Joseph M Berki wrote:

Hi Perry,
         I was surprised to see your AC without the duct.  I am redesigning
the cooling system for the Limo for the third time.  I built a scoop using
the submerged portion of the NACA inlet.  It runs from just behind the
landing brake 5 feet rearward.  The inlet opening is 2.5" X 10.5".  It
expands until it reaches the rad and oil cooler where there is a wedge to
stuff the air up through the rads into the cowling.  The whole thing is
made out of carbon for strength not so much for weight.  I have 18" X 20 to
22" to work with.  The rads will be mounted on a rack that can unbolt from
the airframe.  The scoop can also be removed by un bolting it in case I
have to redesign it.  I will send pics if you are interested.  I don't know
how the rad will be designed but your double volume unit looks interesting.

Joe Berki
Limo EZ

What kind of scoop Joe? Get any pictures?

Paul Lamar

Paul,

         Attached are pics of the scoop I built using the plug mold
technique, my first, and it is a little rough. 1303 - scoop, 1305 - wedge,
1312 scoop with exchanger rack, 1318, on AC. I still need to glass the
internal sides on the duct.  This really reduced the size of the lower
cowl.  It is a big improvement over the previous scoop.  I also have
already given up on using an evap core for oil cooling and am leaning
toward having Ed weld up a rad for this installation.  I will re-build the
rack to accommodate a 2nd gen cooler and the rad.  The hot air from the
exchangers will pressurize the upper cowl and be exhausted around the
spinner/prop or out an augmenter.  I am interested in P ports.

Joe

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