Subject: Scoop
From: ACRE
Date: 7/8/2003, 11:40 AM


Joseph Berki wrote:

Hi Paul,
        Attached is the scoop arrangement for cooling the rad and the oil
cooler.  Will air follow the curve of the fuselage just before entering or
will I need a snorkel to get to the free air?  Opening is 4.5 X 17 just a
bit under 25% of the cooling area. There is a shot from the inside to the
opening.   I tried to limit the amount of scoop as it presents drag.  I am
also going to leave the scoop and part of the lower cowl as part of the air
frame.  Usually this is a removable cowl.

Joe Berki
Limo EZ

You need a boundary layer air bleed (snorkel) about 2 inches high just above the scoop.
Size is about right. Here is a nice one made by Gary Spencer.

Making it part of the airframe is a good idea as it will add strength without
adding any weight.

BTW Speaking of Gary Spencer did anybody go to the Jackpot air races this past weekend?
I am very curious as Gary is close to beating Klause. He went 242 MPH at
Bonneville awhile back in his direct drive race modified Ford V8.

Paul Lamar

If you extend the scoop forward of the landing gear you will have room for a nice 
smooth lower drag boundry layer bleed curve.

Paul Lamar
 
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