Today's Message Index:
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1. 04:33 PM - Sam James Cowl (Bill Anton)
Message 1
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--> RV8-List message posted by: "Bill Anton" <bnanton@pld.com>
I'm close to finishing my RV-8 and have chosen to install the SJ cowl,
plenum, and wheel pants. I am using the 200hp Lycoming IO360 A1B6 in
conjunction with the Whirlwind 200RV prop. The first -8 cowl was received 6
months ago and we've just begun the installation. The cowl will not work
without a prop extension without extensive fiberglass work. Will James
directed me to a company called Sabre Manufacturing that machines a very
beautiful prop extension. In speaking with the owner, he assures me that
there will be no prop restrictions with the use of this extension and that
they have never had a problem with this. I have heard that the heavier
Hartzell CS prop could have some restriction with an extension. You should
check with Sabre Mfg for their input.
The original cowling would not fit the engine and Will James is in the
process of redesigning the cowling to fit the RV-8 with the 200hp lyc. He
has changed the design, including materials used, to create a lighter and
stronger cowling than previously offered. The plenum with baffling has been
installed and looks great. At this point I can't answer any of the
questions regarding increased speed etc. I chose the SJ products because I
like the appearance and wanted something a little different. Hopefully,
there will be some speed and/or economy benefits. It will be difficult to
quantify without apple to apple comparisons which are hard to come by with
all the different ways the RVs are built.
Bill
-----Original Message-----
From: owner-rv8-list-server@matronics.com
[mailto:owner-rv8-list-server@matronics.com] On Behalf Of RV8-List Digest
Server
Sent: Wednesday, May 10, 2006 1:58 AM
Subject: RV8-List Digest: 1 Msgs - 05/09/06
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Total Messages Posted Tue 05/09/06: 1
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Today's Message Index:
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1. 03:54 AM - James Cowl (Glen Matejcek)
________________________________ Message 1
_____________________________________
Time: 03:54:55 AM PST US
From: "Glen Matejcek" <aerobubba@earthlink.net>
Subject: RV8-List: James Cowl
--> RV8-List message posted by: "Glen Matejcek" <aerobubba@earthlink.net>
Hi All-
One thing that I haven't seen mentioned is the effect an SJ cowl has on
acro. Recall the cracking issues around the lightening holes in the Lyc
crank prop flanges when those cranks were used in hard acro. A prop
extension will only make that tendency worse. While I'm sure nobody is
actually going to do hard acro in an RV, a heavy CS prop on the end of an
extension might cause cracking over time with 'light' acro, whatever that
is.
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