Received-SPF: none
 receiver=logan.com; client-ip=66.163.170.81; envelope-from=dcarter@datarecall.net
Message-ID: <066d01c5557c$297a1720$6401a8c0@ip.net>
Reply-To: "David Carter" <dcarter@datarecall.net>
From: "David Carter" <dcarter@datarecall.net>
To: "flyrotary" <flyrotary@lancaironline.net>
Subject: Fw: RV-List: RE: To ram air or NOT to ram air -- that is the question
Date: Tue, 10 May 2005 11:20:18 -0500
MIME-Version: 1.0
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: 7bit

Using something like this "ram air" "enhanced induction duct" "located a bit
further away from centerline of prop to get more prop effect" is definitely
"going in the right direction".

David

----- Original Message ----- 
From: "Kevin Williams" <kevinsky18@hotmail.com>
To: <rv-list@matronics.com>
Sent: Tuesday, May 10, 2005 9:11 AM
Subject: RE: RV-List: RE: To ram air or NOT to ram air -- that is the
question


> --> RV-List message posted by: "Kevin Williams" <kevinsky18@hotmail.com>
>
> Has anyone looked at or installed a ram air induction system from Jon
> Johanason? http://www.flymore.com.au/
>
> He has some great products and I'm tempted to believe that his ram air
> induction might work a touch better then the standard open inlet.
>
> here is a quote from his product site.
>
> "Extensive flight-testing has shown increases in excess of 2 of Manifold
> Pressure Recovery at 1,500 and 1" of Manifold Pressure Recovery at 10,000.
> These increases are improvements compared to Vans snorkel type induction
> (not the rhino horn induction)."
>
> There is actually a full page write up on it on his web site.
>
> kev
>
>
> From: "Marcus Cooper" <coop85@bellsouth.net>
> To: <rv-list@matronics.com>
> Subject: RV-List: RE: To ram air or NOT to ram air -- that is the question
> Date: Mon, 9 May 2005 18:21:14 -0400        7.50 BARRACUDA_HEADER_FP56
RBL:
> Blacklist bl.spamcop                      [Blocked - see
> <http://www.spamcop.net/bl.shtml?68.217.221.11>]
>
> --> RV-List message posted by: "Marcus Cooper" <coop85@bellsouth.net>
>
> Dan,
>
>      Great effort and research, pretty slick how your filtered setup
worked
> so well.  One other thought is based on an experience with my first
> airplane, a Q-2/200.  A friend of mine experimented with the ram air
aspects
> as all the engines were set up that way with some very creative filters (a
> t-shirt for example).  One thing guys tried was varying lengths of the
inlet
> with the focus being on how close to the prop you should get.  The closer
> you got, the better the performance and the impression was you got a bit
of
> a turbo-type boost as the prop went buy.  The next step was to align the
> prop so you would get the most benefit of the pressure and that was based
on
> trying to get a blade past the inlet about the time an intake valve was
> about to open.  Far from an exact science, but some guys seemed to have
> pretty good success with it.
>
>
> Marcus
>
> RV-10, tailcone well on it's way, QB on the ocean
>
>
> _-============================================================
> _-=          - The RV-List Email Forum -
> _-= Use the Matronics List Features Navigator to browse
> _-= the many List utilities such as the Subscriptions page,
> _-= Archive Search & Download, 7-Day Browse, Chat, FAQ,
> _-= Photoshare, and much much more:
> _-=
> _-= --> http://www.matronics.com/Navigator?RV-List
> _-============================================================
>
>
>
>
>
>