for it? Or so you can adequately determine your BSFC
and efficiency? Or to know how much heat you really are generating, so
you know how much you have to dissipate? Such a device could be
loaned/rented to members (or even NON-members for a premium... still
cheaper than Dyno time in a race shop)

---------------------------------------------

I believe and easier=A0, less expensive way it to check your
installation is using=A0 Tracy or Ed A's well known performance prop and
simple do early testing with it. You will know if you are in the
ballpark with total installation, ie intake, exhaust, etc. I did this
with Ed's prop and flew off my 40 hours with it. Now have got to get
my prop reduced in power consumption and either buy Ed's or fly with
mine. Hope to do so soon Ed, thanks for your patience.

=A0

Bernie

</excerpt>

Sterba once told me that the only dyno he needed was one of his props. =20=

Jerry

<excerpt>

</excerpt>=

--Apple-Mail-2-1047073003--