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Hi Todd,

Yes, they are aluminum, got them from a fellow in New York back in the mid 1990s who did them for Hot Rods. Very reasonably priced and yes, I would do it the same. I initially added the louvers when I was having oil temp problems (before I moved the oil cooler up under the spinner). They now probably help on the hottest days and after shutdown.

Here is the URL http://www.norwich.net/canfield/canfield/samples.htm you might look in his "samples" section and see examples on an aircraft.

Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC

----- Original Message -----

From: Haywire

To: Rotary motors in aircraft

Sent: Monday, February 02, 2004 11:22 PM

Subject: [FlyRotary] Exit louvers

Hi Ed;

    In the attached pic of your plane, is your louvers. I currently have my cowl at home as I'm making a few changes, (not as big a change as Rusty :-), so I'm considering adding some exit louvers as currently my exit area is only 1.2 times the inlet. My cooling has been fine due mainly to the venturi effect that I think (hope) that I'm getting from the exhaust pipe through my muffler housing. However I'd like to get a little better since I hope to visit some really hot places (wanna go back to Mexico :-).

    So my question is; Where did you get your louvers? Are they aluminium? Would you do it the same way again?

S. Todd Bartrim
Turbo 13B RV-9Endurance
C-FSTB
http://www3.telus.net/haywire/RV-9/C-FSTB.htm

   "Whatever you vividly imagine, Ardently desire, Sincerely believe in, Enthusiastically act upon, Must inevitably come to pass".

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